CIAT XtraConnect 2 Guide

06 - 2011
NA10.139 B
XtraConneCt 2
Installation
Fonctionnement
Mise en service
Maintenance
Installation
Operation
Commissioning
Maintenance
Montage-
Betriebs-und
Wartungs-
Anweisung
Instalación
Funcionamiento
Puesta en marcha
Mantenimiento
Module électronique de
régulation et de signalisation
à microprocesseurs pour
refroidisseurs de liquide
et pompe à chaleur
Microchip and LCD display
electronic regulation and
signaling electronic module
for liquid coolers
and heat pumps
Elektronisches Regel- und
Anzeigemodul mit
Mikroprozessor und LCD-
Anzeige für
Flüssigkeitskühler
und Wärmepumpe
Módulo electrónico de
regulación y señalización a
microprocesador y visualizador
LCD para enfriadores de líquido
y bomba de calor
N _ NU A4.indd 1 25/07/2011 18:19:34

EN - 1
CONTENTS PAGE
1 IMPORTANT RECOMMENDATIONS 3
1.1 Electrical power supply 3
1.2 Specifications of the XTRACONNECT 2board 3
1.3 Warning 3
1.4 Earthing 3
1.5 Connection of sensors 3
1.6 Connection of the communication buses and of the remote console 3
1.7 Connection of the on/off inputs 3
2 GENERAL 3
2.1 Description 4
2.2 Description of the motherboard 5
2.3 Description of expansion board 3 (ADD3) on a 2-circuit machine and with the rotary switch set to '1'
0
1
2
3
4
5
6
7
8
6
2.4 Description of expansion board 3 (ADD3) on a 3-circuit machine. Module 2, rotary switch set to '2'
0
1
2
3
4
5
6
7
8
7
2.5 Description of expansion board 1 on a 3-circuit machine. Module 2, rotary switch set to '3'
0
1
2
3
4
5
6
7
8
8
2.6 Connection via RS485 serial port for BMS or control console and Multiconnect with 500 kW module 9
2.7 RELAY BOARD 10
3 ACCESS LEVELS 10
3.1 Selecting an authorised access level 10
3.2 Accessing the various access levels 10
3.3 Configuring access levels on the controller 11
3.4 Management of the numeric codes for accessing levels 2 and 3 12
3.5 Classification of the menus and their functions 12
4 LIST OF PARAMETERS 12
5 CONTENTS OF THE MENUS 19
5.1 Main menu 19
5.2 Setpoint menu 19
5.3 Unit status menu 19
5.4 Measured values menu 20
5.5 Unit parameters menu 21
5.6 Adjustment parameters menu 21
5.7 Reading parameters menu 22
5.8 Fault memory menu 23
5.9 Test mode menu 24
5.10 TIME SCHEDULES menu 25
5.11 COMMUNICATION Menu 25
5.12 MASTER/SLAVE menu 26
5.13 AERO-CONNECT menu 26
5.14 ACCESS LEVEL SELECTION menu 26
6 MANAGEMENT OF THE ON/OFF INPUTS 26
6.1 Automatic machine operation control 26
6.2 Automatic water pump control 26
6.3 Load shedding control 27
6.4 Water flow switch 27
6.5 Phase controller fault 28
6.6 Pump 6 fault 28
6.7 Emergency stop (split system unit and dry cooler. 28
6.8 Fan fault (circuits 1, 2 and 3) 29
6.9 External fault 29
6.10 Compressor 1, 2 or 3 protection ("SE" box) 29
6.11 Discharge fault on circuit 1, 2 or 3 29
6.12 High-pressure switch fault on circuit 1, 2 or 3 30
6.13 LP fault on circuit 1, 2 or 3 30
6.14 Minimum desuperheat discharge fault 31
6.15 Electronic expansion valve fault 31
6.16 Lubrication fault 31
6.17 Minimum and maximum superheat fault 32
7 MANAGEMENT OF THE ANALOGUE INPUTS 33
8 PRESSURE SENSOR 34
9 PUMP MANAGEMENT 35
10. EVAPORATOR WINTER AND FROST PROTECTION 35
11. MANAGEMENT OF THE OUTPUTS OF LIQUID VALVES 1, 2 AND 3 36
12. MANAGEMENT OF THE ECONOMISER VALVES (HPS) 36
13. MANAGEMENT OF THE 25% OUTPUT COMPRESSOR VALVES 37
14 MANAGEMENT OF THE LIQUID INJECTION VALVES 37
15. MANAGEMENT OF THE FUNCTIONS 37
15.1 Compressor starting order (3 circuits) and runtime balancing 37
15.2 Short-cycle protection and minimum off-time 37

EN - 2
15.3 Forced stop of compressors 37
15.4 Time counter 37
15.5 Oil warm-up time 37
15.6 Management of electrical quantities 37
15.7 Limitation of operation of the machines based on the outdoor temperature: 38
15.8 Soft stop via the On/Off button: 39
16. CONTROLLING A THREE-WAY VALVE ON THE HOT WATER CIRCUIT FOR HYDROCIAT UNITS 39
17. MASTER/SLAVE CONTROL OF TWO PARALLEL-CONNECTED MACHINES 39
17.1 Operating principle: 40
17.2 General: 40
17.3 Management of the functions: 40
17.4 Controls: 41
17.5 Unit status menu 42
17.6 Management of pumps using P811 (pumps stopped by control): 42
18. CONTROLS 42
18.1 Main control in cooling and heating modes 42
18.2 Operating mode 43
18.3 Control setpoint calculation 44
18.4 Definition of the controller for PID control (water supply only) 45
18.5 Water return control for storage (CRISTOPIA) 47
18.6 Modulating control (water return only) 47
18.7 Automated self-regulating control 48
18.8 Compensation 48
19. CONDENSING PRESSURE CONTROL 48
19.1 Staged control for a machine with an air-cooled condenser 48
19.2 Fan speed control 50
19.3 Condensing pressure control on 3-circuit machines: 52
19.4 Control of air-cooled condenser for split-system unit and dry cooler 53
19.5 Total heat recovery 53
20. COMPRESSOR START-UP CYCLE 53
21. LIMIT MANAGEMENT 54
22 ASSIGNING A COMMUNICATION ADDRESS TO THE DIRIS ENERGY METER 55
23 MANAGEMENT OF THE PROTECTIONS FOR 3-CIRCUIT AIR-TO-WATER UNITS (MODULES 1 AND 2) 55
24. TIME SCHEDULES 55
24.1 Overview 55
24.2 Definition of program steps 55
24.3 Definition of holiday bands. 55
24.4 Operation 55
25 COMMUNICATION PROTOCOL 57
25.1 Communication interface. 57
25.2 Transmission mode. 58
25.3 Customer-accessible register 58
25.4 Customer access bit 59

