SYSTEMP – Installation Operation Manual (IOM SYSTEMP rev.N)
Table Of Contents
- WARRANTY CONDITIONS
 - 1 DESCRIPTION OF UNITS AND OPERATING LIMITS
 - 2 TRANSPORTATION, POSITIONING AND INSTALLATION PROCEDURES
 - 3 PLENUMS, VENTILATED PLENUMS AND DUCT SECTIONS (ACCESSORY)
 - 4 FREE COOLING PLENUM (ACCESSORY)
 - 5 ADJUSTABLE AND VENTILATED PLINTHS (ACCESSORY)
 - 6 TMC AIR-COOLED CONDENSER PLACEMENT AND INSTALLATION
 - 7 CONNECTION OF CONDENSATE DISCHARGE AND HUMIDIFIER
 - 8 WATER CIRCUIT CONNECTIONS
 - 9 COOLING CONNECTIONS
- 9.1 ROUTING OF THE COOLING CIRCUIT PIPES
 - 9.2 COOLING CIRCUIT SIZING
 - 9.3 COOLING CIRCUIT INSTALLATION
 - 9.4 UNIT COOLING PIPE CONNECTION
 - 9.5 AIR-COOLED CONDENSER CONNECTION
 - 9.6 COOLING CIRCUIT VACUUM DRYING OPERATIONS
 - 9.7 CHARGING THE COOLING CIRCUIT
 - 9.8 PRECAUTIONS
 - 9.9 LUBRICATING OIL FILLING IN THE CIRCUIT
 - 9.10 TMC CONDENSER PRESSURE REGULATOR (ACCESSORY)
 - 9.11 CHECKING THE REFRIGERANT LOAD AND COOLING CIRCUIT OPERATION
 - 9.12 PRECAUTIONS AGAINST REFRIGERANT LEAKS
 - 9.13 CHECKING THE MAXIMUM CONCENTRATION OF REFRIGERANT
 
 - 10 EXAMPLES OF WATER AND COOLING CIRCUITS
- 10.1 EXAMPLE OF CHILLED WATER CIRCUIT
 - 10.2 TMC AIR-COOLED CONDENSER COOLING CIRCUIT
 - 10.3 COOLING CIRCUIT WITH SINGLE COMPRESSOR AND REMOTE CONDENSER
 - 10.4 COOLING CIRCUIT WITH SINGLE COMPRESSOR AND WATER-COOLED CONDENSER
 - 10.5 COOLING CIRCUIT WITH DOUBLE COMPRESSOR AND REMOTE CONDENSER
 - 10.6 COOLING CIRCUIT WITH DOUBLE COMPRESSOR AND WATER-COOLED CONDENSER
 - 10.7 TWO SOURCES WATER CIRCUIT WITH CHILLED WATER CIRCUITS
 - 10.8 TWO SOURCES COOLING CIRCUIT WITH SINGLE COMPRESSOR AND REMOTE CONDENSER
 - 10.9 TWO SOURCES COOLING CIRCUIT WITH SINGLE COMPRESSOR AND WATER-COOLED CONDENSER
 - 10.10 TWO SOURCES COOLING CIRCUIT WITH DOUBLE COMPRESSOR AND REMOTE CONDENSER
 - 10.11 TWO SOURCES COOLING CIRCUIT WITH DOUBLE COMPRESSOR AND WATER-COOLED CONDENSER
 - 10.12 COOLING CIRCUIT WITH FREE COOLING AND SINGLE COMPRESSOR
 - 10.13 COOLING CIRCUIT WITH FREE COOLING AND DOUBLE COMPRESSOR
 
 - 11 ELECTRICAL CONNECTIONS
- 11.1 RS485 SERIAL COMMUNICATION BOARD CONNECTION (Modbus RTU - BACnet MS/TP)
 - 11.2 ETHERNET RJ45 PORT CONNECTION (Modbus TCP - BACnet IP - Web Server)
 - 11.3 CANbus LAN CONNECTION (ACCESSORY)
 - 11.4 REMOTE CONTROL TERMINAL CONNECTION (ACCESSORY)
 - 11.5 WALL-MOUNTED TEMPERATURE AND HUMIDITY PROBE CONNECTION (ACCESSORY)
 - 11.6 DUCTED TEMPERATURE AND HUMIDITY PROBE CONNECTION (ACCESSORY)
 - 11.7 CONNECTION OF THE SMOKE AND FLAME DETECTORS SUPPLIED (ACCESSORY)
 - 11.8 WATER DETECTION PROBE CONNECTION (ACCESSORY)
 - 11.9 CONNECTION OF FREE COOLING PLENUM MOTORISED DAMPER ACTUATORS (ACCESSORY)
 - 11.10 AIR-COOLED CONDENSER POWER SUPPLY AND REGULATION CONNECTION (ACCESSORY)
 
 - 12 ROUTINE AND SPECIAL MAINTENANCE
 - 13 DEACTIVATION, DISMANTLING AND DISPOSAL
 - 14 APPENDIX 1: RECOMMENDED EQUIPMENT
 - 15 APPENDIX 2: PRELIMINARY CHECKS AND FIRST START-UP
 - 16 APPENDIX 3: FAULT DIAGNOSIS
 - 17 NOTES
 
72 
10.9  TWO SOURCES COOLING CIRCUIT WITH SINGLE COMPRESSOR AND WATER-COOLED CONDENSER
The following image represents the cooling circuit in two sources units with single compressor and water-cooling condens-
er.
Cooling circuit:
Liquid line (HP: PS 41 Bar - TS 64 °C):
A  Water-cooled condenser
B  Pressure intake SAE 5/16” male are
C  Liquid temperature probe
D  Liquid receiver
E  Dehydrator lter with liquid sight glass
F  Electronic expansion valve
Suction line (LP: PS 22 Bar - TS 38 °C):
G  Pressure intake SAE 5/16” male are 
(for refrigerant charging)
H  Direct expansion coil
I  Fan
J  Evaporation pressure probe
K  Suction temperature probe
L  Antifreeze hot gas injection valve
Hot gas line (HP: PS 41 Bar - TS 64 °C):
M  Compressor
N  Discharge temperature probe
O  High pressure switch with manual 
reset (41 Bar)
P  Condensation pressure probe
Q  Pressure intake SAE 5/16” male are
* DC inverter compressor (accessory)
Water circuit:
a  Water inlet
b  Inlet water temperature
c  Manual air vent valves
d  Chilled water coil
e  3-way ball valve
f  Water outlet
g  Adjustment valve of water-cooled 
condenser (accessory)
** 2-way ball valve (accessory)
c
a f
eb
c
d
L
a
Q
E
G
C
B
I
H
J
c
F
G
P
K
A
O
M
N
c
g
f
D










