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µchiller 3

ENG

User manual

We wish to save you time and money!

We can assure you that the thorough reading of this manual will guarantee correct installation and safe use of the product described.

IMPORTANT WARNINGS

BEFORE INSTALLING OR HANDLING THE DEVICE PLEASE CAREFULLY READ AND FOLLOW THE INSTRUCTIONS DESCRIBED IN THIS MANUAL.

This device has been manufactured to operate risk-free for its specific purpose, as long as:

it is installed, operated and maintained according to the instructions contained in this manual; the environmental conditions and the voltage of the power supply correspond to those specified.

All other uses and modifications made to the device that are not authorised by the manufacturer are considered incorrect.

Liability for injury or damage caused by the incorrect use of the device lies exclusively with the user.

Please note that this unit contains powered electrical devices and therefore all service and maintenance operations must be performed by specialist and qualified personnel who are aware of the necessary precautions.

Disconnect the unit from the mains power supply before accessing any internal parts.

INFORMATION FOR USERS ON THE CORRECT HANDLING OF WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)

In reference to European Union directive 2002/96/EC issued on 27 January 2003 and the related national legislation, please note that:

1. WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of separately;

2. The public or private waste collection systems defined by local legislation must be used. In addition, the equipment can be returned to the distributor at the end of its working life when buying new equipment.

3. The equipment may contain hazardous substances: the improper use or incorrect disposal of such may have negative effects on human health and on the environment;

4. The symbol (crossed-out wheeled bin) shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately;

5. In the event of illegal disposal of electrical and electronic waste, the penalties are specified by local waste disposal legislation.

INTRODUCTION …………………………………………………………………………………………………………………………………………………………. 5

1.1

General description ………………………………………………………………………………………………………………………………………………. 5

1.2

User interface ………………………………………………………………………………………………………………………………………………………. 5

1.3

Programming procedure ………………………………………………………………………………………………………………………………………… 6

PGD0 TERMINAL ……………………………………………………………………………………………………………………………………………………….. 6

2.1

Passwords and levels of access ……………………………………………………………………………………………………………………………… 6

2.2

Type of connectors ……………………………………………………………………………………………………………………………………………….. 6

APPLICATIONS ………………………………………………………………………………………………………………………………………………………….. 7

3.1

AIR/AIR units, single circuit ……………………………………………………………………………………………………………………………………. 7

3.2

AIR/AIR units, two circuits ……………………………………………………………………………………………………………………………………… 7

3.3

AIR/AIR units, two circuits, 1 condenser fan circuit ……………………………………………………………………………………………………. 8

3.4

AIR/AIR heat pumps, single circuit ………………………………………………………………………………………………………………………….. 8

3.5

AIR/AIR heat pumps, two circuits ……………………………………………………………………………………………………………………………. 9

3.6

AIR/AIR heat pumps, two circuits, 1 condenser fan circuit ………………………………………………………………………………………….. 9

3.7

AIR/AIR chillers, single circuit ……………………………………………………………………………………………………………………………….. 10

3.8

AIR/AIR chillers, two circuits, 2 condenser fan circuits and 2 evaporators …………………………………………………………………… 10

3.9

AIR/WATER chillers, two circuits, 1 condenser fan circuit …………………………………………………………………………………………. 11

3.10

AIR/WATER heat pumps, single circuit ………………………………………………………………………………………………………………….. 11

3.11

AIR/WATER heat pumps, 2 condenser fan circuits ………………………………………………………………………………………………….. 12

3.12

AIR/WATER heat pumps, two circuits, 1 condenser fan circuit ………………………………………………………………………………….. 12

3.13

WATER/WATER chillers, single circuit …………………………………………………………………………………………………………………… 13

3.14

WATER/WATER chillers, two circuits …………………………………………………………………………………………………………………….. 13

3.15

WATER/WATER chillers, two circuits, 2 evaporators ……………………………………………………………………………………………….. 14

3.16

WATER/WATER heat pumps with reversal on the refrigerant circuit, single circuit ……………………………………………………….. 14

3.17

WATER/WATER heat pumps with reversal on the refrigerant circuit, two circuits …………………………………………………………. 15

3.18

WATER/WATER heat pumps with reversal on the refrigerant circuit, two circuits, 1 evaporator ……………………………………… 15

3.19

WATER/WATER heat pumps with reversal on the water circuit, single circuit ……………………………………………………………… 16

3.20

WATER/WATER heat pumps with reversal on the water circuit, two circuits, H02= 1 and H21= 4 ………………………………….. 16

3.21

WATER/WATER heat pumps with reversal on the water circuit, two circuits, 1 evaporator H02= 1 and H21= 4 ……………….. 17

3.22

Air-cooled condensing unit without reverse cycle, single circuit …………………………………………………………………………………. 17

3.23

Air-cooled condensing unit without reverse cycle, two circuits …………………………………………………………………………………… 18

3.24

Reverse-cycle air-cooled condensing unit, single circuit …………………………………………………………………………………………… 18

3.25

Reverse-cycle air-cooled condensing unit, two circuits with condenser fan circuit ………………………………………………………… 19

3.26

Water-cooled condensing unit without reverse cycle, single circuit …………………………………………………………………………….. 19

3.27

Water-cooled condensing unit without reverse cycle, two circuits ………………………………………………………………………………. 20

3.28

Reverse-cycle water-cooled condensing unit, single circuit ……………………………………………………………………………………….. 20

3.29

Reverse-cycle water-cooled condensing unit, two circuits …………………………………………………………………………………………. 21

PARAMETERS …………………………………………………………………………………………………………………………………………………………. 22

4.1

Menu layout ……………………………………………………………………………………………………………………………………………………….. 22

4.2

List of parameters with the pLD user interface ………………………………………………………………………………………………………… 23

4.3

List of parameters with the pGD user interface ………………………………………………………………………………………………………… 25

CONNECTIONS ………………………………………………………………………………………………………………………………………………………… 41

DESCRIPTION OF THE MAIN FUNCTIONS …………………………………………………………………………………………………………………. 43

6.1

Control set point …………………………………………………………………………………………………………………………………………………. 43

6.2

Inlet-room temperature control ……………………………………………………………………………………………………………………………… 44

DESCRIPTION OF OPERATION …………………………………………………………………………………………………………………………………. 45

7.1

Outlet temperature control ……………………………………………………………………………………………………………………………………. 45

7.2

Differential Temperature Control …………………………………………………………………………………………………………………………… 47

7.3

Condensing unit control ……………………………………………………………………………………………………………………………………….. 47

7.4

Compressor rotation ……………………………………………………………………………………………………………………………………………. 49

7.5

TANDEM – TRIO compressor rotation …………………………………………………………………………………………………………………… 50

7.6

Compressor safety times ……………………………………………………………………………………………………………………………………… 50

7.7

Pumpdown management ……………………………………………………………………………………………………………………………………… 52

7.8

Main pump management ……………………………………………………………………………………………………………………………………… 53

7.9

Pump rotation …………………………………………………………………………………………………………………………………………………….. 53

7.10

Electric heaters …………………………………………………………………………………………………………………………………………………… 54

7.11

Selecting the operating mode ……………………………………………………………………………………………………………………………….. 55

7.12

ON/OFF time bands ……………………………………………………………………………………………………………………………………………. 55

7.13

Antifreeze control ………………………………………………………………………………………………………………………………………………… 56

7.14

Condenser — evaporator control …………………………………………………………………………………………………………………………….. 57

7.15

Prevent function ………………………………………………………………………………………………………………………………………………….. 59

7.16

Low noise function ………………………………………………………………………………………………………………………………………………. 59

7.17

Start with hot condenser ………………………………………………………………………………………………………………………………………. 59

7.18

Defrost control in air/water – Air/air units ………………………………………………………………………………………………………………… 60

7.19

Types of defrost ………………………………………………………………………………………………………………………………………………….. 60

7.20

Defrosting a circuit with time / temperature control …………………………………………………………………………………………………… 61

7.21

Defrosting a circuit with control from external contact ………………………………………………………………………………………………. 62

7.22

Manual defrost ……………………………………………………………………………………………………………………………………………………. 63

7.23

Defrost control ON REVERSE-CYCLE water/water units ………………………………………………………………………………………….. 63

7.24

Activating a defrost cycle ……………………………………………………………………………………………………………………………………… 63

7.25

Running a defrost ……………………………………………………………………………………………………………………………………………….. 63

7.26

Ending a defrost cycle …………………………………………………………………………………………………………………………………………. 63

MAP OF OUTPUTS …………………………………………………………………………………………………………………………………………………… 64

8.1

Air / air units……………………………………………………………………………………………………………………………………………………….. 64

8.2

Air / water units …………………………………………………………………………………………………………………………………………………… 66

8.3

Water / water units ………………………………………………………………………………………………………………………………………………. 68

8.4

Air-cooled condensing units …………………………………………………………………………………………………………………………………. 71

ALARMS ………………………………………………………………………………………………………………………………………………………………….. 73

9.1

Table of alarms …………………………………………………………………………………………………………………………………………………… 73

9.2

Type of alarm reset ……………………………………………………………………………………………………………………………………………… 75

9.3

Alarm log …………………………………………………………………………………………………………………………………………………………… 75

9.4

Flow switch alarm ……………………………………………………………………………………………………………………………………………….. 75

9.5

Circulating pump thermal overload alarm ……………………………………………………………………………………………………………….. 76

9.6

Condenser fan thermal overload alarm ………………………………………………………………………………………………………………….. 76

9.7

Antifreeze alarm …………………………………………………………………………………………………………………………………………………. 76

10.

CONNECTIONS, ACCESSORIES AND OPTIONS …………………………………………………………………………………………………….. 77

11.

CODES …………………………………………………………………………………………………………………………………………………………………. 77

12.

TECHNICAL SPECIFICATIONS ………………………………………………………………………………………………………………………………. 77

µC3

1. Introduction

1.1 General description

The µC³ is a new compact CAREL electronic controller, measuring the size of a normal thermostat, for the complete management of chillers and heat pumps: it can control air-air, air-water, water-water and condensing units.

Main functions

• Temperature control for air/air units, air/water-cooled chillers/heat pumps, with two circuits and up to 6 steps, with and without reversal on the water/refrigerant circuit;

• condenser control in two circuits with up to 6 steps on air/water-cooled units, with and without reversal on the water/refrigerant circuit;

• defrost management by time and/or by temperature or pressure;

• fan speed control;

• complete alarm management;

• time band management;

Advanced functions

• sliding defrost

• functions to prevent high condensing pressure/temperature, low evaporator pressure/temperature, antifreeze

• control

• management of tandem, trio and semi-hermetic compressors

• pump-down

• part-winding start

Driver functions

• Electronic expansion valve management.

Devices controlled

• Compressor;

• condenser fans;

• evaporator fan (air-source units)

• reversing valve;

• water pumps for the evaporator and/or condenser (water-source units);

• outlet fan (air-air);

• antifreeze heater;

• support heaters;

• alarm signal device;

Programming

CAREL offers the possibility to configure all the unit parameters not only from the keypad on the front panel, but also using a hardware key or via a serial line.

1.2 User interface

pLD large terminal

The display has 4 digits plus decimal point. In normal operation, the value shown on the display corresponds to the temperature read by the control probe, for example the evaporator water inlet temperature (on water chillers) or alternatively the room temperature, on direct expansion units.

Prg button: enters the parameters menu; if already in the menu goes back one level at a time until reaching the main screen

Amber LED

On = parameters menu

Off = other menu

Up button: enters the passwordprotected menu and scrolls the parameters

Amber LED

On = pump on

Off = pump off

Flashing = pump alarm

Heat button: enters the parameters menu; if already in the menu goes back one level at a time until reaching the main screen

Green LED

On = parameters menu

Off = other menu

Alarm button: displays the alarm menu

Red LED

On = alarm active

Off = no alarm

On/off button: switches the unit on/off

Red LED

On = unit on

Off = unit off

Sel button: selects the chosen parameter and confirms the changes

Green LED

On = main menu

Off = other menu

Cool button: activates HP mode

Green LED

On = HP mode

Off = chiller mode

Down button: enters the password-protected menu and scrolls the parameters

Green LED

On = compressors on

Off = compressors off

Flashing = compressor alarm

Fig. 1.a

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µC3

1.3 Programming procedure

1) press up or down

2) press Sel

3) enter the password using up or down

4) press Sel to confirm

If the password is correct, the parameters menu automatically appears; if the password is wrong, the value 0 is displayed.

Repeat the operation by repeating the procedure or press Prg to exit.

2. pGD0 terminal

The display covers 4 rows by 20 characters. In normal operation, the display shows the evaporator inlet and outlet temperatures, the unit status (ON/OFF) and the mode (cooling/heating).

The up and down buttons can be used to immediately enter in the user menu, set point, ON/OFF and COOLING/HEATING mode.

Entering the password in the screen following is possible enter in programming of all the parameters.

Alarm button: enters alarms menu with single-pressing;

Red LED

On = enable alarm

Off = disable alarm

Up button: enters the user menu and changes the selection

Prg button: enters the parameters menu

Amber LED

On = main menu

Off = other menu

Enter button: confirms the selection or the settings

Esc button: returns to the previous menu

Green LED: always on

Down button: enters the user menu and changes the selection

Fig. 1.b

2.1 Passwords and levels of access

The user interface has the parameters organised into three distinct levels of access, each of which containing a different number of visible parameters: free access: access to the screens displaying the inputs and outputs, unit on/off, set point, enter password to access the protected parameters. user level: (password 22), all the free access parameters plus the main control parameters, maintenance parameters, alarms. manufacturer level: (password 66), complete access to the unit configuration parameters, from the type of devices controlled to the definition of the control parameters.

The parameters are organised by uniform groups accessible from specific sliding menus.

The following diagram shows the method for accessing the various groups of parameters and their layout.

From inside a group of parameters, pressing [Esc] moves the cursor to the sliding menu for selecting the parameters, pressing [Prog] moves to the main menu.

2.2 Type of connectors

The connectors and the cables can be purchased separately from CAREL (MCH3CON**) or directly from the manufacturers, Molex and Phoenix. For the crimping of the contacts use the special

Molex tool code 69008-0724.

Mini-fit terminals

Number of connectors

Molex code of the connector Number of pins Molex code of the contact Cable cross-section allowed in AWG

Cable cross-section allowed in mm2

2 39-01-2140 14 39-00-0038

39-00-0046

AWG18 to 24

AWG22 to 28

1.00 to 0.21

0.5 to 0.10

1 39-01-2060 6

1 39-01-2080 8

1 39-01-2100 10

1 39-01-2100 10 39-00-0077

2 39-01-2120 12 39-00-0077

Plug-in terminals

Number of connectors Phoenix code of the connector Number of pins Cable cross-section allowed in AWG

AWG16

1.50

Cable cross-section allowed in mm2

1.00 to 0.21

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3. Applications

3.1 AIR/AIR units, single circuit

3.2 AIR/AIR units, two circuits

Fig. 3.a.a

µC3

+030220431 rel 1.6 16/11/2010

Fig. 3.a.b

3.3 AIR/AIR units, two circuits, 1 condenser fan circuit

Sonda mandata

Supply probe

B2 b

3.4 AIR/AIR heat pumps, single circuit

Fig. 3.a.c

Sonda manda

Supply probe

µC3

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Fig. 3.a.d

3.5 AIR/AIR heat pumps, two circuits

Sonda mandata

Supply probe

µC3

Fig. 3.a.e

3.6 AIR/AIR heat pumps, two circuits, 1 condenser fan circuit

Sonda mandata

Supply probe

B2 p

Fig. 3.a.f

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3.7 AIR/AIR chillers, single circuit

Fig. 3.a.g

3.8 AIR/AIR chillers, two circuits, 2 condenser fan circuits and 2 evaporators

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Fig. 3.a.h

µC3

3.9 AIR/WATER chillers, two circuits, 1 condenser fan circuit

µC3

Compressore 3

Compressor 3

Fig. 3.a.i

3.10 AIR/WATER heat pumps, single circuit

Fig. 3.a.l.

_Circ.2

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3.11 AIR/WATER heat pumps, 2 condenser fan circuits

µC3

Fig. 3.a.m.

3.12 AIR/WATER heat pumps, two circuits, 1 condenser fan circuit

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Fig. 3.a.n

3.13 WATER/WATER chillers, single circuit

µC3

Fig. 3.a.o.

3.14 WATER/WATER chillers, two circuits

+030220431 rel 1.6 16/11/2010

Fig. 3.a.p.

3.15 WATER/WATER chillers, two circuits, 2 evaporators

µC3

Fig. 3.a.q.

3.16 WATER/WATER heat pumps with reversal on the refrigerant circuit, single circuit

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_Circ.1

Fig. 3.a.r.

3.17 WATER/WATER heat pumps with reversal on the refrigerant circuit, two circuits

µC3

_Circ.1

_Circ.2

_Circ.1

_Circ.2

Fig. 3.a.s.

3.18 WATER/WATER heat pumps with reversal on the refrigerant circuit, two circuits, 1 evaporator

+030220431 rel 1.6 16/11/2010

Fig. 3.a.t.

3.19 WATER/WATER heat pumps with reversal on the water circuit, single circuit

µC3

Fig. 3.a.u.

3.20 WATER/WATER heat pumps with reversal on the water circuit, two circuits, H02= 1 and H21= 4

+030220431 rel 1.6 16/11/2010

Fig. 3.a.v.

cooling

µC3

3.21 WATER/WATER heat pumps with reversal on the water circuit, two circuits, 1 evaporator H02= 1 and H21= 4

Fig. 3.a.z.

3.22 Air-cooled condensing unit without reverse cycle, single circuit

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Fig. 3.b.a.

3.23 Air-cooled condensing unit without reverse cycle, two circuits

µC3

Fig. 3.b.b.

3.24 Reverse-cycle air-cooled condensing unit, single circuit

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Fig. 3.b.c.

3.25 Reverse-cycle air-cooled condensing unit, two circuits with condenser fan circuit

µC3

Fig. 3.b.d.

3.26 Water-cooled condensing unit without reverse cycle, single circuit

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Fig. 3.b.e.

3.27 Water-cooled condensing unit without reverse cycle, two circuits

Condenser

µC3

Fig. 3.b.f.

3.28 Reverse-cycle water-cooled condensing unit, single circuit

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Fig. 3.b.g.

3.29 Reverse-cycle water-cooled condensing unit, two circuits

µC3

Flussostato

Fluxswitch

Fig. 3.b.h.

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4. Parameters

4.1 Menu layout

µC3

Fig. 4.a

— / — Probe configuration

— A — Antifreeze

— B — Input – Output

— C — Compressors

— d — Defrost

— F — Condenser

— H — Unit configuration

— P — Alarm configuration

— r — Control parameters

F-r Software

— t — Clock

EVD Electronic valve driver

The various functions of the units are described below, with specific references to the parameters in the table according to the program menu codes.

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4.2 List of parameters with the pLD user interface

A10

A11

A12

pLD

/10

Extended description

/* parameters: probe settings

Calibration offset for analogue input B1

Calibration offset for analogue input B2

Calibration offset for analogue input B3

Calibration offset for analogue input B4

Calibration offset for analogue input B5

Calibration offset for analogue input B6

Calibration offset for analogue input B7

Calibration offset for analogue input B8

Calibration offset for analogue input B9

Calibration offset for analogue input B10

A* parameters: antifreeze

Antifreeze alarm set point (chiller units) low room temperature (air/air units)

Antifreeze alarm differential (chiller units)

Low room temperature (air/air units)

Antifreeze heater set point

Antifreeze heater differential

Support heater set point in cooling mode

Heater differential support in cooling mode

Support heater 1 set point in heating mode

Support heater 1 differential in heating mode

Support heater 2 set point in heating mode

Support heater 2 differential in heating mode

Support heater activation delay in heating

Device start-up mode in antifreeze with unit off

-9.9 to 9.9

Min/max limits

-99.9 to 99.9

15.0 to 50.0

0.0 to 10.0

15.0 to 50.0

0.0 to 10.0

0 to 60

DISABLED

HEAT & PUMP ON

HEAT & UNIT ON

HEATER ONLY ON

-99.9 to 99.9

B23

B24

B25

B26

B27

B28

B29

B30

B31

B15

B16

B17

B18

B19

B20

B21

B22

B10

B11

B12

B14

B40

B41

B42

B43

B44

B45

B32

B33

B34

B35

B36

B37

B38

B39 c9 c10 c11 c12 c13 c14 c5 c6 c7 c8 c1 c2 c3 c4

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b* parameters: sensors

Value of analogue input B1

Value of analogue input B2

Value of analogue input B3

Value of analogue input B4

Value of analogue input B5

Value of analogue input B6

Value of analogue input B7

Value of analogue input B8

Value of analogue input B9

Value of analogue input B10

Status of digital input 1

Status of digital input 2

Status of digital input 4

Status of digital input 5

Status of digital input 6

Status of digital input 7

Status of digital input 8

Status of digital input 9

Status of digital input 10

Status of digital input 11

Status of digital input 12

Status of digital input 13

Status of digital input 14

Status of digital input 15

Status of digital input 16

Status of digital input 17

Status of digital input 18

Status of digital output 1

Status of digital output 2

Status of digital output 3

Status of digital output 4

Status of digital output 5

Status of digital output 6

Status of digital output 7

Status of digital output 8

Status of digital output 9

Status of digital output 10

Status of digital output 11

Status of digital output 12

Status of digital output 13

Status of digital output 14

Status of analogue output 1

Status of analogue output 2

Status of analogue output 5

c* parameters: compressors

Condenser pump operating hours x 1000

Condenser pump operating hours

Evaporator pump / main fan operating hours x 1000

Evaporator pump / main fan operating hours

Evaporator pump 2 operating hours x 1000

Evaporator pump 2 operating hours

Compressor 1 operating hours circuit 1 x 1000

Compressor 1 operating hours circuit 1

Compressor 2 operating hours circuit 1 x 1000

Compressor 2 operating hours circuit 1

Compressor 3 operating hours circuit 1 x 1000

Compressor 3 operating hours circuit 1

Compressor 1 operating hours circuit 2 x 1000

Compressor 1 operating hours circuit 2

0.0

0 to 999

V h h h h h h h h h h h h h h

°C/bar

°C/bar bar bar

°C

%/°C

°C

°C min

°C

Unit of measure

°C/bar

°C/bar bar bar

°C

%/°C

°C

Default

3.0

1.0

5.0

1.0

30.0

1.0

25.0

5.0

24.0

5.0 user user user user user user user user

15 user

DISABLED user

Access

user user user user user user user user user user user user

direct

µC3

H5 d1 d2 d3 d4 d5 d6

pLD

c15 c16 c17 c18 c19 c20 c21 c22 c23 c24

Extended description

Compressor 2 operating hours circuit 2 x 1000

Compressor 2 operating hours circuit 2

Compressor 3 operating hours circuit 2 x 1000

Compressor 3 operating hours circuit 2

Manually force compressor 1 circuit 1

Manually force compressor 2 circuit 1

Manually force compressor 3 circuit 1

Manually force compressor 1 circuit 2

Manually force compressor 2 circuit 2

Manually force compressor 3 circuit 2

d* parameters: defrost

Start defrost threshold

End defrost threshold

Enable sliding defrost function

Minim. set point to start defrost accessible with sliding defrost function

Outside temperature threshold to start sliding defrost action

Outside temperature threshold for maximum sliding defrost action

F* parameters: fans

Start hour for low-noise operation

Start minutes for low-noise operation

End hour for low-noise operation

End minutes for low-noise operation

Low-noise set point in cooling

Low-noise set point in heating

H* parameters: unit configuration

Enable unit ON/OFF from digital input

Enable cooling/heating selection from digital input

Enable unit ON/OFF from supervisor

Enable cooling/heating selection from supervisor

Select type of serial protocol for supervisory network

H6 Serial port communication speed for supervisory network

F5 r13 r14 r15 r16 r9 r10 r11 r12 r17 r18 r5 r6 r7 r8 r1 r2 r3 r4

P4 t1 t2 t3 t4 t5

Serial identification number for supervisory network

P* parameters: alarms

Evaporator flow switch alarm delay at start-up

Evaporator flow switch alarm delay in steady operation

Condenser flow switch alarm delay at start-up

Condenser flow switch alarm delay in steady operation

r* parameters: control

Active set point

Current outside temperature compensation value (B7)

Current set point from analogue input B8

Cooling set point

Heating set point

Minimum set point value from probe B8 (cooling)

Maximum set point value from probe B8 (cooling)

Minimum set point value from probe B8 (heating)

Maximum set point value from probe B8 (heating)

Temperature control band

Enable set point compensation

Maximum compensation value

Minimum outside temperature for compensation in cooling

Maximum outside temperature for compensation in cooling

Minimum outside temperature for compensation in heating

Maximum outside temperature for compensation in heating

Outside temperature set point limit

Outside temperature differential limit

F-r* parameters: software

Software version, first digit

Software version, second digit

Software version day

Software version month

Software version year

t* parameters: clock setting

Hour setting

Minutes setting

Day setting

Month setting

Year setting

-99.9 to 99.9

0 to 99.9

N / Y

-99.9 to 99.9

-9.9 to 9.9

Min/max limits

0 to 999

N / Y

-99.9 to 99.9

N / Y

0.0 to 99.9

-99.9 to 99.9

0 to 23

0 to 59

0 to 23

0 to 59

0.0 to 99.9

N / Y

CAREL

MODBUS

LONWORKS

Rs232

MODEM ANALOGUE.

GSM MODEM

1200 (RS485/RS422)

2400 (RS485/RS422)

4800 (RS485/RS422)

9600 (RS485/RS422)

19200 (ONLY RS485)

0 to 200

0 to 999

0 to 23

0 to 59

1 to 31

1 to 12

0 to 99 h min day month year s s s s

°C

°C/bar

°C

°C h min h min

°C/bar

°C/bar h h h h

Unit of measure Default Access

µC3

N user

0.0

2.0

12.0 user user

N user

0.5 user

0.0

0.0 user user

N user

CAREL user user user user user user user

19200 (ONLY RS485) user

direct direct

12.0

45.0

7.0

17.0

40.0 direct direct direct direct direct

50.0

3.0 user

N user

5.0

25.0 user user

35.0

10.0

0.0

-10.0

2.0 user user user user user

direct user user user user user

+030220431 rel 1.6 16/11/2010 24

On/Off unit

Running mode

Insert password

Current language:

ENGLISH press [ ] for change

Probe offset B1:

Probe offset B2:

Probe offset B3:

Probe offset B4:

Probe offset B5:

Probe offset B6:

Probe offset B7:

Probe offset B8:

Probe offset B9:

Probe offset B10:

Enable probe

B1: Tank temp.

B1: T.condens.1

B1: P.evapor.1

B1: T.in.cond

Enable probe

B2: Not used

B2: T.condens.2

B2: P.evapor.2

B2: T.out.cond

Enable probe

B3: P.condens.1

Enable probe

B4: P.condens.2

Enable probe

B5: Room temp.

B5: T.in.evap

B5: Not used

Enable probe

B6: T.out.air

B6: T.out.water

B6: Not used

Enable probe

B7: External temp.

Enable probe

B8: External set

B8: Ext.contr.

Enable probe

B9: T.out.ev.1

B9: Not used

Enable probe

B10: T.out.ev.2

B10: Not used

B1 probe config.

Min.value

4.3 List of parameters with the pGD user interface

Menu description Extended description Min/max limits

In. air t.

In. evap.t.

In. cond.t.

In. diff.t.

Ext.control

Ambient air temperature (air/air units)

Evaporator water inlet temperature

Condenser water inlet temperature (water/water units)

Differential between evaporator inlet temperature and outside temperature

Air outlet temperature (air/air units)

Evaporator water outlet temperature

Condenser water outlet temperature (water/water units)

Differential between evaporator outlet temperature and outside temperature

External temp. control request percentage (condensing units)

Unit of measure

Default

h m

Access

°C

Active operating mode (chiller/heat pump)

Unit ON/OFF from panel

Cooling/Heating from panel

User / Manufacturer access password

Select pGD user interface language

Calibration offset for analogue input B1

Calibration offset for analogue input B2

Calibration offset for analogue input B3

Calibration offset for analogue input B4

Calibration offset for analogue input B5

Calibration offset for analogue input B6

Calibration offset for analogue input B7

Calibration offset for analogue input B8

Calibration offset for analogue input B9

Calibration offset for analogue input B10

Enable analogue input B1

Boiler temperature

Condensing temperature 1

Evaporation pressure 1

Condenser inlet temperature (water/water units)

Enable analogue input B2

Condensing temperature 2

Evaporation pressure 2

Condenser outlet temperature (water/water units)

Enable analogue input B3

Condensing pressure 1

Enable analogue input B4

Condensing pressure 2

Enable analogue input B5

Room temperature (air/air units)

Evaporator water inlet temperature (chiller units)

Enable analogue input B6

Evaporator air outlet temperature

Evaporator water outlet temperature

Enable analogue input B7

Outside air temperature

Enable analogue input B8

External set point

External control unit (condensing units)

Enable analogue input B9

Evaporator 1 outlet temperature

Enable analogue input B10

Evaporator 2 outlet temperature

Minimum end scale configuration for analogue input B1

ITALIANO

ENGLISH

ESPAÑOL

-9.9 to 9.9

UNIT ON

OFF FROM ALARM

OFF FROM SUPERV.