EN - 3
1 IMPORTANT RECOMMENDATIONS
Your unit is equipped with a microprocessor-controlled electronic circuit board. To ensure the correct operation of your machine, you must follow
the rules listed below.
1.1 Electrical power supply
●Remote control: 230 V AC/50 Hz.
If the machine's remote control is powered separately (transformer
not supplied), provide the following:
1 - A power supply line running directly from a distribution point (this
line must be used only to supply power to the machine's remote
control).
2 - This power supply line must be at least 1 metre away from all
power lines (400 V).
1.2 Specifications of the XTRACONNECT 2board
Board power input: 35 Watts.
Maximum allowable voltage and current per input/output:
253 V AC -3.15 A.
The board is powered by an onboard screw-on three-pin connector.
The terminals are identified as follows:
1 - Live,
2 - Neutral,
3 - Earth.
Board fuse specifications:
Schurter UMT 250 V AC/3.15 A. Time lag: 10 × 3. Product code:
34031 0171.
Environmental conditions:
- In storage: –40/+80°C, 5/85% humidity without condensation.
- In use: –20/+70°C, 5/85% humidity without condensation.
Degree of pollution: 3.
1.3 Warning
Read the instructions in the manual before attempting to service the
product.
Before attempting to service the board, disconnect its power source
and make sure that no voltage is present.
To prevent the risk of electric shock, access to the board should be
impossible while it is energised.
Certain parts of the board (USB and Ethernet connectors) may be
hot. Based on the ambient temperature, they could cause burns. As
a result, avoid touching these connectors while they are connected.
Important:
If the date and time are lost following a power failure, replace the
battery (type: Cr 2032).
There is a risk of explosion if the battery is replaced by an incorrect
type.
Dispose of used batteries in accordance with local regulations.
1.4 Earthing
The unit must be earthed (good earth quality in compliance with
French standard NF C 15-100).
1.5 Connection of sensors
Keep connection cables away from power lines (400 V) or a remote
control line (230 V). In the case of distances of over 6 m, use a
shielded cable connected to the earth on the unit.
Maximum distance: 25 m.
1.6 Connection of the communication buses and
of the remote console
●Connection cable specifications:
- Flexible cable for EIA – RS 485 connection
- Two shielded wires.
- Capacitance between cables and shield: 120 pF/m.
- Resistance: 56 Ω/km.
●Connection of the shield:
- Connect the shield on the BMS or micro-computer end to earth.
- Ensure bonding all the way to the last unit
(the shield on the communication cable must be connected
between each unit).
- Do not connect the shield to the earth connection on the units.
- The wires exiting the shield must be as short as possible (2 cm)
on each unit.
●Cable routing:
- The cable must be at least 30 cm away from all 230 V or 400 V
cables along its entire length.
- If a 230 V or 400 V cable must be crossed with a computer cable,
they must cross each other at a right angle.
1.7 Connection of the on/off inputs
●Distances of less than 30 metres:
- Use a shielded cable. Keep the cable at least 30 cm away from all
lines that could generate interference. Connect the shield to the
earth on the unit. If several shielded cables are used, connect each
shield separately (if the risk of interference persists, install a relay
for each input).
●Distances of greater than 30 metres:
- Install a relay for each input near the electronic circuit board
(cable cross-section: 0.5 mm2)
●Example connection diagram:
K: Auxiliary relay (fit near the electronic circuit board)
CA: Automatic operation control (on each machine)
2 GENERAL
This microprocessor-based electronic control module with display for liquid chillers is supplied as standard on water chillers equipped with screw
compressors with two or three refrigeration circuits.
Depending on the configuration, the board provides the following functions:
- Control of chilled water or hot water temperatures.
- Continuous monitoring of operating parameters.
- Diagnostics and fault storage.
- Setpoint drift based on the outdoor temperature (in heating and cooling modes).
- Communication with the console (remote or local) and the expansion boards (fault reporting, communication via modem for BMS and control
console).

EN - 4
235
15335
120
80 28
Ø 10
Ø 5
10
LCD
Cancel
Setpoint 1/ Setpoint 2
selection
Cooling/Heating
mode selection
On/Off
Confirm
General fault
LED
Red circuit fault
LEDs Power LED
Acknowledge
(possible in fault
memory menu only)
2.1 Description
The Xtraconnect 2 control module consists of:
●Machines with 2 and 3 circuits on module 1:
- 1 common control and display console with CONNECT 2 fitted
on unit.
- 1 motherboard with hardware common with the tropicalised
CONNECT 2 board with the Xtraconnect 2 software.
- 1 tropicalised expansion board (ADD 3) with its rotary switch
set to 1.
●Machines with 3 circuits on module 2:
- 1 tropicalised expansion board (ADD 3) with its rotary switch
set to 2.
- 1 tropicalised expansion board (ADD 1) with its rotary switch
set to 3.
●Analogue inputs:
- Acquire signals measured by temperature sensors.
- Acquire signals measured by pressure by sensors.
- Acquire faults from the surrounding electromechanical
components.
●Actions:
- Compares the setpoint and the water temperature to calculate
which stages are to be turned on or off.
●Outputs:
- Control stage control.
- Pump control.
- General fault.
Consoles
●Local console:
- The controls on the local console are enabled regardless of
the value of P103.
- All faults can be reset from the FAULT MEMORY menu.
●Remote control console:
- Reading of values.
- The controls are enabled if P103 is set to 'remote'.
In this case, the following parameters are modifiable:
•On/Off.
•Cooling/Heating.
•All the adjustment parameters accessible via the authorised
access level.
•All locked parameters accessible via the authorised access
level (except the first nine).
•Faults cannot be reset.
•Test mode inaccessible.
●BMS, control console, etc:
- All are available in read mode.
- All are available in write mode, except for P1 to P99 and
(P100; P103; P104; P105).
- Parameters P1 to P99 are editable.
- If P99 is unlocked on the machine console.
- Faults cannot be reset remotely.
NOTE: All the registers are viewable regardless of the value of
P103 (see communication protocol).
- To be able to write parameters, P103 must be set to 'remote'.
- To be able to switch between heating and cooling, P199 must
be set to 'cooling/heating' via the console.
- To be able to switch between setpoints 1 and 2, P120 must be
set to '2' via the console.
Front panel
Mounting dimensions (in mm) of remote control console

EN - 5
+
TR1
SP1
PL1
J4J2 J3
J6J8
J5J7
J9J11 J10
W3
J14 J12J13
D46 D48D50 D52
121110987654321
12345678910111213141516
1110987654321
121110987654321 1110987654321321321 321
43214321
8642
7531
12345 123
CIAT GAMME CONNECT2
Locking the console
Note: available only on the local console located on the unit.
The console is set by default to 'unlocked'.
The lock state is saved in the event of a mains power failure.
If locking mode is enabled while modifying a parameter, any changes entered are not saved and the parameter reverts to its initial setting.
To lock the console, simultaneously press and hold +and –for 5 seconds (possible in any menu on the console).
The following message appears for 5 seconds then the display returns to unit status mode (test mode is disabled):
It is now possible to make any changes via the local console. Any attempts to enter changes will cause the following message to appear for 3
seconds.
The console is unlocked in the same manner, i.e. by pressing and holding +and –for 5 seconds. Doing so causes the following message to
appear for 3 seconds:
2.2 Description of the motherboard
SWITCH W3
End-of-line resistance for two-wire RS485 link. The switch must be
set to the left for the last unit on the loop and to the right for the
others.
TERMINAL BLOCK J2 (analogue outputs)
1-2: 0-10 V output for circuit 1 fan speed control
(+on terminal 1).
3-4: 0-10 V output for circuit 2 fan speed control
(+on terminal 3).
4-5: 0-10 V output for common fan speed control
(+on terminal 5).
TERMINAL BLOCK J3 (on/off inputs)
1: Circuit fault output common.
2: Circuit 1 fault output.
3: Circuit 2 fault output.
4: Common, inverter compressor 1 contactor and heater control.
5: Evaporator defrost heater control.
6: Pipe heat trace cable control.
7: Hydraulic module heater control.
8: Compressor 1 intake valve or inverter compressor 1 contactor
control.
9: Compressor 2 intake valve or inverter compressor 2 contactor
phase.
10: Compressor 2 intake valve or inverter compressor 2 contactor
control.
11: Fault output common.
12: NC contact for fault output.
13: NO contact for fault output.
14: Common for pumps.
15: Pump 1 control.
16: Pump 2 control.
TERMINAL BLOCK J4 (power supply)
1: 230 V board power supply - Line.
2: 230 V board power supply - Neutral.
3: Earth.
LOCKED
DISPLAY PANEL
LOCKED
DISPLAY PANEL
UNLOCKED
DISPLAY PANEL

