Removing The High Pressure Switch; Removing The Compressor (Mc) - Mitsubishi Electric PUHZ-RP250YHA2 Service Manual

OPERATING PROCEDURE
10. Removing the high pressure switch (63H)(63H1)(63H2)
and the low pressure switch (63L)
(1) Remove the service panel. (See figure 1.)
(2) Remove the top panel. (See figure 1.)
(3) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit and remove the right side panel.
(4) Pull out the lead wire of high pressure switch and low
pressure switch.
(5) Recover refrigerant.
(6) Remove the welded part of high pressure switch and low
pressure switch.
63H(For RP200)
63H1, 63H2, 63L(For RP250)
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 parts of refrigerant cir-
cuit, 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.

11. Removing the 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.
(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), 4 ball valve
and stop valve fixing screws (5 × 16), then remove the
valve bed.
(7) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit and remove the right side panel.
(8) Remove 3 separator fixing screws (4 × 10) and remove
the separator.
(9) Remove the soundproof cover for compressor.
(10) Remove the terminal cover and remove the compressor
lead wire.
(11) Recover refrigerant.
(12) Remove the 3 points of the compressor fixing nut using a
spanner or a adjustable wrench.
(13) Remove the welded pipe of compressor inlet and outlet
and remove the compressor.
Note: Recover refrigerant without spreading it in the air.
PHOTOS
Photo 8
High pressure switch
Photo 9
96
(Photo:PUHZ-RP200YHA2)
Compressor
terminal
Compressor
(MC)
Soundproof
cover
Compressor
fixing nut