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
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9.5 AIR-COOLED CONDENSER CONNECTION
The refrigerant inlet and outlet connections on the air-cooled condenser can be identied by their adhesive labels. To facili-
tate the connection there is a section of pipe approximately 100 mm long, crimped and welded shut on the free end.
A check valve (supplied loose) has to be installed on the liquid pipe. When installing the valve, make sure the direction of
the arrow matches the direction of ow. The check valve can be installed with a vertical or inclined longitudinal axis and the arrow
facing upward, and with a horizontal axis.
A Supply line tting
B Liquid line tting
C Check valve
Horizontal installation Vertical installation
9.5.1 TMC CONDENSER CONNECTION DIMENSIONS
The diameters of the TMC condensers’ cooling connections for supply and liquid pipes (depending on the size of standard
models identied by the code number sequence) are indicated in the order conrmation or in the following table:
TMC condenser connection dimensions
Standard
models
Supply pipe ttings Ø Liquid pipe ttings Ø
Standard
models
Supply pipe ttings Ø Liquid pipe ttings Ø
mm ODS mm ODS mm ODS mm ODS
11 16 16 49 28 28
19 16 16 55 28 28
31 22 22 63 28 28
35 28 28 84 35 28
40 28 28 92 42 35
9.5.2 LAC (LOW AMBIENT CONTROL) VALVE CONNECTION (ACCESSORY)
The purpose of the LAC (Low Ambient Control) valve is to by-pass the condenser, injecting hot gas into the liquid pipe, to
keep the pressure of the liquid refrigerant stable below 20 BarG. It is recommended to use the LAC valve in very cold climates, in the
case of inverter compressors and in the case of condensers that are oversized compared to the actual needs of the units.
The LAC valve (included with the supply) must be installed on the air-cooled condenser’s cooling connections as shown in
the gure. The temperature probe needs to be left free to read the ambient temperature. Moreover, a check valve (not supplied) has
to be installed on the liquid pipe. When installing the valve, make sure the direction of the arrow matches the direction of ow. It is
advisable to install the check valve with vertical axis and the arrow facing upwards; installations with inclined or horizontal longitu-
dinal axes are tolerable.
1 Hot gas connection (D)
2 Condenser outlet connection (C)
3 Liquid line connection (R)
4 Temperature probe
A Hot gas line
B Air-cooled condenser
C LAC (Low Ambient Control) valve
D Temperature probe
E Check valve
F Liquid line
LAC valve LAC valve connection
A
B
C
A
B
C
1
2
3
4
A
B
C
D
E
F