Disassembly Procedure - Mitsubishi Electric PUZ-ZM200YKA2-ET Service Manual

DISASSEMBLY PROCEDURE

14
PUZ-ZM60VHA2(-ET/-ER)
: Indicates the visible parts in the photos/figures.
OPERATING PROCEDURE
1. Removing the service panel and top panel
(1) Remove 3 service panel fixing screws (5 × 12) and slide
the hook on the right downward to remove the service
panel.
(2) Remove 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) Remove 4 fan grille fixing screws (5 × 12) to detach the fan
grille. (See Photo 1)
(4) Remove a nut (for right handed screw of M6) to detach the
propeller. (See Photo 2)
(5) Disconnect the connector CNF1 on controller circuit board
in electrical parts box.
(6) Remove 4 fan motor fixing screws (5 × 25) to detach the
fan motor. (See Photo 3)
Note: Tighten the propeller fan with a torque of 5.7
3. Removing the electrical parts box
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the indoor/outdoor connecting wire from
terminal block.
(4) Disconnect 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)
• High pressure switch (63H)
• 4-way valve coil (21S4)
• Thermistor <Comp. surface> (TH33)
(6) Remove the terminal cover and disconnect the compressor
lead wire.
(7) Remove an electrical parts box fixing screw (4 × 10) and
detach the electrical parts box by pulling it upward.
The electrical parts box is fixed with 2 hooks on the left
and 1 hook on the right.
OCH771C
PUZ-ZM71VHA2(-ET/-ER)
Photo 1
Fan grille
Photo 2
Nut
0.3 N·m.
Front panel fixing screws
Photo 4
Terminal block
(TB1)
99
PHOTOS/FIGURES
Top panel fixing screws
Slide
Grille fixing Cover panel
screws
(Front)
Photo 3
Front panel
Propeller
Fan motor fixing screws
Electrical parts box
Controller circuit
board (C.B.)
Top panel
Side panel (R)
Service panel
Cover panel
(Rear)
Service panel
fixing screws
Fan
motor
(MF1)
Fan motor
fixing screws
Electrical parts
box fixing screws