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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9.11 CHECKING THE REFRIGERANT LOAD AND COOLING CIRCUIT OPERATION
WARNING!
The compressor needs to be started up a few minutes prior to running the checks!
Correct plant operation, which depends on the choice of fundamental components and the dosage of the refrigerant load,
can be checked from the cooling circuit operating values.
A correctly-installed unit that operates within the limits provided in this manual, will present values according to the fol-
lowing table:
Operating values of cooling circuits
Evaporation pressure Between 8 BarG and 12 BarG
Evaporation temperature Between 4 °C and 15 °C
Suction temperature Between 10 °C and 21 °C
Overheating Stable at 6 K
Compression ratio Greater than 1,6
Discharge temperature Between 55 °C and 80 °C
Condensation pressure Between 20 BarG and 38 BarG
Condensation temperature Between 35 °C and 60 °C
Desuperheating Between 20 K and 30 K
Liquid temperature Between 25 °C and 50 °C
Sub-cooling Between 2 K and 10 K
EEV expansion valve opening Lower than 90%
For units with two cooling circuits, the operating values will be checked with both circuits running.
Values diering from those provided in the table can mean that there is an incorrect refrigerant charge or operating condi-
tions that do not comply with the limits set forth herein.
9.11.1 VERIFY THE REFRIGERANT CHARGE WITH THE DC INVERTER COMPRESSOR
During cooling capacity throttling stages, the operating values may appear satisfactory, however, they may no longer be
correct at higher compressor speeds.
It is therefore essential that the compressor works at maximum speed before proceeding with the verication of the oper-
ating values of the circuit.
WARNING!
Once the charging operations of the cooling circuit are complete, it is mandatory to log the
full amount of refrigerant introduced in the circuit on the CE marking found in the unit.