PACKAGE AIR CONDITIONER - Quiz

1) Why the water flow switch is bypassed to test the HP control switch in package AC?

Make the unit not to trip Raise the oil pressure more Stopping the unit immediately Lower the head pressure in compressor

2) Which parameter of heater element is increased in OLP due to hot compressor dome?

Voltage Resistance Capacitance Magnetic field

3) What is the effect on compressor motor if water pressure switch trips out in package AC?

Does not stop Stops working Does not start Motor burns out

4) What is the effect on adjusting the thermostat differential too close in package AC?

Unit does not start Normal cooling effect Unit runs continuously Unit starts and stops frequently

5) What is the reason for switching contacts get carbonised in package AC electrical wiring?

Humidity Quality is bad Loose connections Too tight connection contacts