EN - 6
J13
J7
13579111315
2 4 6 8 10 12 14 16
123
RC1
0
1
2
3
4
5
6
7
8
9
J5
J8
J1
54321
1234
1234
45678123
9876
543219876
J12
9101112
J10
45678123
J9
45678123 45678123
J11
9101112
J4
543216
J6
543219876
11 10
J2
54321987611 10
J3
D15D14
K3
K1
CIAT GAMME CONNECT2 ADD3
TERMINAL BLOCK J5 (on/off inputs)
1-2: Compressor 1 protection fault (inverter).
2-3: Compressor 2 protection fault (inverter).
4-5: Circuit 1 manual reset HP fault
(compressor 1 operation).
5-6: Circuit 2 manual reset HP fault
(compressor 2 operation).
7-8: Phase controller fault.
8-9: Water flow fault.
10-11: Pump 1 fault.
TERMINAL BLOCK J6 (on/off inputs)
1-3: Pump 2 fault.
2-3: Automatic machine operation control.
4-6: Setpoint 1/setpoint 2.
5-6: Automatic pump operation control.
7-9: Compressor 1 load shedding control.
8-9: Compressor 2 load shedding control.
10-11: Customer fault control (outdoor).
TERMINAL BLOCK J7 (analogue inputs)
1-2: 10 K outdoor temperature sensor.
2-3: 10 K evaporator water inlet temperature sensor.
4-5: 10 K evaporator water outlet temperature sensor.
5-6: 10 K hydraulic module ambient temperature sensor.
7: +24 V power supply for pressure sensors.
8: 0-10 V input for heat exchanger 1 water inlet sensor.
9: 0-10 V input for heat exchanger 1 water outlet sensor.
10: Common for pressure sensors.
11: +4-20 mA remote setpoint.
12: –4-20 mA remote setpoint.
TERMINAL BLOCK J8 (analogue inputs)
1-2: Condenser water inlet temperature sensor.
2-3: 10 K condenser water outlet temperature sensor.
4-5: 10 K circuit 1 suction temperature sensor.
5-6: 50 K circuit 1 discharge temperature sensor.
7-8: 50 K circuit 2 discharge temperature sensor.
9: +5 V power supply for pressure sensor.
10: 0-5 V input for circuit 1 HP sensor.
11: 0-5 V input for circuit 1 LP sensor.
12: Common for pressure sensors.
TERMINAL BLOCK J9
Link for chiller or MULTICONNECT.
TERMINAL BLOCK J10
Remote control console, relay board link - AEROCONNECT.
TERMINAL BLOCK J11
BMS link.
TERMINAL BLOCK J12
Local console link.
TERMINAL BLOCK J13
Link for additional boards.
TERMINAL BLOCK J14
Ethernet link for PC.
Characteristics of the on/off inputs: 24 V – 15 mA.
Characteristics of the On/Off outputs: 250 V - 2 A max.
2.3 Description of expansion board 3 (ADD3) on a 2-circuit machine and with the rotary switch set to '1'
0
1
2
3
4
5
6
7
8
TERMINAL BLOCK J1 (Molex)
Mother board connection.
TERMINAL BLOCK J2 (analogue inputs)
1: +5 V power supply for pressure sensor.
2: 0-5 V input for circuit 2 HP sensor.
3: 0-5 V input for circuit 2 LP sensor.
4: Common for pressure sensors.
5-6: 4-20 mA input (0 on terminal 5). Available.
7-8: 10 K circuit 2 suction temperature sensor.
8-9: 10 K circuit 1 liquid temperature sensor.
10-11: 10 K circuit 2 liquid temperature sensor.
TERMINAL BLOCK J3 (on/off inputs)
1-2: Emergency stop control (split system machine or machine with
dry cooler)
2-3: Heating/cooling or total recovery control.
4-5: Fan fault.
6-8: Circuit 1 expansion valve fault.
7-8: Circuit 2 expansion valve fault.
8-9: Energy load shedding control.
10-11: 10 K master/slave manifold water outlet temperature sensor.
TERMINAL BLOCK J4 (analogue outputs)
1-2: Pump 1 speed control (+on terminal 1).
2-3: Pump 2 speed control (+on terminal 2) or control of three-way
valve on water-to-water unit
4-5: Compressor 1 speed control (+on terminal 4).
5-6: Compressor 2 speed control (+on terminal 6).
TERMINAL BLOCK J5 (on/off inputs)
1: 230 V phase input common to the terminal outputs (24 V for
inverter compressor).
2: 230 V neutral input, common for redistribution on the terminal
block.
3: Neutral, compressor 1 protection.
4: Compressor 1 protection reset output (compressor 1 reset for
inverter 1).
5: Output to circuit 1 high-pressure switch (compressor 1 on/off, no
inverter faults)
6: Circuit 1 high-pressure switch feedback.
7: Compressor 1 winding 1 start output.
8: Not used.
9: Compressor 1 winding 2 start output (start compressor 1 for
inverter).

EN - 7
RC1
0
1
2
3
4
5
6
7
8
J13
J7
13579111315
2 4 6 8 10 12 14 16
123
J5
J8
J1
54321
1234
1234
45678123
9876
543219876
J12
9101112
J10
45678123
J9
45678123 45678123
J11
9101112
J4
543216
J6
543219876
11 10
J2
54321987611 10
J3
D15D14
K3
K1
CIAT GAMME CONNECT2 ADD3
TERMINAL BLOCK J6 (on/off inputs)
1: 230 V phase input common to the terminal outputs (24 V for
inverter compressor).
2: 230 V neutral input, common for redistribution on the terminal
block.
3: Neutral, compressor 2 protection.
4: Compressor 2 protection reset output (compressor 2 reset for
inverter).
5: Output to circuit 2 high-pressure switch (compressor 2 on/off, no
inverter faults)
6: Circuit 2 high-pressure switch feedback.
7: Compressor 2 winding 1 start output.
8: Not used.
9: Compressor 2 winding 2 start output (compressor 2 start for
inverter).
TERMINAL BLOCK J7
Serial port for Module 2 (3-circuit machine).
1: Terminal A.
2: Terminal B.
3: Shield.
TERMINAL BLOCK J8 (Molex)
Serial port for the expansion boards.
TERMINAL BLOCK J9 (on/off outputs)
1: Phase input common to terminals 2, 3 and 4.
2: Circuit 1 fan 1 output.
3: Circuit 1 fan 2 output.
4: Circuit 1 fan 3 output.
5 Phase input common to terminals 6, 7 and 8.
6: Circuit 1 fan 4 output.
7: Circuit 1 fan 5 output.
8: Circuit 1 fan 6 output.
TERMINAL BLOCK J10 (on/off inputs)
1: Phase input common to terminals 2, 3 and 4.
2: Circuit 2 fan 1 output.
3: Circuit 2 fan 2 output.
4: Circuit 2 fan 3 output.
5 Phase input common to terminals 6, 7 and 8.
6: Circuit 2 fan 4 output.
7: Circuit 2 fan 5 output.
8: Circuit 2 fan 6 output.
TERMINAL BLOCK J11 (on/off outputs)
1 Phase input common to terminals 3-5-6.
2: Neutral input common to the terminal outputs.
3: 25% valve output, compressor 1.
4: 25% valve and intake valve neutral.
5: Compressor 1 intake valve output.
6: Compressor 1 exhaust valve output.
7: Compressor 1 liquid valve and exhaust valve neutral.
8: Neutral input for terminal 12.
9: Phase input common to terminals 10-11.
10: Compressor 1 intake valve output.
11: Compressor 1 ÉCOCIAT valve output.
12: ÉCOCIAT Valve neutral output.
TERMINAL BLOCK J12 (on/off outputs)
1 Phase input common to terminals 3-5-6.
2: Neutral input common to the terminal outputs.
3: 25% valve output, compressor 2.
4: 25% valve and intake valve neutral.
5: Compressor 2 intake valve output.
6: Compressor 2 exhaust valve output.
7: Compressor 2 liquid valve and exhaust valve neutral.
8: Neutral input for terminal 12.
9: Phase input common to terminals 10-11.
10: Compressor 2 intake valve output.
11: Compressor 2 ÉCOCIAT valve output.
12: ÉCOCIAT valve neutral output.
2.4 Description of expansion board 3 (ADD3) on a 3-circuit machine. Module 2, rotary switch set to '2'
0
1
2
3
4
5
6
7
8
TERMINAL BLOCK J1 (Molex)
Port available for expansion boards
TERMINAL BLOCK J2 (analogue inputs)
1: +5 V power supply for pressure sensor.
2: 0-5 V input for circuit 3 HP sensor.
3: 0-5 V input for circuit 3 LP sensor.
4: Common for pressure sensors.
5-6: Available.
7-8: 10 K circuit 3 suction temperature sensor.
8-9: 10 K circuit 3 liquid temperature sensor.
10-11: 50 K circuit 3 discharge temperature sensor.
TERMINAL BLOCK J3 (on/off inputs)
1-2: Water flow fault.
2-3: Circuit 3 manual reset HP fault (compressor 3 operation).
4-5: Compressor 3 protection fault (inverter compressor 3 fault)
6-8: Circuit 3 expansion valve fault.
7-8: Circuit 3 fan fault.
9-10: Phase controller fault.
10-11: 10 K circuit 3 exchanger water outlet temperature sensor
(2 modules).
TERMINAL BLOCK J4 (analogue outputs)
1-2: Pump 3 speed control (+on terminal 1)
2-3: Circuit 3 fan speed control (+on terminal 2)
4-5: Compressor 3 speed control (+on terminal 4)
5-6: Not used.

