Gree Ultra Heat GMV-V72W/A-F, Service Manual, Page: 138 / 240

Ultra Heat GMV VRF Technical Service Manual MAINTENANCE
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Use a glass container to hold the liquid. Check liquid impurities and colors and block the container
for further factory inspection.
Note: If the compressor needs replacement, the gas/liquid separator needs replacement as well,
regardless whether the separator contains impurities or has faults or not.
(3) Check oil return pipe and oil balance pipe.
Remove oil return pipe and oil balance pipe, and check oil volume and impurity.
Note: Before replacing the faulty parts, make sure to block their openings with tapes. They should
be kept intact for further analysis. Volumes of oils drawn out from the oil separator, and gas/liquid
separator should be recorded. After faulty compressors and parts are replaced, you should fill new oils
of equivalent amount into the compressors and parts.
Oil balance pipe
Oil return pipe