Disassembly Procedure - Mitsubishi Electric PCA-A24KA4 Service Manual

11

DISASSEMBLY PROCEDURE

PCA-A24KA4
PCA-A36KA4
OPERATING PROCEDURE
1. Removing the air intake grille
(1) Slide the air intake grille holding knobs (at 2 or 3 loca-
tions) to the rear to open the air intake grille. (See Figure 1)
(2) While the air intake grille left open, push the stoppers
on the rear hinges (at 2 or 3 locations) to pull out the air
intake grille. (See Figure 2)
Figure 2
hinges
Pull out the air intake grille
2. Removing the indoor controller board and the electrical box
(1) Remove the air intake grille. (See Figure 1,2)
(2) Remove the beam by removing 1 screw (4
Photo 1)
(3) Remove 2 screws from the electrical cover, and remove
the electrical cover.
(4) Remove 2 screws from the electrical box and pull the
electrical box downward.
Temporarily secure the electrical box using 2 hooks in
the back of electrical box.
(5) Disconnect the connectors on the indoor controller
board.
[Removing the electrical box]
(6) Disconnect the wires from the terminal blocks and pull
out the electrical box. (See Photo 2)
[Removing the indoor controller board]
(6) Remove the 6 supports from the indoor controller board
and remove the indoor controller board. (See Photo 3)
PCA-A30KA4
PCA-A42KA4
8 PT) (See
×
PHOTOS & ILLUSTRATIONS
Figure 1
Air intake grille
Air intake grille
holding knobs
Photo 1
Electrical cover
Photo 2
Electrical box
Photo 3
Room temperature
thermistor (TH21)
31
Be careful when removing heavy parts.
(Photo: PCA-A36KA4)
slide
Beam fixing screw
Beam
(4 × 8 PT)
Electrical cover
fixing screws (4 × 8 ST)
Electrical box fixing screws
Indoor controller
board (I.B.)
Terminal blocks
(TB4) (TB5)