Mitsubishi Electric PUZ-A12NKA7 Service Manual page 112

OPERATING PROCEDURE
11. Removing the high pressure switch (63H)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the electrical parts box. (See Photo 4)
(4) R emove 3 right side panel fixing screws (5 × 12) in the
rear of the unit and remove the right side panel.
(5) Pull out the lead wire of high pressure switch.
(6) Recover 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.
12. Removing the reactor (DCL)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the electrical parts box. (See Photo 4)
(4) R emove the reactor fixing screws (4 places, 4 × 10)
Note: The reactor is attached to the rear of the electri-
cal parts box.
OCH636A
PHOTOS
Photo 9
Lead wire of
high pressure switch
Photo10
Reactor fixing screw
Reactor fixing screws
112
High pressure
switch (63H)
Reactor
(DCL)
Electrical parts box