OFF FROM BANDS

OFF FROM DIG.IN.

OFF FROM BUTTON

ANTIFREEZE PROBE

P/LOAD PREVENT HP

DEFROST CIRC.1

DEFROST CIRC.2

UNIT OFF

UNIT ON

COOLING

HEATING

0 to 9999

N / Y

-30.0 to 150.0

ENGLISH

°C/bar

°C/bar bar bar

°C

%/°C

°C

°C bar

-0.5 user user user user user user user user user user manufacturer DIG 13 manufacturer DIG 14 manufacturer

Ana/I nt/Di g

INT

DIG 46

Supervisor address

51 manufacturer DIG 11 manufacturer DIG 12 manufacturer DIG 15 manufacturer DIG 16 manufacturer DIG 17 manufacturer DIG 18 manufacturer DIG 19 manufacturer DIG 20

µC3

R /

R-W

+030220431 rel 1.6 16/11/2010 25

Reciprocating comp.

Maximum time

PW time

Pump down config.

End from:

End set:

Unload enabled

Type:

Hour meter

Main pump

Main fan

Hour meter

Main pump

Main fan

Hour meter

Main pump 2

Hour meter

Main pump 2

Hour meter

Comp.1 circ.1

Hour meter

Comp.1 circ.1

Hour meter

Comp.2 circ.1

Hour meter

Comp.2 circ.1

Hour meter

Comp.3 circ.1

Hour meter

Comp.3 circ.1

Hour meter

Comp.1 circ.2

Hour meter

Comp.1 circ.2

Hour meter

Comp.2 circ.2

Hour meter

Comp.2 circ.2

Hour meter

Comp.3 circ.2

Unload time

Compressors min. time ON

Compressors min. time OFF

Time between diff. comp.starts

Time between same comp.starts

Min.time between pump/fan and compressors starting

Delay

OFF main pump/fan

Hour meter

Cond.pump

Hour meter

Cond.pump

Menu description

B1 probe config.

Max.value

B2 probe config.

Min.value

B2 probe config.

Max.value

B3 probe config.

Min.value

B3 probe config.

Max.value

B4 probe config.

Min.value

B4 probe config.

Max.value

B8 probe config.

Min.value

B8 probe config.

Max.value

Analog inputs 1 & 2 configuration

Extended description

Maximum end scale configuration for analogue input B1

Minimum end scale configuration for analogue input B2

Maximum end scale configuration for analogue input B2

Minimum end scale configuration for analogue input B3

Maximum end scale configuration for analogue input B3

Minimum end scale configuration for analogue input B4

Maximum end scale configuration for analogue input B4

Minimum end scale configuration for analogue input B8

Maximum end scale configuration for analogue input B8

Configuration of analogue inputs B1 and B2

Type of semi-hermetic compressors controlled

Maximum pumpdown duration

Part-winding time

Select end pumpdown mode

End pumpdown pressure (from low pressure transducer)

Enable compressor capacity control

Configure compressor capacity-control relay operating logic

Compressor capacity control deactivation delay

Minimum compressor on time

Minimum compressor off time

Minimum time between starts of different compressors

Minimum time between starts of the same compressor

Delay between start of pump/main fan and compressors

Delay for stopping the pump/main fan

Condenser pump operating hours x 1000

Condenser pump operating hours

Evaporator pump / main fan operating hours x 1000

Evaporator pump / main fan operating hours

Evaporator pump 2 operating hours x 1000

Evaporator pump 2 operating hours

Compressor 1 operating hours circuit 1 x 1000

Compressor 1 operating hours circuit 1

Compressor 2 operating hours circuit 1 x 1000

Compressor 2 operating hours circuit 1

Compressor 3 operating hours circuit 1 x 1000

Compressor 3 operating hours circuit 1

Compressor 1 operating hours circuit 2 x 1000

Compressor 1 operating hours circuit 2

Compressor 2 operating hours circuit 2 x 1000

Compressor 2 operating hours circuit 2

Compressor 3 operating hours circuit 2 x 1000

+030220431 rel 1.6 16/11/2010

0 to 999

26 h h h h h h h h h h h h h h s h h h

Min/max limits

0.0 to 150.0

-30.0 to 150.0

0.0 to 150.0

-30.0 to 150.0

0.0 to 150.0

-30.0 to 150.0

0.0 to 150.0

-30.0 to 150.0

0.0 to 150.0

BOILER TEMP.

CONDENSE TEMP.

EVAP. PRESS.

PART LOAD ONLY

WITH PUMP DOWN

WITH PARTWINDING

1 to 999

PRESS. SWITCH

PRESSURE PROBE

-99.9 to 99.9

N / Y

N.C.

N.O.

1 to 999

0 to 9999

0 to 999 s s s s s s

%/°C s ms bar bar bar bar bar

Unit of measure

bar 7.0

Default

bar -0.5 bar 7.0

0.0

30.0

0.0

30.0

%/°C 0.0 manufacturer

Access

manufacturer

Ana/I nt/Di g

Supervisor address

manufacturer manufacturer

µC3

R /

R-W

manufacturer manufacturer manufacturer manufacturer

100.0

BOILER

TEMPERA

TURE

PART

LOAD

ONLY.

PRESS.

SWITCH

0.0

N manufacturer manufacturer INT 1 manufacturer manufacturer INT manufacturer INT

3 user user ANA 3 manufacturer

360

450

5 manufacturer INT manufacturer INT manufacturer INT manufacturer INT manufacturer INT

8 manufacturer INT 107

5 manufacturer INT 108

INT

INT 59

INT

Menu description

Hour meter

Comp.3 circ.2

Pump/Fan hour meter

Threshold

Reset

Pump 2 hour meter

Threshold

Reset

Comp.3 circ.1 hour meter

Threshold

Reset

Comp.1 circ.2 hour meter

Threshold

Reset

Comp.2 circ.2 hour meter

Threshold

Reset

Comp.3 circ.2 hour meter

Threshold

Reset

Rotation time with tandem/trio compressors:

Compressors enabled

C1/1

Compressors enabled

C2/1

Compressors enabled

C3/1

Compressors enabled

C1/2

Compressors enabled

C2/2

Compressors enabled

C3/2

1-2 analog inputs:

Tank temp.

T.condens.1

P.evapor.1

T.in.cond

Condenser pump hour meter

Threshold

Reset

Comp.1 circ.1 hour meter

Threshold

Reset

Comp.2 circ.1 hour meter

Threshold

Enable operation of compressor 1 circuit 1

Enable operation of compressor 2 circuit 1

Enable operation of compressor 3 circuit 1

Enable operation of compressor 1 circuit 2

Enable operation of compressor 2 circuit 2

Enable operation of compressor 3 circuit 2

Value of analogue input B1

Boiler temperature

Condensing temperature 1

Evaporation pressure 1

Condenser inlet temperature (water/water units)

Extended description

Compressor 3 operating hours circuit 2

Pump/main fan operating hour threshold alarm x 1000

Reset pump/main fan operating hours

Evaporator pump / main fan operating hours x 1000

Evaporator main pump fan operating hours

Pump 2 operating hour threshold alarm x 1000

Reset pump 2 operating hours

Evaporator pump 2 operating hours x 1000

Evaporator pump 2 operating hours

Condenser pump operating hour threshold alarm x 1000

Reset condenser pump operating hours

Condenser pump operating hours x 1000

Condenser pump operating hours

Operating hour threshold alarm, compressor 1 circuit 1 x 1000

Reset compressor 1 operating hours circuit 1

Compressor 1 operating hours circuit 1 x 1000

Compressor 1 operating hours circuit 1

Operating hour threshold alarm, compressor 2 circuit 1 x 1000

Reset compressor 2 operating hours circuit 1

Compressor 2 operating hours circuit 1 x 1000

Compressor 2 operating hours circuit 1

Operating hour threshold alarm, compressor 3 circuit 1 x 1000

Reset compressor 3 operating hours circuit 1

Compressor 3 operating hours circuit 1 x 1000

Compressor 3 operating hours circuit 1

Operating hour threshold alarm, compressor 1 circuit 2 x 1000

Reset compressor 1 operating hours circuit 2

Compressor 1 operating hours circuit 2 x 1000

Compressor 1 operating hours circuit 2

Operating hour threshold alarm, compressor 2 circuit 2 x 1000

Reset compressor 2 operating hours circuit 2

Compressor 2 operating hours circuit 2 x 1000

Compressor 2 operating hours circuit 2

Operating hour threshold alarm, compressor 3 circuit 2 x 1000

Reset compressor 3 operating hours circuit 2

Compressor 3 operating hours circuit 2 x 1000

Compressor 3 operating hours circuit 2

Tandem/trio compressor rotation delay in part load operation

+030220431 rel 1.6 16/11/2010

N / Y

Min/max limits

0 to 999

0 to 1

0 to 999

0 to 1

0 to 999

0 to 1

0 to 999

0 to 1

0 to 999

0 to 1

0 to 999

0 to 1

0 to 999

0 to 1

0 to 999

0 to 1

0 to 999

0 to 1

0 to 999

1 to 180

Unit of measure

Default

Access

h h h h h h h h h h h h h h h h h h h h h h h h h h h min

20 user user user user user user user user user user user user user user user user user user user user user user user user user user user user user user user user user user user user user

Ana/I nt/Di g

INT

Supervisor address

INT

µC3

R /

R-W

Y user user user user user user

DIG 5

DIG 6

DIG 7

DIG 8

DIG 9

DIG 10

-99.9 to 99.9

°C/bar ANA 43 R

Menu description

5-6 analog inputs:

T.out air

T.out.evap.

Not used

7-8 analog inputs:

Ext.temp.

7-8 analog inputs:

External set

Ext.contr.

9-10 analog inputs:

T.out.ev.1

Not used

9-10 analog inputs:

T.out.ev.2

Not used

1-2 analog inputs:

Not used

T.condens.2

P.evapor.2

T.out.cond

3-4 analog inputs:

P.condens.1

3-4 analog inputs:

P.condens.2

5-6 analog inputs:

Room temp.

T.in.evap.

Not used

1-3 dig.inputs:

Serious alarm

Remote On/Off

1-3 dig.inputs:

Air flow state

Evap.flow state

Control step 1

Not used

1-3 dig.inputs:

Remote On/Off

Control step 2

4-6 dig.inputs:

Overload main fan

Overload ev.pump

Not used

4-6 dig.inputs:

Pressost.L.press.1

4-6 dig.inputs:

Pressost.H.press.1

7-9 dig.inputs:

Over.comp.1 circ.1

7-9 dig.inputs:

Over.comp.2 circ.1

7-9 dig.inputs:

Overl.fan 1 Circ.1

Overload cond.pump

10-12 dig.inputs:

Pressost.L.press.2

10-12 dig.inputs:

Pressost.H.press.2

10-12 dig.inputs:

Over.comp.1 circ.2

13-15 dig.inputs:

Over.comp.2 circ.2

13-15 dig.inputs:

Overl.fan 2 Circ.1

Overl.fan 1 Circ.2

Cond. flow state

13-15 dig.inputs:

Not used

Summer/Winter

16-18 dig.inputs:

Not used

Overl.fan 2 Circ.1

Over.comp.3 circ.1

16-18 dig.inputs:

Not used

Overl.fan 2 Circ.2

Over.comp.3 circ.2

Extended description

Value of analogue input B2

Condensing temperature 2

Evaporation pressure 2

Condenser outlet temperature (water/water units)

Value of analogue input B3

Condensing pressure 1

Value of analogue input B4

Condensing pressure 2

Value of analogue input B5

Room temperature (air/air units)

Evaporator water inlet temperature

Value of analogue input B6

Air outlet temperature (air/air units)

Evaporator water outlet temperature

Value of analogue input B7

Outside air temperature

Value of analogue input B8

External set point

External control value (condensing units)

Value of analogue input B9

Evaporator 1 water outlet temperature

Min/max limits

-99.9 to 99.9

Value of analogue input B10

Evaporator 2 water outlet temperature

Status of digital input 1

Serious alarm from digital input

ON/OFF from digital input (condensing units with control from digital inputs)

Status of digital input 2

Air flow switch (air/air units)

Evaporator water flow switch

Condensing unit digital control 1

Status of digital input 3

Remote On/Off

Condensing unit digital control 2

Status of digital input 4

Main fan thermal overload

Evaporator pump 1 thermal overload

Condensing unit digital control 3

Status of digital input 5

Low pressure switch circuit 1

Status of digital input 6

High pressure switch circuit 1

Status of digital input 7

Compressor 1 thermal overload circuit 1

Status of digital input 8

Compressor 2 thermal overload circuit 1

Status of digital input 9

Condenser fan 1 thermal overload circuit 1

Condenser pump thermal overload

Status of digital input 10

Low pressure switch circuit 2

Status of digital input 11

High pressure switch circuit 2

Status of digital input 12

Compressor 1 thermal overload circuit 2

Status of digital input 13

Compressor 2 thermal overload circuit 2

Status of digital input 14

Condenser fan 2 thermal overload circuit 1 (1 condenser)

Condenser fan 1 thermal overload circuit 2 (2 condensers)

Condenser water flow switch(water/water units)

Status of digital input 15

Select cooling/heating from digital input

Status of digital input 16

Condenser fan 2 thermal overload circuit 1 (2 condensers, 4 fans)

Compressor 3 thermal overload circuit 1 (units with trio compressors)

Status of digital input 17

Condenser fan 2 thermal overload circuit 2 (2 condensers, 4 fans)

Compressor 3 thermal overload circuit 2 (units with trio compressors)

-99.9 to 99.9

+030220431 rel 1.6 16/11/2010 28

Unit of measure

Default

Access

Ana/I nt/Di g

Supervisor address

µC3

R /

R-W

°C/bar bar bar

°C

%/°C

°C

ANA 44

ANA 45

ANA 46

ANA 47

ANA 48

ANA 49

ANA 50

ANA 51

ANA 52

Menu description

16-18 dig.inputs:

Not used

Overload pump 2

Control step 4

1-3 dig.outputs:

Comp.1 circ.1

Winding A comp.1

1-3 dig.outputs:

Comp.2 circ.1

Unload comp.1

Winding B comp.1

1-3 dig.outputs:

Not used

Cond.fan 2 circ.1

Comp.3 circ.1

Solenoid circ.1

Unload comp.1

4-6 dig.outputs:

Cond.fan 1 circ.1

Not used

Defrost res.circ.1

4-6 dig.outputs:

Main fan

Evaporator pump

Not used

4-6 dig.outputs:

Comp.1 circ.2

Winding A comp.2

7-9 dig.outputs:

Comp.2 circ.2

Unload comp.2

Winding B comp.2

7-9 dig.outputs:

Not used

Evaporator pump 2

Cond.fan 2 circ.2

Comp.3 circ.2

Solenoid circ.2

Unload comp.2

7-9 dig.outputs:

Cond.fan 2 circ.1

Cond.fan 1 circ.2

Not used

Defrost res.circ.2

10-12 dig.outputs:

General alarm

10-12 dig.outputs:

Antifreeze heater1

Not used

10-12 dig.outputs:

Antifreeze heater2

Not used

13-14 dig.outputs:

Not used

Valve 4way circ.1

Water inv.valve

13-14 dig.outputs:

Not used

Valve 4way circ.2

Condenser pump

Analog outputs:

Fan circuit 1

Analog outputs:

Fan circuit 2

Analog outputs:

Evap.pump 2

Driver1 mode:

EEV Mode

EEV Position

Power request

Driver2 mode:

Extended description

Status of digital input 18

Evaporator pump 2 thermal overload

Condensing unit digital control 4

Status of digital output 1

Compressor 1 circuit 1

Winding A compressor 1

Status of digital output 2

Compressor 2 circuit 1

Compressor 1 capacity control

Winding B compressor 1

Status of digital output 3

Fan 2 circuit 1

Compressor 3 circuit 1

Liquid solenoid circuit 1

Compressor 1 capacity control (if Part-Winding enabled)

Status of digital output 4

Fan 1 circuit 1

Defrost heater circuit 1

Status of digital output 5

Main fan (air/air units)

Evaporator pump 1

Status of digital output 6

Compressor 1 circuit 2

Winding A compressor 2

Status of digital output 7

Compressor 2 circuit 2

Compressor 2 capacity control

Winding B compressor 2

Status of digital output 8

Evaporator pump 2

Fan 2 circuit 2

Compressor 3 circuit 2

Liquid solenoid circuit 2

Compressor 2 capacity control (if Part-Winding enabled)

Status of digital output 9

Fan 2 circuit 1 (single condenser)

Fan 1 circuit 2 (2 condensers)

Defrost heater circuit 2

Status of digital output 10

Generic alarm

Status of digital output 11

Heater 1

Status of digital output 12

Heater 2

Status of digital output 13

4-way valve for reversing the refrigerant circuit in circuit 1

4-way valve for reversing the water circuit (water/water units)

Status of digital output 14

4-way valve for reversing the refrigerant circuit in circuit 2

Condenser pump (water/water units)

Status of analogue output 1

Condenser fans circuit 1

Status of analogue output 2

Condenser fans circuit 2

Status of analogue output 5

Evaporator pump 2

Active operating mode circuit 1

Activate manual control, driver 1 (reading)

Read position of valve 1

Read capacity request for driver 1

Active operating mode circuit 1

EEV Mode

EEV Position

Power request

Driver3 mode:

Activate manual control, driver 2 (reading)

Read position of valve 2

Read capacity request for driver 2

Active operating mode circuit 2

EEV Mode

EEV Position

Power request

Activate manual control, driver 3 (reading)

Read position of valve 3

Read capacity request for driver 3

+030220431 rel 1.6 16/11/2010

Min/max limits

Unit of measure

Default

Access

Ana/I nt/Di g

Supervisor address

µC3

R /

R-W

COOLING

HEATING

DEFROST

0 to 1

0 to 9999

0 to 100

COOLING

HEATING

DEFROST

0 to 1

0 to 9999

0 to 100

COOLING

HEATING

DEFROST

0 to 1

0 to 9999

0 to 100

DIG 160

INT 97

INT 101

DIG 161

INT 98

INT 102

DIG 162

INT 99

INT 103

Menu description

Driver4 mode:

Extended description

Active operating mode circuit 2

EEV Mode

EEV Position

Power request

Driver 1

Activate manual control, driver 4 (reading)

Read position of valve 4

Read capacity request for driver 4

Type of gas used

SuperHeat SuperHeat

Satured Temp. Saturation temperature measured by driver 1

Suction Temp.

Driver 2

Suction temperature measured by driver 1

Display type of gas used in the refrigerant circuit

Satured Temp.

Suction Temp.

Driver 3

Satured Temp.

Suction Temp.

Driver 4

Satured Temp.

Suction Temp.

Driver 1

Saturation temperature measured by driver 2

Suction temperature measured by driver 2

Display type of gas used in the refrigerant circuit

Saturation temperature measured by driver 3

Suction temperature measured by driver 3

Display type of gas used in the refrigerant circuit

Saturation temperature measured by driver 4

Suction temperature measured by driver 4

Display type of gas used in the refrigerant circuit

Evap.press. Evaporation pressure measured by driver 1

Cond.temp. Condensing

Driver 2 Display type of gas used in the refrigerant circuit

Evap.press. Evaporation pressure measured by driver 2

Driver 3

Evap.press.

Display type of gas used in the refrigerant circuit

Evaporation pressure measured by driver 3

Driver 4 Display type of gas used in the refrigerant circuit

Evap.press. Evaporation pressure measured by driver 4 temperature measured by driver 4

EVD1 version

EVD2 version

EVD3 version

EVD4 version

Antifreeze

Low room temperature alarm Setpoint

Antifreeze

Low room temperature alarm Diff.

Antifreeze alrm

Low room temperature setpoint limits

Low

Antifreeze alrm

Low room temperature setpoint limits High

Antifreeze alarm

Reset

Antifreeze alarm

Delay

Firmware version H driver 1

Firmware version L driver 1

Firmware version H driver 2

Firmware version L driver 2

Firmware version H driver 3

Firmware version L driver 3

Firmware version H driver 4

Firmware version L driver 4

Antifreeze alarm set point (chiller units) low room temperature (air/air units)

Antifreeze alarm differential (chiller units)

Low room temperature (air/air units)

Minimum set point limit antifreeze/low room temperature

Maximum set point limit antifreeze/low room temperature

Type of antifreeze alarm reset

Antifreeze alarm delay when starting (manual reset)

+030220431 rel 1.6 16/11/2010

Min/max limits

COOLING

HEATING

DEFROST

0 to 1

0 to 9999

0 to 100

None

R22

R134a

R404a

R407c

R410a

R507c

R290

R600

R600a

R717

R744

-999.9 to 999.9

See Driver 1

-999.9 to 999.9

See Driver 1

-999.9 to 999.9

See Driver 1

-999.9 to 999.9

None

R22

R134a

R404a

R407c

R410a

R507c

R290

R600

R600a

R717

R744

-99.9 to 99.9

See Driver 1

-99.9 to 99.9

See Driver 1

-99.9 to 99.9

See Driver 1

-99.9 to 99.9

0 to 999

-99.9 to 99.9

Unit of measure

Default

°C

DIG 163 RW

INT 100 R

% INT 104

INT

81 RW barg

°C

°C barg

°C

°C barg

°C

°C barg

°C

3.0

1.0

0.0 user

Access

Ana/I nt/Di g

Supervisor address

µC3

R /

R-W

user manufacturer

ANA

INT

ANA

ANA 61

ANA 65

ANA 69

INT 81

ANA 62

ANA 66

ANA 70

INT 81

ANA 63

ANA 67

ANA 71

ANA 64

ANA 72

ANA 76

INT 81

ANA 65

ANA 73

ANA 77

INT 81

ANA 66

ANA 74

ANA 78

INT 81

ANA 67

ANA 75

ANA 79

ANA 13

-99.9 to 99.9

MANUAL

AUTOMATIC

0 to 540

°C 12.0 min 0 manufacturer user INT 9 RW

Menu description

Antifreeze heaters Setpont

Antifreeze heaters Diff.

Auxiliary heater in cooling mode Setpoint

Auxiliary heater in cooling mode Diff.

Auxiliary heater in heating mode Setpoint

Auxiliary heater in heating mode Diff.

Auxiliary heater in heating mode (2)

Setpoint

Auxiliary heater in heating mode (2) Diff.

Aux.heater HP mode enable by tank Setpoint

Aux.heater HP mode enable by tank Diff.

Aux.heater HP mode enable by ext.temp.

Setpoint

Aux.heater HP mode enable by ext.temp. Diff.

Auxiliary heater activation delay on heating mode

Antifreeze

Probe:

Automatic turn ON in antifreeze

Defrost config.

Start/End:

Extended description

Antifreeze heater set point

Antifreeze heater differential

Support heater set point in cooling mode

Heater differential support in cooling mode

Support heater 1 set point in heating mode

Support heater 1 differential in heating mode

Support heater 2 set point in heating mode

Support heater 2 differential in heating mode

Boiler temperature set point to enable support heater

Boiler temperature differential to enable support heater

Outside air set point to enable support heater

Outside air differential to enable support heater

Support heater 2 differential in heating mode

Select probe for cooling support control in air/air units

Device start-up mode in antifreeze with unit off

Select values for the start and end defrost control

Defrost config.

Type:

Defrost end by threshold

Defrost Delay

Defrost Start

Defrost End

Defrost Max.time

Defrost Min.time

Delay between defrost same circuit

Delay between defrost differ.circ.

Defrost

Compressor force

OFF on start/end defrost

Defrost

Reversal cycle delay

Sliding defrost

Enable:

Sliding defrost

Defrost start min.

Set point

Sliding defrost

External temperature

Start

Sliding defrost

External temperature

End

Manual defrost

Circuit 1:

Circuit 2:

Transducer high pressure alarm

Se tpoint

Transducer high pressure alarm

Diff.

Type of defrost between circuits

Select end defrost mode

Defrost activation delay

Start defrost threshold

End defrost threshold

Maximum defrost duration

Minimum defrost duration

Delay between defrosts in the same circuit

Delay between defrosts in different circuits

Forced compressor off time at start and end defrost

Delay in reversing refrigerating cycle for defrost

Enable sliding defrost function

Minimum set point to start defrost accessible with sliding defrost function

Outside temperature threshold to start sliding defrost action

Outside temperature threshold for maximum sliding defrost action

Enable manual defrost operation

Request forced defrost in circuit 1

Request forced defrost in circuit 2

High pressure alarm set point from transducer

High pressure alarm differential from transducer

+030220431 rel 1.6 16/11/2010

0 to 999

N / Y

0.0 to 99.9

-99.9 to 99.9

DISABLED

ENABLED

OFF

START

OFF

START

0 to 99.9

Min/max limits

-99.9 to 99.9

15.0 to 50.0

0.0 to 10.0

15.0 to 50.0

0.0 to 10.0

-3.0 to 50.0

0.0 to 10.0

-30.0 to 30.0

0.0 to 10.0

0 to 60

Unit of measure

Default

5.0

1.0

30.0

1.0

25.0

5.0

24.0 user user user user

Access

user user user

Ana/I nt/Di g

Supervisor

ANA 15

address

ANA 16

ANA 17

ANA 18

ANA 19

ANA 20

ANA 21

µC3

R /

R-W

°C

°C min

5.0

10.0

2.0

-7.0

2.0

15 user user user user user user

ANA

INT

OUTLET TEMP.

ROOM TEMP.

DISABLED

ON RES.& PUMP

ON RES.& UNIT

ONLY RESISTANCE ON

TEMPERATURE

PRESSURE

EXTERNAL CONTACT

PRESSURE/TEMP.

SIMULTANEOUS

SEPARATE

TIME

TEMP/PRESSURE

1 to 32000

-99.0 to 99.9

0 to 32000

OUTLET

TEMP. user

DISABLED user INT RW

TEMPERA s

°C/bar

°C/bar s s s

TURE

SIMULTAN

EOUS

1800

2.0

12.0

300

0 user INT user

TIME user user user user user user user

INT

ANA

INT

RW user INT 17 0 to 32000

0 to 999 s s

60 manufacturer INT 18

°C

°C s 30

°C/bar

0.5

0.0

0.0 bar bar

21.0

2.0 manufacturer INT 19 user user ANA 23 user user manufacturer ANA 24 manufacturer ANA 25

Menu description

Evaporator flow alarm

Regime delay

Condenser flow alarm

Start delay

Condenser flow alarm

Regime delay

Automatic alarms reset

Events n.

Automatic alarms reset

Time

Alarms reset selection

Comp.overload

Alarms reset selection

Fans overload

Alarms reset selection

Low pressure

Alarms reset selection

High pressure

Configuration

Low pressure alarm

Summer set

Low pressure alarm

Winter set

Low pressure alarm

Defrost set

LP delay switch-on

Summer

LP delay switch-on

Winter

LP delay switch-on

Defrost

Low pressure alarm

Regime delay

Low pressure alarm

Diff.

Evaporator flow alarm

Start delay

Inv.selection:

Comp./circuits number:

Rotation

Extended description

Low pressure alarm set point from transducer (cooling)

Low pressure alarm set point from transducer (heating)

Low pressure alarm set point from transducer (defrost)

Low pressure alarm delay when starting the compressors (cooling)

Low pressure alarm delay when starting the compressors (heating)

Low pressure delay when starting the compressors (defrost)

Low pressure alarm delay in steady operation

Low pressure alarm differential from transducer

Evaporator flow switch alarm delay at start-up

Evaporator flow switch alarm delay in steady operation

Condenser flow switch alarm delay at start-up

Condenser flow switch alarm delay in steady operation

Number of alarm events to switch from automatic to manual reset

Period of repeated alarm events to switch from automatic to manual reset

Select type of compressor thermal overload alarm reset

1 to 99

0 to 1

Select type of fan thermal overload alarm reset

Select type of low pressure alarm reset

Select type of high pressure alarm reset

Evaporator number:

Remote compressor control management

Type

EVD400 drivers number:

Reversal cycle valve logic

Pumps number:

Rotation type

Select number of evaporators

Select type of condensing unit control from analogue input

Number of EVD400 drivers connected

4-way valve operating logic for the reversal of the refrigerant/water circuit

Number of evaporator pumps

Select type of evaporator pump rotation

+030220431 rel 1.6 16/11/2010

Min/max limits

0 to 99.9

0 to 999

0 to 99.9

0 to 999

0 to 4

0 to 1

0 to 4

N.C.

N.O.

1 to 2

STARTS

TIME

32 s s s s

Unit of measure

bar

Default

2.0 bar bar

0.5

1.0

0.0 user user user user

Ana/I

Access

manufacturer

nt/Di g

Supervisor address

manufacturer manufacturer

INT

µC3

R /

R-W

bar s s s s min

2.0

1 user user user user user user user user user user user

INT 24

INT 25

INT 26

INT 27

INT 28

INT 29

Configure type of unit

Type of condensing unit control

Select type of reverse cycle for water/water units

Total number of compressors / number of refrigerant circuits on unit

Select type of compressor / refrigerant circuit rotation

AIR/AIR CHILLER

AIR/AIR CHILLER+HEAT

WATER/AIR CHILLER

WATER/AIR

CHILLER+HEAT P.

