239
Servicing
TURN OFF all the power switches.
2.12.3 Removing Solenoid Valve (SVA ,SVC,SVG,SVJ and SVS)
(1) Remove the front service cover according to the item 2.1 “Removing Front Service Cover”.
(2) <Heat Pump System>
Close the high / low pressure gas stop valve and the liquid stop valve.
<Heat Recovery System>
Close the high / low pressure gas stop valve, the low pressure gas stop valve and the liquid stop valve.
(3) Collect the refrigerant in the outdoor unit from the low pressure check joint and the high pressure check joint. Check that
the pressure will not increase at this time.
NOTE:
If the pressure increases, collect all the refrigerant in the refrigerant cycle.
(4) Remove the solenoid valve coils according to the item 2.12.2 “Removing Solenoid Valve Coil”.
(5) Remove the brazing at the position shown in the gure below.<Example : SVA and SVG>
NOTE:
1. During brazing work, cover the solenoid valves with wet cloth for cooling.
2. Take special care not to burn the connecting wiring and the piping insulation during brazing work.
(6) Set the solenoid valves in the reverse procedure.
Tool
Phillips Screwdriver, Charging Hose,
Burner, Wet Cloth, Pliers
● AVWT-72~96FFFH
Brazing Part
● AVWT-120~192FFFH
<Removing SVA>
<Removing SVG>
Brazing Part
SVA
<Removing SVA> <Removing SVG>
SVA
Brazing Part
SVG
Brazing Part
SVG 2
Brazing Part
Brazing Part
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