Carel pCO2 Series User manual

Program for pCO¹ pCO2 and pCOC
Modular Standard HP Chiller
1/4 screw compressor with Carel driver
Manual version 1.0 – 25 September 2003
Program code: FLSTDmMSDE

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We can assure you that reading this manual to the full will ensure correct installation and safe use of the product described here.
IMPORTANT WARNINGS
BEFORE INSTALLING OR CARRYING OUT ANY JOBS ON THE APPLIANCE, CAREFULLY READ AND FOLLOW THE
INSTRUCTIONS IN THIS MANUAL.
The appliance to which this software is dedicated was built to operate without risks for the intended purposes, providing:
• software installation, programming, operational control and maintenance must be carried out by qualified personnel according to the
instructions in this manual;
• all the conditions prescribed and contained in the installation and use manual of the application in question are observed.
All uses other than this use and the making of modifications, not expressly authorised by the manufacturer, are considered improper.
The user shall be exclusively responsible for injuries and damage caused through improper use.

CONTENT
1APPLICATIONS AND FUNCTIONS PERFORMED BY THE SOFTWARE........................................................................................3
2THE USER TERMINAL............................................................................................................................................................................... 4
3PLAN MANAGEMENT AMONG CARDS.................................................................................................................................................6
3.1 HOW TO ASSIGN THE PLAN ADDRESSES....................................................................................................................................... 6
4INSTALLING DEFAULT VALUES............................................................................................................................................................7
5SELECTING THE LANGUAGE ................................................................................................................................................................. 7
6LIST OF INPUTS/OUTPUTS.......................................................................................................................................................................8
6.1 CHILLER-ONLY UNIT - MACHINE TYPE “0”................................................................................................................................... 8
6.2 CHILLER UNIT + HEAT PUMP – MACHINE TYPE “1”..................................................................................................................... 9
6.3 CHILLER UNIT WITH FREECOOLING – MACHINE TYPE “2”..................................................................................................... 10
6.4 CHILLER-ONLY UNIT – MACHINE TYPE “3”................................................................................................................................. 11
6.5 CHILLER UNIT + HEAT PUMP WITH GAS REVERSING – MACHINE TYPE “4”....................................................................... 12
6.6 CHILLER UNIT + HEAT PUMP WITH WATER REVERSING – MACHINE TYPE “5”................................................................. 13
7LIST OF PARAMETERS ........................................................................................................................................................................... 14
8SCREENS..................................................................................................................................................................................................... 19
8.1 LIST OF SCREENS............................................................................................................................................................................... 19
9ELECTRONIC EXPANSION VALVE...................................................................................................................................................... 20
9.1 DRIVER PARAMETERS...................................................................................................................................................................... 20
9.2 SPECIAL FUNCTION "IGNORE"........................................................................................................................................................ 21
10 CONTROL................................................................................................................................................................................................ 22
10.1 INLET TEMPERATURE CONTROL ............................................................................................................................................................ 22
10.2 OUTLET TEMPERATURE CONTROL......................................................................................................................................................... 23
10.3 CONTROL OF WATER /WATER CHILLER ONLY UNITS.............................................................................................................................. 23
10.4 CONTROL OF WATER/WATER CHILLER UNIT WITH GAS REVERSING HEAT PUMP....................................................................................... 24
10.5 CONTROL OF WATER/WATER CHILLER UNIT WITH WATER REVERSING HEAT PUMP.................................................................................. 24
11 TYPES OF CONTROLLED COMPRESSORS .................................................................................................................................... 25
11.1 STEPPED CAPACITY CONTROL............................................................................................................................................................... 25
11.2 STEPPED CAPACITY CONTROL WITH CONTROL AT INLET ........................................................................................................................ 26
11.3 STEPPED CAPACITY CONTROL WITH CONTROL AT OUTLET ..................................................................................................................... 26
11.4 CONTINUOUS CAPACITY CONTROL........................................................................................................................................................ 27
11.5 CONTINUOUS CAPACITY CONTROL WITH CONTROL AT OUTLET .............................................................................................................. 28
12 COMPRESSOR ROTATION................................................................................................................................................................. 29
13 STARTING A SINGLE COMPRESSOR.............................................................................................................................................. 30
13.2 STARTING THE COMPRESSOR MOTOR .................................................................................................................................................... 30
13.3 COMPRESSOR START RESTRICTIONS...................................................................................................................................................... 30
14 FORCED CAPACITY CONTROL........................................................................................................................................................ 31
15 SOLENOID-VALVE MANAGEMENT................................................................................................................................................. 32
16 PUMP-DOWN.......................................................................................................................................................................................... 32
17 CONDENSATION CONTROL .............................................................................................................................................................. 33
17.1 ON/OFF CONDENSATION LINKED TO OPERATION OF COMPRESSOR:...................................................................................................... 33
17.2 ON/OFF CONDENSATION LINKED TO PRESSURE OR TEMPERATURE SENSOR :........................................................................................ 33
17.3 MODULATING CONDENSATION LINKED TO PRESSURE OR TEMPERATURE SENSOR :.................................................................................. 33
17.4 PREVENT FUNCTION:............................................................................................................................................................................ 33
18 DEFROSTING CONTROL FOR WATER/AIR MACHINES............................................................................................................ 34
18.1 TYPES OF DEFROSTING ......................................................................................................................................................................... 34
18.2 TYPE OF DEFROSTING START/END......................................................................................................................................................... 34
18.3 DEFROSTING A CIRCUIT WITH TIME/TEMPERATURE CONTROL ................................................................................................................ 34
18.4 DEFROSTING A CIRCUIT WITH TIME/PRESSURE SWITCHES CONTROL ....................................................................................................... 34
18.5 OPERATION OF FANS DURING THE DEFROSTING STAGE .......................................................................................................................... 34