WATER/WATER CHILLER

WATER/WATER

CHILLER+HEAT P.

WATER/AIR

CONDENSING

WATER/AIR

CONDENSING+HEAT P.

ANALOGUE CONTROL

DIGITAL CONTROL

AIR/AIR

CHILLER manufacturer

ANALOGU

E manufacturer

CONTROL manufacturer WATER

GAS

1/1

2/1

3/1

2/2

4/2

6/2

L.I.F.O.

F.I.F.O.

TIME

STEPS

PROPORTIONAL

1 manufacturer

RW manufacturer INT 31 RW manufacturer RW manufacturer

Menu description

Pumps/Fan running mode

Extended description

Evaporator pump/main fan operating mode

Condenser pump running mode

Pumps/Fan burst running

Time ON:

Pumps/Fan burst running

Time OFF:

Pump rotation every (hours):

Enable on/off by digital input

Enable sum/win by digital input

Enable on/off by supervisor

Enable sum/win by supervisor

Auto revers.running mode delay

(summer/winter)

Supervisor protocol type

Condenser pump operating mode

ON time in burst operation

OFF time in burst operation

Operating hour threshold for the rotation of the evaporator pumps

Enable unit ON/OFF from digital input

Enable cooling/heating selection from digital input

Enable unit ON/OFF from supervisor

Enable cooling/heating selection from supervisor

Force-off time device for change working mode (CH-HP)

Select type of serial protocol for supervisory network

Min/max limits

ALWAYS OFF

ALWAYS ON

ON WITH COMP.ON

ON/OFF BURST

ALWAYS OFF

ALWAYS ON

ON WITH COMP.ON

0 to 9999

Supervisor baud rate

Supervisor

Ident N.:

Max.phone n.:

Phone book number:

Serial port communication speed for supervisory network

Serial identification number for supervisory network

Phone book capacity (number of telephone numbers saved)

Active telephone number in phone book

Digits that make up the telephone number

Modem password:

Modem rings:

Modem type:

SMS send test:

SMS send enable:

EXTERNAL MODEM

GSM MODEM

Status:

Modem password

Number of rings

Type of modem

Send test SMS (an SMS is sent with a test message)

Enable send SMS in response to an alarm

Status of the modem

Field:

Time next call

Language mask visualization on start

Reset eventi SMS

Percentage of signal reception for the GSM modem

Temporary modem error

Permanent modem error

Waiting time for new call after failed attempt

Enable display of change language screen when starting unit

Delete list of SMS messages sent or to be sent

+030220431 rel 1.6 16/11/2010

Unit of measure

Default

ALWAYS

Access

Ana/I nt/Di g

Supervisor address

manufacturer INT 32

µC3

R /

R-W

ALWAYS

ON manufacturer s 60 user INT 33 s 60 user INT 34

N / Y

0 to 999 s

N user user user user user

INT

CAREL

MODBUS

LONWORKS

Rs232

MODEM ANALOGUE.

GSM MODEM

1200 (RS485/RS422)

2400 (RS485/RS422)

4800 (RS485/RS422)

9600 (RS485/RS422)

19200 (ONLY RS485)

0 to 200

1 to 4

0 to 9999

0 to 9

Tone

Pulse

N / Y

Ext. modem standby

Initialisation

Search GSM network

Modem standby

Modem alarm

Init. error

Enable PIN

GSM network not found

SMS saturation

Send SMS…

Modem connected…

Modem calling…

0 to 100

Temp. error

Perm. error

N / Y s

19200

(ONLY

RS485) user

1 user

1 user user

user

Y user user user user user

N manufacturer N / Y

Menu description

Restore default values

Condensation

Regulation type

Condensation

Condenser number

Condensation

Devices type

Condensation

Fans number

Fans type

Frequency

Cond.fan forcing time on start

PWM Phase cut

Triac max.:

PWM Phase cut

Triac min.:

PWM Phase cut

Range wave:

Fan parameters summer

Setpoint

Fan parameters summer

Diff.

Fan parameters winter

Setpoint

Fan parameters winter

Diff.

Fan minimum speed diff.

Inverter

Max.speed

Inverter

Min.speed

Inverter

Speed-up time

HP prevent

Enabled

HP prevent

Probe

HP prevent

(cooling mode)

Setpoint

HP prevent

(cooling mode)

Diff.

LP prevent

(heating mode)

Setpoint

LP prevent

(heating mode)

Diff.

Fan run with condensation probe fault

Prevent output delay

Low-noise

Start hour

Low-noise

Start hour

Low-noise

End hour

Low-noise

End hour

Low-noise

Setpoint

Summer

Low-noise

Setpoint

Winter

Actual setpoint

Compens.B7

Ext.set.B8

Summer setpoint

Winter setpoint

B8 external setpoint

Summer min

Extended description

Start board memory delete procedure and restore default values

Type of condenser control

Number of condensers installed

Type of condensing devices controlled

Total number of fans installed

Frequency of power supply for fan control by inverter

Forcing time when starting the condenser (temperature control)

Maximum voltage threshold for Triac

Minimum voltage threshold for Triac

Amplitude impulse for phase control

Condensing set point (cooling)

Condenser differential (cooling)

Evaporation set point (heating)

Evaporation differential (heating)

Differential for fan operation at minimum speed

Maximum fan speed with inverter

Minimum fan speed with inverter

Speed-up time with inverter

Enable high pressure prevent

Select the prevent probe

High pressure prevent set point (cooling)

High pressure prevent differential (cooling)

Low pressure prevent set point (heating)

Low pressure prevent differential (heating)

Condenser operating mode in the event of probe fault

Delay to exit the prevent function

Start hour for low-noise operation

Start minutes for low-noise operation

End hour for low-noise operation

End minutes for low-noise operation

Low-noise set point in cooling

Low-noise set point in heating

Active set point

Current outside temperature compensation value (B7)

Current set point from analogue input B8

Cooling set point

Heating set point

Minimum set point value from probe B8 (cooling)

+030220431 rel 1.6 16/11/2010

N / Y

Min/max limits

CIRC.ON/OFF STATUS

PRESSURE

TEMPERATURE

INVERTER

FANS

1 to 4

0 to 999

0 to 100

0.0 to 10.0

0.0 to 99.9

Unit of measure

Default

Ana/I

Access

manufacturer

nt/Di g

Supervisor address

1 manufacturer

Hz 50 manufacturer s 0 manufacturer INT 38

% ms

°C/bar

2.5

14.0 manufacturer manufacturer manufacturer user ANA 11

µC3

R /

R-W

PRESSUR

E manufacturer INT 37 RW

1 manufacturer RW

-99.9 to 99.9

0.0 to 99.9

-99.9 to 99.9

0.0 to 10.0

0 to 999

N / Y

PRESSURE

TEMPERATURE

-99.9 to 99.9

°C/bar

2.0

14.0

2.0

5.0 user user user user

ANA s

10.0

0.0

PRESSUR

°C/bar 20.0 manufacturer manufacturer manufacturer INT manufacturer manufacturer user

0 to 99.9

-99.9 to 99.9

°C/bar 2.0

°C/bar 3.0

°C/bar

°C

0.0

12.0

45.0

7.0 user user

0 to 99.9 °C/bar 2.0 user

FORCE OFF

FORCE ON WITH COMP

0 to 999

FORCE

ON WITH

COMP ON user INT RW s 0 user INT 41 RW

0 to 23

0 to 59 h min

0 user user

0 to 23

0 to 59

0.0 to 99.9 h min

°C/bar

0.0 user user user

0.0 to 99.9

-99.9 to 99.9

-99.9 to 99.9 user direct direct direct direct direct

ANA 57

ANA 58

ANA 59

ANA 1

ANA 2

Menu description

Winter compens.

End temp.

Temperature regulation type

Inlet

Regulation

Type

Inlet

Regulation

Integr.time

Outlet regulation

Max.time ON

Outlet regulation

Min.time ON

Outlet regulation

Max.time OFF

Outlet regulation

Min.time OFF

Outlet regulation

Request time variation differential

Temperature regulation type

B8 external setpoint

Summer max

B8 external setpoint

Winter min

B8 external setpoint

Winter max

Temperature regulation band

Summer temperature setpoint limits

Low

Summer temperature setpoint limits

High

Winter temperature setpoint limits

Low

Winter temperature setpoint limits

High

Setpoint compensation enabled

Maximum compensation

Summer compens.

Start temp.

Summer compens.

End temp.

Winter compens.

Start temp.

Extended description

Maximum set point value from probe B8 (cooling)

Minimum set point value from probe B8 (heating)

Maximum set point value from probe B8 (heating)

Temperature control band

Minimum limit for setting the set point in cooling

Maximum limit for setting the set point in cooling

Minimum limit for setting the set point in heating

Maximum limit for setting the set point in heating

Enable set point compensation

Maximum compensation value

Minimum outside temperature for compensation in cooling

Maximum outside temperature for compensation in cooling

Minimum outside temperature for compensation in heating

Maximum outside temperature for compensation in heating

Type of temperature control

Proportional or proportional + integral inlet control

Integral time for proportional + integral control

Maximum time between starts with outlet control

Minimum time between starts with outlet control

Maximum time between stops with outlet control

Minimum time between stops with outlet control

Differential for calculating the time between steps with outlet control

Select reference value for temperature control

Force OFF outlet regulation

Summer

Force OFF outlet regulation

Winter

External temp.limit

Setpoint

External temp.limit

Differential

Clock config.

Hour

Clock config.

Hour

Clock config.

Date

Clock config.

Date

Clock config.

Date

Time-zones

On-off unit

Time-zones

Temp.setpoint

On-off unit

F1-1 ON

Forced shutdown threshold with outlet control (cooling)

Forced shutdown threshold with outlet control (heating)

Outside temperature set point limit

Outside temperature differential limit

Hour setting

Minutes setting

Day setting

Month setting

Year setting

Enable unit ON-OFF time bands

Enable set point time bands

Band 1. First on hour in the day

+030220431 rel 1.6 16/11/2010

Min/max limits

-99.9 to 99.9

0 to 99.9

-99.9 to 99.9

N / Y

0 to 9999

-99.9 to 99.9

CONTROL PROBE

OUTSIDE TEMP.

CONTROL

-99.9 to 99.9

-9.9 to 9.9

0 to 23

0 to 59

1 to 31

1 to 12

0 to 99

0 to 1

0 to 23

35 h

°C

°C h min day month year

Unit of measure

°C

Default

17.0

°C

40.0

50.0

3.0

Access

direct direct user

Ana/I nt/Di g

Supervisor address

ANA 4 RW

µC3

R /

R-W

°C

°C s s s s

°C

-12.2

48.9

10.0

93.0

2.0

47.0

-10.0

2.0 user user user user user manufacturer user user user user user

ANA 7

ANA 8

ANA 9

ANA 10

-99.9 to 99.9

INLET (PROP.)

OUTLET (DEAD ZONE)

P+I

0 to 9999

°C

5.0

25.0

35.0

10.0 user user user user

ANA

°C 0.0 user ANA 30

(PROP.)

P manufacturer s 600 manufacturer INT 42 manufacturer INT 43 manufacturer INT 44 manufacturer INT 45 manufacturer INT 46 manufacturer ANA 31

CONTROL

PROBE manufacturer INT 47

°C 5.0 manufacturer ANA 32

ANA 33

ANA 34

INT

On-off unit

Tue:

On-off unit

Wed:

On-off unit

Thu:

On-off unit

Fri:

On-off unit

Sat:

On-off unit

Sun:

Setpoint temp.

Start Time-Z 1

Setpoint temp.

Start Time-Z 1

Setpoint temp.

Summer

Setpoint temp.

Winter

Setpoint temp.

Start Time-Z 2

Setpoint temp.

Start Time-Z 2

Setpoint temp.

Summer

Setpoint temp.

Winter

Setpoint temp.

Start Time-Z 3

Setpoint temp.

Start Time-Z 3

Setpoint temp.

Summer

Setpoint temp.

Winter

Setpoint temp.

Start Time-Z 4

Setpoint temp.

Start Time-Z 4

Setpoint temp.

Summer

Setpoint temp.

Winter

Enable clock board

EVD type

EVD probes type

Menu description

On-off unit

F1-1 ON

On-off unit

F1-1 OFF

On-off unit

F1-1 OFF

On-off unit

F1-2 ON

On-off unit

F1-2 ON

On-off unit

F1-2 OFF

On-off unit

F1-2 OFF

On-off unit

F2 ON

On-off unit

F2 ON

On-off unit

F2 OFF

On-off unit

F2 OFF

On-off unit

Lun:

Extended description

Band 1. First on minutes in the day

Band 1. First off hour in the day

Band 1. First off minutes in the day

Band 1. Second on hour in the day

Band 1. Second on minutes in the day

Band 1. Second off hour in the day

Band 1. Second off minutes in the day

Band 2. On hour in the day

Band 2. On minutes in the day

Band 2. Off hour in the day

Band 2. Off minutes in the day

Select band F1, F2, F3 or F4 for Monday

Select band F1, F2, F3 or F4 for Tuesday

Select band F1, F2, F3 or F4 for Wednesday

Select band F1, F2, F3 or F4 for Thursday

Select band F1, F2, F3 or F4 for Friday

Select band F1, F2, F3 or F4 for Saturday

Select band F1, F2, F3 or F4 for Sunday

Start hour for set point band 1

Start minutes for set point band 1

Cooling set point in band 1

Heating set point in band 1

Start hour for set point band 2

Start minutes for set point band 2

Cooling set point in band 2

Heating set point in band 2

Start hour for set point band 3

Start minutes for set point band 3

Cooling set point in band 3

Heating set point in band 3

Start hour for set point band 4

Start minutes for set point band 4

Cooling set point in band 4

Heating set point in band 4

Enable control of the clock board

Type of EVD 400 driver connected to the uChiller3 board

Type of probes connected to the driver

PID direction step

Direction of PID control (direct or reverse)

Maximum number of steps displayed for the type of valve selected

+030220431 rel 1.6 16/11/2010

-99.9 to 99.9

0 to 23

0 to 59

-99.9 to 99.9

0 to 23

0 to 59

-99.9 to 99.9

0 to 23

0 to 59

-99.9 to 99.9

N / Y

EVD400 pLAN

EVD400 tLAN

Not selected

SHeat NTC-P(4-20)mA

SHeat NTC-P(rat)

SHeat NTC-NTC

SHeat Pt1000-P

SHeat NTCht-P(rat)

PID Press

PID NTC

PID NTC HT

PID Pt1000

DIR

REV

Min/max limits

0 to 59

0 to 23

0 to 59

0 to 23

0 to 59

0 to 23

0 to 59

0 to 23

0 to 59

0 to 23

0 to 59

F1,F2,F3,F4

F1, F2, F3, F4

0 to 23

0 to 59

-99.9 to 99.9

36 h min h min

Unit of measure

min 0

Default

h min

Access

user user user user user user user h min h min

0 user user user user

0 user

Ana/I nt/Di g

Supervisor address

µC3

R /

R-W

h min

°C

0 user user user user user user user user user

°C h min

°C

°C h min

0 user user user user user user user

ANA 36

ANA 37

ANA 38

°C

°C h min

°C

0 user user user user user user

ANA

N manufacturer

EVD400 tLAN manufacturer INT 78

Not selected manufacturer INT 79

ANA 35 manufacturer

Menu description

Valve type

Bi flow valve:

Refrigerant

Custom valve config.

Minimum steps

Custom valve config.

Maximum steps

Custom valve config.

Closing steps

Custom valve config.

Opening EXTRAs

Custom valve config.

Closing EXTRAs

Custom valve config.

Phase current

Custom valve config.

Still current

Custom valve config.

Step rate

Custom valve config.

Duty-cycle

EEV stand-by steps

EEV position with

0% power demand

S1 probe limits pressure limits

Min value

S1 probe limits pressure limits

Max value

Alarms delay

Low SuperHeat

Alarms delay

High SuperHeat

Alarms delay

LOP

Alarms delay

MOP

Alarms delay

Delay probe error

CH-Circuit/EEV Ratio

Auto

CH-Circuit/EEV Ratio

CH-Proportional gain

Auto

CH-Proportional gain

CH-Integral time

Auto

CH-Integral time

CH-SuperHeat set C1

Auto

CH-SuperHeat set C1

CH-Low SuperHeat C1

Auto

CH-Low SuperHeat C1

CH-SuperHeat set C2

Auto

CH-SuperHeat set C2

CH-Low SuperHeat C2

Auto

Extended description

Type of valve selectable

Enable bi-directional valve (chiller/heat pump operation on the same valve/driver)

Set type of gas used

Minimum number of steps for custom valve

Maximum number of steps for custom valve

Total number of steps for custom valve

Use extra opening step on custom valve

Use extra closing step on custom valve

Operating current of the custom valve

Holding current of the custom valve

Impulse frequency of the custom valve

Duty cycle of the custom valve

Position valve with capacity request equal to 0%

Minimum end scale of pressure probe S1

Maximum end scale of pressure probe S1

Low SuperHeat alarm delay

High SuperHeat alarm delay

LOP alarm delay

MOP alarm delay

Probe alarm signal delay

Percentage of EEV opening from autosetup

Settable percentage of EEV opening in chiller mode

Proportional gain from autosetup

Settable proportional gain in chiller mode

Integral time from autosetup in chiller mode

Settable integral time in chiller mode

SuperHeat set point from autosetup

Settable SuperHeat set point in chiller mode circuit 1

Low SuperHeat from autosetup

Settable low SuperHeat in chiller mode circuit 1

SuperHeat set point from autosetup

Settable SuperHeat set point in chiller mode circuit 2

Low SuperHeat from autosetup

+030220431 rel 1.6 16/11/2010

0 to 3600

0 to 500

0 to 3600

0 to 999

0 to 100

0 to 99.9

0 to 999

2.0 to 50.0

-4.0 to 21.0

2.0 to 50.0

——

R22

R134a

R404a

R407c

R410a

R507c

R290

R600

R600a

R717

R744

0 to 8100

Min/max limits

Not selected

ALCO EX5

ALCO EX6

ALCO EX7

ALCO EX8

SPORLAN 0.5-20tons

SPORLAN 25-30tons

SPORLAN 50-250tons

CAREL E2V**P

CAREL E2V**A

DANFOSS ETS50 AST-g

DANFOSS ETS100 AST-g

CUSTOM

N / Y

Unit of measure

Default

Not selected

Access

Ana/I nt/Di g

Supervisor address

manufacturer INT 80

N manufacturer DIG 165

0 to 8100

N / Y

0 to 1000

32 to 501

0 to 100

0 to 8100 mA mA

0 manufacturer manufacturer manufacturer manufacturer DIG manufacturer DIG manufacturer manufacturer manufacturer manufacturer manufacturer INT

166

167

µC3

R /

R-W

-9.9 to 99.9

0.0 to 99.9

37 barg barg

-1.0

9.3

120

10 s

% s

°C

°C s s s

% s min manufacturer ANA 80 manufacturer ANA 81 manufacturer INT manufacturer INT manufacturer INT manufacturer INT manufacturer INT manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer

Menu description

CH-Low SuperHeat C2

HP-Circuit/EEV Ratio

Auto

HP-Circuit/EEV Ratio

HP-Proportional gain

Auto

HP-Proportional gain

HP-Integral time

Auto

HP-Integral time

HP-SuperHeat set C1

Auto

HP-SuperHeat set C1

DF-Low SuperHeat C1

Auto

DF-Low SuperHeat C1

DF-SuperHeat set C2

Auto

DF-SuperHeat set C2

DF-Low SuperHeat C2

Auto

DF-Low SuperHeat C2

SHeat dead zone +/-

Auto

SHeat dead zone +/-

Derivative time

Auto

Derivative time

Low SHeat int.time

Auto

Low SHeat int.time

LOP integral time

Auto

LOP integral time

HP-Low SuperHeat C1

Auto

HP-Low SuperHeat C1

HP-SuperHeat set C2

Auto

HP-SuperHeat set C2

HP-Low SuperHeat C2

Auto

HP-Low SuperHeat C2

DF-Circuit/EEV Ratio

Auto

DF-Circuit/EEV Ratio

DF-Proportional gain

Auto

DF-Proportional gain

DF-Integral time

Auto

DF-Integral time

DF-SuperHeat set C1

Auto

DF-SuperHeat set C1

MOP integral time

Auto

MOP integral time

MOP startup delay

Auto

MOP startup delay

Dynamic proportional gain?

Blocked valve check

Auto

Blocked valve check

Hi TCond.protection

Auto

Hi TCond.protection

Hi TCond.int.time

Auto

Hi TCond.int.time

Extended description

Settable low SuperHeat in chiller mode circuit 2

Percentage of EEV opening from autosetup

Settable percentage of EEV opening in heat pump mode

Proportional gain from autosetup

Settable proportional gain in heat pump mode

Integral time from autosetup in heat pump mode

Settable integral time in heat pump mode

SuperHeat set point from autosetup

Settable SuperHeat set point in heat pump mode circuit 1

Low SuperHeat from autosetup

Settable low SuperHeat in heat pump mode circuit 1

SuperHeat set point from autosetup

Settable SuperHeat set point in heat pump mode circuit 2

Low SuperHeat from autosetup

Settable low SuperHeat in heat pump mode circuit 2

Percentage of EEV opening from autosetup

Settable percentage of EEV opening in defrost mode

Proportional gain from autosetup

Settable proportional gain in defrost mode

Integral time from autosetup in defrost mode

Settable integral time in defrost mode

SuperHeat set point from autosetup

Settable SuperHeat set point in defrost mode circuit 1

Low SuperHeat from autosetup

Settable low SuperHeat in defrost mode circuit 1

SuperHeat set point from autosetup

Settable SuperHeat set point in defrost mode circuit 2

Low SuperHeat from autosetup

Settable low SuperHeat in defrost mode circuit 2

SuperHeat dead zone from autosetup

Settable SuperHeat dead zone

Derivative time from autosetup

Settable derivative time

Low SuperHeat integral time from autosetup

Settable integral time low SuperHeat

LOP integral time from autosetup

Settable LOP integral time

MOP integral time from autosetup

Settable MOP integral time

Start MOP delay from autosetup

Settable start MOP delay

Select dynamic proportional control mode

0 to 500

0 to 1

EEV stop control from autosetup

Settable EEV stop control 0 to 999

High condensing temperature alarm from autosetup

Settable high condensing temperature alarm

Condensing temperature integral time from autosetup

Settable condensing temperature integral time

0.0 to 99.9

0.0 to 25.5

2.0 to 50.0

-4.0 to 21.0

2.0 to 50.0

-4.0 to 21.0

Min/max limits

-4.0 to 21.0

0 to 100

0 to 99.9

0 to 999

0.0 to 9.9

0 to 999

0.0 to 30.0

0.0 to 25.5

0 to 100

0 to 99.9

0 to 999

2.0 to 50.0

-4.0 to 21.0

2.0 to 50.0

-4.0 to 21.0

+030220431 rel 1.6 16/11/2010 38 s s s s s s s s

°C s

°C

°C s

% s

°C

% s

°C

Unit of measure

°C

Default

°C s s s s s

°C manufacturer manufacturer DIG 168 manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer

Ana/I

Access

manufacturer

nt/Di g

manufacturer

Supervisor address

manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer

µC3

R /

R-W

Menu description

Go ahead?

Driver 2 status

System waiting for

Go ahead?

Driver 3 status

System waiting for

Go ahead?

Driver 4 status

System waiting for

Extended description

Ignore driver 2 status

Go ahead active, driver 3 status

Ignore driver 3 status

Go ahead active, driver 4 status

Min/max limits

AUTO

MAN.

0 to 8100

AUTO

MAN.

0 to 8100

AUTO

MAN.

0 to 8100

AUTO

MAN.

0 to 8100

Unit of measure

Default

Access

Ana/I nt/Di g

Supervisor address

Manual mng.driver 1

EEV Mode

Manual mng.driver 1

Requested steps

Manual mng.driver 1

EEV Position

Manual mng.driver 2

EEV Mode

Manual mng.driver 2

Requested steps

Manual mng.driver 2

EEV Position

Manual mng.driver 3

EEV Mode

Manual mng.driver 3

Requested steps

Manual mng.driver 3

EEV Position

Manual mng.driver 4

EEV Mode

Manual mng.driver 4

Requested steps

Manual mng.driver 4

EEV Position

Driver 1 status

System waiting for

Driver 1 management mode (automatic or manual)

Settable steps required with manual management on driver 1

Current position read for valve 1

Driver 2 management mode (automatic or manual)

Settable steps required with manual management on driver 2

Current position read for valve 2

Driver 3 management mode (automatic or manual)

Settable steps required with manual management on driver 3

Current position read for valve 3

Driver 4 management mode (automatic or manual)

Settable steps required with manual management on driver 4

Current position read for valve 4

Go ahead active, driver 1 status

Ignore driver 1 status

Go ahead active, driver 2 status

NO FAULT

VALVE NOT CLOSED

BATT. CHARGING

EEPROM ERROR

0 to 1

NO FAULT

VALVE NOT CLOSED

BATT. CHARGING

EEPROM ERROR

0 to 1

NO FAULT

VALVE NOT CLOSED

BATT. CHARGING

EEPROM ERROR

0 to 1

NO FAULT

VALVE NOT CLOSED

BATT. CHARGING

EEPROM ERROR

0 to 1

-9.9 to 9.9 manufacturer manufacturer INT manufacturer manufacturer INT manufacturer manufacturer INT manufacturer manufacturer INT

100 manufacturer DIG 169 manufacturer DIG 170 manufacturer DIG 171

Go ahead?

Drv 1 probes offset

Drv 2 probes offset

Drv 3 probes offset

Drv 4 probes offset

Drv 5 probes offset

Circuit/EEV Ratio for startup opening

Compressor or Unit

Ignore driver 4 status

Probe S1 offset, driver 1

Probe S2 offset, driver 1

Probe S3 offset, driver 1

Probe S1 offset, driver 2

Probe S2 offset, driver 2

Probe S3 offset, driver 2

Probe S1 offset, driver 3

Probe S2 offset, driver 3

Probe S3 offset, driver 3

Probe S1 offset, driver 4

Probe S2 offset, driver 4

Probe S3 offset, driver 4

Valve opening percentage when starting

-9.9 to 9.9

0 to 100

°C/barg

% manufacturer DIG 172 manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer manufacturer INT

Capacity control

Evaporator type

Cool selected

RECIPROCATING

SCREW

SCROLL

QUICK CASE/COLD RM.

CASE/COLD ROOM

Type of capacity-control (if present)

Type of evaporator used in chiller mode

Not selected

NO/STEPS

SLOW CONTINUOUS

FAST CONTINUOUS

Not selected

FINS

PLATES/TUBES

FAST FINNED

SLOW FINNED

+030220431 rel 1.6 16/11/2010 39

µC3

R /

R-W

Menu description

Evaporator type

Heat

Extended description

Type of evaporator used in heat pump mode

Minimum satured temp

Cool mode

Minimum satured temp

Heat mode

Minimum satured temp

Defr.Mode

Maximum satured temp

Cool mode

Maximum satured temp

Heat mode

Maximum satured temp

Defr.Mode

High SuperHeat alarm threshold

Auto

High SuperHeat alarm threshold

Minimum saturated temperature in chiller mode

Minimum saturated temperature in heat pump mode

Minimum saturated temperature in defrost mode

Maximum saturated temperature in chiller mode

Maximum saturated temperature in heat pump mode

Maximum saturated temperature in defrost mode

Current high SuperHeat alarm threshold

Settable high SuperHeat alarm threshold

Min/max limits

Not selected

FINS

PLATES/TUBES

FAST FINNED

SLOW FINNED

-70.0 to 50.0

-50.0 to 90.0

0.0 to 100.0

°C

Unit of measure

Default

Access

Ana/I nt/Di g

Supervisor address

µC3

R /

R-W

manufacturer ANA 82 manufacturer ANA 83 manufacturer ANA 84 manufacturer ANA 85 manufacturer ANA 86 manufacturer ANA 87 manufacturer manufacturer ANA 88

+030220431 rel 1.6 16/11/2010 40

µC3

5. Connections

Assembly instructions

Maximum NTC/ratiometric probe connection cable length: 10 m

Maximum digital input connection cable length: 10 m

Maximum power output connection cable length: 5 m

Maximum fan control output connection cable length: 5 m

Maximum power cable length: 3 m

Power supply

A Class II safety transformer with a minimum rating of 50 VA must be used in the installation to supply just one µchiller 3 . The power supply to the µchiller 3P controller

(or µchiller

3 controllers) should be separated from the power supply to the other electrical devices (contactors and other electromechanical components) inside the electrical panel. If the secondary of the transformer is earthed, make sure that the earth wire is connected to terminal G0. This is true for all the devices connected to the µchiller

IMPORTANT

A fuse must be fitted in series with the power supply, with the following characteristics: 250 Vac 2 A slow-blow (2 AT).

