EPA 608 - TYPE 3

Front

What type of appliance can a technician work on with a Type III Certification? Options: Convenience store refrigerators, Ice machines that fit under the counter, Low pressure appliances such as chillers, High pressure appliances such as heat pumps

Back

Low pressure appliances such as chillers

Front

Low pressure appliances operate...

Back

In a vacuum or below atmospheric pressure.

Front

Where does the purge unit take its suction from?

Back

The top of the condenser

Front

What is the pressure relief device on a low-pressure chiller called?

Back

A rupture disc

Front

What is the boiling point of R-123 refrigerant at atmospheric pressure?

Back

83 degrees F

Front

When charging a low pressure water chiller with R-123, charging begins with vapor, until what pressure is reached in the system?

Back

18.9 "hg

Front

If the condensing temperature of a low pressure chiller is 100 degrees F, that means the high side pressure is:

Back

6.1 psig

Front

What do CFC-11, HCFC-123, HFC-245fa, and HFO-1233zd have in common?

Back

They are low pressure refrigerants that have high boiling points.

Front

What do low pressure appliances require since they operate below atmospheric pressure?

Back

A purge unit

Front

What is the most effective way to leak test a charged low pressure chiller? Options: Use controlled hot water or electric heating blankets to increase system pressure, Use an open flame to speed up the system, Add nitrogen to the system, Use cold water and ice decrease system pressure

Back

Use controlled hot water or electric heating blankets to increase system pressure