19 FREE COOLING CONTROL................................................................................................................................................................ 35
19.2 FREE COOLING ACTIVATION CONDITION............................................................................................................................................... 35
19.3 FREE COOLING THERMOSTAT............................................................................................................................................................... 36
19.4 FREE COOLING DISABLING CONDITIONS................................................................................................................................................ 37
19.5 FREE COOLING ON/OFF VALVE .......................................................................................................................................................... 37
19.6 FREE COOLING ON/OFF VALVE WITH STEPPED CONDENSATION........................................................................................................... 38
19.7 FREE COOLING ON/OFF VALVE WITH INVERTER CONTROLLED CONDENSATION ................................................................................... 39
19.8 0-10 VOLT FREE COOLING ON/OFF VALVE ........................................................................................................................................ 40
19.9 0-10 VOLT FREE COOLING ON/OFF VALVE WITH STEPPED CONDENSATION ......................................................................................... 40
19.10 0-10 VOLT FREE COOLING VALVE WITH INVERTER CONTROLLED CONDENSATION................................................................................. 41
20 ALARMS .................................................................................................................................................................................................. 43
20.1 SERIOUS ALARMS................................................................................................................................................................................. 43
20.2 CIRCUIT ALARMS ................................................................................................................................................................................. 43
20.3 WARNING ONLY ALARMS ..................................................................................................................................................................... 43
20.4 PRESSURE DIFFERENTIAL ALARM MANAGEMENT................................................................................................................................... 43
20.5 ANTIFREEZE CONTROL ......................................................................................................................................................................... 44
20.6 PCO ALARMS TABLE............................................................................................................................................................................ 45
20.7 DRIVER CARD ALARMS......................................................................................................................................................................... 45
21 ALARM LOG........................................................................................................................................................................................... 46
21.1 STANDARD LOG ................................................................................................................................................................................... 46
21.2 ADVANCED LOG................................................................................................................................................................................... 46
21.3 LIST OF ALARM LOG CODES .................................................................................................................................................................. 47
21.4 SHORT SUMMARY OF ALARMS COMING FROM DRIVER ........................................................................................................................... 48
22 SUPERVISOR.......................................................................................................................................................................................... 49

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 3
1 APPLICATIONS AND FUNCTIONS PERFORMED BY THE SOFTWARE
Type of control unit
AIR / WATER CHILLER
• Chiller only
• Chiller + Heat pump
• Chiller + Freecooling
WATER / WATER CHILLER
• Chiller only
• Chiller + Heat pump with gas reversing
• Chiller + Heat pump with water reversing
Type of control
Proportional or proportional + integral control on the evaporator water inlet temperature probe.
Time control of the neutral zone on the evaporator water outlet temperature probe.
Types of compressors
Screw compressors with 4 capacity control steps
Screw compressors with continuous duty capacity control.
Maximum number of compressors
From 1 to 4 with a maximum of 4 capacity control steps (1 compressor for every pCO*)
From 1 to 4 with continuous duty capacity control. (1 compressor for every pCO*)
Compressor duty call rotation
Rotation of all compressors to FIFO logic for stepped and continuous duty capacity control.
Condensation
Condensation can be performed according to temperature, pressure or ON/OFF
Fan management in stepped mode or with 0/10 Volt proportional signal
Type of defrosting
Overall defrosting of all pCO units connected to network: Independent/Simultaneous/Separate
Safety devices for all refrigerating circuits
High pressure (pressure switch/transducer)
Low pressure (pressure switch/transducer)
Oil/Oil Level differential pressure switch
Compressor thermal cutout
Thermal cutout for condensation fan
High delivery temperature to compressor
Pressure differential alarm
Antifreeze alarm
System Safety devices
Serious alarm input (shuts down entire unit)
Flow-switch input for evaporator/condenser (shuts down entire unit)
Pump thermal cutout input (shuts down entire unit)
Remote ON/OFF input.
Other functions
Alarms logging
Built-in terminal management (on pCO² only)
Management of ratiometric probes for pressure control (on pCO1only)
EVD driver for piloting the EXV valve.
Multilingual management.
Accessories
Supervision with serial card RS485 (CARE1 or MODBUS protocol)

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 4
2 THE USER TERMINAL
The specified terminal has an LCD display (4 lines over 20 columns) and can be of two types: on board a built-in card with only 6 keys or
external (connected by telephone cable) with 15 keys. All operations possible with the program can be carried out with both types. With the user
terminal you can view the unit's operating conditions at all times and modify parameters. The terminal can be disconnected from the basic card -
in fact it need not be present at all.
2.1.1 BELOW-KEY LEDS
Three LEDs are located under the rubber keys of the EXTERNAL terminal, and four under the keys of the Built-in card. They respectively
indicate the following:
ON/OFF key (External display) When green the LED indicates that the unit is ON; it flashes in OFF status from the supervisor or
remote digital input
ENTER key (External display) Yellow LED: the instrument is correctly powered
ALARM key (common) Red LED - alarms are present
ENTER key (Built-in display) Yellow LED: see ON/OFF Key (external display)
PROG key (Built-in display) Green LED: you are in a branch of masks, other than the Menu
ESC key (Built-in display) Green LED: you are in the Menu masks branch
2.1.2 EXTERNAL DISPLAY
How to use the keys on the external terminal
Key Description
MENU
if pressed in all loops except Costr., you return to the main mask of the Menu (MU) branch
if pressed in the Constructor loops, you return to the mask selected by the constructor
The Menu branch displays the status of the unit, the reading of the control probes, and the current
type of operation indicated by CH or HP (meaning chiller or heat pump respectively) in the
bottom right corner).
SERVICING Sends you to the first screen of the Maintenance loop (A0)
The maintenance loop makes it possible to check the state of the devices and probes, and to
maintain and adjust them, and to run the Manual procedure
PRINTER Temporary display of the pLAN address of the displayed card
INPUTS
AND OUTPUTS
Sends you to the first mask of the I/O loop (I0)
The I/O loop displays the state of the digital and analogue inputs and outputs
CLOCK Sends you to the first screen of the Clock loop (K0)
The clock loop is used for displaying / programming time and date
SET-POINT Sends you to the screen for setting the temperature set-points (SU)
The loop displays and sets also the winter operation set-point.
PROGRAM Sends you to the screen for inputting the user password (PU)
The user loop is used for displaying / programming the unit's parameters
+ MENU+PROG Sends you to the mask for inputting the constructor's Password (ZU)
The constructor loop enables configuration of type of unit and selection of connected devices and
enabled functions.
INFO
If pressed in the shared terminal, it switches the displayed card
RED With the unit OFF, it enables winter operation in machine configurations 4 and 5.
BLUE With the unit OFF, it enables summer operation in machine configurations 4 and 5.