EN - 8
J1
RC1
J6J5
J2
J4
J3
0
1
2
3
4
5
6
7
8
2 4 6 8 10 12 14 16 13579111315
54321321
54321
432 1432 1
TERMINAL BLOCK J5 (on/off inputs)
1: 230 V phase input common to the terminal outputs (24 V for
inverter compressor).
2: 230 V neutral input, common for redistribution on the terminal
block.
3: Neutral, compressor 3 protection.
4: Compressor 3 protection reset output (compressor 3 reset for
inverter 3).
5: Output to circuit 3 high-pressure switch (compressor 3 on/off, no
inverter faults).
6: Circuit 3 high-pressure switch feedback.
7: Compressor 3 winding 1 start output.
8: Available.
9: Compressor 3 winding 2 start output (compressor 3 start for
inverter).
TERMINAL BLOCK J6 (on/off outputs)
1: 230 V phase input common to the terminal outputs (24 V for
inverter compressor).
2: 230 V neutral input, common for redistribution on the terminal
block.
3: Available.
4: Available.
5: Available.
6: Available.
7: Available.
8: Available.
9: Available.
TERMINAL BLOCK J7
Serial port for Module 1 (3-circuit machine).
1: Terminal A.
2: Terminal B.
3: Shield.
TERMINAL BLOCK J8 (Molex)
Serial port for the expansion boards.
TERMINAL BLOCK J9 (on/off outputs)
1: Phase input common to terminals 2, 3 and 4.
2: Circuit 3 fan 1 output.
3: Circuit 3 fan 2 output.
4 :Circuit 3 fan 3 output.
5: Phase input common to terminals 6, 7 and 8.
6: Circuit 3 fan 4 output.
7: Circuit 3 fan 5 output.
8: Circuit 3 fan 6 output.
TERMINAL BLOCK J10 (on/off inputs)
1: Phase input common to terminals 2, 3 and 4.
2: Circuit 3 fault output.
3: Available.
4: Available.
5: Phase input common to terminals 6, 7 and 8.
6: Evaporator defrost heater output.
7: Desuperheater heater output.
8: Available.
TERMINAL BLOCK J11 (on/off inputs)
1: Phase input common to terminals 3, 5 and 6.
2: Neutral input common to the terminal outputs.
3: 25% valve output, compressor 3.
4: 25% valve and intake valve neutral.
5: Compressor 3 intake valve output.
6: Compressor 3 exhaust valve output.
7: Compressor 3 liquid valve and exhaust valve neutral.
8: Neutral input for terminal 12.
9: Phase input common to terminals 10-11.
10: Compressor 3 intake valve output.
11: Compressor 3 ÉCOCIAT valve output.
12: ÉCOCIAT valve neutral output.
TERMINAL BLOCK J12 (on/off outputs)
1: Phase input common to terminals 3, 5 and 6.
2: Neutral input common to the terminal outputs.
3: Available.
4: Available.
5: Available.
6: Available.
7: Available.
8: Neutral input for terminal 12.
9: Phase input common to terminals 10-11.
10: Available.
11: Available.
12: Available.
2.5 Description of expansion board 1 on a 3-circuit machine. Module 2, rotary switch set to '3'
0
1
2
3
4
5
6
7
8
TERMINAL BLOCK J1
Flash Memory connector.
TERMINAL BLOCK J2
Link with motherboard or another expansion board.
TERMINAL BLOCK J3
Link with another expansion board.
TERMINAL BLOCK J4 (on/off inputs)
1-2: Circuit 3 load shedding input.
2-3: Available.
4-5: Available.
TERMINAL BLOCK J5 (on/off inputs)
1: Common to all outputs: Compressor 3 intake valve
phase.
2 Available: Compressor 3 intake valve control.
3: Available.
4: Available.
5: Available.
TERMINAL BLOCK J6 (analogue inputs)
1-2: 10 K manifold water outlet temperature sensor,
3-circuit machine (2 modules).
2-3: Available.

EN - 9
2.6 Connection via RS485 serial port for BMS or control console and Multiconnect with 500 kW module
For connection to a CMS, refer to document 3991049.
Identification of Modbus connection terminals :
1: A or +.
2: B or –.
3: Earth (shield).
RS485 PLC
BMS
2-wire RS485
Max. length:
1000 m
Main rela
y
board
Expansion
relay board 1
O
p
tional
Remote control
l
Shield
O
p
tional
AEROCONNECT board
UNIT
Local console
Installed on unit
Shield
To
expansion
board
XTRACONNECT 2 motherboard
Unit 2
Local console
See detail B
MULTICONNECT
motherboard
Shield
RS485 link to BMS
(Modbus protocol)
XTRACONNECT 2
ADD3 board
Unit 1, module 1
To module
2 500 kW, ADD3
bd
Installed on unit
Shield
XTRACONNECT 2motherboard
Local console
Unit 1,
module 1
Shield
Shield
J5
P
N
T
230 V
+6 %
-10 %
P
N
T
230 V
+6 %
-10 %
J1
231
231
AB0V
J10 J9J11
1234
J12
W3
A
B
0V
A
B
0V
A
B
0V
J13
231
W1
J11
1234
J10
2
J9
1
J11
J13
1234
J12
W3
A
B
0V
J3
231
J4
231
A
B
0V
AB0VAB0V
3213213213213213
1234
J1
1234
J13
1234
J8

EN - 10
J1
3
2
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1
2
1
3
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
Expansion
relay board
3300592
Motherboard
relay
3301214
Expansion
relay board
3300838
2.7 RELAY BOARD
The dry contacts on the optional relay board make it possible to remotely view
the states of the stages that are activated and all the fault states on the unit.
●A 230 V ±10% power supply must be provided for the relay board.
●Connect terminal block J1 (1-2) on each relay board to terminal block J10 on
the motherboard.
●The board has a relay fault which will activate in the event of incorrect wiring.
Terminal block layout:
1-2 Water flow rate fault.
3-4 Frost protection fault (water)
5-6 Pump 1 fault.
7-8 Pump 2 fault.
Motherboard: 9-10 Fan fault.
11-12 Emergency stop fault.
13-14 HP1 fault.
15-16 LP1 fault.
17-18 Compressor 1 protection fault.
19-20 Compressor 1 operation.
21-22 Circuit 1 discharge temperature fault.
23-24 Compressor 1 minimum desuperheat fault.
25-26 Compressor 1 lubrication fault.
Expansion board 1: 27-28 HP2 fault.
29-30 LP2 fault.
31-32 Compressor 2 protection fault.
33-34 Compressor 2 operation.
35-36 Circuit 2 discharge temperature fault.
37-38 Compressor 2 minimum desuperheat fault.
39-40 Compressor 2 lubrication fault.
41-42 HP3 fault.
43-44 LP3 fault.
Expansion board 2: Compressor 3 protection fault.
47-48 Compressor 3 operation.
49-50 Circuit 3 discharge temperature fault.
51-52 Compressor 3 minimum superheat fault.
53-54 Compressor 3 lubrication fault.
3 ACCESS LEVELS
Xtraconnect 2 features three parameter access levels:
- Level 1: Users.
- Level 2: Technicians/Maintenance.
- Level 3: CIAT Technicians (full access)
3.1 Selecting an authorised access level
Authorised access levels are selected in menu 14 (ACC. LEVEL SELECT.). The following screen appears:
- Level 3 provides automatic access to all levels (CIAT technicians).
- Level 2 provides access to levels 1 and 2 only (Technicians/Maintenance and CIAT technicians).
- Level 1 provides access to level 1 only (all users).
3.2 Accessing the various access levels
3.2.1 Restricting access to level 1 only
- Access level 2 is the default access level.
- If you are in a higher level and you want to restrict access to level 1 only, simultaneously hold down the ESC and OK buttons for 10 seconds.
- No password is needed to access level 1. The setpoint adjustment range is +or –5 K lower than in the higher access levels.
- The restriction messages remain displayed in access level 1. Operating messages in optimised mode are visible only in access level 2 and up.
- Restriction of access to level 1 only is stored in memory in the event of a mains power failure.
3.2.2 Access to level 2:
A numeric code must be entered to access level 2:
- The following menu for entering this code appears when level 2 is selected.
CONTROLER AT LEVEL x
14-1 LEVEL 2 ACCESS
14-2 LEVEL 3 ACCESS
LEVEL 2
ACCESS CODE
****

