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Electrical wiring & Application control
Wiring hole
Remote controller wiring
Application control
Set capacity (SW05)
12
Refrigerant piping
Vacuum evacuation
Evacuate from the outdoor cut-off valve with a vacuum pump.
Never use encapsulated refrigerant in the outdoor unit for evacuation.
Open all the valves
Open all the valves of the outdoor unit.
Check the gas leaking
Check the joints and valve caps with a leakage detector or with soapsuds for gas leaks.
Heat insulation
All the liquid and gas tubes must have separate isolation.
During cooling run, temperature at both the liquid side and the gas side is low. To prevent
dew forming, heat isolation must be made.
Materials used for the tube isolation at the gas side must withstand 120
The joints should be treated for heat isolation.
With cut edge up
Field tubing side
Indoor unit
Auxiliary isolated tube
9
temperature.
(Attached diagram)
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