Removing The Power Receiver; Removing The High Pressure Sensor (63Hs) - Mitsubishi Electric PUHZ-SHW230YKA2 Service Manual

OPERATING PROCEDURE

12. Removing the power receiver

(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove 2 front cover panel fixing screws (5 × 12) and
remove the front cover panel.
(4) Remove 4 back cover panel fixing screws (5 × 12) and
remove the back cover panel.
(5) Remove the electrical parts box. (See Photo 3)
(6) Remove 3 valve bed fixing screws (4 × 10) and 4 ball
valve and stop valve fixing screws (5 × 16) and then
remove the valve bed.
(7) Remove 3 right side panel fixing screws (5 × 12) in the
rear of the unit and then remove the right side panel.
(8) Recover refrigerant.
(9) Remove 4 welded pipes of power receiver inlet and outlet.
(10) Remove 2 receiver leg fixing screws (4 × 10).
Note: Recover refrigerant without spreading it in the air.

13. Removing the high pressure sensor (63HS)

(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Pull out the lead wire of high pressure sensor.
(4) Remove the band that is fixing the rubber mount and the
sensor.
(5) Recover refrigerant.
(6) Remove the welded part of high pressure sensor.
Note 1: Recover refrigerant without spreading it in the
air.
Note 2: The welded part can be removed easily by remov-
ing the right side panel.
Note 3: When installing the high pressure sensor, make
sure to cover it with a wet cloth to prevent it from
heating (100°C or more), then braze the pipes so
that the inside of pipes are not oxidized.
OCH594B
PHOTOS/FIGURES
Photo 9
Valve bed
fixing screw
Valve bed
Separator
Compressor
Separator fixing
screw
Compressor fixing nuts
Photo 10
Inlet piping
Figure 6
High pressure
switch (63H)
Muffler
High pressure
sensor (63HS)
Rubber mount
62
Power receiver
Valve bed
fixing screws
Power receiver
leg fixing screws
Outlet piping
Power receiver
4-way valve
Low pressure
switch (63L)
Fixing band
Compressor
(MC)