Disassembly Procedure; Removing The Service Panel And Top Panel; Removing The Fan Motor (Mf1, Mf2); Removing The Electrical Parts Box - Mitsubishi Electric PUMY-P200YKM Technical & Service Manual

11

DISASSEMBLY PROCEDURE

PUMY-P200YKM
OPERATING PROCEDURE

1. Removing the service panel and top panel

(1) Remove 4 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 4 fan grille fixing screws (5 × 12) to detach the
fan grille. (See Photo 1)
(3) Remove a nut (for right handed screw of M6) to detach
the propeller. (See Photo 2.)
(4) Disconnect the connectors, CNF1 and CNF2 on multi con-
troller board in electrical parts box.
(5) 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 connecting wire from terminal block.(See
Photo 5)
(4) Remove all the following connectors from outdoor multi controller
circuit board;
<Diagram symbol in the connector housing>
• Fan motor (CNF1, CNF2)
• Thermistor <HIC pipe> (TH2)
• Thermistor <Outdoor liquid pipe> (TH3)
• T hermistor <Compressor> (TH4)
• Thermistor <Suction pipe/Ambient, Outdoor>
(TH6/7)
• High pressure switch (63H)
• High pressure sensor (63HS)
• Low pressure sensor (63LS)
• 4-way valve (21S4)
• Bypass valve (SV1)
• Electronic expansion valve (CNLVA/CNLVB)
Pull out the disconnected wire from the electrical parts box.
(5) Remove the terminal cover and disconnect the compres-
sor lead wire.
OCH575
PUMY-P200YKM-BS
119
Note: Turn OFF the power supply before disassembly.
PHOTOS & ILLUSTRATION
Photo 1 Top panel fixing screws
Grille fixing
screws
Grille fixing
screws
Fan grille
Photo 2
Propeller Front panel
Nut
Photo 4
Front panel fixing
Electrical parts box
screws (5x12)
Front
panel
fixing
screws
(4x10)
Front panel
fixing screws (5x12)
Continue to the next page
Top panel
Service
panel
Slide
Service panel
fixing screws
Photo 3
Fan motor
fixing screws
Fan motor
Fan motor fixing
Clamp
screws
Noise filter
circuit board (NF)
Multi controller
board (MULTI.B)
Valve bed
fixing screws
Valve bed
Compressor
(MC)
Terminal cover
Cover panel
fixing screw
Cover panel
Cover panel
(Front)
fixing screws