Disassembly Procedure - Mitsubishi city multi PKFY-08NAMU-A Technical & Service Manual

10

DISASSEMBLY PROCEDURE

PLFY-20NAMU-A
OPERATING PROCEDURE
1. Removing the air intake grille
(1) Slide the knob of air intake grille to the direction of the
arrow 1 to open the air intake grille.
(2) Remove the string hook from the panel to prevent the grille
from dropping.
(3) Slide the shaft in the hinge to the direction of the arrow2
and remove the air intake grille.
2. Removing the room temperature thermistor
(1) Remove the screw( 1) in the room temperature thermistor
holder to remove the holder and the room temperature
thermistor.
(2) Remove the 1 screw from the bell mouth, and unscrew the
another 2 screws (fixed to the oval hole which has different
diameter) to remove the bell mouth.
(3) Hold the holder claw, and remove the room temperature
thermistor and holder.
(4) Disconnect the connector (red) in the indoor control board.
3. Removing the electrical box
(1) Disconnect the lead wire of the vane motor from the clamp,
and disconnect the white connector (10P).
(2) Remove the room temperature thermistor with the holder.
(3) Remove the bell mouth.(See photo 1)
(4) Disconnect the relay connector in the electrical box.
Red (3P) for fan motor power supply
White (2P) for pipe temperature detection / liquid thermistor
Black (2P) for pipe temperature detection / gas thermistor
Blue (2P) for drain pump
White (3P) for drain sensor
(5) Remove the 3 screws from the electrical box, loosen
another 2 screws to remove the box.
<Electrical parts in the electrical box>
Indoor controller board
power supply board
Terminal block (Power supply)
Terminal block (Transmission)
Terminal block (MA remote controller)
Capacitor
Address board
PHOTOS&ILLUSTRATIONS
Figure 1
Air intake grille
Air intake grille knob
Photo 1
Bell mouth
Photo 2
Electrical
box
Power
supply
board
Address
board
Connector
OC290-28
Be careful on removing heavy parts.
Grille
Nut
Turbo fan
Indoor controller board Connector
Screws
Room
temperature
thermistor
Air intake grille
Capacitor
Terminal
block