*Direct current connection

Warning, for DC power supply, follow the instructions as shown in the following figure:

DC power supply Power supply for VZC synchronism

Fig. 5.a

WARNINGS

• when programming the parameters with the key, the controller must be disconnected form the power supply and any other devices;

• the 24 Vdc available at the Vdc terminal can be used to supply an 4 to 20 mA active probe; the maximum current is 100 mA. The 5 Vdc available at the 5VR terminals can be used to supply to the 0 to 5 V active ratiometric probes; the maximum total current is 50 mA;

• for applications subject to strong vibrations (1.5 mm pk-pk 10/55 Hz), secure the cables connected to the µchiller 3 using clamps placed around 3 cm from the connectors;

• for operation in domestic environments, shielded cables must be used (one wire + shield) for the tLAN connections (EN 55014-1);

• if a single power transformer is used for the µchiller

3 and the options, to avoid damaging the controller, all the G0 pins on the various controllers or the boards must be connected to the same terminal on the secondary, and all the G pins to the other terminal on the secondary, resetting the polarity of G and G0 for all the terminals;

• the system made up of the control board and the other optional boards represents a control device to be incorporated into class I or class II appliances.

+030220431 rel 1.6 16/11/2010 41

Example of connection, as proposed by the default configuration.

µC3

pump 2

Fig. 5.bErrore.

Assembly for the version without the plastic case

The µchiller 3 should be installed on a 0.5 to 2 mm thick metal panel using the special spacers.

The electrical damage that occurs to electronic components is almost always due to electrostatic discharges caused by the operator. Consequently, suitable precautions must be taken when handling these components, in particular:

• before handling any electronic component or board, touch an earthed object (avoiding contact with a component is not sufficient, as a 10,000 V discharge, a voltage that can easily be reached by static electricity, creates an arc of around 1 cm);

• the materials must remain as long as possible inside their original packages. If necessary, remove the board from the packing and then place the product in antistatic packaging without touching the rear of the board;

• always avoid using plastic, polystyrene or non-antistatic materials;

• always avoid passing the board between operators (to avoid the phenomena of electrostatic induction and consequent discharges).

• special care must be taken when fitting the optional boards on the main board, so as to avoid causing irreparable damage to the boards. Consequently, it is recommended to first secure the connection cables to the optional boards (using the plug-in terminals), and then insert the boards in the corresponding slots and finally secure the connection cables using cable clamps.

+030220431 rel 1.6 16/11/2010 42

µC3

DRIVER ADRESSING IN pLAN NETWORK

The addressing of the EVD400 driver units that can be connected to the pLAN network must be set as following:

ADDRESS 2 — > Circuit 1 Chiller Driver or Circuit 1 Bidirectional Driver

ADDRESS 3 — > Circuit 1 Heat Pump Driver

ADDRESS 4 — > Circuit 2 Chiller Driver or Circuit 2 Bidirectional Driver

ADDRESS 5 — > Circuit 2 Heat Pump Driver

The driver should be configured using the serial addressing tool EVD4_UI Address that can be downloaded from CAREL website http: // ksa . carel . com/ .

For further details on the use of the Driver and its configuration please refer to the manual code +030220225.pdf (EVD4 – User manual)

6. Description of the main functions

6.1 Control set point

Inputs used

• Outside air temperature

• External set point

• Select cooling/heating from digital input

Parameters used

• Active operating mode (chiller/heat pump)

• Cooling set point

• Heating set point

• Enable analogue probe 8 — External set point

• Minimum set point value from probe B8 (cooling)

• Maximum set point value from probe B8 (cooling)

• Minimum set point value from probe B8 (heating)

• Maximum set point value from probe B8 (heating)

• Enable control of the clock board

• Enable set point time bands

• Cooling set point in band 1

• Heating set point in band 1

• Cooling set point in band 2

• Heating set point in band 2

• Cooling set point in band 3

• Heating set point in band 3

• Cooling set point in band 4

• Heating set point in band 4

• Enable set point compensation

• Enable analogue probe 7 for outside air temperature

• Maximum compensation value

• Minimum outside temperature for compensation in cooling

• Maximum outside temperature for compensation in cooling

• Minimum outside temperature for compensation in heating

• Maximum outside temperature for compensation in heating

Outputs used

Setting the control set point from the screen

[B7]

[B8]

[B25]

[main]

[r4]

[r5]

[-/-]

[r6]

[r7]

[r8]

[r9]

[t6]

[-t-]

[r11]

[-/-]

[r12]

[r13]

[r14]

[r15]

[r16]

The control set point can be set from the screen on the user interface.

Two distinct values need to be set, respectively for cooling and heating operation, if the unit features operation in chiller or heat pump mode.

Setting the remote analogue input set point

When enabling control of input B8 for the management of the remote set point, the setting made on the screen can be replaced with a set point calculated based on the 4 to 20 mA signal at the input to the board.

The lower and upper limits must be set for calculating the remote set point in cooling and/or heating operation.

Based on the 4 to 20 mA input signal, linear conversion will be performed between the end values set.

Remote set point for analogue input B8

The limits for calculating the remote set point will be the minimum and maximum values set for the corresponding password-protected parameter on set point screen.

MaxSTP

MaxSTP Maximum remote set point limit

MinSTP Minimum remote set point limit

+030220431 rel 1.6 16/11/2010 43

MinSTP

4mA

Fig. 6.a

20mA B8

Time bands for varying the set point

By enabling control of the clock board, the management of 4 daily set point time bands can be configured.

Each time band features the start and end time and the associated set point.

When the time band starts, the active set point is replaced by the value set for the active time band, irrespective of whether the analogue input for the remote set

µC3

point is activated.

Set point compensation for outside air temperature

The working set point can be adjusted according to the outside air temperature.

Normally this function is used in installations where greater priority is given to comfort; for example, in a shop where people enter and exit frequently, an excessive temperature difference between the inside and outside may be annoying to users and negative to their health.

This function increases or decreases the unit set point according to the outside temperature measured, adding an offset to set point set as described above that is directly proportional to the difference between the minimum and maximum limits.

The parameters for setting the operating limits are different for cooling and heating operation, without any restrictions regarding the setting of the limits for calculating the compensation offset.

6.1.1 Minimum outside temperature limit

Inputs used

[B7]

• Outside air temperature

Parameters used

• Enable analogue probe 7 Outside air temperature

• Outside temperature set point limit

• Outside temperature differential limit

Outputs used

[-/-]

[r17]

[r18]

• Compressor 1 circuit 1

Winding A compressor 1

[B29]

• Compressor 2 circuit 1

Winding B compressor 1

[B30]

• Compressor 3 circuit 1

• Compressor 1 circuit 2. Winding A compressor 2

• Compressor 2 circuit 2. Winding B compressor 2

• Compressor 3 circuit 2

[B31]

[B34]

[B35]

[B36]

If the probe for measuring the outside air temperature is enabled, a temperature threshold is activated below which the compressors are forced off. Temperature control only starts again when the outside air temperature is above the set point + a differential.

On units in chiller operation, this is done to prevent the operation of the unit in ambient conditions that would cause an excessively low condensing pressure.

On units in heat pump operation, this is done to prevent the operation of the unit in ambient conditions that would cause the rapid formation of frost on the outdoor exchanger. To disable the function, simply set the value of the control differential to 0.

6.2 Inlet-room temperature control

Inputs used

• Room temperature (air/air units)

Evaporator water inlet temperature

[B5]

Parameters used

• Active operating mode (chiller/heat pump)

• Configure type of unit

• Total number of compressors / number of refrigerant circuits on unit

• Enable compressor capacity control

• Type of temperature control

• Active set point

• Temperature control band

• Proportional or proportional + integral · Inlet control

• Integral time for proportional + integral control

Outputs used

[main]

[-H-]

[-c-]

[-r-]

[r1]

[r10]

[-r-]

• Liquid solenoid circuit 1

• Liquid solenoid circuit 2

[B31]

[B36]

• Compressor 1 circuit 1. Winding A compressor 1

[B29]

• Compressor 2 circuit 1. Compressor 1 capacity control. Winding B compressor 1 [B30]

• Compressor 3 circuit 1. Compressor 1 capacity control (if Part-Winding enabled) [B31]

• Compressor 1 circuit 2. Winding A compressor 2

[B34]

• Compressor 2 circuit 2. Compressor 2 capacity control

Winding B compressor 2

[B35]

• Compressor 3 circuit 2. Compressor 2 capacity control (if Part-Winding enabled) [B36]

+030220431 rel 1.6 16/11/2010 44

µC3

7. Description of operation

Temperature control proportional to the reading of the evaporator inlet probe

RBM

S1 S2 S3 S4

STPM

EIWT [ºC]

Fig. 7.a

STPM Control set point band

EIWT Evaporator water inlet temperature

S 1…4 Control steps

The temperature control depends on the values measured by the temperature probe located at the evaporator inlet (air/water – water/water units), or by the room probe (air/air units), and follows proportional logic.

Depending on the total number of compressors configured and the number of load steps per compressor, the control band set will be divided into a number of steps of the same amplitude.

When the various thresholds are exceeded, a compressor or load step will be activated.

The following relationships are applied to determine of the activation thresholds:

Total number of control steps = Number of compressors + (Number of compressors * Number load steps/compressor).

Proportional step amplitude =

Step activation threshold =

Proportional control band / Total number of control steps

Control set point + (Proportional step amplitude * Progressive step [1,2,3,…]).

EXAMPLE OF TEMPERATURE CONTROL ON CHILLER UNITS WITH 4 COMPRESSORS

Semi-hermetic compressors with proportional control

C1 C2 C3 C4

EIWT [ºC] RBM

STPM

STPM Control set point band

EIWT

C 1…4

Evaporator water inlet temperature

Compressor steps

7.1 Outlet temperature control

Inputs used

• Evaporator water outlet temperature

Parameters used

• Active operating mode (chiller/heat pump)

• Configure type of unit

• Total number of compressors / number of refrigerant circuits on unit

• Enable compressor capacity control

• Type of temperature control

• Active set point

• Temperature control band

• Maximum time between starts with outlet control

• Minimum time between starts with outlet control

• Maximum time between stops with outlet control

• Minimum time between stops with outlet control

• Differential for calculating the time between steps with outlet control

• Forced shutdown threshold with outlet control (cooling)

• Forced shutdown threshold with outlet control (heating)

Fig. 7.b

[B6]

[-r-]

[main]

[-H-]

[-c-]

[-r-]

[r1]

[r10]

[-r-]

+030220431 rel 1.6 16/11/2010 45

LTOFF

TVD

µC3

Outputs used

• Liquid solenoid circuit 1

• Liquid solenoid circuit 2

• Compressor 1 circuit 1

Winding A compressor 1

[B31]

[B36]

[B29]

• Compressor 2 circuit 1

Compressor 1 capacity control

Winding B compressor 1

• Compressor 3 circuit 1

Compressor 1 capacity control (if Part-Winding enabled)

• Compressor 1 circuit 2

Winding A compressor 2

• Compressor 2 circuit 2

Compressor 2 capacity control

Winding B compressor 2

• Compressor 3 circuit 2

Compressor 2 capacity control (if Part-Winding enabled)

EXAMPLE OF CONTROL IN THE DEAD ZONE ON CHILLER UNITS

[B30]

[B31]

[B34]

[B35]

[B36]

Temperature control with dead zone based on the reading of the outlet probe

t [s]

TVD

RBM

HTOFF HTON

DOffZ DOnZ

LTON

STPM EOWT [ºC]

Fig. 7.c

STPM Control set point band zone

TVD Time variation differential for activation/deactivation steps

EOWT Evaporator water outlet temperature t Time

DonZ Device start zone

HTON Maximum time delay for activation of steps

LTON Minimum time delay for activation for steps

DoffZ Device stop zone

HTOFF Maximum time delay for deactivation of steps

LTOFF Minimum time delay for deactivation for steps

Temperature control is based on the temperature measured by probe B6 on units with one or two evaporators; in the latter the water temperature of mixture is used.

A temperature dead band is identified based on the set point and band.

Temperature values between the set point and set point + band (STPM < Temperature < STPM+RBM) will not switch any compressors On/Off.

Temperature values above set point + band (Temperature > STPM+RBM) will activate the compressors

Temperature values below the set point (Temperature < STPM) will deactivate the compressors

The compressor start/stop procedures are controlled by variable delay times.

With a differential set for calculating the delay time, the activation/deactivation of the devices is modulated according to the temperature measured.

Setting to 0 the minimum delay times upon an increase and/or decrease in the demand, disables the corresponding calculation functions.

A temperature threshold is envisaged, for both cooling operation and heating operation, below/above which the devices installed will in any case be stopped, in order to avoid excessive cooling/heating output produced by the unit.

+030220431 rel 1.6 16/11/2010 46

µC3

7.2 Differential Temperature Control

Inputs used

• Evaporator inlet temperature

• Evaporator outlet temperature

• Outside air temperature

• Room temperature (acqua terminal)

Parameters used

• Type of unit

• Total number of compressors

• Number of load steps

• Type of temperature control

• Proportional band for inlet control or Dead zone for outlet control

• Temperature difference (delta) between reference and controlled value.

Outputs used

• Liquid solenoid

• Compressor start relay

• Compressor capacity control relay

Description of operation

The temperature control differential is based on the difference between a reference temperature and a controlled temperature.

∆ calculated = Reference temperature – Controlled temperature

The value calculated in this way is compared against the rated value.

Depending on the unit operating mode, cooling or heating, the following situations may occur.

∆ calculated > rated ∆

Cooling

—

Heating

Compressors On

∆ calculated < rated ∆ Compressors On —

The purpose of this function is to maintain a constant temperature difference between two components in a system, with different thermal inertia, by acting on only one of the values measured.

The controlled temperature is defined as the component with the lower thermal inertia.

The reference temperature is defined as the component with the higher thermal inertia.

As the unit can operate in cooling or heating mode as selected from the screen on the user interface or by the digital input, if the reference temperature equals or exceeds the controlled temperature (i.e. opposite to the unit operating mode), the operation of the controller switches from error correction to amplification; consequently, the application of this type of control is designed for systems in which the variation in controlled values occurs within certain limits dictated by the operating mode of the active unit.

Control is proportional, according to the control band set.

The proportional control band is divided into a number of uniform steps, equal to the total number of compressors and load steps installed (as for inlet temperature control). The control set point is the rated temperature difference set.

The value controlled is the difference calculated between the reference temperature and the controlled temperature.

To select this type of control, a special parameter is provided that indicates which signal is used by the temperature control functions:

• Evaporator inlet-outlet control probe

• Reference temperature– Controlled temperature

7.3 Condensing unit control

Inputs used

• External control value (condensing units)

• Condensing unit digital control 1

• Condensing unit digital control 2

• Condensing unit digital control 3

• Condensing unit digital control 4

Parameters used

• Configure type of unit

• Type of condensing unit control

• Select proportional or step condensing unit control

Outputs used

• Compressor 1 circuit 1. Winding A compressor 1

• Compressor 2 circuit 1. Compressor 1 capacity control.

Winding B compressor 1

[B8]

[B12]

[B13]

[B14]

[B28]

[-H-]

[B29]

[B30]

+030220431 rel 1.6 16/11/2010 47

µC3

• Compressor 3 circuit 1. Liquid solenoid circuit 1.

Compressor 1 capacity control (if Part-Winding enabled)

• Compressor 1 circuit 2. Winding A compressor 2

• Compressor 2 circuit 2. Compressor 2 capacity control

Winding B compressor 2

• Compressor 3 circuit 2. Liquid solenoid circuit 2

Compressor 2 capacity control (if Part-Winding enabled)

[B31]

[B34]

[B35]

[B36]

Description of operation

Condensing unit control involves the devices being called by a proportional voltage or current signal supplied by an external controller, or alternatively a series of electromechanical contacts via digital input. As the compressors are called by an external controller, the corresponding control probes and parameters are not used.

Control with analogue input

The signal acquired by analogue input B8 is 4 to 20mA.

There are two control modes: proportional or steps, these can be selected via the dedicated user parameter.

Proportional control

Below is a description of the operation of proportional control when a 4 to 20 mA analogue input is used.

The compressor requests depend on the analogue input B8, with continuous variation of the input signal, the board calculates the number of steps required based on the value of the signal:

Analogue input

4mA 0% request (no compressor on)

20mA 100% request (all the compressors on)

EXAMPLE OF CONTROL ON A UNIT WITH 6 HERMETIC COMPRESSORS:

Condensing units with proportional control

FSC

THRS5

THRS4

THRS2

THRS1

RC [V/mA]

C1 C2 C3 C4 C5 C6

Fig. 7.d

FSC Analogue input end scale

THR S1…5 Activation threshold for step 1 to 5

RC Remote control signal

C 1…6 Compressor steps

Total number of compressors = 6

Number of load steps per compressor = 0

Total number of steps = Total number of compressors + ( Total number of compressors * Number of load steps per compressor ) = 6 + 6 * 0 = 6

Amplitude of each step = Operating current range / Total number of steps = ( 20 – 4 ) / 6 = 2.666 mA

If the analogue input B8 measures 9.35 mA, two steps will be requested, therefore two compressors will be activated.

Two safety thresholds are calculated for the total activation or deactivation of the compressors, if exceeded.

These thresholds are calculated according to the following relationships.

Forced shutdown threshold = ( Amplitude of each step / 2 ) + Analogue input lower end scale = ( 2.666 / 2 ) + 4 = 1.333 mA  5.3 mA

Forced start threshold = Analogue input upper end scale – Forced shutdown threshold = 20 – 1.333 = 18.667 mA  18.6 mA

If the reading of the analogue input B8 is less than the value of the forced shutdown threshold calculated, the devices will be stopped unconditionally.

If the reading of the analogue input B8 is greater than the value of the forced start threshold calculated, the devices will be started unconditionally.

Stepped control

Below is a description of the operation of stepped control steps when a 4 to 20 mA analogue input is used.

The compressor requests depend on the analogue input B8, using a current divider or equivalent circuit to supply precise signals that correspond to the activation or deactivation of the compressors and the relative load steps.

Analogue input 4 mA 100% request (all compressors on)

Analogue input 20 mA 0% request (no compressor on)

+030220431 rel 1.6 16/11/2010 48

µC3

EXAMPLE OF CONTROL ON A UNIT WITH 6 HERMETIC COMPRESSORS:

Condensing units with stepped control

C6 C5 C4 C3 C2 C1

0 THRS5 THRS4 THRS3 THRS2 THRS1 FSC RC [V/mA]

Fig. 7.e

FSC Analogue input end scale

THR S1…5 Activation threshold for step 1 to 5

RC Remote control signal

C 1…6 Compressor steps

Total number of compressors = 6

Number of load steps per compressor = 0

Total number of steps = Total number of compressors + ( Total number of compressors * Number of load steps per compressor ) = 6 + 6 * 0 = 6

Amplitude of each step = Operating current range / Total number of steps = ( 20 – 4 ) / 6 = 2.666 mA.

If analogue input B8 measures 14.65 mA, two steps will be required, and consequently two compressors will be started.

Control with digital inputs

A number of digital inputs equal to the number of compressors installed on the unit are provided to start the devices.

There is no direct correspondence between the digital input and the compressor on, however the number of inputs closed at the same time will determine the number of compressors that are on. The compressor activation sequence is in any case defined according to rotation, as enabled by the corresponding parameter.

Only in the case of units with six compressors in two refrigerant circuits, in trio configuration, is there an exception to the compressor control mode; digital inputs 4 and 18 activate two load steps in response to just one input signal.

Considering this characteristic, the cooling capacity of the unit can still be modulated by uniformly increasing the capacity one step at a time; the digital inputs must be switched in such a way as to ensure that the difference in the number of requests between two consecutive input control sequences is equal to one step.

7.4 Compressor rotation

Inputs used

• Compressor 1 thermal overload circuit 1

• Compressor 2 thermal overload circuit 1

• Compressor 3 thermal overload circuit 1 (units with trio compressors)

• Compressor 1 thermal overload circuit 2

• Compressor 2 thermal overload circuit 2

• Compressor 3 thermal overload circuit 2 (units with trio compressors)

Parameters used

• Configure type of unit

• Type of semi-hermetic compressors controlled

• Total number of compressors / number of refrigerant circuits on unit

• Enable compressor capacity control

• Select type of compressor / refrigerant circuit rotation

• Enable operation of compressor 1 circuit 1

• Enable operation of compressor 2 circuit 1

• Enable operation of compressor 3 circuit 1

• Enable operation of compressor 1 circuit 2

• Enable operation of compressor 2 circuit 2

• Enable operation of compressor 3 circuit 2

• Manually force compressor 1 circuit 1

• Manually force compressor 2 circuit 1

• Manually force compressor 3 circuit 1

• Manually force compressor 1 circuit 2

• Manually force compressor 2 circuit 2

• Manually force compressor 3 circuit 2

Outputs used

• Liquid solenoid circuit 1

• Liquid solenoid circuit 2

• Compressor 1 circuit 1

Winding A compressor 1

• Compressor 2 circuit 1. Compressor 1 capacity control

Winding B compressor 1

[-c-]

[-H-]

[-c-]

[-H-]

[-c-]

[-H-]

[-c-]

[B17

[B18]

[B26]

[B22]

[B23]

[B27]

[B31]

[B36]

[B29]

[B30]

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• Compressor 3 circuit 1

Compressor 1 capacity control (if Part-Winding enabled)

[B31]

• Compressor 1 circuit 2. Winding A compressor 2

• Compressor 2 circuit 2. Compressor 2 capacity control Winding B compressor 2

• Compressor 3 circuit 2

Compressor 2 capacity control (if Part-Winding enabled)

[B34]

[B35]

[B36]

The compressor calls are rotated so as to balance out the number of operating hours and starts of the devices.

There are three different types of rotation available:

• L.I.F.O.

• F.I.F.O.

• By time

Rotation is only performed between the compressors, and not between the capacity steps.

LIFO rotation

The first compressor to start will be the last to stop. The device activation sequence on a unit with 4 compressors is: C1, C2, C3, C4

The device deactivation sequence on a unit with 4 compressors is: C4, C3, C2, C1

FIFO rotation

The first compressor to start will be the first to stop. The device activation sequence on a unit with 4 compressors is: C1, C2, C3, C4.

The device deactivation sequence on a unit with 4 compressors is: C1, C2, C3, C4

Rotation by time

This type of rotation is based on the count of the device operating hours. The compressor with the least number of operating hours will always start first. The active compressor with the highest number of operating hours will always stop first.

The activation of one or more than one alarm that causes one or more compressors to shutdown requires the activation of an equivalent number of devices, from those available, so as to make up for the variation in active cooling capacity.

7.5 TANDEM – TRIO compressor rotation

Rotation between circuits

In the units with tandem or trio compressors in two refrigerant circuits, the circuit rotation described is incorporated into the rotation between compressors, for the purpose of balancing the quantity of oil in each.

Whenever the unit is started, and the compressors are completely off, rotation is performed that involves the alternating start-up of the two circuits.

Force tandem — trio compressors in FIFO rotation

For these types of compressors, the aim is to avoid the operation of circuits at part load for excessive periods (affecting the operation of the compressors that are off).

A maximum part load operating time has been introduced, after which the active compressor is stopped, and the demand is transferred to another compressor in the same circuit.

If no compressors are available when the exchange in condition occurs, the operation of the circuit remains unchanged.

The activation of an alarm on the compressor being forced on will involve a return to the previous operating conditions.

The count time for forcing the compressor on is reset whenever an alarm occurs in the circuit.

7.6 Compressor safety times

Inputs used

• Compressor 1 thermal overload circuit 1

• Compressor 2 thermal overload circuit 1

• Compressor 3 thermal overload circuit 1 (units with trio compressors)

• Compressor 1 thermal overload circuit 2

• Compressor 2 thermal overload circuit 2

• Compressor 3 thermal overload circuit 2 (units with trio compressors)

Parameters used

[B17

[B18]

[B26]

[B22]

[B23]

[B27]

• Minimum compressor on time

• Minimum compressor off time

• Minimum time between starts of different compressors

• Minimum time between starts of the same compressor

Outputs used

• Liquid solenoid circuit 1

• Liquid solenoid circuit 2

• Compressor 1 circuit 1. Winding A compressor 1

• Compressor 2 circuit 1. Compressor 1 capacity control

Winding B compressor 1

• Compressor 3 circuit 1.

Compressor 1 capacity control (if Part-Winding enabled)

• Compressor 1 circuit 2. Winding A compressor 2

• Compressor 2 circuit 2. Compressor 2 capacity control

Winding B compressor 2

• Compressor 3 circuit 2.

Compressor 2 capacity control (if Part-Winding enabled)

[-c-]

[B31]

[B36]

[B29]

[B30]

[B31]

[B34]

[B35]

[B36]

Minimum compressor on time

This defines a guaranteed minimum ON time for the compressors; once activated, the compressors will operate for this time, irrespective of the temperature control request status. Only the activation of a protector will cause the device to shutdown earlier.

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CREQ Compressor request

CMP Compressor status

MONT Minimum compressor on time

Time

CREQ

CMP t[s]

Fig. 7.f

MONT

Minimum compressor off time

This defines the minimum guaranteed OFF time for the compressors, in response to any shutdown signal due to the temperature conditions or an alarm.

Even if called to start, a compressor cannot be switched on before this time elapses.

t[s]

CREQ Compressor request

CMP Compressor status

MOFFT Minimum compressor off time t Time

CREQ

CMP t[s] t[s]

µC3

MOFFT

Fig. 7.g

Minimum time between starts of different compressors

This defines the minimum guaranteed time between the starts of two different compressors; this prevents simultaneous starts of multiple devices

C1REQ Compressor 1 request

C2REQ Compressor 2 request

CMP1 Compressor 1 status

CMP2 Compressor 2 status

CMPST Minimum time between starts of different compressors t Time

C1REQ

C2REQ

CMP1

CMP2

CMPST

Fig. 7.h

t[s] t[s] t[s] t[s]

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Minimum time between starts of the same compressor

This defines the minimum guaranteed time between two successive starts of the same compressor.

Even if called to start, the compressor will not be able to switch on before this times elapses.

Setting this parameter suitably can limit the number of starts/hour according to the specific instructions of the manufacturer of the compressor.

CREQ

CREQ Compressor request status

CST Minimum time between starts of the same compressor t Time

CMP

Fig. 7.i

CST t[s] t[s]

7.7 Pumpdown management

Inputs used

• Low pressure switch circuit 1

• Low pressure switch circuit 2

• Evaporation pressure 1

• Evaporation pressure 2

• ON/OFF from digital input (air/air units and chillers)

Parameters used

[B15]

[B20]

[B1]

[B2]

[B13]

• Type of semi-hermetic compressors controlled

• Maximum pumpdown duration

• Select end pumpdown mode

• End pumpdown pressure from probe

• Unit ON/OFF from panel

• Unit ON/OFF from supervisor

Outputs used

[-c-]

[main]

[]

• Liquid solenoid circuit 1

• Liquid solenoid circuit 2

• Winding A compressor 1

• Winding B compressor 1

• Winding A compressor 2

• Winding B compressor 2

[B31]

[B36]

[B29]

[B30]

[B34]

[B35]

The pumpdown procedure is performed for the purpose of completely emptying the residual freon from the evaporator in a refrigerant circuit during shutdown.

The following conditions can cause a refrigerant circuit to shutdown:

Remote ON/OFF: unit shutdown from remote contact

ON/OFF from keypad: unit shutdown from display with specific procedure

ON/OFF from supervisor: unit shutdown on signal from supervisory system

Thermostat: circuit shutdown when temperature set point reached

The pumpdown procedure involves the operation of a certain circuit with the liquid solenoid valve de-energised (closed).

The pumpdown procedure ends when:

• the low pressure transducer is activated, according to the set end pumpdown threshold

• the low pressure switch is activated

• the maximum time limit is reached

During the pumpdown procedure, the low pressure alarm, both from transducer and from pressure switch, is disabled.

µC3

request status pressure status

LPSTOP End due to low pressure

TIMESTOP End on reaching maximum time t [s] Time

Fig.7.l

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7.8 Main pump management

Inputs used

• Evaporator water flow switch

• Evaporator pump 1 thermal overload

• Evaporator pump 2 thermal overload

Parameters used

• Number of evaporator pumps

• Evaporator pump/main fan operating mode

• Delay between start of pump/main fan and compressors

• Delay for stopping the pump/main fan

• ON time in burst operation

• OFF time in burst operation

Outputs used

• Evaporator pump 1

• Evaporator pump 2

The main circulating pump can be managed in four different operating modes:

[B12]

[B14]

[B28]

[-H-]

[-c-]

[-H-]

[B33]

[B36]

• Always on: the pump is activated when the unit is started and remains active while the unit is operating; if there are two pumps, the devices will be rotated according to the specific settings

• On according to the status of the compressor: the pump is on according to the compressor call status; consequently, when the set point has been reached, the circulating pump and compressors, excepting in the case of safety times, are off

• Burst operation: normally the circulating pump is off, and is activated periodically for a set time; the unit temperature conditions are constantly monitored and the compressors are started if necessary; when the control set point is reached the pump is switched off

• Always off: the main circulating pump is not managed, whatever the operating conditions of the unit

Two safety times are observed, respectively a compressor activation delay after the circulating pump starts, and pump shutdown delay after the compressors stop when having reached the control set point or the unit is shutdown.

