Gree Ultra Heat GMV Multi VRF Heat Recovery Series Service Manual page 172

Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial
6. Remove the compressor.
7. Install a new compressor
on the chassis.
8. Connect the suction
and discharge pipes of
the compressor to the
pipeline system.
9. Connect the power line
to the compressor, and
install the electric heating
belt and discharge air
temperature sensor.
●Remove the compressor from the chassis.
●Put the compressor in a proper position.
●Use a wrench to screw the nuts on the
compressor.
●The compressor should not be installed upside
down.
●Heat the suction and discharge pipes by
acetylene welding and then install 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.
●Put the power line in a proper position.
●Use a screwdriver to screw the power line.
●Install the electric heating belt and discharge
air temperature sensor.
●Put the sound-proof sponge back to position.
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MAINTENANCE