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 5
How to use the silicone rubber keys:
1. ON/OFF key: for switching the unit on and off.
2. ALARM key: to view the alarms on the display, cancel them and silence the
alarm buzzer
3. UP ARROW: has two functions: 1 it scrolls through the previous screens of the
same branch when the cursor is in home position; 2 it increases the value of a
settings field, when the cursor is over that field; if a selection field is involved, if
you press the arrow key, the previous associated text is shown
4. DOWN ARROW has two functions: 1 it scrolls through the next screens of the
same branch when the cursor is in home position; 2 it reduces the value of a
settings field, when the cursor is over that field; if a selection field is involved, if
you press the arrow key, the next associated text is shown
5. ENTER key: this is used for moving the cursor between the home position and
the settings or selection fields, and for saving the values of the set parameters after
the cursor has exited the settings fields.
2.1.3 BUILT-IN DISPLAY
For advice on using keys Alarm, Up Arrow, Down Arrow, and Enter in the Built-in terminal, see the external terminal
PRG + ENTER keys: temporary display of the pLAN address of the displayed card.
POWER-UP: as there is no ON/OFF key, the unit is powered up and down by pressing the Esc+Enter keys simultaneously for 20 sec. After
that, a screen appears from which the operation can be performed with the Enter key.
SCREEN LOOP: as there are no keys which directly input in the mask loop, press the Prog key to show the loop list. Then use the arrow keys
to locate in line with the selected loop and then press Enter to access it.
ALARM PROG ESC
UP DOWN ENTER
built-in terminal

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 6
3 PLAN MANAGEMENT AMONG CARDS
The pLAN network identifies a physical connection between the cards (pCO1 pCO2 or pCOC) and the external terminals.
pLAN=pCO Local Area Network. The purpose of the pLAN network connection between the cards is to exchange variables among the cards
with a logic decided by the program, in order to make the cards work together functionally.
The variables exchanged among the cards have already been established by the program, and likewise their direction of origin and destination.
Therefore, the user does not have to set them, but has only make the electrical connections.
3.1 HOW TO ASSIGN THE PLAN ADDRESSES
The pLAN addresses are set with binary logic, changing the position of a group of dip-switches located at the back of the external terminals, on
the pCO2 cards (see figure below) and inside the drivers of the electronic valves, with all the devices powered down. In pCO1, the address is
numeric and is assigned in a different way from an external terminal.
3.1.1 pCO1 ADDRESSING
Here is a description of the operations necessary for addressing pLAN from the pCO1 cards.
1. Power down the pCO1 card and connect an external terminal to the pLAN "0" address.
2. Power up the pCO1 card, by holding down the Alarm + Up keys until a mask appears
3. When the mask is shown, perform the indicated operations, i.e. insert the numeric (1,2,3…) pLAn address with the Up and Down keys
and then confirm by pressing Enter.
4. Power down the pCO1 card.
5. If necessary, assign the correct pLAN address to the external terminal if specified.
6. Power up the pCO1 card.
3.1.2 ADDRESSING PCO2, EXTERNAL TERMINALS AND VALVE DRIVERS
The following are the addresses to be set on the pCO2 cards, external terminals and valve drivers. If you are using the pCO1 cards, consult the
previous paragraph for the cards only, whereas the following information does apply to the terminals and drivers.
The main Menu mask indicated on the terminals shows the address of the connected card in the bottom left-hand corner. With the ind.16
terminal, all the cards can be controlled without any need for other terminals or in addition to them. In fact, the program enables the ind.16
terminal to access the parameters of all the connected cards, one at a time. To change over from one card to another, just press the info key.
In all the other masks of the program, you can find out the address of the connected card by pressing the printer key.

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 7
4 INSTALLING DEFAULT VALUES
When you have checked the connections between the cards and terminals, power up the pCO card/s*
When the machine is powered up, the software automatically installs the default values selected by CAREL for all the chiller and driver
configuration parameters.
This section tells you how to reset default values to return to the initial conditions. Therefore, this operation need not be carried out at the first
power-up.
The following procedure is used for resetting all the in-plant configuration parameters selected by CAREL:
ATTENTION! this procedure irreversibly cancels any programming done by the user
As resetting the default values is an operation that concerns each pCO* card, if there are two or more cards, repeat the operation for each card.
The procedure is identical for all the cards.
These are the steps:
• simultaneously press the "menu" and "prog" keys of the LCD terminal (when pressed, both the LED above the "menu" key and the LED
above the "prog" key should light up).
• Input the password using the "arrow" keys and press Enter: in this way, you enter the "constructor" configuration :
+--------------------+
¦Constructor ¦
¦Input password ¦
¦ ¦
¦ 0000 ¦
+--------------------+
• press the up arrow key to rapidly reach the default values installation screen:
+--------------------+
¦Delete memory V0¦
¦Install global ¦
¦default values S¦
¦Please wait... ¦
+--------------------+
• press the "enter" key to position the cursor above the letter "N", and take it to "S" with the arrow keys. The "please wait…" words appear
immediately. They disappear after a few seconds. the default values have now been fully installed.
5 SELECTING THE LANGUAGE
When the unit is powered up, a screen appears by default, where you can select the language to be used (Italian/English - French/German).
This mask stays active for 30 seconds. When this time has elapsed, the program automatically changes over to the main menu (M0 screen)
This function can be disabled. How to disable it:
1. Go to the Program (P0 screen) branch
2. Type in the correct password.
3. Press the down arrow unit you reach the screen with reference "Pc"
4. Select "N" under item "Show language screen at start-up".
In any case, you can change the language in use at any time. To do this, go to the first screen of the "I/O" key (ref.10).

