Compressor Safety Components

Question 1

____ ____ refers to when liquid refrigerant enters the compressor on the suction side.

Answer 1

Liquid slugging

Question 2

Higher than normal pressures in the suction line can occur after a ____ cycle or if evaporator ____ rises too high.

Answer 2

defrost

temperature

Question 3

A ____ is a valve with an adjustable pressure setting that prevents unsafe crankcase pressures.

Answer 3

crankcase pressure regulator (CPR)

Question 4

A pressure-responsive, normally closed switch that opens on the discharge line is a ____.

Answer 4

discharge line pressure switch

Question 5

Gay-Lussac’s Law states that in a fixed volume (like the high side of a system), pressure and ____.

Answer 5

temperature rise and fall together

Question 6

A ____ senses discharge line temperature and opens on a rise in temperature to turn off a system.

Answer 6

discharge line thermostat

Question 7

____ are designed to prevent liquid refrigerant from entering the compressor.

Answer 7

Accumulators

Question 8

___ is a system component that removes oil form high-pressure refrigerant vapor as both refrigerant and oil leave the compressor.

Answer 8

Oil separator

Question 9

A oil control device that regulates the level of oil within a compressor using a float mechanism is a ____.

Answer 9

oil level regulator