Disassembly Procedure - Mitsubishi Electric PUHZ-P100VHA2 Service Manual

15

DISASSEMBLY PROCEDURE

PUHZ-P100VHA2.UK
PUHZ-P100VHA3R2.UK
PUHZ-P100YHA.UK
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 Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Remove 5 fan grille fixing screws (5 × 12) to detach the fan
grille. (See Figure 1)
(4) Remove a nut (for right handed screw of M6) to detach the
propeller. (See Photo 1)
(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 2)
3. Removing the electrical parts box
(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Disconnect the indoor/outdoor connecting wire from
terminal block.
(4) Disconnect the connector CNF1 and LEV-A on the
controller circuit board.
<Symbols on the board>
• CNF1 : Fan motor
• LEV-A : LEV
(5) Disconnect the pipe-side connections of the following parts.
• Thermistor <Outdoor Pipe>, <Liquid> (TH3)
• Thermistor <Discharge> (TH4) (VHA2, VHA3(R1))
• Thermistor <Comp.Surface> (TH32) (VHA3R2, VHA4,
YHA, YHAR1, YHA2)
• Thermistor <Outdoor 2-Phase Pipe, Outdoor>,
<2-Phase Pipe, Ambient> (TH6/7)
• High pressure switch (63H)
• 4-way valve (21S4)
(6) Remove the terminal cover and disconnect the compressor
lead wire.
(7) Remove 2 electrical parts box fixing screws (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.
OCH415F
PUHZ-P100VHA3.UK
PUHZ-P100VHA4.UK
PUHZ-P100YHAR1.UK
Fan grille
Nut
127
PUHZ-P100VHA3R1.UK
PUHZ-P100YHA2.UK
PHOTOS & ILLUSTRATION
Figure 1
Top panel fixing screws
Grill fixing screws
Photo 1
Front panel
Propeller
Front panel fixing screws
Photo 3 (PUHZ-P100V)
Terminal block (TB1)
Top panel
Slide
Service panel
Service panel
fixing screws
Photo 2
Fan
motor
Fan motor fixing screws
(MF1)
Fan motor
fixing screws
Controller circuit
board (C.B.)
Electrical parts box
fixing screws
Continued to the next page.