Rev. A 09-2017
40
DC
Industrial
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Site assembled refrigerant circuits must be assembled and maintained carefully, in order to prevent malfunctions.
Therefore:
•
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• In the event of a gas leakage on machines using refrigerant R134A, R410A even if it is only a partial leak, do not top up. The entire charge
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• When replacing any part of the refrigerant circuit, do not leave it exposed for more than 15 minutes.
•
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caps.
• When replacing the compressor following a burn out, it is advisable to wash the cooling system with appropriate products including a
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• When under vacuum do not switch on the compressor.
All decommissioning operations must be performed by authorized personnel in accordance with the national legisla-
tion in force in the country where the unit is located.
8.1 Disconnect the unit
8. DECOMMISSIONING
• Avoid spills or leaks into the environment.
• Before disconnecting the machine please recover:
• the refrigerant gas;
• Glycol mixture in the hydraulic circuit;
• the compressor lubricating oil.
Before decommissioning the machine can be stored outdoors, providing that it has the electrical box, refrigerant circuit and hydraulic circuit
intact and closed.
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The frame and components, if unusable, should be taken apart and sorted by type, especially copper and aluminum that are present in
large quantities in the machine.
All materials must be recovered or disposed in accordance with national regulations.
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For leak detection, the system should be charged with nitrogen using a gas bottle with a pressure reducing valve, until 15 bar pressure is
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the proper alloys.
If the refrigerant circuit is to be emptied, all the refrigerant must be recovered using the correct equipment.
Never use oxygen instead of nitrogen: explosions may occur.