7.9 Pump rotation

Inputs used

• Evaporator water flow switch

• Evaporator pump 1 thermal overload

• Evaporator pump 2 thermal overload

Parameters used

[B12]

[B14]

[B28]

• Number of evaporator pumps

• Select type of evaporator pump rotation

• Operating hour threshold for the rotation of the evaporator pumps

Outputs used

[-H-]

• Evaporator pump 1

• Evaporator pump 2

[B33]

[B36]

If there are two circulating pumps on the unit, the operation of these can be rotated in the following modes:

• Rotation at start: when the unit is started, the operation of the pumps is rotated, so as to balance the number of starts-stops of the devices

• Rotation by time: a rotation time is established (expressed in hours), which when reached the devices are rotated, so as to balance the number of operating hours of the devices.

Control of the second circulating pump in any case involves forced rotation in the event of an alarm event of one of the devices, to ensure maximum

continuity of operation.

Pump thermal overload alarm

If a thermal overload alarm is activated on the active circulating pump, the pump is stopped and the devices are rotated.

A further activation of the thermal overload alarm on the active reserve pump causes the total shutdown of the unit due to no other pump being available

on power-up, and a new rotation is forced.

Evaporator flow switch alarm

The activation of the evaporator flow switch alarm forces the rotation of the devices and the activation of the reserve pump; in this condition, the alarm signal delay time in steady operation is re-activated, after which, with the alarm active, the unit is switched off.

Evaporator flow switch alarm/intervention

The evaporator flow switch intervention generates the EVAPORATOR FLOW SWITCH ALARM respecting the following time:

• Evaporator flow switch alarm delay at start-up

• Evaporator flow switch alarm delay in steady operation

If there are 2 evaporator pumps, the intervention of the flow switch causes the startup of the backup pump. If after the » Evaporator flow switch alarm delay at startup” the flow switch signal is still present, the EVAPORATOR FLOW SWITCH ALARM occurs and the unit is turned off.

The compressors , after the startup of the backup pump, remain still ON for a delay time in steady operation.

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7.10 Electric heaters

Inputs used

• Room temperature (air/air units) Evaporator water inlet temperature

• Air outlet temperature (air/air units) Evaporator water outlet temperature

• Evaporator 1 water outlet temperature

• Evaporator 2 water outlet temperature

• Outside air temperature

• Boiler temperature

Parameters used

[B5]

[B6]

[B9]

[B10]

[B7]

[B1]

• Select number of evaporators

• Type of temperature control

• Enable analogue probe 7 Outside air temperature

• Enable analogue probe 1 Boiler temperature

• Configuration of analogue inputs 1 and 2

• Antifreeze heater set point

• Antifreeze heater differential

• Support heater set point in cooling mode

• Support heater differential in cooling mode

• Support heater set point 1 in heating mode

• Support heater differential 1 in heating mode

• Support heater set point 2 in heating mode

• Support heater differential 1 in heating mode

• Delay in activation of the support heater in heating mode

• Select probe for cooling support control in air/air units

• Outside air set point to enable support heater

• Outside air differential to enable support heater

• Boiler temperature set point to enable support heater

• Boiler temperature differential to enable support heater

• Active operating mode (chiller/heat pump)

Outputs used

[-H-]

[-r-]

[-/-]

[A3]

[A4]

[A5]

[A6]

[A7]

[A8]

[A9]

[A10]

[A11]

[-A-]

[main]

• Status of digital output 11. Heater 1

• Status of digital output 12. Heater 2

Antifreeze heater

[B39]

[B40]

To prevent the activation of the antifreeze protection one or more electric heaters are used, immersed in the flow of water at the evaporator and controlled based on by a set point and differential. The activation of the antifreeze heater causes the total shutdown of the compressors, or in any case disables the cooling devices, until the temperature returns above the heater set point + differential.

Support heater in cooling

To prevent the activation of the minimum room temperature limit protection in air/air units, an electric heater is activated, immersed in the main air flow, controlled based on a set point and differential.

The activation of the support heater in cooling causes the total shutdown of the compressors, or in any case disables the cooling devices, until the temperature returns above the heater set point + differential.

SUPPORT HEATERS IN HEATING

Heating support function on water/air – water/water units

In units operating in heating mode with reversal on the refrigerant circuit, electric heaters (used in cooling mode as evaporator antifreeze heaters) are used to support the heating function, if the operation of the unit cannot satisfy the thermal load of the installation. These heaters are controlled based on the unit temperature control probe (inlet or outlet, according to the setting made), while two separate set points and differentials are set for the activation of the devices. In the event of control based on the temperature measured at the evaporator outlet, in units with one and two evaporators, the heaters will be controlled based on the values measured by analogue input B6.

Heating support function on air/air units

In units operating in heating mode with reversal on the refrigerant circuit, electric heaters are used to support the heating function, if the operation of the unit cannot satisfy the thermal load of the installation.

The user can set whether the heater is activated based on the room temperature or the outlet temperature.

The support heaters are managed by setting an activation delay time, calculated from when the circulating pump starts, so as to give the unit time to reach steady operation. Enabling the control set point compensation function will also cause the compensation of the heater set point, according to the same temperature difference calculated.

Boiler function

If the reading of analogue input B1 is enabled and configured as the boiler temperature, the operation of the heaters can be managed based on the outside temperature conditions and the water temperature in the storage cylinder.

Once having set a control set point and differential for both readings, the support heaters will be activated based on the control temperature measured (inlet or outlet, according to the specific setting) in reference to specific set points and differentials, only if the outside temperature conditions and boiler conditions allow.

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7.11 Selecting the operating mode

Inputs used

• Select cooling/heating from digital input

Parameters used

[B25]

• Configure type of unit

• Cooling/Heating from panel

• Enable cooling/heating selection from digital input

• Enable cooling/heating selection from supervisor

• Select cooling/heating from supervisor

• Logic of the 4-way reversing valve

• Force devices OFF for automatic reversal of the refrigerant circuit

Outputs used

[-H-]

[main]

[H2]

[H4]

[-H-]

• 4-way valve for reversing the refrigerant circuit in circuit 1

• 4-way valve for reversing the refrigerant circuit in circuit 2

[B41]

[B42]

In general, if the unit configured features operation in both chiller mode (cooling) and heat pump mode (heating), the operating mode can be changed with the unit on or off, depending on the type of selection.

There are three different ways to change the operating mode:

Keypad: a parameter is set on the menu. The operating mode can only be changed if the unit is off and the circulating pump has stopped

Supervisor: this can be enabled, with a switching signal received from the supervisor serial network. The operating mode can only be changed if the unit is off and the circulating pump has stopped

Digital input: this can be enabled, with the switching of the enabled digital input, by an external controller. A delay must be set for switching the reversing valves in the refrigerant circuit, if equal to zero the mode is switched immediately, otherwise the unit is switched off according to the procedure shown in the figure

Switching Cooling-heating from digital input

SWDIN

SWDIN Status of the digital input for Cooling-heating selection

USTAT Unit operating status

4WAY Operating status of 4 way reversing valves

(possibly depending on the operating logic)

SWD Cooling-heating switching delay t[s] Time

USTAT

4WAY

Fig. 7.m

t[s]

SWD SWD SWD SWD

The keypad and supervisor have equal priority in setting the operating mode, the most recent variation determines the actual status; if enabled, the digital input has absolute priority over the other two.

7.12 ON/OFF time bands

Inputs used

• System hours

• System minutes

• System day

• System month

• System year

Parameters used

• Enable control of the clock board

• Hour setting

• Minutes setting

• Day setting

• Month setting

• Year setting

• Enable unit ON-OFF time bands

• Enable set point time bands

• Configure time band parameters – day

Outputs used

[main]

[t6]

[t1]

[t2]

[t3]

[t4]

[t5]

[-t-]

ON-OFF time bands

If control of the clock board is enabled, and the board is fitted and operating, the program can control 4 different types of time band, with separate application on each day of the week.

The time bands set only take effect if the unit has been switched on from the button.

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Band 1

Four values are set, respectively the start and end times for two periods, within which the unit is on.

Band 2

Two values are set, respectively the start and end time band, within which the unit is on.

Band 3

The unit is forced ON without time limits

Band 4

The unit is forced OFF without time limits

Set point time bands

If control of the clock board is enabled, and the board is fitted and operating, the program can control 4 different types of time band with changes in the set point, applied on each day of the week.

A different cooling and heating set point must be set for each period (total of 8 parameters) plus the start and end times of the bands.

Setting the same start and end times is equivalent to disabling the function for that period of time.

7.13 Antifreeze control

Inputs used

• Evaporator water outlet temperature

• Evaporator 1 water outlet temperature

• Evaporator 2 water outlet temperature

Parameters used

• Enable analogue probe 6. Evaporator water outlet temperature

• Antifreeze alarm set point (chiller units)

• Antifreeze alarm differential (chiller units)

• Minimum antifreeze/low room temperature set point limit

• Maximum antifreeze/low room temperature set point limit

• Type of antifreeze alarm reset

• Antifreeze alarm delay when starting (manual reset)

• Device start mode in antifreeze with unit off

Outputs used

• Generic alarm

[B6]

[B9]

[B10]

[-/-]

[A1]

[A2]

[-A-]

[A12]

[B38]

General information

The antifreeze function is based on the reading made by the temperature probes located on the evaporator outlet.

The function is different for units with one or two water circuits, with the antifreeze control based on the readings of the following inputs respectively:

• B6 single circuit units

• B9-B10 two circuit units

FA AFH

µC3

THR_AFH

DIFF_AFH

Fig. 7.n

EOWT [ºC]

THRA_F

DIFF_AF

THRA_F

DIFF_AF

Antifreeze alarm set point

Antifreeze alarm differential

FA Antifreeze alarm

THR_AFH Antifreeze heater set point

DIFF_AFH Antifreeze heater differential

AFH Antifreeze heater

EOWT Evaporator water outlet temperature

Antifreeze alarm

See the antifreeze alarm in the chapter on the alarms.

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7.14 Condenser — evaporator control

Inputs used

• Condensing temperature 1

• Condensing temperature 2

• Outside air temperature

• Condensing pressure 1

• Condensing pressure 2

Parameters used

[B1]

[B2]

[B7]

[B3]

[B4]

• Type of condenser control

• Number of condensers installed

• Type of condensing devices controlled

• Total number of fans installed

• Forcing time when starting the condenser (control by temperature)

• Maximum voltage threshold for Triac

• Minimum voltage threshold for Triac

• Amplitude impulse for phase control

• Condenser control set point (cooling)

• Condenser differential (cooling)

• Evaporator set point (heating)

• Evaporator differential (heating)

• Fan operation differential at minimum speed

• Maximum fan speed with inverter

• Minimum fan speed with inverter

• Speed-up time with inverter

[-F-]

• Enable high pressure prevent

[-F-]

[-F-] [-F-]

[-F-]

• High pressure prevent set point(cooling)

• High pressure prevent differential(cooling)

• Low pressure prevent set point(heating)

• Low pressure prevent differential(heating)

• Condenser operating mode in the event of probe fault

• End prevent delay

• Start hour for low-noise operation

• Start minutes for low-noise operation

• End hour for low-noise operation

• End minutes for low-noise operation

• Low-noise set point in cooling

• Low-noise set point in heating

• Enable control of the clock board

• Active operating mode (chiller/heat pump)

Outputs used

• Fan 1 circuit 1

• Fan 2 circuit 1

• Fan 2 circuit 1 (1 condenser)

• Fan 1 circuit 2 (2 condensers)

• Fan 2 circuit 2

• Status of analogue output 1

Condenser fans circuit 1

• Status of analogue output 2

Condenser fans circuit 2

[-F-]

[F1]

[F2]

[F3]

[F4]

[F5]

[F6]

[t6]

[main]

[B32]

[B31]

[B37]

[B36]

[B43]

[B44]

Condenser-evaporator on/off linked to compressor operation

The operation of the fans will be slaved exclusively to the operation of the compressors:

Compressor off = fan off

Compressor on = fan on

No pressure or temperature transducers need to be installed

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On/off condenser-evaporator operation linked to the pressure or temperature sensor reading

The operation of the fans will be slaved to the operation of the compressors and the value read by the pressure or temperature sensors, according to a set point and band, with proportional control.

In cooling operation, when the pressure/temperature is less than or equal to the set point, all the fans will be off; when the pressure/temperature rises to the set point

+ band, all the fans will be on.

In heating operation, when the pressure/temperature is greater than or equal to the set point, all the fans will be off; when the pressure/temperature falls to the set point — band, all the fans will be on.

The control band is divided into a uniform number of steps, equal to the number of fans installed for the circuit in question.

Single or separate condensers/evaporators can be chosen; with single coils, the fans will be controlled by the higher/lower pressure/temperature, with the second separate coil, each pressure sensor/temperature controls its own fan or group of fans.

Modulating condenser-evaporator operation linked to the pressure or temperature sensor reading

The fans will be controlled by a 0 to 10 V or PWM analogue output, in proportion to the request from the pressure / temperature sensors.

Condenser fan control in chiller operation

Fig. 7.o Condenser control devices and alarms

Speed

MAXV

HYST

MINV

OFFD RBC

CPT

[bar/°C]

STPC

STPC Condenser control set point

RBC Condenser control band differential

HYST Deactivation hysteresis (0.5bar/1°C)

MINV Minimum fan speed threshold

MAXV Maximum fan speed threshold

CPT Condensing pressure / temperature

With reference to the previous graph: o pressure/temperature values between STPC and STPC+RBC cause the modulation of the condenser fan speed with proportional control between the minimum and maximum voltage set o pressure/temperature values between STPC and STPC-OFFD cause the operation of the condenser fans at the minimum speed set o pressure/temperature values below STPC-OFFD cause the total shutdown of the fans and the analogue output signal is set to 0 Volt. A fixed hysteresis of 0.5 bar or 1.0°C is featured to prevent swings in the controlled value around the threshold STPC-OFFD from causing repeated starts and stops of the controlled devices.

In the activation phase with increasing pressure/temperature, as soon as the value exceeds the threshold STPC-OFFD, the fan is operated at maximum speed for a period equal to the set speed-up time.

If condenser control is based on the condenser temperature reading, when the liquid solenoid valve opens (refrigerant circuit activated), if the outside air temperature is above STPC-OFFD, the fan is operated at maximum speed for a period equal to the set speed-up time.

This function aims to prevent high pressure in the refrigerant circuit when starting the compressors, caused by an incorrect measurement of the condenser temperature due to the thermal inertia of the control probe.

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Evaporator fan control in heat pump operation

Speed

MAXV

HYST

MINV

RBC OFFD EPT

[bar/°C]

STPE

Fig. 7.p Condenser control devices and alarms

STPC Evaporator control set point

RBC Evaporator control band differential

HYST Deactivation hysteresis (0.5bar/1°C)

MINV Minimum fan speed threshold

MAXV Maximum fan speed threshold

CPT Evaporation pressure / temperature

In heat pump operation, the previous observations concerning cooling operation are still valid; the function simply operates in the diametrically opposite manner, given the different unit operating mode.

7.15 Prevent function

This function can be enabled in the manufacturer branch, and prevents the circuits from being shutdown due to a high pressure alarm. When the compressors are on, once reaching the set threshold, the capacity of the compressor is controlled until the pressure returns below or above the set point by a set differential, in cooling or heating mode respectively.

When the compressors are off, once having reached the set threshold, the fans are started at maximum speed until the pressure returns to acceptable values for the operation of the unit.

In units with tandem or trio hermetic compressors, the prevent function stops one of the active compressors, performing a rotation so as to shutdown a different device each time.

The compressor shutdown procedure is repeated whenever the pressure/temperature exceeds the set prevent threshold, or alternatively waits a fixed time of 10 seconds with high/low pressure before repeating the shutdown. The procedure stops when reaching the minimum number of devices on per circuit. In units with capacity-controlled semi-hermetic compressors, the prevent function activates the load steps, with the aim of preventing the compressor from shutting down.

7.16 Low noise function

This function is used to reduce the noise generated by the unit, due to the condenser/evaporator fans, at specific times.

Once the start and end times have been defined for the Low Noise function, the unit control set point will be modified in such period by a set value.

A set point is defined for cooling operation and another for heating operation, applied according to the set time band, in relation to the operating mode that is active on the unit.

Setting the same start and end times disables the function.

7.17 Start with hot condenser

This function only applies to air/water units in cooling operation with condenser control based on the temperature of the coil.

When activating a refrigerant circuit, if the temperature measured at the condenser is above 20.0°C (when starting, the condenser temperature corresponds to the outside air temperature), the condenser fans are forced on at the maximum speed for a time equal to the set forcing time when starting.

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7.18 Defrost control in air/water – Air/air units

Inputs used

• Condensing temperature 1

• Condensing temperature 2

• Outside air temperature

• Condensing pressure 1

• Condensing pressure 2

Parameters used

• Select values for start and end defrost control

• Type of defrost between circuits

• Select end defrost mode

• Start defrost threshold

• End defrost threshold

• Defrost activation delay

• Maximum defrost duration

• Minimum defrost duration

• Delay between defrosts on same circuit

• Delay between defrosts on different circuits

• Forced compressor off time at start and end defrost

• Delay in reversing refrigerant circuit for defrost

• Enable sliding defrost function

• Minimum start defrost set point allowed with sliding defrost function

• Outside temperature threshold to start sliding defrost action

• Outside temperature threshold for maximum sliding defrost action

• Enable manual defrost actuator

• Manual defrost on circuit 1

• Manual defrost on circuit 2

Outputs used

• Compressor 1 circuit 1

Winding A compressor 1

• Compressor 2 circuit 1

Winding B compressor 1

• Compressor 3 circuit 1

• Compressor 1 circuit 2

Winding A compressor 2

• Compressor 2 circuit 2

Winding B compressor 2

• Compressor 3 circuit 2

• 4-way reversing valve circuit 1

• 4-way reversing valve circuit 2

• Fan 1 circuit 1

• Fan 2 circuit 1

• Fan 2 circuit 1 (single condenser)

• Fan 1 circuit 2 (2 condensers)

• Fan 2 circuit 2

• Analogue output 1 status

Condenser fans circuit 1

• Analogue output 2 status

Condenser fans circuit 2

[-d-]

[d3]

[d4]

[d5]

[d6]

[-d-]

[d1]

[d2]

[-d-]

[B1]

[B2]

[B7]

[B3]

[B4]

[B29]

[B30]

[B31]

[B34]

[B35]

[B36]

[B41]

[B42]

[B32]

[B31]

[B37]

[B36]

[B43]

[B44]

7.19 Types of defrost

Simultaneous

Only one circuit needs a defrost request (temperature/pressure below the start defrost threshold) for all the circuits to be forced to defrost. The circuits which do not require defrosting (temperature/pressure above the end defrost threshold) stop and go to standby; as soon as all the circuits end their defrost cycle the compressors can start again in heat pump operation.

Separate

The circuits are defrosted separately by the circuits. The first circuit that requires defrosting starts the procedure, while the others wait for the end defrost (heat pump operation) before reversing the cycle and sequentially performing the defrost.

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7.20 Defrosting a circuit with time / temperature control

CPT [bar/ºC]

DefrOffTHR

DefrOnTHR t [s]

Δt DefrAct

DefrOffTHR End

DefrOnTHR Start defrost threshold pressure/temperature

Δt Duration of the pressure/temperature inside the defrost activation zone active t Time

Fig. 7-1 Defrost control

7.20.1 Description of operation

If the temperature/pressure of a coil remains continuously below the start defrost threshold for the defrost delay time set, the circuit in question will start a defrost cycle:

• the compressor/compressors in the circuit stop for a set time

• the refrigerant circuit is reversed using the 4-way valve after a set delay

• the fan in question is switched off (if the pressure probes are present, the high condensing pressure prevention function will be active)

If the compressor off time at start and end defrost is set to 0, then the 4-way reversing valve is switched with the compressors on.

The circuit exits the defrost cycle if the temperature/pressure exceeds the end defrost threshold, or after a maximum time, if the defrost cycle exceeds the maximum set threshold time.

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7.20.2 Start defrost threshold automatic (sliding defrost)

In the event of very low outside temperatures, the pressure or temperature of the evaporator (outdoor exchanger) may fall below the start defrost threshold, even when there is no actual frost on the heat exchanger. In this case, a procedure has been implemented for automatically calculating the start defrost threshold, based on the outside air temperature probe reading.

The purpose of this function is to avoid unneeded defrosts due to outside conditions that are nonetheless favourable for heat pump operation, despite the low air temperature.

The user can thus set, in addition to the start defrost set point, an even lower threshold can be set that corresponds to the minimum temperature or pressure value for performing the defrost, thus avoiding the unit stopping due to low pressure. Within this interval, the start defrost threshold varies depending on the outside temperature, compensated proportionally. In this case too, a start compensation threshold and a limit threshold (minimum allowed) are used to lower the start defrost threshold within acceptable values and according to a certain proportionality.

CPT [bar/ºC]

DefrOnTHR

MinDOnTHR

Fig. 7-2 Sliding defrost

MinSDOnTHR MaxSDOffTHR

temperature

DefrOnTHR Start defrost threshold

MinDOnTHR Minimum start defrost threshold

MinSDOnTHR Sliding Defrost start threshold

MaxSDOffTHR Sliding Defrost limit threshold

7.20.3 Start and end defrost mode

Two distinct start and end defrost modes can be defined by suitably combining the settings of two parameters.

In particular, the values that determine the start and end defrost can be selected: o

Start-end by temperature: condenser temperature probe readings o

Start-end by pressure: condensing pressure probe readings o

Start by pressure – end by temperature: condenser temperature probe reading for start defrost and fan control throughout the defrost phase, condenser temperature probe reading to end the procedure

The end defrost can also be selected as follows: o

Time : the defrost only ends when reaching the maximum time o

Pressure/temperature : the defrost ends when reaching the set end defrost thresholds, or alternatively after the maximum time

7.20.4 Dripping

The coil dripping phase is the period in which, with the refrigerant circuit in heating mode and the compressors off, the heat of the accumulated on the exchanger is exploited to remove any condensate.

This phase occurs at the end of the defrost cycle, from when the compressors stop to when the 4-way reversing valve switches to heat pump mode.

7.21 Defrosting a circuit with control from external contact

The activation / deactivation of the defrost cycle depends on the status an external contact, controlled by a differential pressure switch or outside temperature thermostat for the circuit in question.

For this purpose, the analogue input used to measure the temperature of the condenser coil will be used as a digital input for reading of the status of the pressure switch.

A voltage-free contact is thus required, which, if open, starts the defrost procedure, vice-versa if closed.

For this type of procedure the duration is also monitored and compared against the maximum time set.

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7.22 Manual defrost

A circuit can also be defrosted manually using of a specific parameter with manufacturer password protection.

Based on the type of defrost configured (simultaneous or separate), the circuits can be defrosted at the same time or separately.

The manual defrost follows the settings of the normal defrost, as described in the previous paragraphs.

7.23 Defrost control ON REVERSE-CYCLE water/water units

Inputs used

• Condensing temperature 1

• Condensing temperature 2

• Outside air temperature

• Condensing pressure 1

• Condensing pressure 2

Parameters used

• Select values for start and end defrost control

• Type of defrost between circuits

• Select end defrost mode

• Start defrost threshold

• End defrost threshold

• Defrost activation delay

• Maximum defrost duration

• Minimum defrost duration

• Delay between defrosts on same circuit

• Delay between defrosts on different circuits

• Enable sliding defrost function

• Minimum start defrost set point allowed with sliding defrost function

• Outside temperature threshold to start sliding defrost action

• Outside temperature threshold for maximum sliding defrost action

• Enable manual defrost actuator

• Manual defrost on circuit 1

• Manual defrost on circuit 2

Outputs used

• Defrost heater circuit 1

• Defrost heater circuit 2

[B1]

[B2]

[B7]

[B3]

[B4]

[-d-]

[d1]

[d2]

[-d-]

[d3]

[d4]

[d5]

[d6]

[-d-]

[B32]

[B37]

Operation

On reverse-cycle water/water units, the defrost is performed using electric heaters immersed in the flow of water in the cooling coil.

7.24 Activating a defrost cycle

A configuration parameter is available for setting the measurement used to control the activation of the defrost, temperature or pressure; the threshold below which the defrost procedure starts then needs to be set.

The temperature or pressure must remain below this threshold for a continuous time equal to set defrost activation delay before the procedure can start.

In the event of consecutive defrosts on the same refrigerant circuit, the times between defrosts on the same circuit and between different circuits are also monitored, the latter applied only in the event of separate defrosts.

7.25 Running a defrost

The defrost phase is performed by switching off the compressors and activating the defrost heaters with the circulating pump on. The duration of the defrost cycle is monitored from the activation of the heaters and compared against the minimum threshold set; irrespective of pressure or temperature values measured, the defrost cannot end before the set time.

7.26 Ending a defrost cycle

Two parameters are available for setting the type of measurement controlled and the end defrost mode.

Based on the selection, pressure or temperature, a threshold must be set above which the defrost procedure ends.

The end defrost can be selected by maximum time or maximum time and temperature/pressure; in the latter mode the duration of the defrost cycle is monitored and compared against the maximum value set, once the maximum time threshold is exceeded the defrost ends immediately.

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8. Map of outputs

8.1 Air / air units

8.1.1 Cooling only

DIGITAL INPUTS

ID 1 Serious alarm

ID 2

ID 3

ID 4

ID 5

ID 6

ID 7

ID 8

ID 9

Air flow switch

Remote ON/OFF

Main fan thermal overload

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

Compressor 2 thermal overload circuit 1

Condenser fan 1 thermal overload circuit 1

ID10

ID11

ID12

ID13

Low pressure switch circuit 2

High pressure switch circuit 2

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

ID14 Condenser fan 1 thermal overload circuit 2

ID15

ID16

ID17

Compressor 3 thermal overload circuit 1 / Condenser fan 2 thermal overload circuit 1

Compressor 3 thermal overload circuit 2 / Condenser fan 2 thermal overload circuit 2

ID18

ANALOGUE INPUTS

B1 Condensing temperature circuit 1/ Evaporation pressure circuit 1/

External water storage temperature

Condensing temperature circuit 2 / Evaporation pressure circuit 2

Condensing pressure circuit 1

Condensing pressure circuit 2

B6 Air outlet temp.

B10

DIGITAL OUTPUTS

NO1

NO2

Compressor 1 circuit 1 / Winding A compressor 1 circuit 1

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

NO3

Part load compressor 1 circuit 1

Liquid solenoid circuit 1 / Compressor 3 circuit 1/

Part load compressor 1 circuit 1 / Condenser fan 2 circuit 1

NO 4

NO 5

NO 6

NO 7

NO 8

NO 9

Condenser fan 1 circuit 1

Circulating fan

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 / Compressor 3 circuit 2/

Compressor 1 capacity control circuit 2 / Condenser fan 2 circuit 2

Condenser fan 1 circuit 2 / Condenser fan 2 circuit 1

NO11 Antifreeze heater circuit 1

NO12 Antifreeze heater circuit 2

NO13

NO14

ANALOGUE OUTPUTS

Y1 0 to 10 V condenser fan inverter circuit 1

0 to 10 V condenser fan inverter circuit 2

PWM condenser fan inverter circuit 1

Y4 PWM condenser fan inverter circuit 2

Important:

If using a single condenser, with 2 fans configured and 3 compressors configured, in the event of step control, the dedicated outputs will be number 4 and number 9.

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8.1.2 Cooling + Heat pump

DIGITAL INPUTS

ID 1

ID 2

ID 3

Serious alarm

Air flow switch

Remote ON/OFF

ID 4

ID 5

ID 6

ID 7

ID 8

ID 9

ID10

ID11

Main fan thermal overload

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

Compressor 2 thermal overload circuit 1

Condenser fan 1 thermal overload circuit 1

Low pressure switch circuit 2

High pressure switch circuit 2

ID12

ID13

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

ID14 Condenser fan 1 thermal overload circuit 2

ID15

ID16 Compressor 3 thermal overload circuit 1 / Condenser fan 2 thermal overload circuit 1

ID17 Compressor 3 thermal overload circuit 2 / Condenser fan 2 thermal overload circuit 2

ID18

ANALOGUE INPUTS

B1 Condensing temperature circuit 1/ Evaporation pressure circuit 1/

External water storage temperature

Condensing temperature circuit 2 / Evaporation pressure circuit 2

Condensing pressure circuit 1

Condensing pressure circuit 2

B6 Air outlet temp.

B10

DIGITAL OUTPUTS

NO1

NO2

NO3

Compressor 1 circuit 1 / Winding A compressor 1 circuit 1

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

Part load compressor 1 circuit 1

Liquid solenoid circuit 1 / Compressor 3 circuit 1/

Part load compressor 1 circuit 1 (if PART-WINDING enabled) / condenser fan 2 circuit 1

NO 4

NO 5

NO 6

NO 7

NO 8

NO 9

Condenser fan 1 circuit 1

Circulating fan

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 / Compressor 3 circuit 2/

Compressor 1 capacity control circuit 2 Condenser fan 2 circuit 2

Condenser fan 1 circuit 2/

Condenser fan 2 circuit 1

NO11

NO12

Antifreeze heater circuit 1

Antifreeze heater circuit 2/

NO13

NO14

Support heater in heating operation

4-way valve circuit 1

4-way valve circuit 2

ANALOGUE OUTPUTS

0 to 10 V condenser fan inverter circuit 1

0 to 10 V condenser fan inverter circuit 2

PWM condenser fan inverter circuit 1

PWM condenser fan inverter circuit 2

Important:

If using a single condenser, with 2 fans configured and 3 compressors configured, in the event of step control, the dedicated outputs will be number 4 and number 9.

