Mitsubishi Electric CAHV-R450YA-HPB Service Manual page 171

[ X Troubleshooting ]
(12) Disconnect the discharge pipe, suction pipe, and injection
pipe from the compressor by removing the braze.
(13) Pull out the compressor, and replace it.
(Be careful not to get the injection pipe caught with the
suction pipe of the compressor.)
(14) After removing the compressor, remove the four
vibration isolation rubber mounts, two screws,
saddle, and sheet metal, and install a new
compressor.
(15) Place the compressor on the compressor stand.
(16) Fit the double-shaft bolt to a torque of 17.5±20% N ・ m and the nut SP to a torque of 9.8 N ・ m.
(17) Connect the discharge pipe, suction pipe, and injection pipe by brazing.
(18) Vacuum the system through the low-pressure check joint with a vacuum pump.
(19) Charge the refrigerant through the high-pressure check joint.
(To prevent back pressure from being applied to the compressor, be sure to charge the refrigerant through the high-pres-
sure check joint.)
(20) Reinstall the removed wires, compressor cover, and panels to complete the procedure.
HWE22020
Brazed area
Vibration isolation rubber mounts (4 places)
Compressor stand
- 162 -
Saddle Sheet metal
Screws (2 places)
GB