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Mitsubishi Electric Mr.SLIM PUZ-ZM35VKA-ET Service Manual page 104

Split-type, heat pump air conditioners

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PUZ-ZM60VHA(-ET/-ER)
PUZ-ZM71VHAR1(-ET)
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 × 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) 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)
• Thermistor <Heat sink> (CN3)
• 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.
OCH653C
PUZ-ZM71VHA(-ET/-ER)
104
PHOTOS/FIGURES
Photo 1
Top panel fixing screws
Fan grille
Grille fixing
Cover panel
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
Slide
Side panel (R)
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

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