PACKAGE AIR CONDITIONER - Quiz

1) Which control terminals are shorted before pump down operation in package AC?

Selector switch H.P cut-out switch L.P cut-out switch Thermostat switch

2) Which valve is kept closed to check the function of low pressure switch?

Reed valve Suction valve Liquid line valve Discharge service valve

3) What is the advantage of water pressure cut out switch in package AC?

Raise condensation Improve evaporation Protect the compressor Increase refrigerant flow

4) Which safety control is manually reset after rectifying the faults in packages AC?

LP HP OLP OILP

5) Which safety switch deactivates the compressor motor circuit if suction pressure falls below the safe limit in package AC?

Selector switch Low pressure switch High pressure switch Dual pressure switch