EN - 11
- Using the +and –buttons, replace this first symbol (*) by the first character in the code and press OK. Do the same for the second, third and
fourth symbols. When the last character is entered and OK is pressed, the following menu appears:
- To select a new access code, proceed as described above. When the last character is entered and OK is pressed, the screen displays the
menu below followed by the main menu.
- If you do not want to change the level 2 access code, press ESC to exit the new access code menu and go back to the main menu.
- If you have changed your access code but have forgotten it, you can reset it to the original code by entering the LEVEL 2 ACCESS CODE
menu and simultaneously holding down the +and RESET buttons for 10 seconds.
3.2.3 Access to level 3
A non-modifiable numeric code must be entered to access level 3:
- The following menu for entering this code appears when LEVEL 3 is selected.
- Using the +and –buttons, replace this first symbol (*) by the first character in the code and press OK. Do the same for the second, third and
fourth symbols. When the last character is entered and OK is pressed, the main menu appears.
3.2.4 Restricting access from level 3 to level 2
To restrict access from level 3 to level 2 only, go to the following menu
Press Enter. The following menu appears :
To restrict the controller to access level 2, select 'Yes' and press OK,.
3.2.5 Displaying the access codes on the controller after incorrectly entering the access codes:
- The digits in the access codes are replaced by the *symbol. When the +or –button is pressed, this symbol is replaced by the digit 0. The
digits in the code can then be selected using the +and – buttons.
The *symbol appears when the digit is confirmed by pressing OK.
- The following message appears for 5 seconds if the access code is not entered correctly.
- When an access level is changed, the following message is displayed for 5 seconds.
3.3 Configuring access levels on the controller
- All three access levels on all the boards are accessible for a total of 20 hours of 'on' time after the controller is first turned on. During this period
any defective boards may be removed and their replacement boards configured and checked to ensure correct operation of machine.
This time period will be automatically cancelled if a user switches to level 1 or level 2 before it ends.
When the time period ends, level 2 will be authorised unless the person commissioning the system chooses to restrict access by the end user to
level 1.
- If access level 3 is authorised in order to adjust the machine parameters and, for indeterminate reasons, it is left accessible to all users, only
level 2 access will be possible after a period of 4 hours.
- Commissioning of the machine can be prohibited simply by setting parameter P99 to 'No' in level 2.
Only those with the level 2 access code may re-enable commissioning of the machine.
LEVEL 2
NEW CODE
****
LEVEL 2
NEW CODE SAVED
LEVEL 3
ACCESS CODE
****
14-1 LEVEL 2 ACCESS
LEVEL 2 ACCESS
ONLY
YES/NO
WRONG CODE
ACCESS LEVEL x

EN - 12
3.4 Management of the numeric codes for accessing levels 2 and 3
- Access to level 3 is direct for anyone with a PC running the program needed to communicate with Xtraconnect 2 and who connects to the
board.
- Level 2 and level 3 access codes may be obtained only from CIAT Service technicians. Please contact your local CIAT Service office.
3.5 Classification of the menus and their functions
Level 1:
●Menu: Setpoint, Unit status, Measured values, Adjustment parameters, Reading parameters, Fault memory, Programming, Communication
and Access level selection.
●Function: all functions accessible via the console: On/Off, Reset (via the fault memory menu), Heating/Cooling selection, Setpoint 1/2
selection.
Level 2:
●Menu: all level 1 menus + test mode and master/slave mode.
Level 3:
●Menu: all level 2 menus and machine parameters.
IMPORTANT: all the controller parameters are available via the reading parameters menu in read-only mode regardless of the access level
(even level 1). The list of parameters starts at P1 and ends at P811.
4 LIST OF PARAMETERS
Access level: 1= Access to USER parameters (level 1 parameters only)
2= Access to viewable and editable parameters (levels 1 and 2). The numeric code is EDITABLE.
3 = Access to CIAT TECHNICIAN parameters (levels 1, 2 and 3). The numeric code is uneditable.
Access
level
No. Description Setting Default Display conditions
MACHINE CONFIGURATION
3 1 Refrigerant type R134a R134a
3 2 Unit type 1: Water-to-water; 2: Air-to-water 2
3 3 Number of circuits 2 - 3 2
3 8 Unit size
Condenserless 1800 - 2150 - 2500 - 2800 - 3050 -
3500 - 3600 - 3900 - 4200 - 4500 - 4800 1200 If P1 = R134a, P2 = 2 and P3 = 2
Condenserless 4850 - 5400 - 6000 - 6600 4850 If P1 = R134a, P2 = 2 and P3 = 3
1800 - 2150 - 2500 - 2800 - 3050 - 3500 - 3600 -
3900 - 4200 - 4500 - 4800 1800 If P2 = 1 and P3 = 2
3 9 Compressor start-up Star-Delta - Part Winding Star-Delta
3 15 Measurement of electrical quantities No - Yes No
3 16 Primary CT rating (module 1) 0 to 1000 A
500 A
if P2 = 1 and
P8 = 1800 to 2800
or P2 = 2, and P8 =
1800 to 2500
750 A
if P2 = 2, P3 = 2 and
P8 = 2800 to 3900 or
if P3 = 3 and
P8 = 4850, 5400
1000 A
if P2 = 1 and
P8 = 3050 to 4800 or
P2 = 2, P3 = 2 and
P8 = 4200 to 4800 or
if P3 = 3 and
P8 = 6000, 6600
If P15 = Yes
3 17 Secondary CT rating (module 1) 1 or 5 A 5 If P15 = Yes
3 18 Primary CT rating (module 2) 0 to 1000 A 500 A If P15 = Yes and P3 = 3
3 19 Secondary CT rating (module 2) 1 or 5 A 5 If P15 = Yes and P3 = 3
OPTION
2 21 Variable speed drive
1 - Without
2 - With acoustic optimisation
3 - With energy optimisation
Without
If P2 = 2 and P8 condenserless
Value 3 accessible only
if P42 No
2 24 Hydraulic module No - Yes No If P2 = 2 and P08 condenserless
2 25 Number of pumps delivered by CIAT 1-2 0 Visible if P24 = Yes
2 26 0-10 V configurable output Not used – 3-way valve – Variable speed pump 2 Not used Three-way valve, visible if
P2 = Water-to-water