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 8
6 LIST OF INPUTS/OUTPUTS
Inputs and outputs are listed below based on unit type. A number has been associated with each type of machine. This number is the program's
main parameter because it identifies the inputs and outputs configuration. Using this list of inputs and outputs, select the number you require
from the numbers associated in the program configuration screens.
AIR/WATER UNIT WITH MAX. 4 SCREW COMPRESSORS (UP TO 4 CAPACITY STAGES PER COMPRESSOR)
6.1 CHILLER-ONLY UNIT - MACHINE TYPE “0”
6.1.1 DIGITAL INPUTS Chiller-only unit MACHINE TYPE “0”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable)
2 Evaporator Flow-switch
(enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable)
3 Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF
4 Pump Thermal cutout Pump Thermal cutout Pump Thermal cutout
5 Low Pressure 2 Pressure-
switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch
6 Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level
7 Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable)
8 Double Set-point Double Set-point Double Set-point
9 Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout
10 Fan 2 Thermal cutout Fan 2 Thermal cutout Fan 2 Thermal cutout Fan 2 Thermal cutout Fan 2 Thermal cutout Fan 2 Thermal cutout
11 High Pressure Pressure-
switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch
12 Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout
6.1.2 ANALOGUE INPUTS Chiller-only unit MACHINE TYPE “0”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Water temperature at
Evaporator Inlet High Pressure High Pressure Water temperature at Evaporator Inlet
2 Water temperature at
Evaporator Outlet Water temperature at Evaporator Outlet Low Pressure Low Pressure Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet
3 Delivery Temperature Delivery Temperature Delivery Temperature Delivery Temperature Condenser Temperature Condenser Temperature
4 Voltage / Current / External
Set-point Voltage / Current
5 Condenser Temperature Condenser Temperature Water temperature at
Evaporator Inlet Voltage / Current / External Set-point Voltage / Current
6 Voltage / Current / External
Set-point Voltage / Current Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet Delivery Temperature Delivery Temperature
7 High Pressure High Pressure Condenser Temperature Condenser Temperature High Pressure High Pressure
8 Low Pressure Low Pressure Low Pressure Low Pressure
6.1.3 DIGITAL OUTPUTS Chiller-only unit MACHINE TYPE “0”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Circulation Pump Circulation Pump Circulation Pump
2 Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor
3 Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor
4 Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor
5 Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid
6 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1
7 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2
8 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3
9 Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler
10 Antifreeze Heater Antifreeze Heater Antifreeze heater C 1 Antifreeze Heater Antifreeze Heater Antifreeze Heater
11 General Alarm General Alarm General Alarm General Alarm General Alarm General Alarm
12 Fan 1 Fan 1 Fan 1 Fan 1 Fan 1 Fan 1
13 Fan 2 Fan 2 Fan 2 Fan 2 Fan 2 Fan 2
6.1.4 ANALOGUE OUTPUTS Chiller-only unit MACHINE TYPE “0”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Speed Controller Speed Controller Speed Controller Speed Controller Speed Controller Speed Controller
2

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 9
6.2 CHILLER UNIT + HEAT PUMP – MACHINE TYPE “1”
6.2.1 DIGITAL INPUTS Chiller unit + heat pump MACHINE TYPE “1”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable)
2 Evaporator Flow-switch
(enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable)
3 Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF
4 Pump Thermal cutout Pump Thermal cutout Pump Thermal cutout
5 Low Pressure Pressure-
switch 1 Low Pressure Pressure- switch 2 Low Pressure Pressure- switch 1 Low Pressure Pressure- switch 2 Low Pressure Pressure- switch 1 Low Pressure Pressure- switch 2
6 Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level
7 Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable)
8 Double Set-point Double Set-point Double Set-point
9 Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout
10 Summer / Winter Summer / Winter Summer / Winter
11 High Pressure Pressure-
switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch
12 Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout
6.2.2 ANALOGUE INPUTS Chiller unit + heat pump MACHINE TYPE “1”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Water temperature at
Evaporator Inlet High Pressure High Pressure Water temperature at Evaporator Inlet
2 Water temperature at
Evaporator Outlet Water temperature at Evaporator Outlet Low Pressure Low Pressure Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet
3 Delivery Temperature Delivery Temperature Delivery Temperature Delivery Temperature Condenser Temperature Condenser Temperature
4 Voltage / Current / External
Set-point Voltage / Current
5 Condenser Temperature Condenser Temperature Water temperature at
Evaporator Inlet Voltage / Current / External Set-point Voltage / Current
6 Voltage / Current / External
Set-point Voltage / Current Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet Delivery Temperature Delivery Temperature
7 High Pressure High Pressure Condenser Temperature Condenser Temperature High Pressure High Pressure
8 Low Pressure Low Pressure Low Pressure Low Pressure
6.2.3 DIGITAL OUTPUTS Chiller unit + heat pump MACHINE TYPE “1”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Circulation Pump Circulation Pump Circulation Pump
2 Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor
3 Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor
4 Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor
5 Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid
6 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1
7 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2
8 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3
9 Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler Liquid inj./Econ/Oil Cooler
10 Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater
11 General Alarm General Alarm General Alarm General Alarm General Alarm General Alarm
12 4-wayValve 4-wayValve 4-wayValve 4-wayValve 4-wayValve 4-wayValve
13 Fan 1 Fan 1 Fan 1 Fan 1 Fan 1 Fan 1
6.2.4 ANALOGUE OUTPUTS Chiller unit + heat pump MACHINE TYPE “1”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1
2 Speed Controller Speed Controller Speed Controller Speed Controller Speed Controller Speed Controller

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 10
6.3 CHILLER UNIT WITH FREECOOLING – MACHINE TYPE “2”
6.3.1 DIGITAL INPUTS Chiller unit with freecooling MACHINE TYPE “2”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable)
2 Evaporator Flow-switch
(enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable)
3 Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF
4 Pump Thermal cutout Pump Thermal cutout Pump Thermal cutout
5 Low Pressure 2 Pressure-
switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch
6 Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level
7 Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable)
8 Double Set-point Double Set-point Double Set-point
9 Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout Fan 1 Thermal cutout
10 Fan 2 Thermal cutout Fan 2 Thermal cutout Fan 2 Thermal cutout Fan 2 Thermal cutout Fan 2 Thermal cutout Fan 2 Thermal cutout
11 High Pressure Pressure-
switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch
12 Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout
6.3.2 ANALOGUE INPUTS Chiller unit with freecooling MACHINE TYPE “2”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Water temperature at
Evaporator Inlet High Pressure High Pressure Water temperature at Evaporator Inlet
2 Water temperature at
Evaporator Outlet Water temperature at Evaporator Outlet Low Pressure Low Pressure Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet
3 Delivery Temperature Delivery Temperature Delivery Temperature Delivery Temperature Outside Air Temperature
4 Water Temperature at
Freecooling Inlet Voltage / Current / External Set-point Voltage / Current Water Temperature at Freecooling Inlet
5 Outside Air Temperature Water temperature at
Evaporator Inlet Voltage / Current / External Set-point Voltage / Current
6 Voltage / Current / External
Set-point Voltage / Current Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet Delivery Temperature Delivery Temperature
7 High Pressure High Pressure Outside Air Temperature High Pressure High Pressure
8 Low Pressure Low Pressure Water Temperature at
Freecooling Inlet Low Pressure Low Pressure
6.3.3 DIGITAL OUTPUTS Chiller unit with freecooling MACHINE TYPE “2”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Circulation Pump Circulation Pump Circulation Pump
2 Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor
3 Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor
4 Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor
5 Liquid Solenoid Liquid solenoid C 2 Liquid Solenoid Liquid solenoid C 2 Liquid Solenoid Liquid solenoid C 2
6 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1
7 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2
8 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3
9 Fan 2 Fan 2 Fan 2 Fan 2 Fan 2 Fan 2
10 Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater
11 General Alarm General Alarm General Alarm General Alarm General Alarm General Alarm
12 Fan 1 Fan 1 Fan 1 Fan 1 Fan 1 Fan 1
13 Freecooling ON/OFF Valve Freecooling ON/OFF Valve Freecooling ON/OFF Valve
6.3.4 ANALOGUE OUTPUTS Chiller unit with freecooling MACHINE TYPE “2”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Speed Controller Speed Controller Speed Controller Speed Controller Speed Controller Speed Controller
2 3-way Freecooling Valve 3-way Freecooling Valve 3-way Freecooling Valve

