120
OPERATING PROCEDURE PHOTOS
10. 4-way valve disassembly procedures:
(1) Remove the side panel (Refer to 1).
(2) Remove the top panel (Refer to 1).
(3) Remove the electrical parts box (Refer to 4 or 5).
(4) Recover gas from the refrigerant circuit.
(5) Remove the 4-way coil (21S4) w1 (Refer to 7).
(6) Remove the mounting screws from the gas side ball
valve (2 pcs : 5o16).
(7) Remove the field piping from the outdoor unit (gas side).
(8) Remove the welded portion.
1 Upper and lower heat exchanger inlet (T connector).
2 Accumulator inlet (T connector)
3 4-way valve inlet
(9) Remove 4-way valve.
✻
Do not expose 4-way valve to above 120°C.
Only PUMY-125VMA model
w1 4-way valve (21S4)
Photo 11
Photo 12
Photo 13
11. Solenoid valve disassembly procedures:
(1) Remove the side panel (Refer to 1).
(2) Remove the electrical parts box (Refer to 4 or 5).
(3) Recover gas from the refrigerant circuit.
(4) Remove the solenoid coil (SV1) w1 (Refer to 7).
(5) Remove the welded portions of the solenoid valve.
(take care excessive heating)
Only PUMY-125VMA model
w1 Solenoid valve (SV)
12. Expansion valve disassembly procedures:
(1) Remove the side panel (Refer to 1).
(2) Remove the electrical parts box (Refer to 4 or 5).
(3) Recover gas from the refrigerant circuit.
(4) Remove welded portions of expansion valve.
(take care excessive heating)
✻
To remove welded portion, cut the band holding it and
remove the rubber tube.
Pipe of heat exchanger inlet (T connector)
Accumulator inlet
(T connector)
Fixing screws
Gas side ball valve
4-way valve inlet
4-way valve
Solenoid coil W1
Welding parts
Expansion valve
Band
Rubber tube
Welding parts
Oil separator
OC183E--4.qxp 10.5.6 0:54 PM Page 120
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