EN - 13
Access
level
No. Description Setting Default Display conditions
OPTION (CONTINUED)
2 28 Master/slave control of two machines Yes/No No
2 29 Total recovery Yes/No No If P2 = 2
Breakdown
3 30 High pressure, HP1 sensor 10 to 50 bar (resolution: 0.1) 34
3 31 Low pressure, HP1 sensor –1 to 10 bar (resolution: 0.1) –0.5
3 32 High pressure, HP2 sensor 10 to 50 bar (resolution: 0.1) 34 If P3 = 2
3 33 Low pressure, HP2 sensor –1 to 10 bar (resolution: 0.1) –0.5 If P3 = 2
3 34 HP3 sensor high value 10 to 50 bar (resolution: 0.1) 34 If P3 = 3
3 35 HP3 sensor low value –1 to 10 bar (resolution: 0.1) –0.5 If P3 = 3
3 36 High pressure, LP1 sensor 10 to 50 bar (resolution: 0.1) 17.3
3 37 Low pressure, LP1 sensor –1 to 10 bar (resolution: 0.1) 0
3 38 High pressure, LP2 sensor 10 to 50 bar (resolution: 0.1) 17.3 If P3 = 2
3 39 Low pressure, LP2 sensor –1 to 10 bar (resolution: 0.1) 0 If P3 = 2
3 40 LP3 sensor high value 10 to 50 bar (resolution: 0.1) 17.3 If P3 = 3
3 41 LP3 sensor low value –1 to 10 bar (resolution: 0.1) 0 If P3 = 3
3 42 Electronic expansion valve Yes/No No
3 43 Superheat protection Yes/No No
3 44 Minimum superheat temperature 0 to 5 K (resolution: 0.1) 0.5 K If P43 = Yes
3 45 Maximum superheat temperature 10 to 20 K (resolution: 0.1) 15.0 K If P43 = Yes
3 48 Valve opening temperature 80 to +6°C (resolution 0.5) 110°C
3 49 Intake closing differential 5 to +6°C (resolution 0.5) 10°C
3 51 Discharge temperature limit 60 to +6°C (resolution 1) 115
3 52 Water line frost protection limit –25 to +6°C (resolution 0.1) 2
3 54 HP fault threshold 15 to 45 bar (resolution: 0.1) 18 b
3 55 LP fault threshold 0.1 to 5 bar (resolution: 0.1) 0.3 b
3 56 Minimum discharge superheat temperature 0 to 30 seconds (resolution: 1) 10°C
3 57 HPS cut-out HP value 15 to 30 bar (resolution: 0.1) 15.8 b
3 61 Liquid valve opening time 0 to 180 seconds (resolution: 1) 0
3 62 Liquid valve closing time 0 to 180 seconds (resolution: 1) 0
3 70 Control LP limit differential. 0 to 10 K (resolution: 0.5) 8
2 99 Parameter locking No - Yes No
Customer Configuration
2 100 Language F-GB-D-SP-I F
2 101 Date DAy/MOnth/YEar
2 102 Time HOurs/MInutes
1 103 Control mode Local - remote (BMS) Local
2 108 Pump 2 control. Fct (Control) - Fct (On/Off) if P2 = 1 Fct (on/off) If P24 = No
2 116 AEROCONNECT link Yes - No No
1 117 Power input limit No - At all times - Yes via on/off input - Yes via
bus No If P15 = Yes
1 118.1 Maximum power threshold 100 to 1000 kW 600 If P15 = Yes
1 118.2 Difference from max. power 5 to 100 kW 50 If P15 = Yes
Setpoint management
1 119 Operating mode
1 - Cooling
2 - Heating
3 - Cooling/heating via console
4 - Cooling/heating via on/off input
5 - Automatic cooling/heating based on
outdoor temperature
Cooling
1 120 Number of setpoints 1 - 2 via console - 2 via on/off input
3 Setpoint managed by 4-20 mA signal 1
1 121 Cooling setpoint 1 P52 + 3 K at 30°C (resolution: 0.1) 7 if P1411
9 if P141 = 1 P119 2 and P1204

EN - 14
Access
level
No. Description Setting Default Display conditions
Management of setpoints (continued)
1 122 Cooling setpoint 2 P52 + 1 K at 30°C (resolution: 0.1) 7 If P119 2, P120 = 2 or 3
1 123 Heating setpoint 1 20 to +6°C (resolution 0.1) 40 P119 1 and P120 4
1 124 Heating setpoint 2 20 to +6°C (resolution 0.1) 35 P119 1, P120 = 2 or 3
1 125.1 Low setpoint (4-20 mA) during COOLING: P52 + 3 K at 30°C P52 + 3 Displayed if P120 = 3 and cooling
mode activated
1 125.2 Low setpoint (4-20 mA) during HEATING 10 to 60°C 20 Displayed if P120 = 3 and heating
mode activated
1 126.1 High setpoint (4-20 mA) in COOLING mode: P125.1 +or –5 K at 30°C with minimum value of
P52 + 3 20 Displayed if P120 = 3 and cooling
mode activated
1 126.2 High setpoint (4-20 mA) in HEATING mode: P125.2 +or –5 K at 60°C with minimum value of
10°C 40 Displayed if P120 = 3 and heating
mode activated
1 127 Cooling setpoint adjustment = f (Tout) No - Yes No P119 Heating
1 128 Drift start –20 to 55°C (resolution: 1) 25 If P127 = Yes
1 129 Drift end P128 + 5K to 60°C (resolution: 1) 35 If P127 = Yes
1 130 Maximum setpoint at end of drift P52 + 3K to 30°C (resolution: 0.1) 15 If P127 = Yes
1 131 Heating setpoint adjustment = f (Tout) No - Yes No P119 Cooling
1 132 Drift start –20 to 55°C (resolution: 1) 15 If P131 = Yes
1 133 Drift end –25 to P132 –5K (resolution: 1) 5 If P131 = Yes
1 134 Maximum setpoint at end of drift The highest setpoint if P120 1 or
Setpoint if P120 = 1 to 60°C (resolution: 0.1) P123 If P131 = Yes
Control
2 141 Control mode 1-Return
2-Water supply 1 If P119 2 and if P120 1 and
P120 4
2 142 Water loop winter protection No - Yes No
2 143 Compressor stage differential 0.5 to 5 K (resolution: 0.5) 1 If P141 = 1
2 144 Interstage differential 0.5 to 5 K (resolution: 0.5) 2 If P141 = 1
Supply with compensation by return
2 145 P coefficient 0.3 to 2 (resolution: 0.1) 1 If P141 = 2
2 146 I coefficient 0 to 1 (resolution: 0.1) 0 If P141 = 2
2 147 D coefficient 0 to 1 (resolution: 0.1) 0 If P141 = 2
2 148 T coefficient 1 to 240 seconds (resolution: 1) 15 If P141 = 2
2 149 Additional exhaust coefficient 0 to 60 seconds (resolution 1) 5
2 150 Compensation factor 0.1 to 1 (resolution: 0.1) 0.5
2 151 Compensation time 5 to P148 - 2 (resolution: 1) 8
For storage control (Cristopia)
3 154 Storage Yes/No No If P119 2 and P120 1 and P120 
4
3 155 Control ΔT 0.5 to 10°C (resolution: 0.5) 5 If P154 = Yes
Load limit defrosting
2 170 Time between circuits (at start-up) 0 to 60 min. (10 s steps) 5 if P1411
0 if P141=1
2 175 Load shedding via on/off input Automatic/Selective Auto
Fan management
2 181 HP control setpoint 7 to 13 bar (resolution: 0.5) if P1 = R134a
7 bar
If P21 = 1
8 bar
if P21 = 3
6.8
if P21 = 3
Visible if P2 = Air-to-water
2 182 Outdoor air temperature, forced HP 10 to +6°C (resolution 1)
25
if P21 = 0 or 1.
30
if P21 = 2.
Visible if P2 = Air-to-water and P29 =
No

