HVAC Refrigerant Recovery and Handling

Question 1

What EPA regulation requires technicians to recover refrigerants before servicing equipment?

Accepted Answer

Section 608 of the Clean Air Act

Answer

Section 608 of the Clean Air Act prohibits the knowing venting of refrigerants and requires proper recovery before servicing stationary equipment.

Question 2

Which refrigerant is classified as an A1 safety group by ASHRAE?

Accepted Answer

R-410A

Answer

R-410A is classified as A1 by ASHRAE, meaning it is low toxicity (A) and nonflammable (1), making it relatively safe for use.

Question 3

What is the minimum recovery efficiency required for systems with more than 200 lbs of refrigerant per EPA Section 608 rules?

Accepted Answer

95%

Answer

EPA Section 608 requires 95% recovery efficiency for systems containing more than 200 lbs of refrigerant when using recovery equipment manufactured after November 15, 1993.

Question 4

What does the term 'refrigerant reclaim' mean?

Accepted Answer

Reprocessing refrigerant to original purity standards

Answer

Reclaim means reprocessing used refrigerant to the purity standards of ARI 700, essentially restoring it to virgin quality. This is distinct from recover (remove) or recycle (clean on-site).

Question 5

Which color identifies a recovery cylinder for R-410A refrigerant?

Accepted Answer

Pink (rose)

Answer

R-410A recovery cylinders are pink (rose) per the ARI/AHRI color-coding standard, helping technicians quickly identify the refrigerant type.

HVAC - Heating, Ventilation, and Air Conditioning Practice Test

HVAC - Heating, Ventilation, and Air Conditioning Practice Test

HVAC Refrigerant Recovery and Handling