Disassembly Procedure - Mitsubishi Electric Mr.Slim PLY-P18BA.TH Service Manual

11

DISASSEMBLY PROCEDURE

PLY-P18BA.TH
PLY-P36BA.TH
OPERATING PROCEDURE
1. Removing the air intake grille
(1) Slide the knob of air intake grille toward the arrow to open
the air intake grille.
(2) Remove drop prevention hook from the panel.
(3) Slide the shaft in the hinge and remove the air intake grille.
2. Removing the room temperature thermistor (TH1)
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the electrical box.
(3) Disconnect the connector CN20 (Red) from the indoor con-
troller board.
(4) Remove the room temperature thermistor and holder.
3. 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 (TH2, TH5)
CNP (Blue/ 3P) for drain pump
CN4F (White/ 4P) for float switch
CN01 (Black/ 5P) for earth and TB4
CNV (White/ 20P) for vane motor
CN22 (Blue/ 2P) for TB5
(4) Remove the 6 supports from indoor controller board.
(5) Remove the indoor controller board.
4. Removing the electrical box
(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. (Refer to procedure 3)
(4) Remove 2 electrical box fixing screws and remove 2 hooks.
(5) Pull the electrical box.
<Electrical parts in the electrical box>
Indoor controller board
Terminal block (TB4), (TB5)
OCH551A
PLY-P24BA.TH
PLY-P42BA.TH
PLY-P30BA.TH
PLY-P48BA.TH
PHOTOS & ILLUSTRATIONS
Figure 1
Knob
Air intake grille
Filter
Photo 1
Photo 2
Turbo fan
Electrical box
Fixing screw
40
Panel
Bell mouth fixing screw
Fixing screw
(Electrical box cover)
Bell mouth
Room temp.
thermistor (TH1)
Indoor controller
Electrical box
board (I.B)
Fixing screw