Mitsubishi Electric PUHZ-ZRP35VKA Service Manual page 141

PUHZ-ZRP100YKA
PUHZ-ZRP100YKAR1
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, MF2)
(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 connectors, CNF1, CNF2 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)
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, CNF2, LEV-A and LEV-B,
LEV-C (140 only) on the controller circuit board.
<Symbols on the board>
• CNF1, CNF2 : Fan motor
• LEV-A, LEV-B, LEV-C : LEV
(5) Disconnect the pipe-side connections of the following parts.
• Thermistor <Outdoor pipe>(TH3) (TH33)
• Thermistor <Discharge>(TH4)
• Thermistor <Outdoor 2-phase pipe, Outdoor>(TH7/6)
• High pressure switch (63H)
• 4-way valve coil (21S4)
• Thermistor <Comp. surface> (TH32)
(6) Disconnect the lead wires from the reactors.
OCH527B
PUHZ-ZRP125YKA
PUHZ-ZRP125YKAR1
Photo 1
Grille fixing
screws
Grille fixing
screws
Photo 2
Photo 4
141
PUHZ-ZRP140YKA
PUHZ-ZRP140YKAR1
PHOTOS
Top panel fixing screws
Front panel
Propeller
Nut
Noise filter circuit
board (N.F.)
Terminal cover
Reactors
Top panel
Service panel
Slide
Service panel
fixing screws
Cover panel
fixing screws
Photo 3
Fan motor
fixing screws
Fan motor
Fan motor
fixing screws
Electrical
parts box
Controller
circuit
board (C.B.)
Terminal
block (TB1)
Terminal
block (TB2)
Valve bed
Compressor
(MC)
Continued to the next page.