Disassembly Procedure - Mitsubishi Electric PUMY-P200YKM2 Technical & Service Manual

11

DISASSEMBLY PROCEDURE

PUMY-P200YKM2
PUMY-P200YKM2R1
: Indicates the visible parts in the photos/fi gures.
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 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
controller board in electrical parts box.
(5) Remove 4 fan motor fixing screws (5 × 20) to detach the
fan motor. (See Photo 3)
Note: Tighten the propeller fan with a torque of 5.7 ±
0.3N·m [4.2 ± 0.2 lbf·ft].
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)
• Thermistor <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)
• Linear 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.
OCH675D
PUMY-P200YKM2-BS
PUMY-P200YKM2R1-BS
Note: Turn OFF the power supply before disassembly.
PHOTOS/FIGURES
Top panel fi xing screws Top panel fi xing screws Top panel fi xing screws Top panel fi xing screws Top panel fi xing screws
Photo 1
Grille fi xing
screws
Grille fi xing
screws
Photo 2
Front panel
Propeller Propeller
Nut
Photo 4
Front panel fi xing
screws (5x12)
Front panel
fi xing screws
(4x10)
Front panel
fi xing screws (5x12)
128
Top panel Top panel
Service
panel
Slide
Service panel
fi xing screws
Fan grille
Photo 3
Fan motor fi xing screws
Fan motor fi xing screws
Electrical Multi controller
parts box board (MULTI.B)
Noise fi lter Noise fi lter
circuit board
(NF)
Valve bed
fi xing screws
Valve bed
Compressor
(MC)
Cover panel
(Rear)
Terminal cover Terminal cover
Cover panel
Cover panel
(Front)
fi xing screws
Continue to the next page.
Fan
motor