Mitsubishi Electric Mr.SLIM PUHZ-RP35VHA2 Service Manual page 142

PUHZ-RP100, 125, 140VHA2
PUHZ-RP100VHA3
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, 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 from
terminal block.
(4) Remove all the following connectors from controller circuit board;
fan motor, LEV, thermistor <Outdoor pipe>,
thermistor <Discharge>, thermistor <Outdoor 2-phase pipe>,
thermistor <Outdoor>, high pressure switch, low pressure
switch, 4-way valve coil and bypass valve coil.
Then remove a screw (4 × 8) from the valve bad to remove
the lead wire.
Pull out the disconnected wire from the electrical parts box.
<Diagram symbol in the connector housing>
• Fan motor (CNF1, CNF2)
• LEV (LEV-A and LEV-B)
• Thermistor <Outdoor pipe> (TH3) (TH33)
• Thermistor <Discharge> (TH4)
• Thermistor <Outdoor 2-phase pipe, Outdoor> (TH6/7)
• High pressure switch (63H)
• 4-way valve coil (21S4)
• Bypass valve coil (SV2)
• Thermistor <Shell> (TH32)
only for RP100VHA3#1, RP125/140VHA2#2
(5) Remove the terminal cover and disconnect the
compressor lead wire.
(6) 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.
PUHZ-RP125, 140VHA2#2
(1)
PUHZ-RP100VHA3#1
142
PHOTOS & ILLUSTRATION
Figure 1
Top panel fixing screws
Grille
fixing
screws
Grille
fixing
screws
Photo 1
Front panel
Propeller
Nut
Photo 3
Controller circuit board
(C.B.)
Screw
Cover panel fixing screws
Top panel
Service panel
Slide
Fan grille
Service panel
fixing screws
Photo 2
Fan
Fan motor fixing screws motor
Fan motor fixing screws
Electrical
parts box
Electrical parts
box fixing screw
Terminal block
(TB1)
Valve bed
Compressor(MC)
Terminal cover
Cover panel
(Front)