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8.2 Air / water units

8.2.1 Cooling only

DIGITAL INPUTS

ID 1

ID 2

Serious alarm

Evaporator flow switch

ID 3

ID 4

ID 5

ID 6

ID 7

ID 8

ID 9

ID10

ID11

Remote ON/OFF

Main pump thermal overload

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

Compressor 2 thermal overload circuit 1

Condenser fan 1 thermal overload circuit 1

Low pressure switch circuit 2

High pressure switch circuit 2

ID12

ID13

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

ID14 Condenser fan 1 thermal overload circuit 2

ID15

ID16

ID17

ID18

Compressor 3 thermal overload circuit 1 / Condenser fan 2 thermal overload circuit 1

Compressor 3 thermal overload circuit 2 /Condenser fan 2 thermal overload circuit 2

Evaporator pump 2 thermal overload

ANALOGUE INPUTS

B1 Condensing temperature circuit 1/Evaporation pressure circuit 1/

External water storage temperature

Condensing temperature circuit 2 /Evaporation pressure circuit 2

Condensing pressure circuit 1

Condensing pressure circuit 2

Evaporator water inlet temperature

Water outlet temperature

B10

Evaporator 1 water outlet temperature

Evaporator 2 water outlet temperature

NO3

NO 4

NO 5

DIGITAL OUTPUTS

NO1

NO2

Compressor 1 circuit 1 / Winding A compressor 1 circuit 1

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

Part load compressor 1 circuit 1

Liquid solenoid circuit 1 / Compressor 3 circuit 1/

Part load compressor 1 circuit 1 / Condenser fan 2 circuit 1

Condenser fan 1 circuit 1

Pump

NO 6

NO 7

NO 8

NO 9

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 / Compressor 3 circuit 2/

Compressor 1 capacity control circuit 2 / Condenser fan 2 circuit 2

Condenser fan 1 circuit 2/ Condenser fan 2 circuit 1

NO11

NO12

Antifreeze heater circuit 1

Antifreeze heater circuit 2

NO13

NO14

ANALOGUE OUTPUTS

0 to 10 V condenser fan inverter circuit 1

0 to 10 V condenser fan inverter circuit 2

PWM condenser fan inverter circuit 1

Y4 PWM condenser fan inverter circuit 2

Important:

If using a single condenser, with 2 fans configured and 3 compressors configured, in the event of step control, the dedicated outputs will be number 4 and number 9.

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ID 6

ID 7

ID 8

ID 9

ID10

ID11

ID12

ID13

ID14

8.2.2 Cooling + Heat pump

DIGITAL INPUTS

ID 1 Serious alarm

ID 2

ID 3

ID 4

ID 5

Evaporator flow switch

Remote ON/OFF

Main pump thermal overload

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

Compressor 2 thermal overload circuit 1

Condenser fan 1 thermal overload circuit 1

Low pressure switch circuit 2

High pressure switch circuit 2

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

Condenser fan 1 thermal overload circuit 2

ID16

ID17

ID18

Compressor 3 thermal overload circuit 1 / Condenser fan 2 thermal overload circuit 1

Compressor 3 thermal overload circuit 2 /Condenser fan 2 thermal overload circuit 2

Evaporator pump 2 thermal overload

ANALOGUE INPUTS

B1 Condensing temperature circuit 1/Evaporation pressure circuit 1/

External water storage temperature

Condensing temperature circuit 2 /Evaporation pressure circuit 2

Condensing pressure circuit 1

Condensing pressure circuit 2

Evaporator water inlet temperature

Water outlet temperature

B10

Evaporator 1 water outlet temperature

Evaporator 2 water outlet temperature

NO2

DIGITAL OUTPUTS

NO1 Compressor 1 circuit 1 / Winding A compressor 1 circuit 1

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

Part load compressor 1 circuit 1

NO3 Liquid solenoid circuit 1 / Compressor 3 circuit 1/

Part load compressor 1 circuit 1 condenser fan 2 circuit 1

NO 4

NO 5

NO 6

NO 7

NO 8

NO 9

Condenser fan 1 circuit 1

Pump

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 / Compressor 3 circuit 2/

Compressor 1 capacity control circuit 2Condenser fan 2 circuit 2 /

Pump 2

Condenser fan 1 circuit 2 / Condenser fan 2 circuit 1

NO11

NO12

NO13

NO14

Antifreeze heater circuit 1

Antifreeze heater circuit 2 / Support heater in heating operation

4-way valve circuit 1

4-way valve circuit 2

ANALOGUE OUTPUTS

0 to 10 V condenser fan inverter circuit 1

0 to 10 V condenser fan inverter circuit 2

PWM condenser fan inverter circuit 1

Y4 PWM condenser fan inverter circuit 2

Important:

If using a single condenser, with 2 fans configured and 3 compressors configured, in the event of step control, the dedicated outputs will be number 4 and number 9.

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8.3 Water / water units

8.3.1 Cooling only

DIGITAL INPUTS

ID 1 Serious alarm

ID 2 Evaporator flow switch

ID 3

ID 4

ID 5

ID 6

ID 7

Remote ON/OFF

Main pump thermal overload

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

ID 8

ID 9

ID10

ID11

Compressor 2 thermal overload circuit 1

Condenser pump thermal overload

Low pressure switch circuit 2

High pressure switch circuit 2

ID12

ID13

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

ID14 Condenser flow switch

ID15

ID16

ID17

Compressor 3 thermal overload circuit 1

Compressor 3 thermal overload circuit 2

ID18 Evaporator pump 2 thermal overload

ANALOGUE INPUTS

B1 Condensing temperature circuit 1/Evaporation pressure circuit 1

Condensing temperature circuit 2 /Evaporation pressure circuit 2

Condensing pressure circuit 1

Condensing pressure circuit 2

Evaporator water inlet temperature

Water outlet temperature

B10

Evaporator 1 water outlet temperature

Evaporator 2 water outlet temperature

NO2

DIGITAL OUTPUTS

NO1 Compressor 1 circuit 1 / Winding A compressor 1 circuit 1

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

Part load compressor 1 circuit 1

NO3

NO 4

NO 5

NO 6

NO 7

NO 8

Liquid solenoid circuit 1 / Compressor 3 circuit 1/

Part load compressor 1 circuit 1

Pump

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 / Compressor 3 circuit 2 /

NO 9

Compressor 1 capacity control circuit 2 / Pump 2

NO11 Antifreeze heater circuit 1

NO12 Antifreeze heater circuit 2

NO13

ANALOGUE OUTPUTS

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8.3.2 Cooling + Heat pump with reversal on the water circuit

DIGITAL INPUTS

ID 1

ID 2

ID 3

Serious alarm

Evaporator flow switch

Remote ON/OFF

ID 4

ID 5

ID 6

ID 7

ID 8

ID 9

ID10

ID11

ID12

ID13

ID14

Main pump thermal overload

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

Compressor 2 thermal overload circuit 1

Condenser pump thermal overload

Low pressure switch circuit 2

High pressure switch circuit 2

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

Condenser flow switch

ID16

ID17

ID18

Compressor 3 thermal overload circuit 1

Compressor 3 thermal overload circuit 2

Evaporator pump 2 thermal overload

ANALOGUE INPUTS

B1 Condenser inlet temperature

Condenser outlet temperature

Condensing pressure circuit 1

Condensing pressure circuit 2

Evaporator water inlet temperature

Water outlet temperature

B10

Evaporator 1 water outlet temperature

Evaporator 2 water outlet temperature

DIGITAL OUTPUTS

NO1 Compressor 1 circuit 1 /

Winding A compressor 1 circuit 1

NO2

NO3

NO 4

NO 5

NO 6

NO 7

NO 8

NO 9

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

Part load compressor 1 circuit 1

Liquid solenoid circuit 1 / Compressor 3 circuit 1

Part load compressor 1 circuit 1

Pump

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 / Compressor 3 circuit 2/

Compressor 1 capacity control circuit 2 / Pump 2

NO11

NO12

Antifreeze heater circuit 1

Antifreeze heater circuit 2 / Support heater in heating operation

ANALOGUE OUTPUTS

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8.3.3 Cooling + Heat pump with reversal on the refrigerant circuit

DIGITAL INPUTS

ID 1

ID 2

ID 3

Serious alarm

Evaporator flow switch

Remote ON/OFF

ID 4

ID 5

ID 6

ID 7

ID 8

ID 9

ID10

ID11

ID12

ID13

ID14

Main pump thermal overload

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

Compressor 2 thermal overload circuit 1

Condenser pump thermal overload

Low pressure switch circuit 2

High pressure switch circuit 2

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

Condenser flow switch

ID16

ID17

ID18

Compressor 3 thermal overload circuit 1

Compressor 3 thermal overload circuit 2

Evaporator pump 2 thermal overload

ANALOGUE INPUTS

B1 Condensing temperature circuit 1/Evaporation pressure circuit 1

Condensing temperature circuit 2 /Evaporation pressure circuit 2

Condensing pressure circuit 1

Condensing pressure circuit 2

Evaporator water inlet temperature

Water outlet temperature

B10

Evaporator 1 water outlet temperature

Evaporator 2 water outlet temperature

NO2

DIGITAL OUTPUTS

NO1 Compressor 1 circuit 1 / Winding A compressor 1 circuit 1

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

Part load compressor 1 circuit 1

NO3 Liquid solenoid circuit 1 / Compressor 3 circuit 1

Part load compressor 1 circuit 1

NO 4

NO 5

NO 6

NO 7

NO 8

NO 9

Defrost heater circuit 1

Pump

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 /Compressor 3 circuit 2/

Compressor 1 capacity control circuit 2 Pump 2

Defrost heater circuit 2

NO11

NO12

Antifreeze heater circuit 1

Antifreeze heater circuit 2 /

Support heater in heating operation

ANALOGUE OUTPUTS

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8.4 Air-cooled condensing units

8.4.1 Cooling only

DIGITAL INPUTS

ID 1

ID 2

ID 3

Serious alarm / Remote ON/OFF (with digital controls). Serious alarm (with analogue control)

Compressor 1 control (with digital controls) Not used (with analogue control)

Compressor 2 control (with digital controls) Remote ON/OFF (with analogue control)

ID 4

ID 5

ID 6

ID 7

Compressor 3 control (with tandem circuits and with digital controls)

Compressor 3 and 4 control (with trio circuits and with digital controls)

Not used (with analogue control)

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

ID 8

ID 9

ID10

ID11

Compressor 2 thermal overload circuit 1

Condenser fan 1 thermal overload circuit 1

Low pressure switch circuit 2

High pressure switch circuit 2

ID12

ID13

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

ID14 Condenser fan 1 thermal overload circuit 2

ID15

ID16

ID17

ID18

Compressor 3 thermal overload circuit 1 / Condenser fan 2 thermal overload circuit 1

Compressor 3 thermal overload circuit 2 /Condenser fan 2 thermal overload circuit 2

Compressor 4 control (with tandem circuits and with digital controls)

Compressor 5 and 6 control (with trio circuits and with digital controls)

Not used (with analogue control)

ANALOGUE INPUTS

Condensing temperature circuit 1/Evaporation pressure circuit 1

Condensing temperature circuit 2 /Evaporation pressure circuit 2

Condensing pressure circuit 1

Condensing pressure circuit 2

B10

DIGITAL OUTPUTS

NO1 Compressor 1 circuit 1 / Winding A compressor 1 circuit 1

NO2

NO3

NO 4

NO 5

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

Part load compressor 1 circuit 1

Liquid solenoid circuit 1 / Compressor 3 circuit 1/

Part load compressor 1 circuit 1 / Condenser fan 2 circuit 1

Condenser fan 1 circuit 1

NO 6

NO 7

NO 8

NO 9

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 / Compressor 3 circuit 2/

Compressor 1 capacity control circuit 2 / Condenser fan 2 circuit 2

Condenser fan 1 circuit 2 / Condenser fan 2 circuit 1

NO11

NO12

NO13

NO14

ANALOGUE OUTPUTS

0 to 10 V condenser fan inverter circuit 1

0 to 10 V condenser fan inverter circuit 2

PWM condenser fan inverter circuit 1

PWM condenser fan inverter circuit 2

Important:

If using a single condenser, with 2 fans configured and 3 compressors configured, in the event of step control, the dedicated outputs will be number 4 and number 9.

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ID11

ID12

ID13

ID14

ID15

ID16

ID17

ID18

ID 5

ID 6

ID 7

ID 8

ID 9

ID10

8.4.2 Cooling + Heat pump

DIGITAL INPUTS

ID 1

ID 2

ID 3

ID 4

Serious alarm / Remote ON/OFF (with digital controls) Serious alarm (with analogue control)

Compressor 1 control (with digital controls) Not used (with analogue control)

Compressor 2 control (with digital controls) Remote ON/OFF (with analogue control)

Compressor 3 control (with tandem circuits and with digital controls)

Compressor 3 and 4 control (with trio circuits and with digital controls)

Not used (with analogue control)

Low pressure switch circuit 1

High pressure switch circuit 1

Compressor 1 thermal overload circuit 1

Compressor 2 thermal overload circuit 1

Condenser fan 1 thermal overload circuit 1

Low pressure switch circuit 2

High pressure switch circuit 2

Compressor 1 thermal overload circuit 2

Compressor 2 thermal overload circuit 2

Condenser fan 1 thermal overload circuit 2

Cooling / heating selection

Compressor 3 thermal overload circuit 1 / Condenser fan 2 thermal overload circuit 1

Compressor 3 thermal overload circuit 2 /Condenser fan 2 thermal overload circuit 2

Compressor 4 control (with tandem circuits and with digital controls)

Compressor 5 and 6 control (with trio circuits and with digital controls)

Not used (with analogue control)

ANALOGUE INPUTS

Condensing temperature circuit 1/Evaporation pressure circuit 1

Condensing temperature circuit 2 /Evaporation pressure circuit 2

Condensing pressure circuit 1

Condensing pressure circuit 2

B8 Remote set pointl

B10

DIGITAL OUTPUTS

NO1

NO2

NO3

NO 4

NO 5

NO 6

NO 7

NO 8

Compressor 1 circuit 1 / Winding A compressor 1 circuit 1

Compressor 2 circuit 1 / Winding B compressor 1 circuit 1 /

Part load compressor 1 circuit 1

Liquid solenoid circuit 1 / Compressor 3 circuit 1/

Part load compressor 1 circuit 1 condenser fan 2 circuit 1

Condenser fan 1 circuit 1

Compressor 1 circuit 2 / Winding A compressor 1 circuit 2

Compressor 2 circuit 2 / Winding B compressor 1 circuit 2 /

Compressor 1 capacity control circuit 2

Liquid solenoid circuit 2 / Compressor 3 circuit 2/

Compressor 1 capacity control circuit 2 Condenser fan 2 circuit 2

NO 9 Condenser fan 1 circuit 2 / Condenser fan 2 circuit 1

NO10 General

NO11 alarm

NO12

NO13

NO14

4-way valve circuit 1

4-way valve circuit 2

ANALOGUE OUTPUTS

0 to 10 V condenser fan inverter circuit 1

0 to 10 V condenser fan inverter circuit 2

PWM condenser fan inverter circuit 1

PWM condenser fan inverter circuit 2

Important:

If using a single condenser, with 2 fans configured and 3 compressors configured, in the event of step control, the dedicated outputs will be number 4 and number 9.

Note

Part Winding management has been added to all unit configurations, together with the management of semi hermetic compressors with a single unloader valve.

+030220431 rel 1.6 16/11/2010 72

µC3

9. ALARMS

9.1 Table of alarms

The following table describes all the alarms managed by the unit, indicating the type of devices disabled for each.

Code: this is the alarm ID code, which is shown cyclically on the PLD display

Description: this is the description of the type of alarm activated, as shown in the alarm log on the PGD0 display

Type: this indicates the source of the alarm

Reset:

DIN = digital input

AIN = analogue input

SYS = system

DRV = electronic expansion valve driver this indicates the type of reset featured for the alarm

A = automatic

M = manual

S = selectable

Compressors Fans Notes

A001 Antifreeze alarm 1

A002 Antifreeze alarm 2

A003 Evaporator pump thermal overload

A004 Condenser pump thermal overload

A005 Evaporator flow switch alarm

A006 Condenser flow switch alarm

A007 Main fan thermal overload

A008 Evaporator pump 2 thermal overload

A009 Low pressure circ.1 (Pressure switch)

A010 Low pressure circ. 2 (Pressure switch)

A011 High pressure circ.1 (Pressure switch)

A012 High pressure circ. 2 (Pressure switch)

A013 Compressor 1 thermal overload circuit 1

A014 Compressor 2 thermal overload circuit 1

A015 Compressor 3 thermal overload circuit 1

A016 Compressor 1 thermal overload circuit 2

A017 Compressor 2 thermal overload circuit 2

A018 Compressor 3 thermal overload circuit 2

A019 Fan 1 thermal overload circuit 1

A020 Fan 2 thermal overload circuit 1

A021 Fan 1 thermal overload circuit 2

A022 Fan 2 thermal overload circuit 2

A023 High pressure circ. 1 (Transducer)

A024 High pressure circ. 2 (Transducer)

A025 Probe B1 faulty or disconnected

A026 Probe B2 faulty or disconnected

A027 Probe B3 faulty or disconnected

A028 Probe B4 faulty or disconnected

A029 Probe B5 faulty or disconnected

A030 Probe B6 faulty or disconnected

A031 Probe B7 faulty or disconnected

A032 Probe B8 faulty or disconnected

A033 Probe B9 faulty or disconnected

A034 Probe B10 faulty or disconnected

A035 Fan/main pump operating hour threshold

A036

Compressor 1 operating hour threshold circuit 1

A037

A038

A039

Compressor 2 operating hour threshold circuit 1

Compressor 3 operating hour threshold circuit 1

Compressor 1 operating hour threshold circuit 2

A040

A041

Compressor 2 operating hour threshold circuit 2

Compressor 3 operating hour threshold circuit 2

A042 Main pump 2 operating hour threshold

DIN

DIN M

AIN S

DIN

Start

Steady operation

Start

Steady operation

DIN

DIN S

AIN M

Start

Steady operation

Start

Steady operation

AIN M 60s

AIN M

SYS M

60s

A043 Clock board broken or not connected SYS (approx.)

(*)

X X

(*)

If alarm on all the pumps

(*)

X X

(*) alarm

(*)

If alarm on all the pumps

(*)

If alarm on all the fans

(*)

If alarm on all the fans

(*)

If alarm on all the fans

(*)

If alarm on all the fans

(*)

If high pressure prevent disabled

(*)

If high pressure prevent disabled

(*)

Operating mode can be configured if used as condensing temperature

(*)

Operating mode can be configured if used as condensing temperature

(*)

Operating mode can be configured

(*)

In condensing units if used as control input

Disables all the functions relating to the system clock

+030220431 rel 1.6 16/11/2010 73

A044

A045

Low pressure circ. 1 (Transducer)

Low pressure circ. 2 (Transducer)

AIN

A046

A047

A048 Serious alarm from digital input

A059

Low room temperature alarm

Condenser pump operating hour threshold

Test SMS on alarm sent successfully

AIN M

SYS

DIN

SYS

Start(*)

Steady operation

Start(*)

Steady operation

A060 Driver 1 EEPROM error DRV M /

A061 Driver 2 EEPROM error DRV M /

A062 Driver 3 EEPROM error

A063 Driver 4 EEPROM error

A064 Driver 1 EEV motor error

A065 Driver 2 EEV motor error

DRV

10s

A066 Driver 3 EEV motor error DRV

A067 Driver 4 EEV motor error

A068 Driver 1 MOP timeout

A069 Driver 2 MOP timeout

A070 Driver 3 MOP timeout

A071 Driver 4 MOP timeout

A072 Driver 1 LOP timeout

A073 Driver 2 LOP timeout

A074 Driver 3 LOP timeout

A075 Driver 4 LOP timeout

A076 Driver 1 low superheat

A077 Driver 2 low superheat

A078 Driver 3 low superheat

A079 Driver 4 low superheat

A080 Driver 1 EEV not closed when power OFF DRV

DRV

A081 Driver 2 EEV not closed when power OFF DRV

A082 Driver 3 EEV not closed when power OFF DRV

A083 Driver 4 EEV not closed when power OFF DRV

A084 Driver 1 high superheat

A085 Driver 2 high superheat

A086 Driver 3 high superheat

A087 Driver 4 high superheat

A088 Driver 1 probe S1 fault

A089 Driver 2 probe S1 fault

A090 Driver 3 probe S1 fault

A091 Driver 4 probe S1 fault

A092 Driver 1 probe S2 fault

A093 Driver 2 probe S2 fault

A094 Driver 3 probe S2 fault

A095 Driver 4 probe S2 fault

A096 Driver 1 probe S3 fault

A097 Driver 2 probe S3 fault

A098 Driver 3 probe S3 fault

A099 Driver 4 probe S3 fault

A100 Driver 1 Go Ahead request

DRV

A101 Driver 2 Go Ahead request

A102 Driver 3 Go Ahead request

A103 Driver 4 Go Ahead request

A104 Driver 1 LAN disconnected

A105 Driver 2 LAN disconnected

A106 Driver 3 LAN disconnected

A107 Driver 4 LAN disconnected

A108 Driver 1 autosetup not completed

A109 Driver 2 autosetup not completed

A110 Driver 3 autosetup not completed

A111 Driver 4 autosetup not completed

DRV

SYS

Settable

10s

Settable

30s

+030220431 rel 1.6 16/11/2010 74

X chiller- heat pump- defrost

µC3

(*)Different delays and thresholds for

X X

X from starting from starting from starting

X from starting

Prevents the corresponding circuit from starting

Stops the corresponding circuit

Prevents the corresponding circuit from starting

Stops the corresponding circuit

Prevents the corresponding circuit from starting

Stops the corresponding circuit

9.2 Type of alarm reset

The reset mode can be set for some of the alarms listed in the table, choosing between automatic and manual: o

Compressor thermal overload o

Fan thermal overload o

Low pressure from transducer and/or pressure switch o

High pressure from transducer and/or pressure switch

If automatic reset is selected, a maximum number of events with automatic reset and maximum period of validity can be set, with the time counted from the activation of the first alarm.

If after this period the maximum number of repeats of a certain event is not reached, the timer is reset and the next alarm will start a new count.

If the maximum number N of repeats set is reached within the set time, then the next event (N+1) will be with manual reset, requiring the operator to intervene to restore the operation of the unit.

If manual reset is set, then each alarm event requires the intervention of the operator to restore the operation of the unit.

9.3 Alarm log

The alarm log is included to save the fundamental unit operating values in response to certain events.

µC3

9.4 Flow switch alarm

Inputs used

• Air flow switch (air/air units)

Evaporator water flow switch

Parameters used

[B12]

• Number of evaporator pumps

• Evaporator flow switch alarm delay at start-up

• Evaporator flow switch alarm delay in steady operation

Outputs used

[-H-]

[P1]

[P2]

• Evaporator pump 1

• Evaporator pump 2

• Generic alarm

[B33]

[B36]

[B38]

The evaporator flow switch alarm disables the operation of the unit if there is no water or air in the main exchanger, so as to prevent dangerous operating conditions with the compressors on and no water or air flow.

In Air/water or Water/water units, if control of the second circulating pump is enabled, as the flow switch alarm will cause the rotation of the pump in operation, the program will attempt to recover the situation by starting the reserve device.

The alarm management features two delay times before activation:

• when the water circuit is first started

• when the unit is in steady operation

The activation of the reserve pump to restore an alarm situation resets the delay in steady operation, after which any new alarm condition will cause the unit to shut down due to a serious water flow problem.

In general, with the reserve circulating pump enabled, the flow switch alarm can be activated two times in a row, after which the unit is switched off due to the alarm.

+030220431 rel 1.6 16/11/2010 75

µC3

9.5 Circulating pump thermal overload alarm

Inputs used

• Evaporator pump 1 thermal overload

• Evaporator pump 2 thermal overload

Parameters used

• Number evaporator pumps

Outputs used

[B14]

[B28]

[-H-]

• Evaporator pump 1

• Evaporator pump 2

• Generic alarm

[B33]

[B36]

[B38]

The circulating pump thermal overload alarm disables the operation of the device, causing the unit to shutdown immediately, so as to prevent dangerous operating conditions with the compressors on and no water flow.

If control of the second circulating pump is enabled, as the thermal alarm will cause the rotation of the pump in operation, the program will attempt to recover the situation by starting the reserve device. Should there also be a thermal overload alarm on this device too, the unit will shutdown immediately.

In general, if in response to a thermal overload alarm a different pump cannot be started as support, the unit is switched off.

9.6 Condenser fan thermal overload alarm

Inputs used

• Condenser fan 1 thermal overload circuit 1

• Condenser fan 2 thermal overload circuit 1 (1 condenser)

• Condenser fan 2 thermal overload circuit 1 (2 condensers, 4 fans)

• Condenser fan 1 thermal overload circuit 2 (2 condensers)

• Condenser fan 2 thermal overload circuit 2 (2 condensers, 4 fans)

Parameters used

[B19]

[B24]

[B26]

[B24]

[B27]

• Number of condensers installed

• Total number of fans installed

Outputs used

• Fan 1 circuit 1

• Fan 2 circuit 1

• Fan 2 circuit 1 (single condenser)

• Fan 1 circuit 2 (2 condensers)

• Fan 2 circuit 2

[-F-]

[B32]

[B31]

[B37]

[B36]

The purpose of an individual thermal overload alarm is to prevent the operation of the corresponding device.

The alarm affects the operation of the refrigerant circuit in different ways.

In general, if in a certain refrigerant circuit, due to one or more alarms the condenser fans are no longer available, then the compressors are also switched off, thus stopping the circuit, so as to avoid dangerous situations of high pressure in the condenser.

9.7 Antifreeze alarm

The activation of the antifreeze alarm is based on a set point and differential; if the water temperature falls below the set point, the compressors are stopped immediately, while the pump remains on to prevent the formation of ice.

The devices can only be restarted if the water temperature rises above the alarm set point + differential.

The set point for the antifreeze alarm is limited by minimum and maximum values, protected by manufacturer password, so as to prevent the values being set at dangerous extreme unit operating conditions.

The alarm reset can be defined as manual or automatic:

Manual reset: the activation of the antifreeze protection is delayed by a set time (in minutes) from when the unit starts, to allow the unit time to move the water and reach steady operation; the alarm causes the devices to shutdown as described and requires the operator to reset the unit from the user terminal; the unit will only restart if the temperature has returned above the alarm set point + differential.

Automatic reset: the activation of the antifreeze protection causes the devices to shutdown as described, and does not require any action by the operator to reset the operation of the unit; as soon as the temperature rises above the alarm set point + differential, the unit will restart automatically.

A start-up configuration can be defined for the devices in the event of antifreeze alarms when the unit is off.

This function applies only to air/water and water/water units, with the following options:

DISABLED: the function is disabled, consequently no load switches in response to an antifreeze alarm, except for the alarm relay

HEAT & PUMP ON: in response to an antifreeze alarm, the antifreeze heater and the circulating pump are started

HEAT & UNIT ON: in response to an antifreeze alarm, the antifreeze heater and the entire unit are started in heat pump mode, if operation in heating mode is featured

HEATER ONLY ON: in response to an antifreeze alarm, the antifreeze heater/heaters are started.

+030220431 rel 1.6 16/11/2010 76

10. Connections, accessories and options

µC3

11. Codes

Code accessories

µC3 in plastic case, complete (single package)

µC3 without plastic case (multiple packs of 18 boards)

µC3 connector kit (single package)

µC3 connector kit (multiple packs of 18 boards)

µC3 cable kit 2 m (single package) parameter programming key with external power supply clock board optically-isolated RS485 serial board

RS232 serial board for modems

LON FTT10 STD serial board with LonMark chiller profile

120×32 semi-graphic terminal, panel installation

12. Technical specifications

MCH3010020

MCH3010001

MCH3CON000

MCH3CON001

MCH300CAB0

MCH300KYA0

PCO100CLK0

PCOS004850

PCO100MDM0

PCO10001F0

PGD0000F00

Plastic case material flame retardancy ball pressure test technopolymer

V0 (UL94) and 960°C (IEC 695)

125°C resistance to creeping current colour type of assembly

≥250 V grey RAL7035 mounted on DIN rail, as per DIN 43880 and CEI EN 50022 standards

Electrical specifications

Power supply (controller with standard terminal connected): 22 to 38 Vdc or 24 Vac ±15% 50/60 Hz — Maximum power input P= 14 W.

