Removing The Service Panel And Top Panel; Removing The Fan Motor (Mf1) - Mitsubishi Electric PUZ-ZM35VKA Service Manual

PUZ-ZM60VHA
OPERATING PROCEDURE

1. Removing the service panel and top panel

(1) R emove 3 service panel fixing screws (5 × 12) and slide
the hook on the right downward to remove the service
panel.
(2) R emove screws (3 for front, 3 for rear/5 × 12) of the top
panel and remove it.

2. Removing the fan motor (MF1)

(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) R emove 4 fan grille fixing screws (5 × 12) to detach the fan
grille. (See Photo 1)
(4) R emove a nut (for right handed screw of M6) to detach the
propeller. (See Photo 2)
(5) D isconnect the connector CNF1 on controller circuit board
in electrical parts box.
(6) R emove 4 fan motor fixing screws (5 × 20) to detach the
fan motor. (See Photo 3)
Note: Tighten the propeller fan with a torque of 5.7 i 0.3 N·m.
3. Removing the electrical parts box
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) D isconnect the indoor/outdoor connecting wire from
terminal block.
(4) D isconnect the connector CNF1, LEV-A and LEV-B on the
controller circuit board.
<Symbols on the board>
• CNF1 : Fan motor
• LEV-A, LEV-B : LEV
(5) Disconnect the pipe-side connections of the following parts.
• Thermistor <Liquid> (TH3)
• Thermistor <Discharge> (TH4)
• Thermistor <2-phase pipe, Ambient> (TH7/6)
• Thermistor <Heat sink> (CN3)
• High pressure switch (63H)
• 4-way valve coil (21S4)
• Thermistor <Comp. surface> (TH33)
(6) R emove the terminal cover and disconnect the compressor
lead wire.
(7) R emove an electrical parts box fixing screw (4 × 10) and
detach the electrical parts box by pulling it upward.
T he electrical parts box is fixed with 2 hooks on the left
and 1 hook on the right.
OCH653
PUZ-ZM71VHA
107
PHOTOS
Photo 1
Top panel fixing screws
Fan grille
Cover panel
Grille fixing
screws
(Front)
Photo 2 Front panel
Propeller
Nut
Front panel fixing screws
Photo 4
Electrical parts box
Terminal block Controller circuit
board (C.B.)
(TB1)
Top panel
Side panel (R)
Slide
Service panel
Cover panel
(Rear)
Service panel
fixing screws
Photo 3
Fan
motor
Fan motor fixing screws
(MF1)
Fan motor
fixing screws
Electrical parts
box fixing screws