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 11
WATER/WATER UNIT WITH MAX. 4 SCREW COMPRESSORS (UP TO 4 CAPACITY STAGES PER COMPRESSOR)
6.4 CHILLER-ONLY UNIT – MACHINE TYPE “3”
6.4.1 DIGITAL INPUTS Chiller-only unit MACHINE TYPE “3”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable) Serious alarm (enablable)
2 Evaporator Flow-switch
(enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable)
3 Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF
4 Evaporator Pump thermal
Cutout Evaporator Pump thermal Cutout Evaporator Pump thermal Cutout
5 Low Pressure 2 Pressure-
switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch Low Pressure 2 Pressure- switch
6 Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level Differential / Oil Level
7 Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable)
8 Double Set-point Double Set-point Double Set-point
9 Evaporator Flow-switch
(Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable)
10 Condenser Pump thermal
Cutout Condenser Pump thermal Cutout Condenser Pump thermal Cutout
11 High Pressure Pressure-
switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch High Pressure Pressure- switch
12 Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout
6.4.2 ANALOGUE INPUTS Chiller-only unit MACHINE TYPE “3”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Water temperature at
Evaporator Inlet High Pressure High Pressure Water temperature at Evaporator Inlet
2 Water temperature at
Evaporator Outlet Water temperature at Evaporator Outlet Low Pressure Low Pressure Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet
3 Delivery Temperature Delivery Temperature Delivery Temperature Delivery Temperature Water Temperature at
Condenser Inlet
4 Water temperature at
Condenser Outlet Water temperature at Condenser Outlet Voltage / Current / External Set-point Voltage / Current Water temperature at Condenser Outlet Water temperature at Condenser Outlet
5 Water Temperature at
Condenser Inlet Water temperature at Evaporator Inlet Voltage / Current / External Set-point Voltage / Current
6 Voltage / Current / External
Set-point Voltage / Current Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet Delivery Temperature Delivery Temperature
7 High Pressure High Pressure Water Temperature at
Condenser Inlet High Pressure High Pressure
8 Low Pressure Low Pressure Water temperature at
Condenser Outlet Water temperature at Condenser Outlet Low Pressure Low Pressure
6.4.3 DIGITAL OUTPUTS Chiller-only unit MACHINE TYPE “3”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Evaporator Pump Evaporator Pump Evaporator Pump
2 Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor
3 Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor
4 Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor
5 Liquid Solenoid Liquid solenoid C 2 Liquid Solenoid Liquid solenoid C 2 Liquid Solenoid Liquid solenoid C 2
6 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1
7 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2
8 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3
9 Liquid Inj. / Econ. / Oil
Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler
10 Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater
11 General Alarm General Alarm General Alarm General Alarm General Alarm General Alarm
12 Condenser Pump Condenser Pump Condenser Pump
13
6.4.4 ANALOGUE OUTPUTS Chiller-only unit MACHINE TYPE “3”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1
2

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 12
6.5 CHILLER UNIT + HEAT PUMP WITH GAS REVERSING – MACHINE TYPE “4”
6.5.1 DIGITAL INPUTS Chiller unit + heat pump with gas reversing MACHINE TYPE “4”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Serious alarm (Enablable) Serious alarm (Enablable) Serious alarm (Enablable) Serious alarm (Enablable) Serious alarm (Enablable) Serious alarm (Enablable)
2 Evaporator Flow-switch
(enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable)
3 Remote ON/OFF Remote ON/OFF Remote ON/OFF
4 Evaporator Pump thermal
Cutout Evaporator Pump thermal Cutout Evaporator Pump thermal Cutout
5 Low Pressure Pressure-
switch Low Pressure Pressure- switch Low Pressure Pressure- switch Low Pressure Pressure- switch Low Pressure Pressure- switch Low Pressure Pressure- switch
6 Oil 1 differential / Oil Level Oil 2 differential / Oil Level Oil 1 differential / Oil Level Oil 2 differential / Oil Level Oil 1 differential / Oil Level Oil 2 differential / Oil Level
7 Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable)
8 Double Set-point Double Set-point Double Set-point
9 Evaporator Flow-switch
(Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable)
10 Summer / Winter Summer / Winter Summer / Winter
11 High pressure pressure-
switch High pressure pressure- switch High pressure pressure- switch High pressure pressure- switch High pressure pressure- switch High pressure pressure- switch
12 Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout
6.5.2 ANALOGUE INPUTS
Chiller unit + heat pump with gas reversing MACHINE TYPE “4”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Water temperature at
Evaporator Inlet High Pressure High Pressure Water temperature at Evaporator Inlet
2 Water temperature at
Evaporator Outlet Water temperature at Evaporator Outlet Low Pressure Low Pressure Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet
3 Delivery Temperature Delivery Temperature Delivery Temperature Delivery Temperature Water Temperature at
Condenser Inlet
4 Water temperature at
Condenser Outlet Water temperature at Condenser Outlet Voltage / Current / External Set-point Voltage / Current Water temperature at Condenser Outlet Water temperature at Condenser Outlet
5 Water Temperature at
Condenser Inlet Water temperature at Evaporator Inlet Voltage / Current / External Set-point Voltage / Current
6 Voltage / Current / External
Set-point Voltage / Current Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet Delivery Temperature Delivery Temperature
7 High Pressure High Pressure Water Temperature at
Condenser Inlet High Pressure High Pressure
8 Low Pressure Low Pressure Water temperature at
Condenser Outlet Water temperature at Condenser Outlet Low Pressure Low Pressure
6.5.3 DIGITAL OUTPUTS
Chiller unit + heat pump with gas reversing MACHINE TYPE “4”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Evaporator Pump Evaporator Pump Evaporator Pump
2 Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor
3 Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor
4 Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor
5 Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid
6 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1
7 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2
8 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3
9 Liquid Inj. / Econ. / Oil
Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler
10 Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater
11 General Alarm General Alarm General Alarm General Alarm General Alarm General Alarm
12 Condenser Pump Condenser Pump Condenser Pump
13 4-wayValve 4-wayValve 4-wayValve 4-wayValve 4-wayValve 4-wayValve
6.5.4 ANALOGUE OUTPUTS
Chiller unit + heat pump with gas reversing MACHINE TYPE “4”
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1
2