EN - 15
Access
level
No. Description Setting Default Display conditions
Fan management (continued)
2 185 Circuit 1 stage differential 2 to 6 bar
3.5
if P21 = 1, 2
3.8 if P21 = 3
If P2 = 2
2 186 Circuit 1 interstage differential 0.5 to 3 bar 0.5 If P2 = 2
2 187 Circuit 2 stage differential 2 to 6 bar 3.5 If P2 = 2
2 188 Circuit 2 interstage differential 0.5 to 3 bar 0.5 If P2 = 2
2 189 Circuit 3 stage differential 2 to 6 bar 3.5 If P2 = 2 and P3 = 3
2 190 Circuit 3 interstage differential 0.5 to 3 bar 0.5 If P2 = 2 and P3 = 3
High pressure control
3 193 Shifting of HP setpoint during total recovery 2 to 11 bar (resolution: 0.5) 4.5 If P29 = Yes
3 196 Normal condensing control return ΔP 0.1 to 1 bar (resolution: 0.1) 0.5 Visible if P2 = 2
2 197 Value at 0 V 10 to 25°C if P26 = 3-way valve 25°C Visible if P2 = Water-to-water and
P26 ≠not used
2 198 Value at 10 V 25 to 40°C if P26 = 3-way valve 35°C Visible if P2 = Water-to-water and
P26 ≠not used
Limits
3 220 Outdoor temperature, unit winter protection 2 to +6°C (resolution 1) 2 If P24 = Yes or P142 = Yes
3 221 Hydraulic module heater cut-in temperature
(ambient) –10 to 20°C (resolution: 1) +2 If P24 = Yes
3 222 Outdoor temp. differential, unit winter
protection 1 to 10 K (resolution: 1) 2 If P24 = Yes or P142 = Yes
3 225 Min. outdoor air temper. in HEATING mode –25 to 5°C (resolution: 1) DISABLED If P2 = Water-to-water and P119 ≠
Cooling only
3 225.1 Max. outdoor air temp. in COOLING mode 35 to +6°C (resolution 1) DISABLED If P2 = Water-to-water and Air-to-
water and P119 ≠Heating only
3 225.2 Max. outdoor air temp. in HEATING mode –5 to 25°C (resolution: 1) DISABLED If P2 = Water-to-water and P119 ≠
Cooling only
3 225.3 Mini. outdoor air temp. in COOLING mode –20 to 25°C (resolution: 1) DISABLED If P2 = Water-to-water and Air-to-
water and P119 ≠Heating only
2 227 Compressor 1 operation authorisation No - Yes Yes
2 228 Compressor 2 operation authorisation No - Yes Yes
2 229 Compressor 3 operation authorisation No - Yes Yes If P3 = 3
Operation
1 250 LED test
1 251 Control setpoint If P141 5 and 6
1 252 Outdoor air temperature
1 253 Evaporator water inlet temperature
1 254.1 Evaporator water outlet temperature (M1)
1 254.2 Evaporator water outlet temperature (M2) If P3 = 3
1 257 Condenser hot water inlet temperature If P2 = 1
1 258 Condenser hot water outlet temperature If P2 = 1
1 261.1 Manifold water outlet temperature If P3 = 3
1 261.2 Master/slave water outlet temperature If P3 = 3 P28 = Yes on master
machine
1 265 Hydraulic module temperature If P24 = Yes
1 270 Controller action time
1 272 Oil warm-up time
Cut lasting between 0 and 12 hours
Cut lasting between 12 and 24 hours
If cut longer than 24 hours
0
1 h
2 h
1 273.1 Supply voltage (Module 1) P15 = Yes
1 273.2 Supply voltage (Module 2) If P3 = 3 and P15 = Yes
1 274.1 Machine current input
1 274.2 Current input (module 1) If P3 = 3 and P15 = Yes
1 274.3 Current input (module 2) If P3 = 3 and P15 = Yes
1 275.1 Machine power input P15 = Yes
1 275.2 Power input (module 1) If P3 = 3 and P15 = Yes
1 275.3 Power input (module 2) If P3 = 3 and P15 = Yes
1 276.1 Electricity consumption P15 = Yes

EN - 16
Access
level
No. Description Setting Default Display conditions
Operation (continued)
1 276.2 Electricity (module 1) If P3 = 3 and P15 = Yes
1 276.3 Electricity (module 2) If P3 = 3 and P15 = Yes
1 285 Runtime in heating mode If P119 Cooling
1 286 Runtime in cooling mode If P119 Heating
1 287 Pump 1 runtime (in hours)
1 288 Pump 2 runtime (in hours)
1 289 No. of times P99 set to "No"
1 290 Number of water flow cut-offs in 1 hour Visible in cooling mode
Circuit 1
1 300 Circuit 1 HP
1 300.1 Circuit 1 HP control setpoint If P2 = Air-to-water and P3 = 1 or 2
1 301 Circuit 1 condensing temperature See appendix
1 302.1 Discharge temperature 1
1 303.1 Desuperheat on discharge 1 P302.1 - P 301
1 304 Circuit 1 LP
1 305 Circuit 1 evaporating temperature See appendix
1 306 Circuit 1 suction temperature (°C)
1 307 Circuit 1 superheat (°C)
1 309 No. of LP1 cut-outs in 24 hours
1 316 No. of circuit 1 start-ups
1 317 Circuit 1 runtime (in hours)
1 318 Circuit 1 short-cycle protection
1 324.1 No. of discharge 1 temp. cut-outs in 24 h
1 326 Circuit 1 liquid temperature (°C) If P2 = 1 or 2 or (3 + cooling mode)
1 327 Circuit 1 subcooling (°C) If P2 = 1 or 2 or (3 + cooling mode)
Circuit 2
1 330 Circuit 2 HP If P2 = Air-to-water and P3 = 2
1 330.1 Circuit 2 HP control setpoint If P3 = 2 and ≠Intertwined
1 331 Circuit 2 condensing temperature See appendix If P3 = 2
1 332.1 Discharge temperature 2 (°C)
1 333.1 Desuperheat on discharge 2 P332.1 - P 331
1 334 Circuit 2 LP If P3 = 2
1 335 Circuit 2 evaporating temperature See appendix If P3 = 2
1 336 Circuit 2 suction temperature (°C) P3 = 2
1 337 Circuit 2 superheat (°C) P3 = 2
1 339 No. of LP2 cut-outs in 24 hours If P3 = 2
1 346 No. of circuit 2 start-ups
1 347 No. of circuit 2 runtime (in hours)
1 348 Circuit 2 short-cycle protection
1 354 No. of circuit 2 discharge temperature cut-
outs in 24 hours
1 354.1 No. of discharge 2 temperature cut-outs in
24 hours
1 356 Circuit 2 liquid temperature (°C)
1 357 Circuit 2 subcooling (°C)
Circuit 3 display
1 360 Circuit 3 HP If P2 = Air-to-water and P3 = 3
1 361 Circuit 3 condensing temperature If P3 = 3
1 362 Circuit 3 discharge temperature If P3 = 3
1 363 Circuit 3 discharge desuperheat P363 - P362 If P3 = 3
1 364 Circuit 3 LP If P3 = 3
1 365 Circuit 3 evaporating temperature If P3 = 3
1 366 Circuit 3 suction temperature If P3 = 3
1 367 Circuit 3 superheat P366 - P365 If P3 = 3

