Gree Ultra Heat GMV-V72W/A-F, Service Manual, Page: 151 / 240

Ultra Heat GMV VRF Technical Service Manual MAINTENANCE
146
2. Remove the electric box.
●Disconnect internal and external connecting
lines of the electric box.
●Protect the internal parts during the
disassembly.
3. Disconnect the power
line of the compressor, and
remove the electric heating
belt, top temperature
sensor, and discharge air
temperature sensor.
●Remove the sound-proof sponge from the
compressor.
●Use a screwdriver to unscrew the power line.
●Remove the power line.
●Remove the electric heating belt and discharge
air temperature sensor.
Note: Before removing the power line, mark the
colors of the line and corresponding wiring
terminals.
4. Loosen the nuts of the
compressor.
●Use a wrench to unscrew the four nuts.
5. Remove the suction and
discharge pipes.
●Heat the suction and discharge pipes by
acetylene welding and then remove the pipes.
●During welding, charge nitrogen into the pipes.
The pressure should be controlled within 0.5±0.1
kgf/cm2 (relative pressure).
●Avoid nearby materials from being burnt during
welding.