Mitsubishi Electric CRHV-P600YA-HPB Service Handbook page 164

[ IX Troubleshooting ]
13
14
<MAIN> high-pressure check joint
<SUB> high-pressure check joint
HWE1312A
Suction pipes
1. Install the LEV pipes.
(Ø28.6)
2. Join the suction pipe and LEV pipe brazing portions.
LEV pipes
(Ø15.88)
1. Evacuate the system through the high-pressure check joint,
<MAIN> low-pressure check joint
2. Perform evacuation with a vacuum pump from the
3. While evacuation is being performed, assemble the unit by
4. Perform refrigerant charging from the high-pressure check
5. Attach the cover of the control box and the service panels to
<SUB> low-pressure check joint
- 157 -
and charge 400 cc of refrigerant oil through the low-pressure
check joint.
high-pressure check joints.
(Evacuating the system through the low-pressure check joint
will cause the oil in the refrigerant system to be discharged,
resulting in compressor malfunction.)
performing the procedure in reverse in the order of 8→7→6→
5→4→3.
joints.
(Be sure to perform refrigerant charging from the
high-pressure check joints so that a back pressure is not
applied to the compressor.)
complete the procedure.
GB