Analogue inputs

analogue conversion type

10-bit A/D converter, built-in CPU

5 inputs: B5, B6, B7, B9 and B10; CAREL NTC temperature sensors (-

50T90°C; R/T 10 kΩ 25°C)

2 inputs: B3 and B4; sensors with 0 to 5 Vdc ratiometric signal

1 input: B8; sensor with 4 to 20 mA current signal

2 inputs: B1 and B2; NTC or 0 to 5 V, can be configured by software maximum number input time constant internal resistance of 4 to 20 mA inputs

1 s

100 Ω

+030220431 rel 1.6 16/11/2010 77

resolution maximum load

µC3

Analogue outputs

type and max. no.

Digital outputs

maximum number current limits

14 (electromechanical relays)

N1, N2, N3, N4

N6, N7, N8, N9

N10

N11, N12, N13, N14 max current 2A for each relay output, extendable to 3A for a single output

4 x 0 to 10 Vdc outputs (Y1, Y2, Y5 and Y6);

2 PWM phase control outputs (Y3 and Y4) with a 5 V impulse of programmable duration;

8 bit

1 k Ω (10 mA) for 0 to 10 V and 470 Ω (10 mA) for PWM

GROUP A: C1-2, C3-4

Signal relay 1: C5

GROUP B: C6-7, C8-9

Signal relay 2: C10

GROUP C: C11-12, C13-14

Some outputs are grouped in twos, with two common terminals so as to ensure easy assembly of the common pins. Make sure that the current running through the common terminals does not exceed the rated current of each individual terminal, that is: 6 A for the Mini-fit terminals.

Type of relay 1250 VA, 250Vac, 5 A resistive

EN approval EN60730: 3 A resistive, 2 A inductive, 3(2) A (100,000 cycles)

UL approval

UL: 3 A resistive, 1 A FLA, 6 A LRA, 250 Vac, cos ϕ= 0.4, C300 (30,000 cycles)

All the relays must have the common in the same group [C1-2, C3-4], [C6-7, C8-9], [C11-12, C13-C14] connected together externally.

Power

G(+), G0(-) Power supply to µchiller3 +24 Vdc/Vac

VDC

5VR

Power output for 24 Vdc active probes

Power output for 5 Vdc ratiometric probes

VZC 24 Vac zero crossing for the PWM phase control analogue outputs

The use of some inputs/outputs depends on the configuration of the parameters.

Other specifications

storage conditions operating conditions index of protection

-20T70, 90 % RH non-condensing

-10T55, 90 % RH non-condensing

IP20 or IP00 (version without plastic case) environmental pollution class of protection against electric shock

PTI of the insulating materials period of stress across the insulating parts type of action type of disconnection or microswitching category of resistance to heat and fire immunity against voltage surges normal to be integrated in Class I and/or II appliances

250 V long

1C microswitching category D (UL94 — V0) category 1 no. of automatic operating cycles software class and structure

The device is not designed to be he-held.

WARNINGS

100,000 (EN 60730-1); 30,000 (UL 873)

Class A

• when programming the parameters with the key, the controller must be disconnected form the power supply and any other devices;

• for applications subject to strong vibrations (1.5 mm pk-pk 10/55 Hz), secure the cables connected to the µchiller3 using clamps placed around 3 cm from the connectors;

• for operation in domestic environments, shielded cables must be used (one wire + shield) for the tLAN connections (EN 55014-1);

• If a single power transformer is used for the µchiller3 and the options, to avoid damaging the controller, all the G0 pins on the various controllers or the boards must be connected to the same terminal on the secondary, and all the G pins to the other terminal on the secondary, resetting the polarity of G and G0 for all the terminals;

• the system made up of the control board and the other optional boards represents a control device to be incorporated into class I or class II appliances.

+030220431 rel 1.6 16/11/2010 78

Источник

Мини -чиллер McQuay 4AC150R чего-то ругается. При остановке компрессора выдает сигнал тревоги: Cool Mode antefreeze.
Кто в курсе , подскажите!
Нет ни опыта, т.к. в наших краях чиллер — редчайшая редкость. В руках не бывало. Установили, обвязали, запустили, а он ругается…
Спасибо!
Чиллер — это тема.Напрасно вы говорите, что это редкость в наших краях.Мало-мальски крупное современное здание — уже наверняка с чиилером(торговые центры,бизнес центры,промышленные комбинаты).Их в Питере — просто море.А по поводу ошибок — есть список кодов ошибок.Обычно прилагается к агрегату вместе с паспортом и другими бумагами.Я у себя по диска покопаюсь-если что найду — напишу.
Мы находимся далеко не в Питере. Коды ошибок нашел, но этот сигнал тревоги там не прописан. Машина работает, но периодически «зависает» с этой тревогой.
Здраствуйте!
Мне кажется, вам нужно обратиться в представительство McQuay.

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Источник

When a malfunction of the unit is detected, immediately switch off the main power supply before proceeding

with the following troubleshooting procedures.

The following are common fault conditions and simple troubleshooting tips. If any other fault conditions that

are not listed occur, contact your nearest local dealer. DO NOT attempt to troubleshoot the unit by yourself.

Error Code

ERROR DISPLAY

Phase Missing

Phase Seq Error

Memory Error

Entering Water sensor

Open/Short

Leaving water sensor

Open/Short

Outdoor Air sensor

Open/Short

Water Flow Error

Cool Mode Antifreeze

OV/UN Voltage

Pump Overload

IPM Error

Comp 1 Overload

Comp 1 Discharge

Overheat

High Pressure 1

Low Pressure 1

Comp 1 Defrost

sensor Open/Short

Comp 1 Suct sensor

Open/Short

Comp 1 Discharge

sensor Open/Short

Coil 1 Inlet Temp

Open/Short

V-Hx Inlet Temp

sensor Open/Short

V-Hx Outlet Temp

Open/Short

Comp 2 Overload

High Pressure 2

Low Pressure 2

Comp 2 Defrost

sensor Open/Short

Comp 2 Discharge

sensor

Open/Short/Overheat

ERROR DESCRIPTION

Phase missing

Wrong phase sequencing

EEPROM read/write error

BPHE water in sensor error

BPHE water out sensor error

Ambient temp sensor error

Cv contact opened

Leaving water temp too low

Comp High Voltage (>490V)

Comp Low Voltage (<310V)

Pump OLP closed

IPM over-current or overheat

Comp 1 overload

Comp 1 discharge overheat

System 1 high pressure

System 1 low pressure

Coil out system 1 sensor

error

Suction comp system 1

sensor error

Discharge comp system 1

sensor error

Coil In system 1 sensor error

BPHE refrigerant in sensor

error

BPHE refrigerant out sensor

error

Comp 2 overload

System 2 high pressure

System 2 low pressure

Coil out system 2 sensor

error

Discharge comp system 2

sensor error

RESET

PUMP

(default)

Manual

OFF

Manual

OFF

Auto

OFF

Auto

OFF

Auto

OFF

Auto

OFF

Manual

OFF

Auto

OFF

<460V, Auto

OFF

>340V, Auto

OFF

Auto

OFF

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

Auto

—

CONTROL MEASURE

SYSTEM1

SYSTEM 2

COMP

FAN

COMP

OFF

—

OFF

—

OFF

—

OFF

—

OFF

—

OFF

—

OFF

—

OFF

—

OFF

—

OFF

—

OFF

—

OFF

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Источник

Ошибки чиллера

Дата публикации:
15 Ноября 2022 г.

Ошибки чиллеров Aermec
Ошибки чиллеров Lessar
Ошибки чиллеров Dantex
Ошибки чиллеров NED
Ошибки чиллеров Wesper
Ошибки чиллеров York
Ошибки чиллеров Clivet
Ошибки чиллеров Carrier
Ошибки чиллеров Daikin
Ошибки чиллеров Danfoss

Коды ошибок чиллеров Aermec

Ошибка	Значение
Flowswitch	срабатывание реле защиты от перепада давления и, или реле защиты по протоку воды
C1 Compressor	срабатывание размыкателя цепи компрессора 1
C1А Compres	срабатывание размыкателя цепи компрессора 1А
C2 Compressor	срабатывание размыкателя цепи компрессора 2
C2А Compres	срабатывание размыкателя цепи компрессора 2А
C1В Compres	срабатывание размыкателя цепи компрессора 1В
C2В Compres	срабатывание размыкателя цепи компрессора 2В
C1 Low Pres.	срабатывание реле/датчика низкого давления контура 1
C2 Low Pres.	срабатывание реле/датчика низкого давления контура 2
C1 High Pres	срабатывание реле/датчика высокого давления контура 1
C2 High Pres	срабатывание реле/датчика высокого давления контура 2
C1 Anti-Freez	срабатывание защиты от замораживания контура 1
C2 Anti-Freez	срабатывание защиты от замораживания контура 2
C1 Sensor	неисправность датчика в контуре 1
C2 Sensor	неисправность датчика в контуре 2
Volt. monitor	срабатывание защиты от нештатного напряжения питания
C1 Pumpdown	неисправность в цилиндре компрессора контура 1
C2 Pumpdown	неисправность в цилиндре компрессора контура 2
Eprom	неисправность электронной карты (обратитесь в сервисную службу)
Ram	неисправность электронной карты (обратитесь в сервисную службу)
Flowswitch R	срабатывание реле защиты по протоку воды системы рекуперации тепла (только для модификаций D и Т)
C1 EV. Pump	срабатывание размыкателя цепи насоса в испарителе контура 1
C1 Ev.A.Freez	срабатывание защиты по температуре газообразного хладагента на выходе испарителя контура 1
C2 Ev.A.Freez	срабатывание защиты по температуре газообразного хладагента на выходе испарителя контура 2

Коды ошибок чиллеров Lessar

Моноблочные чиллеры LUC-F(D)HDA30CAP

Ошибка	Значение
E0	ошибка EEPROM чиллера
E1	неправильное чередование фаз
E2	ошибка связи
E3	ошибка датчика температуры прямой воды
E4	ошибка датчика температуры воды на выходе из кожухотрубного теплообменника
E5	ошибка датчика температуры на трубе конденсатора А
E6	ошибка датчика температуры на трубе конденсатора В
E7	ошибка датчика температуры наружного воздуха
E8	ошибка защиты по электропитанию
E9	ошибка датчика протока воды ( ручной сброс аварии )
EA	зарезервировано
Eb	ошибка датчика температуры для защиты от замерзания кожухотрубного теплообменника
EC	потеря связи проводного пульта управления с чиллером
Ed	зарезервировано
EF	ошибка датчика температуры воды на входе в кожухотрубный теплообменник
P0	сработала защита по превышению давления или температуры хладагента в контуре А
P1	сработала защита по низкому давлению хладагента в контуре А ( ручной сброс аварии )
P2	сработала защита по превышению давления или температуры хладагента в контуре В ( ручной сброс аварии )
P3	сработала защита по низкому давлению хладагента в контуре B ( ручной сброс аварии )
P4	сработала защита по превышению тока контура А ( ручной сброс аварии )
P5	сработала защита по превышению тока контура В ( ручной сброс аварии )
P6	сработала защита по высокой температуре конденсации в контуре А
P7	сработала защита по высокой температуре конденсации в контуре B
P8	зарезервировано
P9	сработала защита по превышению разности температур прямой и обратной воды
PA	защита от низкой температуры наружного воздуха при пуске
Pb	сработала защита от обмерзания
PC	защита по давлению предупреждающая обмерзание контура А ( ручной сброс аварии )
PD	защита по давлению, предупреждающая обмерзание контрура В ( ручной сброс аварии )
PE	защита от низкой температуры в кожухотрубном испарителе

Коды ошибок чиллеров Dantex

Модульные чиллеры серии DN

Для модулей производительностью 25/30/35 кВт

Ошибка	Значение
E0	ошибка расходомера воды ( трижды )
E1	ошибка в последовательности подключения фаз
E2	ошибка связи
E3	ошибка датчика температуры воды на выходе
E4	ошибка датчика температуры воды на выходе из кожухотрубного теплообменника
E5	ошибка датчика температуры трубок конденсатора А
E6	ошибка датчика температуры трубок конденсатора B
E7	ошибка датчика температуры наружного воздуха
E8	ошибка датчика температуры нагнетаемого воздуха в системе А ( компрессор с цифровым управлением )
E9	ошибка расходомера воды ( в первый и второй раз )
EA	основной блок зафиксировал уменьшение количества дополнительных блоков
EB	ошибка датчика температуры в системе защиты от обмерзания кожухотрубного теплообменника
EC	проводной контроллер не находит в сети один из модульных блоков
ED	ошибка в системе управления и связи между блоками
Ed	четырехкратное в течение 1 часа срабатывание электрической защиты
EE	ошибка связи проводного пульта управления с микропроцессором блока
EF	ошибка датчика температуры воды на входе
P0	ошибка в системе защиты от повышения давления или защиты от перегрева воздуха в системе A
P1	защита от понижения давления в системе A
P2	ошибка в системе защиты от повышения давления или защиты от перегрева воздуха в системе В
P3	защита от понижения давления в системе В
P4	защита от перегрузки по току в системе A
P5	защита от перегрузки по току в системе B
P6	защита от высокого давления в конденсаторе системы A
P7	защита от высокого давления в конденсаторе системы B
P8	датчик температуры в линии нагнетания компрессора с цифровым управлением системы А
Pb	система защиты от обмерзания
PE	защита от понижения температуры теплообменника «труба в трубе»
F1	неисправность электрически стираемой программируемой постоянной памяти
F2	ошибка в количестве соединяемых параллельно проводных контроллеров

Для модулей производительностью 55/60/65 кВт

Ошибка	Значение
E0	ошибка в определении расхода воды ( трижды )
E1	ошибка в последовательности подключения фаз
E2	ошибка связи
E3	ошибка датчика температуры охлаждаемой воды на выходе
E4	ошибка датчика температуры воды на выходе из кожухотрубного теплообменника
E5	ошибка датчика температуры трубок конденсатора А
E6	ошибка датчика температуры трубок конденсатора В
E7	ошибка датчика температуры наружного воздуха
E8	ошибка датчика температуры в линии нагнетания компрессора системы A
E9	ошибка в определении расхода воды ( первый и второй раз )
EA	основной блок фиксирует уменьшение количества дополнительных блоков
EB	ошибка датчика температуры 1 в системе защиты от обмерзания кожухотрубного теплообменника
EC	проводной контроллер не обнаружил выхода одного из модульных блоков
ED	ошибка связи между проводным контроллером и модульным блоком
Ed	четырехкратное в течение 1 часа срабатывание защиты электропитания
EE	ошибка связи между проводным контроллером и компьютером
EF	ошибка датчика температуры воды на входе
P0	срабатывание защиты от высокого давления или от перегрева в линии нагнетания системы А
P1	срабатывание защиты от низкого давления в системе А
P2	срабатывание защиты от высокого давления или от перегрева в линии нагнетания системы B
P3	срабатывание защиты от низкого давления в системе B
P4	срабатывание защиты от перегрузки по току в системе А
P5	срабатывание защиты от перегрузки по току в системе B
P6	срабатывание защиты от высокого давления в конденсаторе в системе А
P7	срабатывание защиты от высокого давления в конденсаторе в системе B
P8	ошибка датчика температуры в линии нагнетания компрессора системы А
P9	защита по разности температур воды на входе и выходе
PA	защита от переохлаждения при пуске
Pb	срабатывание защиты от обмерзания
PC	( резервный код )
PE	защита от переохлаждения кожухотрубного теплообменника
F1	неисправность электрически стираемой программируемой постоянной памяти
F2	ошибка в количестве соединяемых параллельно проводных контроллеров

Для модулей производительностью 130 кВт

Ошибка	Значение
E0	ошибка в определении расхода воды (трижды)
E1	ошибка в последовательности подключения фаз
E2	ошибка связи
E3	ошибка датчика температуры охлаждаемой воды на выходе
E4	ошибка датчика температуры воды на выходе из кожухотрубного теплообменника
E5	ошибка датчика температуры трубок конденсатора А
E6	ошибка датчика температуры трубок конденсатора В
E7	ошибка датчика температуры наружного воздуха
E8	ошибка датчика температуры в линии нагнетания компрессора системы A
E9	ошибка в определении расхода воды (первый и второй раз)
EA	основной блок фиксирует уменьшение количества дополнительных блоков
EB	ошибка датчика температуры 1 в системе защиты от обмерзания кожухотрубного теплообменника
EC	проводной контроллер не обнаружил выхода одного из модульных блоков
ED	ошибка связи между проводным контроллером и модульным блоком
Ed	четырехкратное в течение 1 часа срабатывание защиты электропитания
EE	ошибка связи между проводным контроллером и компьютером
EF	ошибка датчика температуры воды на входе
P0	срабатывание защиты от высокого давления или от перегрева в линии нагнетания системы А
P1	срабатывание защиты от низкого давления в системе А
P2	срабатывание защиты от высокого давления или от перегрева в линии нагнетания системы B
P3	срабатывание защиты от низкого давления в системе B
P4	срабатывание защиты от перегрузки по току в системе А
P5	срабатывание защиты от перегрузки по току в системе B
P6	срабатывание защиты от высокого давления в конденсаторе в системе А
P7	срабатывание защиты от высокого давления в конденсаторе в системе B
P8	ошибка датчика температуры в линии нагнетания компрессора системы А
P9	защита по разности температур воды на входе и выходе
PA	защита от переохлаждения при пуске
Pb	срабатывание защиты от обмерзания
PC	( резервный код )
PE	защита от переохлаждения кожухотрубного теплообменника
P1	неисправность электрически стираемой программируемой постоянной памяти
F2	ошибка в количестве соединяемых параллельно проводных контроллеров

Для модулей производительностью 200 кВт

Ошибка	Значение
E0	ошибка в определении расхода воды ( трижды )
E1	ошибка в последовательности подключения фаз
E2	ошибка связи
E3	ошибка датчика температуры охлаждаемой воды на выходе
E4	ошибка датчика температуры воды на выходе из кожухотрубного теплообменника
E5	ошибка датчика температуры трубок конденсатора А
E6	ошибка датчика температуры трубок конденсатора В
E7	ошибка датчика температуры наружного воздуха или сбой питания
E8	( резервный код )
E9	ошибка в определении расхода воды ( первый и второй раз )
EA	основной блок фиксирует уменьшение количества дополнительных блоков
Eb	ошибка датчика температуры 1 в системе защиты от обмерзания кожухотрубного теплообменника
EC	проводной контроллер не обнаружил выхода одного из модульных блоков
Ed	четырехкратное в течение 1 часа срабатывание защиты электропитания
EF	ошибка датчика температуры воды на входе
P0	срабатывание защиты от высокого давления или от перегрева в линии нагнетания системы А
P1	срабатывание защиты от низкого давления в системе А
P2	срабатывание защиты от высокого давления или от перегрева в линии нагнетания системы B
P3	срабатывание защиты от низкого давления в системе B
P4	срабатывание защиты от перегрузки по току в системе А
P5	срабатывание защиты от перегрузки по току в системе B
P6	срабатывание защиты от высокого давления в конденсаторе в системе А
P7	срабатывание защиты от высокого давления в конденсаторе в системе B
P8	ошибка датчика температуры в линии нагнетания компрессора системы А
P9	защита по разности температур воды на входе и выходе
PA	защита от переохлаждения при пуске
Pb	срабатывание защиты от обмерзания
PC	( резервный код )
PE	защита от переохлаждения кожухотрубного теплообменника
F1	неисправность электрически стираемой программируемой постоянной памяти
F2	ошибка в количестве соединяемых параллельно проводных контроллеров

Коды ошибок чиллеров NED

Ошибка	Значение
AL001	внешний сигнал тревоги
AL002	слишком часто переписывается EEPROM
AL003	ошибка записи в EEPROM
AL004	датчик температуры воды на входе в испаритель
AL005	датчик температуры воды на выходе из испарителя
AL006	датчик температуры воды на входе в конденсатор
AL007	датчик температуры наружного воздуха
AL008	перегрузка насоса 1 в контуре потребителей
AL009	перегрузка насоса 2 в контуре потребителей
AL010	перегрузка насоса 1 в контуре конденсатора
AL011	ошибка в количестве соединяемых параллельно проводных контроллеров
AL011	перегрузка насоса 2 в контуре конденсатора
AL012	насос 1 в контуре потребителей. Нет расхода воды 1)
AL013	насос 2 в контуре потребителей. Нет расхода воды 1)
AL014	насос 1 в контуре конденсатора. Нет расхода воды 1)
AL015	насос 2 в контуре конденсатора. Нет расхода воды 1)
AL016	неисправна группа насосов в контуре потребителей
AL017	неисправна группа насосов в контуре конденсатора
AL018	требуется т/о насоса 1 в контуре потребителей
AL019	требуется т/о насоса 2 в контуре потребителей
AL020	требуется т/о насоса 1 в контуре конденсатора
AL021	требуется т/о насоса 2 в контуре конденсатора
AL022	высокая температура охлажденной воды
AL023	ненормальная работа фрикулинга
AL024	нет связи с подчиненным контроллером
AL025	слишком часто переписывается EEPROM в подчиненном контроллере
AL026	ошибка записи в EEPROM в подчиненном контроллере
AL027	нет связи с платой расширения срСОЕ 1
AL028	неисправность подогревателя испарителя
AL029	реле контроля фаз
AL030	нет связи с платой расширения срСОЕ 2
AL021	нет сигнала «открыто» от клапана в контуре теплообменника фрикулинга
AL022	нет сигнала «закрыто» от клапана в контуре теплообменника фрикулинга
AL023	авария привода клапана в контуре теплообменника фрикулинга
AL024	нет сигнала «открыто» от клапана на байпасе фрикулинга
AL025	нет сигнала «закрыто» от клапана на байпасе фрикулинга
AL026	авария привода клапана на байпасе фрикулинга
AL027	клапаны фрикулинга не готовы
AL100	контур 1 – датчик давления нагнетания
AL101	контур 1 – датчик давления всасывания
AL102	контур 1 – датчик температуры нагнетания
AL103	контур 1 – датчик температуры всасывания
AL105	рабочий диапазон контура 1 – высокий коэффициент сжатия
AL106	рабочий диапазон контура 1 – высокое давление нагнетания
AL107	рабочий диапазон контура 1 – высокий ток двигателя
AL108	рабочий диапазон контура 1 – высокое давление всасывания
AL109	рабочий диапазон контура 1 – низкий коэффициент сжатия
AL110	рабочий диапазон контура 1 – низкое дифференциальное давление
AL111	рабочий диапазон контура 1 – низкое давление нагнетания
AL112	рабочий диапазон контура 1 – низкое давление всасывания
AL113	рабочий диапазон контура 1 – высокая температура нагнетания
AL114	драйвер ЭРВ контура 1 – низкая температура перегрева
AL115	драйвер ЭРВ контура 1 – минимальное рабочее давлениев
AL116	драйвер ЭРВ контура 1 – максимальное рабочее давление
AL117	драйвер ЭРВ контура 1 – высокая температура конденсации
AL118	драйвер ЭРВ контура 1 – низкая температура всасывания
AL119	драйвер ЭРВ контура 1 – неисправность двигателя
AL120	драйвер ЭРВ контура 1 – аварийное закрытие вентиля
AL121	драйвер ЭРВ контура 1 – значение вне диапазона
AL122	драйвер ЭРВ контура 1 – нарушение диапазона настройки
AL123	драйвер ЭРВ контура 1 – потеря соединения
AL124	драйвер ЭРВ контура 1 – низкий заряд батареи
AL125	драйвер ЭРВ контура 1 – память EEPROM
AL126	драйвер ЭРВ контура 1 – неполное закрытие вентиля
AL127	драйвер ЭРВ контура 1 – несовместимость микропрограммного обеспечения
AL128	драйвер ЭРВ контура 1 – ошибка конфигурирования
AL166	контур 1 – тревога защиты от замерзания
AL167	контур 1 – требуется т/о компрессора 1
AL168	контур 1 – требуется т/о компрессора 2
AL169	контур 1 – требуется т/о компрессора 3
AL170	контур 1 – требуется т/о компрессора 4
AL171	контур 1 – требуется т/о компрессора 5
AL172	контур 1 – требуется т/о компрессора 6
AL173	контур 1 – датчик температуры конденсации
AL174	контур 1 – требуется т/о вентилятора 1
AL175	контур 1 – требуется т/о вентилятора 2
AL176	контур 1 – требуется т/о вентилятора 3
AL177	контур 1 – требуется т/о вентилятора 4
AL178	контур 1 – высокое давление от реле давления
AL179	контур 1 –низкое давления от реле давления
AL180	контур 1 – перегрузка компрессора 1
AL181	контур 1 – перегрузка компрессора 2
AL182	контур 1 – перегрузка компрессора 3
AL183	контур 1 – перегрузка компрессора 4
AL184	контур 1 – перегрузка компрессора 5
AL185	контур 1 – перегрузка компрессора 6
AL186	Контур 1 – превышена длительность перекачивание хладагента
AL187	контур 1 – датчик температуры воды на выходе испарителя
AL188	контур 1 – защита от замерзания испарителя по датчику темп. на выходе из испарителя
AL189	контур 1 – перегрузка вентилятора конденсатора
AL200	контур 2 – датчик давления нагнетания
AL201	контур 2 – датчик давления всасывания
AL202	контур 2 – датчик температуры нагнетания
AL203	контур 2 – датчик температуры всасывания
AL205	рабочий диапазон контура 2 – высокий коэффициент сжатия
AL206	рабочий диапазон контура 2 – высокое давление нагнетания
AL207	рабочий диапазон контура 2 – высокий ток двигателя
AL208	рабочий диапазон контура 2 – высокое давление всасывания
AL209	рабочий диапазон контура 2 – низкий коэффициент сжатия
AL210	рабочий диапазон контура 2 – низкое дифференциальное давление
AL211	рабочий диапазон контура 2 – низкое давление нагнетания
AL212	рабочий диапазон контура 2 – низкое давление всасывания
AL213	рабочий диапазон контура 2 – высокая температура нагнетания
AL214	драйвер ЭРВ контура 2 – низкая температура перегрева
AL215	драйвер ЭРВ контура 2 – минимальное рабочее давление
AL216	драйвер ЭРВ контура 2 – максимальное рабочее давление
AL217	драйвер ЭРВ контура 2 – высокая температура конденсации
AL218	драйвер ЭРВ контура 2 – низкая температура всасывания
AL219	драйвер ЭРВ контура 2 – неисправность двигателя
AL220	драйвер ЭРВ контура 2 – аварийное закрытие вентиля
AL221	драйвер ЭРВ контура 2 – значение вне диапазона
AL222	драйвер ЭРВ контура 2 – нарушение диапазона настройки
AL223	драйвер ЭРВ контура 2 – потеря соединения
AL224	драйвер ЭРВ контура 2 – низкий заряд батареи
AL225	драйвер ЭРВ контура 2 – память EEPROM
AL226	драйвер ЭРВ контура 2 – неполное закрытие вентиля
AL227	драйвер ЭРВ контура 2 – несовместимость микропрограммного обеспечения
AL228	драйвер ЭРВ контура 2 – ошибка конфигурирования
AL266	контур 2 – тревога защиты от замерзания
AL267	контур 2 – требуется т/о компрессора 1
AL268	контур 2 – требуется т/о компрессора 2
AL269	контур 2 – требуется т/о компрессора 3
AL270	контур 2 – требуется т/о компрессора 4
AL271	контур 2 – требуется т/о компрессора 5
AL272	контур 2 – требуется т/о компрессора 6
AL273	контур 2 – датчик температуры конденсации
AL274	контур 2 – требуется т/о вентилятора 1
AL275	контур 2 – требуется т/о вентилятора 2
AL276	контур 2 – требуется т/о вентилятора 3
AL277	контур 2 – требуется т/о вентилятора 4
AL278	контур 2 –высокое давление от реле давления
AL279	контур 2 – низкое давление от реле давления
AL280	контур 2 – перегрузка компрессора 1
AL281	контур 2 – перегрузка компрессора 2
AL282	контур 2 – перегрузка компрессора 3
AL283	контур 2 – перегрузка компрессора 4
AL284	контур 2 – перегрузка компрессора 5
AL285	контур 2 – перегрузка компрессора 6
AL286	контур 2 – превышена длительность перекачивание хладагента
AL287	контур 2 – датчик температуры воды на выходе испарителя
AL288	контур 2 – защита от замерзания испарителя по датчику темп. на выходе из испарителя
AL289	контур 2 – перегрузка вентилятора конденсатора

