Disassembly Procedure - Mitsubishi Electric PLFY-WP32VBM-E Technical & Service Manual

10

DISASSEMBLY PROCEDURE

PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
OPERATING PROCEDURE
1. Removing the air intake grille
(1) Slide the knob of air intake grille toward the arrow 1 to
open the air intake grille.
(2) Remove drop prevention hook from the panel.
(3) Slide the shaft in the hinge to the direction of the arrow 2
and remove the air intake grille.
2. Removing the room temperature detection thermistor (TH21)
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the electrical box cover.
(3) Disconnect the connector CN20 (Red) from the indoor con-
troller board.
(4) Remove the room temperature detection thermistor.
3. Removing the address board (A.B)
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the address board cover.
(3) Disconnect the connectors CN43 (RED/4P) and CN82
(RED/8P).
(4) Slide and remove the address board.
4. Removing the indoor controller board (I.B)
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the electrical box cover.
(3) Disconnect the connectors :
CNMF (White/7P) for fan motor
CN44 (White/4P) for thermistor (TH22/TH23)
CNP (Blue/3P) for drain pump
CN4F (White/4P) for float switch
CN01 (Black/5P) for earth and TB2
CNV (White/20P) for vane motor
CN81, CN42 (Red/8P,4P) for address board
CN2M (Blue/2P) for TB5
(4) Remove the 6 supports from indoor controller board.
(5) Remove the indoor controller board.
5. Removing the electrical box
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 3 screws from the electrical box cover.
(3) Disconnect the connectors. (Refer to procedure 4)
(4) Remove 4 electrical box fixing screws and remove 2 hooks.
(5) Pull the electrical box.
<Electrical parts in the electrical box>
Indoor controller board
Terminal block (TB2) (TB5)
OCH586
PHOTOS & ILLUSTRATIONS
Figure 1
Photo 1
MA remote
controller
terminal
cover
Terminal
cover fixing
screw
Photo 2
Room temp.
detection
thermistor
(TH21)
Electrical
box fixing
screws
Electrical box
31
Be careful when removing heavy parts.
Address board
cover fixing
screw
Electrical box cover
Electrical box cover
fixing screws
Bell mouth
Indoor controller Support for Indoor
board controller board
Filter
Address
board
Address
board cover
fixing screw
Turbo fan
Nut
Electrical
box fixing
screws