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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9.9.7 CHARGING THE CIRCUIT WITH REFRIGERANT
WARNING!
Cooling circuit recharging operations need to be carried out with the unit running. Make sure
that the electrical connections are correct.
Always charge the refrigerant in its liquid state. Make sure that the connections between
pipes and cylinder are always set up correctly.
Before charging the circuit, check that the refrigerant cylinder is equipped with a dip tube
for the liquid refrigerant.
Equipped with dip tube Not equipped with dip tube
Charge the liquid refrigerant
with the cylinder in the up-
right position.
Charge the liquid refrigerant
with the cylinder in the upside
down position.
RISK OF BURNS!
Some parts of the cooling circuit may be hot!
It is recommended to perform refrigerant charge operations with ambient temperature within the unit's operating limits. A
lower or higher temperature may compromise the actual circuit charge.
In order to charge completely proceed as follows (keeping in mind that the refrigerant must always be charged in liquid
phase):
1) Make sure that circuit cocks are completely opened.
2) Check that the pressure gauges are compatible with the pressure of the refrigerant used (R410a).
3) Connect the pressure gauges to the cooling circuit as shown in the picture.
4) Check that the refrigerant tank is the type of refrigerant used (R410a).
5) Place the refrigerant tank on the calibrated scales.
6) Connect the refrigerant tank to the pressure gauge unit.
7) Place the pressure gauge in "Charge" position.
8) Open the HIGH PRESSURE SIDE lling valve to insert refrigerant until it approximately reaches 2/3 of the calculated quantity.
9) Open the recharging valve on the LOW PRESSURE SIDE, adding enough refrigerant to eliminate the empty condition.
10) Load any amount of top up oil through the provided valve placed on the compressor.
11) Feed the unit and wait for a few minutes.
12) Place the unit on ON, starting up the fans.
13) Start the compressor, being especially careful with double circuit units.
14) Verify overheating and operational parameters in order to evaluate the charge.
15) Calibrate the remote condenser speed variator to the temperature of required condensation.
16) Open the recharge valve on the LOW PRESSURE SIDE to integrate small amounts of refrigerant to full the correct operating
values.
A Coil
B Compressor
C Pressure gauges
D Refrigerant
A
C
B
D