Коды ошибок чиллеров Wesper

Ошибка	Значение
ADC	ошибка, связанная с микропроцессором
CPF	неисправность датчика высокого давления
EPF	неисправность датчика низкого давления
REF	низкое давление фреона – возможно утечка
CPnc	датчик высокого давления не измеряет
EPnc	датчик низкого давления не измеряет
CFC1	дефект компрессора 1
CFC2	дефект компрессора 2
EWTH	дефект измерителя температуры воды на входе
EWTL	дефект измерителя температуры воды на выходе
LWTC	температура воды на входе не меняется
LWTH	температура воды на выходе не меняется
LWTL	датчик температуры входящей воды неисправен
LWLH	датчик температуры исходящей воды неисправен
DISL	термостат линии нагнетания компрессора неисправен
OATH	термостат наружного воздуха неисправен
OATL	термостат наружного воздуха неисправен
OCTL	термостат конденсатора не работает
HPP	высокое давление компрессора
HP	лимитированная защита по давлению компрессора
HPC	блокировка через реле высокого давления
LP	сработала защита по низкому давлению
DIS	сработал термостат компрессора
LO	выходящая вода имеет низкую температуру
HI	выходящая вода имеет высокую температуру
FS	сработало реле протока на линии воды
CF1	блокировка тепловым реле компрессора 1
CF2	блокировка тепловым реле компрессора 2
OF1	блокировка тепловым реле компрессора 2
PF	блокировка двигателя насоса тепловым реле
Lou	недостаток воды в контуре чиллера
EEP	ошибка, связанная с микропроцессором
JUMP	ошибочная конфигурация перемычек ( DIP )
ConF	неверная конфигурация контроллера

Коды ошибок чиллеров York

Компрессор 1 / Компрессор 2	Значение
C1-H1 / C2-H2	высокое давление
C1-L1 / C2-L2	слишком низкое давление
C1-t1 / C2-t2	срабатывание защиты от низкого давления и термистора всасываемого газа
C1-51 / C2-52	срабатывание термореле компрессора
C1-61 / C2-62	срабатывание термостата контроля отработанного газа
C1-71 / C2-72	срабатывание внутреннего термистора компрессора Thermistor
C1-o1 / C2-o2	срабатывание регулятора дифференциального давления
C1-28 / C2-28	отказ датчика давления всасываемого газа ( открыт / закорочен )

Коды ошибок чиллеров Clivet

Центральный модуль

Ошибка	Значение
E001	отказ датчика темп. вход. воды в блоке управления
E002	отказ датчика темп. выход. воды в блоке управления
E003	отказ датчика внешней температуры
E004	отказ ввода сброса воды
E005	отказ датчика внешнего RH%
E006	отказ датчика внешнего RH%
E007	температура в насосе 2 в блоке управления
E008	температура в насосе 2 в блоке управления
E009	давление в системе
E010	монитор фаз
E011	антифриз в блоке управления
E012	пред. антифриз в блоке управления
E013	замена центрального насоса
E014	конфигурация устройства
E015	отказ предела потребления
E016	отказ сети в блоке управления
E017	блокировка управления нагрева
E018	неправильная разница температур
E019	низкая внешняя температура

Модуль компрессора

Ошибка	Значение
E101	отказ датчика конденсации / испарения
E102	отказ датчика давления конденсации
E103	отказ датчика давления испарения
E104	отказ датчика температуры восстановления
E105	высокое давление
E106	низкое давление
E107	терм. вентилятор / насос
E111	конденс / испар подача воды
E112	пред. высокое давление 1
E113	пред. высокое давление 1
E114	пред. низкое давление
E115	обяз. разморозка
E116	макс. разница давления
E117	восстановление воды
E118	восстановление тепла
E108	терм. компрессор 1
E109	терм. компрессор 2
E110	терм. компрессор 3
E213	модуль не подключен
E119	разница давлений масла
E120	замерзание конденсатора
E121	пред. BP2
E123	TA TEE
E124	TS TEE
E125	пред. макс. TS TEE
E126	пред. макс. TS TEE
E127	отказ питания
E128	ошибка шагового двигателя

Коды ошибок чиллеров Carrier

Код №	НАИМЕНОВАНИЕ	ОПИСАНИЕ
AL20	Перегорел предохранитель цепи управления (24 В переменного тока)	Сигнал 20 появляется, если перегорает предохранитель (F3); при этом останавливаются все контролируемые программой узлы агрегата. Сигнал будет оставаться активным до замены предохранителя на 15 А.
AL21	Перегорел предохранитель цепи микропроцессора (18 В переменного тока)	Сигнал 21 появляется, если перегорает один из предохранителей (F1/F2) в цепи питания микропроцессора -18 вольт переменного тока. Регулируемый клапан всасывания будет открыт, лимит тока действовать не будет. Компрессор будет попеременно включаться и выключаться. Управление температурой осуществляется за счет цикличной работы компрессора.
AL22	Защита электродвигателя вентилятора испарителя	Сигнал 22 появляется при срабатывании внутреннего устройства защиты электродвигателя испарителя. Сигнал выключает все контролируемые узлы до тех пор, пока не будет осуществлен сброс защитного устройства электродвигателя.
AL23	Отсоединена перемычка КА2-КВ10	Сигнал 23 появляется при отсутствии перемычки. Сигнал остается активным до тех пор, пока перемычка не восстановлена.
AL24	Защита электродвигателя компрессора	Сигнал 24 появляется при срабатывании внутреннего устройства защиты электродвигателя компрессора. Сигнал выключает все контролируемые узлы, за исключением вентиляторов испарителя; сигнал остается активным до момента сброса устройства защиты электродвигателя.
AL25	Защита электродвигателя вентилятора конденсатора	Сигнал 25 появляется при срабатывании внутреннего устройства защиты электродвигателя конденсатора и выключает все контролируемые узлы, за исключением вентиляторов испарителя. Сигнал остается активным до момента сброса устройства защиты электродвигателя. Этот сигнал не действует при работе агрегата с конденсатором водяного охлаждения.
AL26	Неисправность всех датчиков подаваемого и отработанного воздуха	Сигнал 26 появляется, если контроллер обнаруживает, что показания всех датчиков находятся за пределами заданного диапазона. Это может произойти в том случае, если температура в кузове выходит за пределы от -50°С до +70°С (-58°F до +158°F). Этот сигнал вызывает реакцию на неисправность в соответствии с кодом функции Cd29.
AL27	Ошибка калибровки цепи датчика	Контроллер включает в себя встроенный аналогово-цифровой преобразователь (АЦП), используемый для преобразования аналоговых показателей (датчиков температуры, датчиков тока и т.д.) в цифровые. Контроллер постоянно проверяет калибровку АЦП. Если АЦП не поддается калибровке в течение 30 секунд подряд, выводится этот сигнал. Сигнал перестает быть активным при успешной калибровке АЦП.
AL51	Ошибка в списке сигналов	В ходе начальной диагностики проверяется EEPROM для оценки его содержания. При этом проверяются заданное значение и список сигналов. Если содержание признается недействительным, выдается сигнал 51. В процессе управления любая операция, связанная со списком сигналов и совершенная с ошибкой, вызывает появление сигнала 51. Сигнал 51 предназначен «только для вывода на дисплей» и не заносится в список сигналов. При нажатии клавиши ENTER в момент, когда на дисплей выведено сообщение «CLEAr», производится попытка удалить список сигналов. Если эта попытка успешна (все сигналы деактивируются), то происходит сброс сигнала 51.
AL52	Список сигналов заполнен	Сигнал 52 появляется, если список сигналов заполнен — при включении или после внесения сигнала в список. Сигнал 52 выводится на дисплей, но не заносится в список сигналов. Этот сигнал можно сбросить, удалив список сигналов. Удаление происходит в том случае, если содержащиеся в списке сигналы не активны.
AL53	Неисправность никель-кадмиевой батареи	Сигнал 53 выдается, если заряд никель-кадмиевой батареи слишком мал для осуществления записи с питанием от батареи. ПРИМЕЧАНИЕ: Проверьте и перезарядите или замените батарею.
AL54	Неисправность основного датчика подаваемого воздуха (STS)	Сигнал 54 выдается в случае недействительных показаний основного датчика подаваемого воздуха, находящихся за пределами от -50 до +70°С (от -58° F до +158°F), или если логическая проверка этого датчика выявляет его неисправность. Если сигнал 54 выдается в тот момент, когда для управления используется основной датчик подаваемого воздуха, то для управления будет использоваться вторичный датчик подаваемого воздуха, если он установлен в агрегате. Если агрегат не оборудован вторичным датчиком подаваемого воздуха, то при появлении сигнала AL54 для управления будет использоваться величина: показания основного датчика отработанного воздуха минус 2°С.
AL55	Неисправность регистратора DataCORDER	Этот сигнал выводится, чтобы указать на отключение DataCORDER в связи с внутренней неисправностью. Чтобы удалить этот сигнал, просто переконфигурируйте агрегат на номер его модели OEM с помощью карты мультиконфигураций.
AL56	Неисправность основного датчика отработанного воздуха (RTS)	Сигнал 56 выдается в случае недействительных показаний основного датчика отработанного воздуха, находящихся за пределами от -50 до +70°С (от -58°F до +158°F). Если сигнал 56 выдается в тот момент, когда для управления используется основной датчик отработанного воздуха, то для управления будет использоваться вторичный датчик отработанного воздуха, если он установлен в агрегате. Если агрегат не оборудован вторичным датчиком отработанного воздуха или он неисправен, то для управления будет использоваться основной датчик подаваемого воздуха.
AL57	Неисправность датчика температуры окружающей среды (AMBS)	Сигнал 57 выдается в случае недействительных показаний температуры окружающей среды, находящихся за пределами рабочего диапазона от -50°С (-58°F) до +70°С (+158°F).
AL58	Защита компрессора по повышенному давлению (HPS)	Сигнал 58 выдается, если защитное реле высокого давления нагнетания компрессора (HPS) остается разомкнутым не менее одной минуты. Сигнал остается активным до тех пор, пока реле не замкнется, после чего компрессор снова включается.
AL59	Защита термостата завершения нагревания (НТТ) Safety	Сигнал 59 выдается при размыкании термостата завершения нагревания (НТТ) и вызывает выключение нагревателя. Сигнал остается активным до замыкания термостата.
AL60	Неисправность датчика завершения оттаивания (DTS)	Сигнал 60 указывает на возможную неисправность датчика завершения оттаивания (DTS). Он появляется при размыкании термостата завершения нагревания (НТТ), или если показания DTS не превышают 25,6°С (78°F) через два часа после начала оттаивания. Контроллер проверяет, снизились ли показания датчика завершения оттаивания (DTS) до 10°С или ниже через полчаса после достижения заданного значения а диапазоне замороженных грузов, или через полчаса непрерывной работы компрессора при падении температуры отработанного воздуха ниже 7°С (45°F). Если этого не произошло, то выдается сигнал неисправности DTS, и режим оттаивания управляется показаниями датчика температуры отработанного воздуха (RTS). Через час контроллер завершит режим оттаивания.
AL61	Неисправность нагревателей	Сигнал 61 относится к нагревателям; он выдается при обнаружении ненормального уровня тока при включении (выключении) нагревателя. Проверяется уровень тока в каждой фазе источника тока. Этот сигнал выводится на дисплей, но не вызывает каких-либо действий; он удаляется при нормальном уровне тока, потребляемого нагревателем.
AL62	Неисправность цепи компрессора	Сигнал 62 вызывается ненормальным повышением (понижением) уровня тока при включении (выключении) компрессора. Предполагается, что компрессор потребляет ток минимум в 2 А; в противном случае выдается этот сигнал. Этот сигнал выводится на дисплей, но не вызывает каких-либо действий; он удаляется при нормальном уровне тока, потребляемого компрессором.
AL63	Превышение лимита тока	Сигнал 63 выдается системой ограничения тока. Если компрессор ВКЛЮЧЕН, и процедуры ограничения уровня тока не в состоянии удержать его в заданных пользователем пределах, выдается сигнал превышения лимита тока. Этот сигнал предназначается только для вывода на дисплей; он удаляется при изменении режима потребления тока агрегатом, при изменении лимита тока с помощью кода Cd32, или если шаговому двигателю регулируемого клапана давления всасывания (SMV) выдается разрешение открыть его на 100%.
AL64	Превышение предела температуры нагнетания (CPDT)	Сигнал 64 выдается, если обнаружено, что температура нагнетания превышает 135°С (275°F) в течение трех минут подряд, если она превышает 149°С (300°F), или если показания датчика находятся за пределами рабочего диапазона. Сигнал предназначается только для вывода на дисплей и не вызывает каких-либо действий.
AL65	Неисправность датчика давления нагнетания (DPT)	Сигнал 65 выдается, если показания датчика давления нагнетания компрессора находятся за пределами рабочего диапазона от 73,20 см ртутного столба (30 дюймов ртутного столба до 32,34 кг/см2 (460 psig). Сигнал предназначается только для вывода на дисплей и не вызывает каких-либо действий.
AL66	Неисправность датчика давления всасывания (SPT)	Сигнал 66 выдается, если показания датчика давления всасывания находятся за пределами рабочего диапазона от 73,20 см ртутного столба (30 дюймов ртутного столба) до 32,34 кг/см2 (460 psig). Сигнал предназначается только для вывода на дисплей и не вызывает каких-либо действий.
AL67	Неисправность датчика влажности	Сигнал 67 выдается, если показания датчика влажности находятся за пределами рабочего диапазона относительной влажности от 0% до 100%. Если сигнал 67 становится активным, а ранее был выбран режим осушения, то режим осушения выключается.
AL68	Неисправность датчика давления конденсатора (СРТ)	Сигнал 68 выдается, если показания датчика давления конденсатора находятся за пределами рабочего диапазона от 73,20 см ртутного столба (30 дюймов ртутного столба) до 32,34 кг/см2 (460 psig). Сигнал предназначается только для вывода на дисплей и не вызывает каких-либо действий.
AL69	Неисправность датчика температуры всасывания (CPSS)	Сигнал 69 выдается, если показания датчика температуры всасывания находятся за пределами рабочего диапазона от -60°С (от -76°F) до 150°С (302°F). Сигнал предназначается только для вывода на дисплей и не вызывает каких-либо действий.
ПРИМЕЧАНИЕ: Если контроллер конфигурирован на работу с четырьмя датчиками без регистратора DataCORDER, то сигналы регистратора AL70 и AL71 будут обрабатываться как сигналы контроллера AL70 и AL71.
ERR#	Внутренняя неисправность микропроцессора	#0 — Ошибка ОЗУ — Указывает на ошибку рабочей памяти контроллера. #1 — Ошибка программной памяти — Указывает на сбой в программе контроллера. #2 — Время ожидания истекло — Программа контроллера вошла в режим, при котором ее выполнение прекращается. #3 — Неисправность внутреннего таймера — Внутренние таймеры неисправны. Невозможно выполнять циклы с заданным временем, например, оттаивание. #4 — Неисправность внутреннего счетчика — Неисправность внутренних многоцелевых счетчиков. Счетчики используются таймерами и другими устройствами. #5 — Неисправность АЦП — Неисправность аналого-цифрового преобразователя (АЦП) контроллера.
Entr StPt	Ввести заданное значение (Нажать на клавишу со стрелкой и на Enter)	Контроллер подсказывает оператору на необходимость ввести заданное значение.
LO	Пониженное напряжение в сети (Коды функций Cd27-38 не действуют, сигнал НЕ сохраняется).	Это сообщение выводится попеременно с указанием заданного значения, если напряжение сети ниже 75% от номинала.

Коды ошибок чиллеров Daikin

Код	Ошибка	Что означает
C7	ошибка связи инвертора	Ошибка связи между печатной платой инвертора (A2P) и под-контроллер PC-плата (A3P). Проверьте разъемы X3A и X12A для подключения, разъединение и другие.
80	Неисправность температуры входной охлажденной воды термистор	При температуре, отличной от -40 до 70 ° C, для 1 последовательная минута;
81	Неисправность температуры охлажденной воды на выходе термистор	При температуре, отличной от -40 до 70 ° C, для 1 последовательная минута;
82	Неисправность температуры хладагента термистор (R2-1T)	Когда температура, отличная от -43,6 до 90 ° C, обнаруживается для 1 последовательная минута;
89	Аномальное замораживание	Когда температура газообразного хладагента составляет -3,5 ° C или ниже дважды в течение 30 минут; (Время в 1 минуту после запуска компрессора замаскировано).
90	Неисправность насоса AXP	Когда насос AXP выключен на 10 минут во время работы устройства
A4	ненормальное замораживание охлажденной воды	Когда температура на выходе охлажденной воды составляет 3 ° C или ниже дважды в течение 20 минут;
E0	Защита устройства единая неисправность	Неисправный выключатель высокого давления, сжигаемый предохранитель, активация насоса реле максимального тока, активация защиты двигателя вентилятора (ВЫКЛ: 135 ° C), активация реле максимального тока для STD-компрессора и т. д.
E1	Неисправен ПК)	Когда полярность передачи одинакова или импульс PHC для защитное устройство не может быть обнаружено;
E3	Включение реле высокого давления	Во время работы устройства включается реле высокого давления. (ВЫКЛ: 3.09 МПа)
E9	Неисправность катушки электронного расширительного клапана	Когда расширительный клапан обнаружен как не подключенный в то время включения питания;
F3	Аномальная температура газа на выходе	Когда температура газа на выходе 130 ° C или выше обнаружено три раза в течение 100 минут
F4	Аномальное низкое давление	Когда обнаружено низкое давление 0,03 МПа или менее и условия для времени маскировки, частоты повторов, принудительный термостат выключен во время работы блока
H9	Неисправность термистора наружной температуры (R1T)	Когда температура, отличная от -43,6 до 90 ° C, обнаруживается для 1 последовательная минута
J3	Неисправность выпускной трубы компрессора температурный термистор (R3-1T, R3-2T)	Когда температура, отличная от -10,1 до 196 ° C, обнаруживается для 1 последовательная минута; (Что касается нижнего предельного значения, то в течение 10 минут после запуск компрессора, вышеуказанный контроль замаскирован.)
J5	Неисправность всасывающей трубы компрессора температурный термистор (R4-1T, R4-2T)	Когда температура, отличная от -43,6 до 90 (С определяется для 1 последовательная минута; (В течение 10 минут после запуска компрессора выше контроля маскируется.)
J7	Неисправность выходного канала аккумулятора температурный термистор (R6-1T)	Когда температура, отличная от -43,6 до 90 ° C, обнаруживается для 1 последовательная минута;
JA	Неисправность датчика высокого давления	Когда давление отличное от 0 до 3,5 МПа (напряжение, отличное от 0,47 до 4,0 В постоянного тока) обнаруживается в течение 1 минуты
JC	Неисправность датчика низкого давления	При давлении, отличном от -0,07 до 1,40 МПа (напряжение, отличное от 0,3 до 4,5 В постоянного тока) обнаруживается в течение 1 минуты
LC	Ошибка связи инвертора	Ошибка связи между печатной платой инвертора и главная плата контроллера
P1	Аварийный сигнал инвертора	Когда обнаруживаются открытая фаза и дисбаланс источника питания на печатной плате инвертора
U0	Неисправность дефицита газа	При низком давлении 0,1 МПа или менее для 30 последовательных минуты
U1	Неисправность фазы обратной фазы (открытая фаза)	Когда фаза электропитания обращена или открыта
U3	Ошибка связи на панели управления	Когда связь между ПКП и плата главного контроллера прерывается в течение примерно 8 секунд
U4	Ошибка ввода / вывода	Когда устройство останавливается с выключенным термистором, длится 10 минут из-за ошибки связи между основным контроллером PC-плата и дополнительная плата для ПК в течение 2 минут
U7	Ошибка передачи системы	Не используется в этом устройстве
UA	Исключительная настройка поля	Когда подключена другая модель или чрезмерное количество блоки подключены; Использование пульта дистанционного управления отключает любую групповую операцию в сочетание инверторного чиллера и средне- и малогабаритных чиллер (например, тип только для охлаждения и тип теплового насоса). Неисправность предупреждается «индикацией UA».
UE	Ошибка передачи между I / F P.C. Board и централизованный контроллер	Ошибка связи между ПЛК ввода / вывода (опция) и централизованным контроллером
UH	Неисправность системы	Когда плата основного контроллера чиллера INV подключена к линии In / Out

Коды ошибок чиллеров Danfoss

Ошибка	Значение
Ошибка 2 (error 2, ERR2, AL2, W2)	Низкий уровень сигнала внешнего источника задания частоты
Ошибка 4 (error 4, ERR4, AL4, W4)	Низкий уровень напряжения одной или нескольких линий на входе преобразователя
Ошибка 5 (error 5, ERR5, AL5, W5)	Уровень напряжения цепи постоянного тока выпрямителя выше уставки
Ошибка 6 (error 6, ERR6, AL6, W6)	Уровень напряжения цепи постоянного тока выпрямителя ниже уставки
Ошибка 7 (error 7, ERR7, AL7, W7)	Высокий уровень напряжения цепи постоянного тока выпрямителя
Ошибка 8 (error 8, ERR8, AL8, W8)	Низкий уровень напряжения цепи постоянного тока выпрямителя
Ошибка 9 (error 9, ERR9, AL9, W9)	Перегрузка инвертора
Ошибка 10 (error 10, ERR10, AL10, W10)	Перегрузка электродвигателя
Ошибка 11 (error 11, ERR11, AL11, W11)	Перегрев двигателя, неисправность термистора двигателя
Ошибка 12 (error 12, ERR12, AL12, W12)	Ток на выходе выше уставки
Ошибка 13 (error 13, ERR13, AL13, W13)	Перегрузка
Ошибка 14 (error 14, ERR14, AL14, W14)	Короткое замыкание на землю
Ошибка 15 (error 15, ERR15, AL15, W15)	Неисправность системы питания
Ошибка 16 (error 16, ERR16, AL16, W16)	Короткое замыкание на выходе преобразователя Danfoss
Ошибка 17 (error 17, ERR17, AL17, W17)	Таймаут соединения
Ошибка 18 (error 18, ERR18, AL18, W18)	Таймаут соединения2
Ошибка 33 (error 33, ERR33, AL33, W33)	Выходная частота выше уставки
Ошибка 35 (error 35, ERR35, AL35, W35)	Неисправность коммутирующего устройства на входе инвертора
Ошибка 36 (error 36, ERR36, AL36, W36)	Перегрев частотного преобразователя
Ошибка 37 (error 37, ERR37, AL37, W37)	Внутренняя ошибка
Ошибка 38 (error 38, ERR38, AL38, W38)	Внутренняя ошибка
Ошибка 39 (error 39, ERR39, AL39, W39)	Внутренняя ошибка
Ошибка 40 (error 40, ERR40, AL40, W40)	Внутренняя ошибка
Ошибка 41 (error 41, ERR41, AL41, W41)	Внутренняя ошибка
Ошибка 42 (error 42, ERR42, AL42, W42)	Внутренняя ошибка
Ошибка 43 (error 43, ERR43, AL43, W43)	Внутренняя ошибка
Ошибка 44 (error 44, ERR44, AL44, W44)	Внутренняя ошибка
Ошибка 45 (error 45, ERR45, AL45, W45)	Внутренняя ошибка

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Обслуживание и ремонт чиллеров – процедура не дешевая, но при своевременном принятии решения эти затраты можно снизить. Вы можете обратиться в компанию «Градиент» и проводить техническое обслуживание и диагностику холодильных машин на постоянной основе. Это позволит предотвратить большинство неисправностей оборудования. Оказываем услуги по доступным ценам по всей России.

Типичные ошибки чиллера

Инженерное оборудование имеет подробную инструкцию по использованию, где можно посмотреть коды ошибок чиллера. Если вам сложно разобраться самостоятельно, вы всегда можете воспользоваться помощью наших специалистов. Опытные мастера устранят ошибки чиллеров carrier, clivet, york, trane, lessar, aermec, wesper и др.

К наиболее распространенным неисправностям относятся:

Контроллер хладоносителя показывает несоответствие действующей рабочей точки и рекомендованной производителем. Если вовремя не отремонтировать технику, возможно самопроизвольное перепрограммирование, замерзание воды в испарителе, разрыв пластин теплообменника.
Аварийный сигнал при утечке фреона требует настройки реле. Иначе снижается температура кипения, вода замерзает и теплообменник лопается.
Вентилятор перегревается или перемерзает и выходит из строя, в результате чего возникает авария. Не стоит повышать давление реле выше рекомендованного производителем показателя. Иначе появляется риск повреждения контура фреона, и аппарат выходит из строя.
Ошибка чиллера может возникнуть, если не очищать сеточку фильтра. Тогда теплообменник загрязняется, а давление падает. Оборудование может полностью перестать функционировать.
Насос без тепловой защиты может перегреваться, поэтому нужно перекрыть его к охладителю, чего требует инструкция к оборудованию.
При прекращении подачи хладоносителя необходимо отключать насос. Просто перекрыть краны недостаточно, должно быть автоматическое реле, которое предотвратит сбои в системе. Код ошибки чиллера говорит о том, что охлаждаемая жидкость не поступает, фреон выкипает. Из-за этого могут лопнуть пластины.
Как подстроить реле низкого давления

Если ошибка чиллера выдает «Пониженное давление фреона», необходимо подстроить показатель. Для этого сначала нужно удостовериться, что в аппарате достаточный уровень фреона. Для удобства внутри установки расположен смотровой глазок.

Если он остается прозрачным во всех режимах работы, заправка находится на оптимальном уровне. Если же проскакивают пузыри или есть пена, нужна дозаправка системы. В норме в процессе подстройки снимается защитная крышка и пластина фиксации. Винт регулировки поворачивают против часовой стрелки на один оборот, так значение уменьшается на 1-1,5 бар.

К основным причинам срабатывания ошибки низкого давления относятся:

утечка хладагента;
низкий уровень расхода воды;
сбои датчика температуры;
неправильная работа ТРВ.

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µchiller 3

User manual

We wish to save you time and money!

We can assure you that the thorough reading of this manual will guarantee correct installation and safe use of the product described.

IMPORTANT WARNINGS

CONTENTS

1. Introduction

1.1 General description

1.2 User interface

1.3 Programming procedure

2. pGD0 terminal

2.1 Passwords and levels of access

2.2 Type of connectors

3. Applications

3.1 AIR/AIR units, single circuit

3.2 AIR/AIR units, two circuits

3.3 AIR/AIR units, two circuits, 1 condenser fan circuit

3.4 AIR/AIR heat pumps, single circuit

3.5 AIR/AIR heat pumps, two circuits

3.6 AIR/AIR heat pumps, two circuits, 1 condenser fan circuit

3.7 AIR/AIR chillers, single circuit

3.8 AIR/AIR chillers, two circuits, 2 condenser fan circuits and 2 evaporators

3.9 AIR/WATER chillers, two circuits, 1 condenser fan circuit

3.10 AIR/WATER heat pumps, single circuit

3.11 AIR/WATER heat pumps, 2 condenser fan circuits

3.12 AIR/WATER heat pumps, two circuits, 1 condenser fan circuit

3.13 WATER/WATER chillers, single circuit

3.14 WATER/WATER chillers, two circuits

3.15 WATER/WATER chillers, two circuits, 2 evaporators

3.16 WATER/WATER heat pumps with reversal on the refrigerant circuit, single circuit

3.17 WATER/WATER heat pumps with reversal on the refrigerant circuit, two circuits

3.18 WATER/WATER heat pumps with reversal on the refrigerant circuit, two circuits, 1 evaporator

3.19 WATER/WATER heat pumps with reversal on the water circuit, single circuit

3.20 WATER/WATER heat pumps with reversal on the water circuit, two circuits, H02= 1 and H21= 4

3.21 WATER/WATER heat pumps with reversal on the water circuit, two circuits, 1 evaporator H02= 1 and H21= 4

3.22 Air-cooled condensing unit without reverse cycle, single circuit

3.23 Air-cooled condensing unit without reverse cycle, two circuits

3.24 Reverse-cycle air-cooled condensing unit, single circuit

3.25 Reverse-cycle air-cooled condensing unit, two circuits with condenser fan circuit

3.26 Water-cooled condensing unit without reverse cycle, single circuit

3.27 Water-cooled condensing unit without reverse cycle, two circuits

3.28 Reverse-cycle water-cooled condensing unit, single circuit

3.29 Reverse-cycle water-cooled condensing unit, two circuits

4. Parameters

4.1 Menu layout

4.2 List of parameters with the pLD user interface

4.3 List of parameters with the pGD user interface

5. Connections

DC power supply Power supply for VZC synchronism

The addressing of the EVD400 driver units that can be connected to the pLAN network must be set as following:

ADDRESS 2 — > Circuit 1 Chiller Driver or Circuit 1 Bidirectional Driver

ADDRESS 3 — > Circuit 1 Heat Pump Driver

ADDRESS 4 — > Circuit 2 Chiller Driver or Circuit 2 Bidirectional Driver

ADDRESS 5 — > Circuit 2 Heat Pump Driver

The driver should be configured using the serial addressing tool EVD4_UI Address that can be downloaded from CAREL website http: // ksa . carel . com/ .

For further details on the use of the Driver and its configuration please refer to the manual code +030220225.pdf (EVD4 – User manual)

6. Description of the main functions

6.1 Control set point

6.2 Inlet-room temperature control

7. Description of operation

Temperature control proportional to the reading of the evaporator inlet probe

Semi-hermetic compressors with proportional control

7.1 Outlet temperature control

Temperature control with dead zone based on the reading of the outlet probe

7.2 Differential Temperature Control

7.3 Condensing unit control

7.4 Compressor rotation

7.5 TANDEM – TRIO compressor rotation

7.6 Compressor safety times

CREQ

CMP t[s]

MONT

t[s]

CREQ

CMP t[s] t[s]

MOFFT

7.7 Pumpdown management

7.8 Main pump management

7.9 Pump rotation

7.10 Electric heaters