GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
189
For GMV-400WM/B-X and GMV-450WM/B-X variable frequency units, their compressors are both
inverter compressors, differing in models. The one close to the condenser is compressor 1
―E655DHD-65D2YG‖ and the other close to the liquid separator head is compressor 2
―E405DHD-38D2YG‖. The removal procedure is basically the same.
Compressor –
frequency
variable
Name-
plate
After the compressor and oil separator are removed, check oil quality. If oils are contaminated, replace
the compressor, oil separator, and gas/liquid separator. If oil changes to black, check oils of other
modular units. The check procedure is similar to the preceding.
Note: Before replacing the faulty compressors, make sure to block their openings with tapes. They
should be kept intact for further analysis.
Step 5: Check system parts.
If system oil is contaminated, check unit parts, including oil separator, gas/liquid separator, and storage
tank.
1. Check oil separator.
Remove the oil separator. For the removal procedure, refer to step 4. Tilt the separator to draw oil out
into a container. Block the container for further factory inspection.
1. Inlet of inverter
compressor
2. Outlet of
inverter
compressor
3. Unscrew the
compressor
To Next Page
Loading...
