Mitsubishi Electric PUZ-A12NKA7 Service Manual page 117

OPERATING PROCEDURE
10. Removing the high pressure switch (63H)
(1) Remove the service panel. (See photo 1)
(2) Remove the top panel. (See photo 1)
(3) Remove 3 right side panel fixing screws (5 × 12) in the
rear of the unit and remove the right side panel.
(4) Pull out the lead wire of high pressure switch.
(5) Recover refrigerant.
(6) 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
(210°F or more), then braze the pipes so that
the inside of pipes are not oxidized.
11. Removing the reactor (DCL) and capacitor (CE)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the electrical parts box. (See Photo 3)
<Removing the reactor>
(4) Remove the reactor fixing screws (6 places, 4 × 10) and
remove the reactor.
<Removing the capacitor>
(4) Remove 2 capacitor band fixing screws (4 × 10) and
remove the capacitor.
Note 1: The reactor and capacitor is attached to the rear
of the electrical parts box.
Note 2: The 3 pieces of reactors to be replaced must
have the same color of sticker. (Green, Orange,
or Blue)
OCH636A
Photo 9-1: PUZ model
High pressure
switch (63H)
Photo 9-2: PUY model
High pressure
switch (63H)
Photo 10
Reactor fixing
screws
Reactor fixing
screws
117
PHOTOS
Reactor
Electrical parts box
(DCL)
Capacitor band
Capacitor (CE)
fixing screws