Gree Ultra Heat GMV Multi VRF Heat Recovery Series Service Manual page 155

Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial
you will reconnect them in a correct manner after clearing. The removed electric box must be covered
and protected from wind and sun.
After the box is removed, take care with the removal of electric parts' lines. DO NOT pull the lines
with excessive force; or they may be broken. The removed electric box must be protected for dustproof
and waterproof purposes.
Step 3: Release refrigerant.
Refrigerant should be released from the high pressure side and low pressure side at the same time.
If it is released from one side only, the scroll is sealed, causing the refrigerant to fail to be released
completely. Control the release speed (it is expected to release for 12 hours or more). If too fast,
massive lubricant will be discharged with the refrigerant. Make sure to mark the valves. At the low
pressure side, refrigerant is released through the low pressure check valve.
Step 4: Remove faulty compressors.
Confirm faulty compressors, including number of faulty ones, compressor position, and model.
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