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 13
6.6 CHILLER UNIT + HEAT PUMP WITH WATER REVERSING – MACHINE TYPE “5”
6.6.1 DIGITAL INPUTS Chiller + Heat pump with water reversing MACHINE TYPE "S"
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Serious alarm (Enablable) Serious alarm (Enablable) Serious alarm (Enablable) Serious alarm (Enablable) Serious alarm (Enablable) Serious alarm (Enablable)
2 Evaporator Flow-switch
(enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable) Evaporator Flow-switch (enablable)
3 Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF Remote ON/OFF
4 Evaporator Pump thermal
Cutout Evaporator Pump thermal Cutout Evaporator Pump thermal Cutout
5 Low Pressure Pressure-
switch Low Pressure Pressure- switch Low Pressure Pressure- switch Low Pressure Pressure- switch Low Pressure Pressure- switch Low Pressure Pressure- switch
6 Oil 1 differential / Oil Level Oil 2 differential / Oil Level Oil 1 differential / Oil Level Oil 2 differential / Oil Level Oil 1 differential / Oil Level Oil 2 differential / Oil Level
7 Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable) Phase Monitor (enablable)
8 Double Set-point Double Set-point Double Set-point
9 Evaporator Flow-switch
(Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable) Evaporator Flow-switch (Enablable)
10 Summer / Winter Summer / Winter Summer / Winter
11 High pressure pressure-
switch High pressure pressure- switch High pressure pressure- switch High pressure pressure- switch High pressure pressure- switch High pressure pressure- switch
12 Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout Compressor Thermal cutout
6.6.2 ANALOGUE INPUTS
Chiller + Heat pump with water reversing MACHINE TYPE "S"
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Water temperature at
Evaporator Inlet High Pressure High Pressure Water temperature at Evaporator Inlet
2 Water temperature at
Evaporator Outlet Water temperature at Evaporator Outlet Low Pressure Low Pressure Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet
3 Delivery Temperature Delivery Temperature Delivery Temperature Delivery Temperature Water Temperature at
Condenser Inlet
4 Water temperature at
Condenser Outlet Water temperature at Condenser Outlet Voltage / Current / External Set-point Voltage / Current Water temperature at Condenser Outlet Water temperature at Condenser Outlet
5 Water Temperature at
Condenser Inlet Water temperature at Evaporator Inlet Voltage / Current / External Set-point Voltage / Current
6 Voltage / Current / External
Set-point Voltage / Current Water temperature at Evaporator Outlet Water temperature at Evaporator Outlet Delivery Temperature Delivery Temperature
7 High Pressure High Pressure Water Temperature at
Condenser Inlet High Pressure High Pressure
8 Low Pressure Low Pressure Water temperature at
Condenser Outlet Water temperature at Condenser Outlet Low Pressure Low Pressure
6.6.3 DIGITAL OUTPUTS
Chiller + Heat pump with water reversing MACHINE TYPE "S"
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1 Evaporator Pump Evaporator Pump Evaporator Pump
2 Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor Line Contactor
3 Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor Star Contactor
4 Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor Triangle Contactor
5 Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid Liquid Solenoid
6 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1 Capacity Control Relay 1
7 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2 Capacity Control Relay 2
8 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3 Capacity Control Relay 3
9 Liquid Inj. / Econ. / Oil
Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler Liquid Inj. / Econ. / Oil Cooler
10 Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater Antifreeze Heater
11 General Alarm General Alarm General Alarm General Alarm General Alarm General Alarm
12 Condenser Pump Condenser Pump Condenser Pump
13 4-way Valve 4-way Valve 4-way Valve 4-way Valve 4-way Valve 4-way Valve
6.6.4 ANALOGUE OUTPUTS
Chiller + Heat pump with water reversing MACHINE TYPE "S"
N. pCO2 MEDIUM pCO1 MEDIUM pCOC MEDIUM
Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4) Master (Address 1) Slave (addresses 2/3/4)
1
2