EN - 17
Access
level
No. Description Setting Default Display conditions
Circuit 3 display (continued)
1 369 No. of LP3 cut-outs in 24 hours If P3 = 3
1 370 No. of circuit 3 start-ups If P3 = 3
1 371 Circuit 3 runtime (in hours) If P3 = 3
1 372 Circuit 3 short-cycle protection If P3 = 3
1 384 No. of circuit 3 discharge temperature cut-
outs in 24 hours
1 386 Circuit 3 liquid temperature (°C) If P3 = 3
1 387 Circuit 3 subcooling (°C) If P3 = 3
INPUTS
1 400 Automatic operation control of machine Open/Closed
1 401 Automatic operation control of water pump Open/Closed
1 402 Setpoint 1 / Setpoint 2 selection Open/Closed If P120 = 2 via on/off
1 403 Water flow check Open/Closed
1 404 Fan fault check Open/Closed If P2 = 2
1 405 Cooling/Heating input check Open/Closed If P119 = 4
1 406.1 Circuit 1/2 phase controller Open/Closed
1 406.2 Circuit 3 phase controller Open/Closed If P3 = 3
1 407 Recovery operating mode selection Open/Closed If P29 = Yes
1 408 Pump 1 check Open/Closed If P24 = Yes
1 409 Pump 2 check Open/Closed If P24 = Yes and P25 = 2
1 410 Emergency stop check (remote condenser) Open/Closed If P2 = 2
1 411 Customer check (unassigned input) Open/Closed
1 412 Compressor 1 fault check Open/Closed
1 413.1 Compressor 1 load shedding input check Open/Closed
1 418 Manual HP1 pressure switch input check Open/Closed
1 421 Compressor 2 fault check Open/Closed
1 422 Manual HP2 pressure switch input check Open/Closed If P3 = 2
1 425 Compressor 3 fault check Open/Closed If P3 = 3
1 426 Compressor 3 load shedding input check Open/Closed If P3 = 3
1 427 Manual HP3 pressure switch check Open/Closed If P3 = 3
OUTPUTS
1 447 Circuit 1 HP control drive voltage 0-10V If 21 ≠1
1 448 Circuit 2 HP control drive voltage 0-10V If 21 ≠1
1 449 Circuit 3 HP control drive voltage 0-10V If 21 ≠1 and P3 = 3
1 450 Water pump 1 state
1 451 Water pump 2 state
1 455 State of evaporator's electric defrost heater
1 456 Pipe heat trace cable state If P24 = Yes
1 457 State of hydraulic module's electric defrost
heater If P24 = Yes
1 460 State of circuit 1 fan stage 1 If P2 = 2
1 461 State of circuit 1 fan stage 2 If P2 = 2
1 462 State of circuit 1 fan stage 3 If P2 = 2
1 463 State of circuit 1 fan stage 4 If P2 = 2 and P8 > 2500
1 464 State of circuit 1 fan stage 5 If P2 = 2 and P8 > 2500
1 465 State of circuit 1 fan stage 6 If P2 = 2 and P8 > 2800
1 466 State of compressor 1 winding 1
1 467 State of compressor 1 winding 2
1 470 Compressor 1 reset
1 471 Compressor 1 intake valve state
1 472 Compressor 1 exhaust valve state
1 473 Circuit 1 liquid valve state
1 474 Circuit 1 HPS valve state
1 475 State of circuit 2 fan stage 1 If P2 = 2
1 476 State of circuit 2 fan stage 2 If P2 = 2

EN - 18
Access
level
No. Description Setting Default Display conditions
OUTPUTS (continued)
1 477 State of circuit 2 fan stage 3 If P2 = 2
1 478 State of circuit 2 fan stage 4 If P2 = 2 and P8 > 2500
1 479 State of circuit 2 fan stage 5 If P2 = 2 and P8 > 2500
1 480 State of circuit 2 fan stage 6 If P2 = 2 and P8 > 2800
1 481 State of compressor 2 winding 1
1 482 State of compressor 2 winding 2
1 485 Compressor 2 reset
1 486 Compressor 2 intake valve state
1 487 Compressor 2 exhaust valve state
1 488 Circuit 2 liquid valve state
1 489 Circuit 2 HPS valve state
1 490 State of circuit 3 fan stage 1
If P2 = 2 and P2 = 3
1 491 State of circuit 3 fan stage 2
If P2 = 2 and P2 = 3
1 492 State of circuit 3 fan stage 3
If P2 = 2 and P2 = 3
1 493 State of circuit 3 fan stage 4
If P2 = 2 and P2 = 3
1 494 State of circuit 3 fan stage 5
If P2 = 2 and P2 = 3
1 495 State of circuit 3 fan stage 6
If P2 = 2 and P2 = 3
1 496 State of compressor 3 winding 1 If P3 = 3
1 497 State of compressor 3 winding 2 If P3 = 3
1 500 Compressor 3 reset If P3 = 3
1 501 Compressor 3 intake valve state If P3 = 3
1 502 Compressor 3 exhaust valve state If P3 = 3
1 503 Circuit 3 liquid valve state If P3 = 3
1 504 Circuit 3 HPS valve state If P3 = 3
1 555 CPU version number
1 556 Console version number *
1 557.2 ADD3 board version number If P3 = 3
1 557.3 ADD3 board version number (circuit 3) If P3 = 3
1 557.4 ADD1 board version number (circuit 3) P3 = 3
1 570 "SO" order number To be entered via a PC
1 571 MO number To be entered via a PC
1 572 Machine identification name To be entered via a PC
1 573 Machine identification number To be entered via a PC
COMMUNICATION
1 700 Communication protocol ModBus ModBus
1 701 Transmission speed Jbus: 4800 or 9600 baud (adjustable) 9600 baud
1 702 Parity Without, even or odd Without
1 703 Number of stop bits 1 or 2 1
1 704 Swapped real number format Yes or No YES
1 705 Bus Number 0 to 255 1
MASTER/SLAVE (2 MACHINES)
2 800 Master machine on loop Yes/No No If P28 = Yes
2 801 Backup machine Yes/No No If P28 = Yes
2 802 Switch backup machine Yes/No No If P28 = Yes
2 803 Name of backup machine Master/Slave Slave If P28 = Yes
2 804 Loop control mode CASCADE or PARALLEL or PROGRESSIVE CASCADE If P28 = Yes
2 805 Machine differential 0.5 to 5°C 1.5 If P28 = Yes
2 806 Differential between machines 1 to 10°C 4.0 If P28 = Yes
2 807 Maximum differential, additional machine 1 to 10°C 0.0 If P801 = Yes
2 808 Time delay between machines 0 to 60 min. 1 If P28 = Yes
2 809 Machine 1 'on' authorisation Yes/No Yes If P28 = Yes
2 810 Machine 2 'on' authorisation Yes/No Yes If P28 = Yes
2 811 Pump turned off by control
No
Yes, except for one
Yes: stop machine
No

EN - 19
5 CONTENTS OF THE MENUS
The list of parameters as well as the parameter values will scroll faster and faster if you press and hold down the +or – the button.
To access a numbered submenu from the main menu, simply place the cursor on the corresponding line with the +or the –button then
press OK.
Important: In certain cases the last letter in a message may be replaced by an arrow.
5.1 Main menu
Use the cursor to move from one menu to the next.
Press the +button to increment values and the -button to decrement them.
5.2 Setpoint menu
This menu gives quick access to settings for the control setpoints depending on the control mode and the selected operating mode. To move
from one parameter to another, press +or–. The letter P flashes when a parameter is selected. To change the value, press OK. The value can
be changed once it starts flashing.
Press +to increase the value or – to decrease it.
When finished, press OK to confirm or ESC to cancel the changes.
When returning to menu 1 the last parameter consulted is displayed.
In access level 1, the setpoint adjustment range is +or –5 K lower than that set in a higher access level.
5.3 Unit status menu
The unit status is displayed at power-up and automatically reappears if the console is not used after a period of one hour.
To enter the UNIT STATUS menu, use the +or - buttons to position the cursor on 2 then press OK.
Press –to display the following message.
Table 1
- If no general faults have occurred and the automatic operation controls are closed.
The ↓arrow appears if there is another message.
- If a general fault corresponding to several faults occurs, the fault messages appear in order of importance.
Example:
1-SETPOINTS
2-UNIT STATUS
3-MEASURED VALUES
4-UNIT PARAMETERS
5-ADJUSTMENT PARAMETERS
6-READING PARAMETERS
7-FAULT MEMORY
8-TEST MODE
9-TIME SCHEDULES
11- COMMUNICATION
12- MASTER/SLAVE
13- AERO-CONNECT
14- ACCESS LEVEL SELECT.
P121 COOLING SETPOINT 1
-xx.x°
P122 COOLING SETPOINT 2
-xx.x°
P123 HEATING SETPOINT 1
-xx.x°
P124 HEATING SETPOINT 2
-xx.x°
XTRACONNECT2 hh/mn
INLET TEMP:-xx.x°
SETPOINT:-xx.x° ↓
1:OFF 2 :ON 3 :
UNIT STOP
WATER FLOW FAULT