Mitsubishi Electric Mr Slim PUHZ-RP50VHA4 Service Manual page 141

PUHZ-RP100VKA
OPERATING PROCEDURE
1. Removing the service panel and top panel
(1) Remove the service panel fixing screws (3 for front, 5 × 12)
and slide the hook on the right downward to remove the
service panel.
(2) Remove the top panel fixing screws (3 for front, 3 for rear,
5 × 12) to detach the top panel.
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 the fan grille fixing screws (4 for front, 5 × 12) to
detach the fan grille. (Top and bottom) (See Photo 1)
(4) Remove a nut (for right handed screw of M6) to detach the
propeller. (Top and bottom) (See Photo 2)
(5) Disconnect the connectors, CNF1, CNF2 on controller
circuit board in electrical parts box.
(6) Remove the fan motor fixing screws (4 for front, 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 (RP140) on the controller circuit board.
<Symbols on the board>
• CNF1, CNF2 : Fan motor
• LEV-A, LEV-B, LEV-C (LEV-C: only for RP140) : LEV
(5) Disconnect the pipe-side connections of the following parts.
• Thermistor <Liquid>(TH3)
• Thermistor <Discharge>(TH4)
• Thermistor <Outdoor 2-phase pipe>(TH6)
• Thermistor <Ambient>(TH7)
• Thermistor <Comp. surface> (TH32)
• Thermistor <Ref. check>(TH33)
• High pressure switch (63H)
• 4-way valve coil (21S4)
(6) Disconnect the lead wires from 2 clamps on the separator.
(7) Remove the terminal cover and disconnect the compressor
lead wire.
(8) 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.
OCH451D
PUHZ-RP125VKA
141
PUHZ-RP140VKA
PHOTOS & ILLUSTRATION
Photo 1
Top panel fixing screws
Grille
fixing
screws
Grille
fixing
screws
Photo 2
Front panel
Propeller
Nut
Photo 4
Top panel
Service panel
Side panel (R)
Slide
Service panel
fixing screws
Cover panel
fixing screws
Photo 3
Fan motor
fixing screws
Fan motor
Fan motor
fixing screws
Electrical
parts box
Electrical parts
box fixing screw