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 14
7 LIST OF PARAMETERS
The table below describes program parameters along with the following additional information: screen code (screens have a code in the top right
corner) to make identifying the parameter easier (screen), factory setting, upper and lower limits of the range within which values can be
effected, unit of measurement, and an empty column for writing the desired value.
To find the parameter you are interested in on the terminal’s display, proceed as follows:
• Locate the parameter in the table below and the code of the screen it appears on
• Using the list of screens (coming section) and screen code, call up the screen on the terminal
DESCRIPTION OF PARAMETER SCREEN MASTER
SLAVE FACTORY VALUE USER VALUE RANGE MEASU- REMENT
UNIT
Password inputting A3 M/S 1234 0 to 9999
Duty hours thresholds for evaporator pump A4 M 10 0 to 999 hours x 1000
Reset duty hours thresholds for evaporator pump A4 M N. N/Y
Duty hours thresholds for condenser pump A5 M 10 0 to 999 hours x 1000
Reset duty hours thresholds for condenser pump A5 M N. N/Y
Duty hours thresholds for compressor A6 M 10 0 to 999 hours x 1000
Reset compressor duty hours A6 M N. N/Y
Adjustment of probe B1 A7 M/S 0 -9.9 to 9.9
Adjustment of probe B2 A7 M/S 0 -9.9 to 9.9
Adjustment of probe B3 A7 M/S 0 -9.9 to 9.9
Adjustment of probe B4 A7 M/S 0 -9.9 to 9.9
Adjustment of probe B5 A8 M/S 0 -9.9 to 9.9
Adjustment of probe B6 A8 M/S 0 -9.9 to 9.9
Adjustment of probe B7 A8 M/S 0 -9.9 to 9.9
Adjustment of probe B8 A8 M/S 0 -9.9 to 9.9
Enable compressor 1 A9 M S N/Y
Enable compressor 2 A9 M S N/Y
Enable compressor 3 A9 M S N/Y
Enable compressor 4 A9 M S N/Y
Cancel alarm log Aa M/S N. N/Y
Adjustment mode for Driver 1 valve Ab M/S Automatic Aut-Man
Number of steps for manual opening of Driver 1 valve Ab M/S 0 0 to 9999 Steps
Adjustment mode for Driver 2 valve Ac M/S Automatic Aut-Man
Number of steps for manual opening of Driver 2 valve Ac M/S 0 0 to 9999 Steps
Manual release of Driver 1 at start-up Ad M/S No No-Yes
Manual release of Driver 2 at start-up Ae M/S No No-Yes
Inputting of new Maintenance password Af M/S 1234 0 to 9999
Hour setting K1 M/S current hour 0 to 23 Hours
Minute setting K1 M/S current minutes 0 to 59 minutes
Day setting K1 M/S current day 1 to 31
Month setting K1 M/S current month 1 to 12
Year setting K1 M/S current year 0 to 99
Summer set point S1 M/S 12.0 see P1 °C
Winter set point S1 M 45.0 see P2 °C
Second summer set-point S2 M 45.0 see P1 °C
Second winter set point S2 M/S 45.0 see P2 °C
M/S
User password inputting P0 M/S 1234 0 to 9999
Minimum limit of summer set point P1 M/S 7.0 -99.9 / 99.9 °C
Minimum limit of summer set point P1 M 17.0 -99.9 / 99.9 °C
Minimum limit of winter set point P2 M 40.0 -99.9 / 99.9 °C
Minimum limit of winter set point P2 M 50.0 -99.9 / 99.9 °C
Selection of control probe P3 M Input Input / Output
Control with probe at evaporator input P4 M Prop. Prop./Prop+Int.
Integration time P4 M 600 0 to 9999 seconds
Control at output - summer forced power down P5 M 5.0 -99.9 / 99.9 °C
Control at output - winter forced power down P5 M 47.0 -99.9 / 99.9 °C
Control band P6 M 3.0 0 to 99.9 °C
Neutral zone with modulating capacity control P7 M/S 1.0 0 to 99.9 °C

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 15
DESCRIPTION OF PARAMETER SCREEN MASTER
SLAVE FACTORY VALUE USER VALUE RANGE MEASU- REMENT
UNIT
Delayed power up between pump and compressors P8 M 5 0 to 999 seconds
Delayed power down of main pump P9 M 5 0 to 999 seconds
Enable remote On/Off Pa M/S N. N/Y
Enable On/Off from supervisor Pa M/S N. N/Y
Enable summer / winter selection from digital input Pb M N. N/Y
Enable summer / winter selection from supervisor Pb M N. N/Y
Enable language mask start-up Pc M/S S N/Y
Type of freecooling control Pd M/S Prop. Prop./Prop+Int.
Integral time for freecooling management Pd M/S 150 0 to 9999 seconds
Freecooling offset on set-point Pd M/S 5.0 0 to 99.9 °C
Minimum freecooling delta Pe M/S 2.0 0 to 99.9 °C
Maximum freecooling delta Pe M/S 10.0 0 to 99.9 °C
Freecooling differential Pe M/S 4.0 2.0 to 99.9 °C
Compressors delay in freecooling Pe M/S 5 0 to 500 minutes
Minimum threshold for freecooling valve start Pf M/S 50 0 to 100 %
Maximum threshold for freecooling valve opening Pf M/S 50 0 to 100 %
Defrosting starts Pg M/S 2.0 -99.9 / 99.9 °C/bar
Defrosting ends Pg M/S 12.0 -99.9 / 99.9 °C/bar
Drip-off time Ph M/S 10 5 to 999 seconds
Delayed defrosting start Ph M/S 1800 0 to 32000 seconds
Maximum defrosting time Ph M/S 300 0 to 32000 seconds
Cycle reversing configuration Pi M/S Comp. always
on Comp. always ON Comp. OFF start of
defr. Cmp. OFF end
defr. Comp. OFF
start/end
Card identification number for supervision network Pj M/S 1 0 to 200
Card communication speed for supervision network Pj M/S 19200 1200 to 19200 bps
Selection of communication serial network Pj M/S Carel Carel / Modbus
New user password inputting Pk M/S 1234 0 to 9999
+
Constructor password inputting Z0 M/S 1234 0 to 9999
CONFIGURATION →
Unit configuration C1 M/S 0 0 to 5
Enable probe B1 C2 M/S Y (if pCO2)
N (if pCO1)
Y (if pCOC)
N/Y
Enable probe B2 C2 M/S N. N/Y
Enable probe B3 C2 M/S N. N/Y
Enable probe B4 C2 M/S N. N/Y
Enable probe B5 C2 M/S N (if pCO2)
Y (if pCO1)
N (if pCOC)
N/Y
Enable probe B6 C2 M/S N. N/Y
Enable probe B7 C2 M/S N. N/Y
Enable probe B8 C2 M/S N. N/Y
Generic probe generic configuration (B4 on pCO1, B5
on pCOC, B6 on pCO2) C3 M/S None No Current Voltage external Set-point
Type of generic probe C3 M/S 0 - 1 V 0-1 V
0-10 V
4-20mA
Generic probe lower limit C4 M/S 0.0 -999.9 to 999.9 °C/V/A
Generic probe upper limit C4 M/S 0.0 -999.9 to 999.9 °C/V/A
Probe types for analogue inputs 1 and 2 (for pCO1
cards only) C5 M/S 4-20mA 4-20mA / 0-5V
Type of delivery temperature probe C6 M/S Ntc Ntc / 4-20mA
Delivery probe lower limit C6 M/S -30.0 -999.9 to 999.9 °C
Delivery probe upper limit C6 M/S 150.0 0.0 to 999.9 °C
High pressure probe lower limit C7 M/S 00.0 -99.9 to 99.9 bar
High pressure probe upper limit C7 M/S 30.0 -99.9 to 99.9 bar
Low pressure probe lower limit C8 M/S -0.5 -99.9 to 99.9 bar
Low pressure probe upper limit C8 M/S 7.0 -99.9 to 99.9 bar
Enable double set-point C9 M Disabled Disabled / Enabled
Number of drivers present Ca M/S 0 0 to 2
Number of compressors present Ca M/S 1 1 to 4
Compressor rotation Ca M S N/Y
Type of capacity control Cb M/S Steps Step/Modul.
Number of steps per compressor Cb M/S 4 1 to 4
Enable starting restrictions Cc M/S N. N/Y

