Mitsubishi Electric Mr.SERVICE PUHZ-HRP71VHA Service Manual page 112

PUHZ-HRP100YHA
OPERATING PROCEDURE
1. Removing the service panel and top panel
(1) Remove 3 service panel fixing screws (5 × 10) and slide
the hook on the right downward to remove the service
panel.
(2) Remove screws (3 for front, 3 for rear/5 × 10) of the top
panel and remove it.
2. Removing the fan motor (MF1, MF2)
(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Remove 5 fan grille fixing screws (5 × 10) 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 connectors, CNF1 and CNF2 on controller
circuit board in electrical parts box.
(6) Remove 4 fan motor fixing screws (5 × 25) 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 and power
supply wire from terminal block.
(4) Disconnect the connectors on the controller circuit board.
(5) Remove the terminal cover and disconnect the compressor
lead wire.
(6) 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.
PUHZ-HRP125YHA PUHZ-HRP100YHA2(R1)
PHOTOS & ILLUSTRATION
Figure 1 (PUHZ-HRP100/125YHA)
Grille
fixing
screws
Grille
fixing
screws
Photo 1
Propeller
Nut
Photo 3
Noise filter circuit
board (N.F.)
Terminal block (TB1)
112
PUHZ-HRP125YHA2(R1)
Top panel fixing screws
Slide
Photo 2
Front panel
Fan motor fixing screws
Fan motor fixing screws
Controller circuit
board (C.B.) Electrical parts box
Terminal block (TB2)
Top panel
Service panel
Fan grille
Service panel
fixing screws
Fan
motor
Electrical
parts box
fixing
screw