Removing The High Pressure Switch (63H); Removing The Motor For Compressor (Mc); Removing The Accumulator - Mitsubishi Electric Mr.SLIM PU-P71VHA Service Manual

OPERATING PROCEDURE

9. Removing the high pressure switch (63H)

(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Remove the electrical parts box. (See Photo 3)
(4) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit and remove the right side panel.
(5) Pull out the lead wire of high pressure switch.
(6) Collect the refrigerant.
(7) Remove the welded part of high pressure switch.
Note 1: Recover refrigerant without spreading it in the air.
Note 2: The welded part can be removed easily by
removing the right side panel.
Note 3: When installing the high pressure switch, 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.

10. Removing the motor for compressor (MC)

(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Remove 2 front cover panel fixing screws (5 × 10) and
remove the front cover panel. (See Photo 3)
(4) Remove 2 back cover panel fixing screws (5 × 10) 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 × 10) in the
rear of the unit and then remove the right side panel.
(8) Remove 3 separator fixing screws (4 × 10) and remove the
separator.
(9) Collect the refrigerant.
(10) Remove the 3 points of the motor for compressor fixing
nut using a spanner or a monkey wrench.
(11) Remove the welded pipe of motor for compressor inlet
and outlet and then remove the compressor.
Note: Recover refrigerant without spreading it in the air.

11. Removing the Accumulator

(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Remove 2 front cover panel fixing screws (5 × 10) and
remove the front cover panel. (See Photo 3)
(4) Remove 2 back cover panel fixing screws (5 × 10) 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 × 10) in the rear
of the unit and then remove the right side panel.
(8) Collect the refrigerant.
(9) Remove welded pipes of Accumulator inlet and outlet.
Note: Recover refrigerant without spreading it in the air.
OC379F
PHOTOS
Photo 8
Lead wire of
high pressure switch
Photo 9
Separator
Separator
fixing screw
Photo 10
76
High pressure switch (63H)
Compressor (MC)
Compressor
fixing nut
Inlet
Outlet
Accumulator
Accumulator leg
fixing screws