Standard Chiller/HP modulare per compressore a vite con driver CAREL
Cod.: +030221241 Rel. 1.0 dated 25 September 03 16
DESCRIPTION OF PARAMETER SCREEN MASTER
SLAVE FACTORY VALUE USER VALUE RANGE MEASU- REMENT
UNIT
Step 1 - Relay 1 logic Cd M/S ON OFF/ON
Step 1 - Relay 2 logic Cd M/S OFF OFF/ON
Step 1 - Relay 3 logic Cd M/S OFF OFF/ON
Step 2 - Relay 1 logic Ce M/S OFF OFF/ON
Step 2 - Relay 2 logic Ce M/S OFF OFF/ON
Step 2 - Relay 3 logic Ce M/S ON OFF/ON
Step 3 - Relay 1 logic Cf M/S OFF OFF/ON
Step 3 - Relay 2 logic Cf M/S ON OFF/ON
Step 3 - Relay 3 logic Cf M/S OFF OFF/ON
Step 4 - Relay 1 logic Cg M/S OFF OFF/ON
Step 4 - Relay 2 logic Cg M/S OFF OFF/ON
Step 4 - Relay 3 logic Cg M/S OFF OFF/ON
Enable step 1 special management Ch M/S N. N/Y
Stand-by configuration for relay 6 Ci M/S OFF OFF/ON
Stand-by configuration for relay 7 Ci M/S ON OFF/ON
Reducing configuration for relay 6 Cj M/S ON OFF/ON
Decrementing configuration for relay 7 Cj M/S ON OFF/ON
Incrementing configuration for relay 6 Ck M/S OFF OFF/ON
Incrementing configuration for relay 7 Ck M/S OFF OFF/ON
Pulse period for modulating configuration Cl M/S 6 0 to 99 seconds
Minimum decrementing pulse Cl M/S 1.5 0 to 99.9 seconds
Maximum decrementing pulse Cl M/S 3.0 0 to 99.9 seconds
Derivation time for modulating configuration Cm M/S 3 seconds
Minimum decrementing pulse Cm M/S 1.5 0 to 99.9 seconds
Maximum decrementing pulse Cm M/S 3.0 0 to 99.9 seconds
Decrement forcing time at compressor start Cn M/S 20 0 to 999 seconds
Enable solenoid forcing when compressor OFF Co M/S N. N/Y
Enable pump - down Cp M/S N. N/Y
Minimum pump - down time Cp M/S 50 0 to 999 seconds
Configuration of compressor power level in case of
forced capacity control. Cq M/S Max. power Max. power / Min. power
Enable condensation Cr M/S No NO/YES
Type of condensation control Cr M/S Inverter Inverter / Steps
Number of fans per condenser Cr M/S 1 1 to 2
Enable clock card Cs M/S Disabled Disabled / Enabled
PARAMETERS →
Starting restrictions - low pressure G0 M/S
Starting restrictions - high pressure G0 M/S
Starting restrictions - pressure equalisation G0 M/S
Enable high pressure prevention G1 M/S N. N/Y
Type of high condensation prevention G1 M/S Pressure Press / Temp
Condensation set-point G1 M/S 20.0 0 to 99.9 bar/ °C
High condensation differential G1 M/S 2.0 0 to 99.9 bar/ °C
Enable delivery prevention G2 M/S N. N/Y
Delivery prevention set-point G2 M/S 90.0 0 to 999.9 °C
Delivery prevention differential G2 M/S 5.0 0 to 99.9 °C
Antifreeze prevention set point G3 M/S 6.0 -99.9 to 99.9 °C
Antifreeze prevention differential G3 M/S 1.0 0 to 99.9 °C
Condensation set-point G4 M/S 14.0 -999.9 to 999.9 bar/ °C
Condensation differential G4 M/S 2.0 -999.9 to 999.9 bar/ °C
Inverter maximum speed G5 M/S 10.0 0.0 to 10.0 V
Inverter maximum speed G5 M/S 3.0 0.0 to 10.0 V
Maximum speed time G5 M/S 10 0 to 99 seconds
Enable serious alarm G6 M/S N. N/Y
Enable phase monitor alarm G6 M/S N. N/Y
Enable evaporator flow-switch alarm G7 M/S N. N/Y
Enable condenser flow-switch alarm G7 M/S N. N/Y
Alarm set-point for delivery temperature probe G8 M/S 120.0 0 to 999.9 °C
Alarm differential for delivery temperature probe G8 M/S 5.0 0 to 99.9 °C
High pressure probe alarm set-point G9 M/S 21.0 0 to 99.9 bar
High pressure probe alarm differential G9 M/S 2.0 0 to 99.9 bar
Low pressure probe alarm set-point Ga M/S 1.0 -99.9 to 99.9 bar
Low pressure probe alarm differential Ga M/S 0.5 -99.9 to 99.9 bar
Alarm set-point: difference between high and low pressure Gb M/S 6.0 0 to 99.9 bar
Delayed start due to low pressure difference alarm Gb M/S 20 0 to 999 seconds
High voltage alarm set-point Gc M/S 440.0 0 to 999.9 V
High voltage alarm differential Gc M/S 5.0 0 to 99.9 V
High current alarm set-point Gd M/S 90.0 0 to 999.9 A
High current alarm differential Gd M/S 5.0 0 to 99.9 A
Antifreeze set point Ge M/S 3.0 0 to 999.9 °C
Antifreeze differential Ge M/S 1.0 0 to 99.9 °C