HVAC EPA 608 Refrigerant Certification 2

Question 1

Under EPA 608, what is the maximum allowable annual leak rate for a commercial refrigeration system containing more than 50 pounds of refrigerant?

Accepted Answer

35%

Answer

EPA 608 sets a 35% annual leak rate threshold for commercial refrigeration systems holding more than 50 pounds of refrigerant before mandatory repair is required.

Question 2

Which refrigerant is classified as an A2L (mildly flammable) by ASHRAE Standard 34?

Accepted Answer

R-32

Answer

R-32 is classified as A2L because it has low toxicity (A) and mild flammability (2L) per ASHRAE 34 safety classifications.

Question 3

What does the term 'de minimis' refer to in the context of EPA 608 refrigerant regulations?

Accepted Answer

A small release allowable during normal servicing

Answer

De minimis releases are small, unavoidable refrigerant releases that occur during normal servicing and are not prohibited under EPA 608.

Question 4

A technician must repair a leak in a comfort cooling system with more than 50 lbs of refrigerant within how many days of discovery?

Accepted Answer

30 days

Answer

EPA 608 requires repairs to comfort cooling systems exceeding 50 lbs of refrigerant to be completed within 30 days of discovering the leak.

Question 5

Which type of recovery equipment must be used when the refrigerant system's compressor is operational?

Accepted Answer

System-dependent (passive) recovery equipment

Answer

System-dependent recovery equipment relies on the system's own compressor to push refrigerant into the recovery cylinder and requires the system compressor to be working.

HVAC Practice Test

HVAC Practice Test

HVAC EPA 608 Refrigerant Certification 2