GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
187
Step 5: Remove faulty compressors.
Confirm faulty compressors, including number of faulty ones, compressor position, and model.
Handling procedure varies with compressor model.
1. Inverter compressors and oil quality
If the inverter compressor is damaged, or the oil of the fixed speed compresor is contaminated, remove
the inverter compressor. The procedure is as follows:
Refrigerant should be
released from the high
pressure side and low
pressure side at the
same time. Control the
release speed. At the low
pressure side, refrigerant
is released through the
low pressure check valve.
At the high pressure
side, refrigerant is
released through
the high pressure
sensor.
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