82
OPERATING PROCEDURE
PHOTOS
5. Electrical parts box disassembly procedures:
[PUMY-P125YMA, PUMY-P125YMA
1
]
(1)
Remove the side panel (See photo 1)
(2)
Remove the top panel (See photo 1)
(3)
Disconnect the following wires from the
multi controller board.
• Thermistor (Discharge temperature detection):TH1
• Thermistor (Low pressure saturated temperature
detection):TH2
• Thermistor (Pipe temperature defection • judging
defrost):TH5
• Thermistor (Outdoor temperature detection): TH6
• High-pressure sensor (Discharge pressure
detection): 63HS
• Expansion valve: SLEV
(4) Remove the board plate.
(5) Disconnect the following wires from the power supply
board:
• Fan motor: MF1 and MF2
• Solenoid valve: SV1
• 4-way valve: 21S4
Pull wires out of the electrical box after disconnecting them.
(6) After removing the connector cover, remove the compressor
wire and the inner thermostat terminal.
(7) Remove the electrical box screw (1 pc : 4
o
10).
(8) Remove the valve bed screws from the right side of
the valve bed (2 pcs : 4
o
10).
(9) Remove the electrical box after slightly loosening the
rear panel. The electrical box is held by two claws on
the left and one on the right.
6. Solenoid valve coil and 4-way valve coil
disassembly procedures:
(1) Remove the side panel (See photo 1).
(2) Remove the top panel (See photo 1).
(3) Remove the electrical parts box (See photo 5 or 6).
(4) Remove coil screws (Solenoid valve: 1 pc M4x6;
4-way valve: 1 pc M5x6), and remove the solenoid
valve (SV1) and 4-way valve (21S4) wires from the
power supply board.
Photo 6
PUMY-P125YMA, PUMY-P125YMA
1
Photo 7
Power supply board
Electric
parts box
screw
Rear panel
Electrical
parts box
Multi controller
board
Valve bed
screws
Connector cover
Valve bed
4-way valve
4-way
valve coil
Solenoid valve
coil
Board plate
OC272A--3.qxp 03.9.4 11:10 AM Page 82
Summary of Contents for PUMY-P125VMA
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