Parts Replacement Procedures - Mitsubishi Electric CAHV-R450YA-HPB Service Manual

[ X Troubleshooting ]

[5] Parts Replacement Procedures

WARNING
Do not use refrigerant other than the type indicated in
the manuals provided with the unit and on the
nameplate.
• Doing so may cause the unit or pipes to burst, or result in
explosion or fire during use, during repair, or at the time of
disposal of the unit.
• It may also be in violation of applicable laws.
• MITSUBISHI ELECTRIC CORPORATION cannot be held
responsible for malfunctions or accidents resulting from the
use of the wrong type of refrigerant.
1. Compressor replacement instructions
Procedure
(1) Unscrew the six screws, and remove service panel FU on
the left.
(2) Unscrew the four screws, and remove the control box
panel. Turn OFF the switch SWS1 on the control board,
and turn OFF the main power supply (breaker).
(3) Unscrew the nine screws, and remove the service panels
FB and FU.
HWE22020
Control box panel
Panel FU
Panel FB
- 159 -
Illustration
Panel FU
Screws (6 places)
Screws (4 places)
Screws (9 places)
GB