Mitsubishi Electric PUHZ-SW75VAA-SC Service Manual page 76

OPERATING PROCEDURE
12. Removing the compressor (MC)
(1) Remove the service panel. (See Photo 1)
(2) Recover refrigerant.
(3) Remove the electrical parts box. (See Photo 3-1)
(4) Remove the valve bed. (See Photo 3-1)
(5) Remove the side panel (R). (See Photo 1)
(6) Remove the thermistor <Liquid> (TH3), thermistor
<2-Phase Pipe> (TH6), thermistor <Ambient> (TH7),
thermistor <Discharge> (TH4) and thermistor <Comp.
Surface> (TH33).
(7) Remove the 4-way valve coil and LEV coil.
(8) Disconnect the lead wire from the pressure switch and
sensor.
(9) Loosen the rubber mount fixed to the receiver pipes with
band.
(10) Remove the comp case (side) fixing screws (1 for front
and 1 for right/ 4 x 10) to remove the comp case (side).
(11) Remove the welded part (Joint part of the compressor,
heat exchanger and receiver) of piping (6 positions), then
slide the piping upward to remove it.
(12) Remove the compressor fixing nuts (3 for top/ M6) to
remove the compressor.
Note 1: Recover refrigerant without spreading it in the air.
2: Tighten the nuts of compressor with a torque of
4 ± 0.4 N·m.
13. Removing the receiver
(1) Remove the service panel. (See Photo 1)
(2) Recover refrigerant.
(3) Remove the piping.
(4) Remove the receiver leg fixing screws (2 for top/ 4 × 10),
then slide the receiver upward to remove it.
(The receiver is fixed to the base with a hook on the bottom.)
Note 1: Recover refrigerant without spreading it in the air.
14. Removing the reactor (ACL1, ACL2, ACL3) (Y model only)
(1) Remove the electrical parts box. (See Photo 3-1)
(2) Remove the reactor assy fixing screws (8 for right/ 4 ×
10), then slide the reactor assy upward to remove it.
(3) Remove the reactor fixing screws (4 for front/ 4 × 10), to
remove the reactor on the reactor assy.
Note 1: Pay extra attention when handling the reactor
since it is very heavy (4.1 kg).
OCH651A
PHOTOS
Photo 11-1
4-way valve coil
fixing screw
4-way
valve coil
High
pressure
sensor
High
pressure
switch
Comp case (side)
Compressor
Photo 11-2
Photo 12
Reactor assy Reactors
76
4-way valve
LEV
LEV coil
(LEV-A)
LEV coil
(LEV-B)
Reciever
Valve bed
Receiver leg fixing
screws
Rubber mount
Receiver pipes
Receiver