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 609 of the Clean Air Act

Answer

ASHRAE Standard 15

Answer

OSHA 29 CFR 1910

Question 2

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

Accepted Answer

R-410A

Answer

R-32

Answer

R-290

Answer

R-600a

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

80%

Answer

90%

Answer

99%

Question 4

What does the term 'refrigerant reclaim' mean?

Accepted Answer

Reprocessing refrigerant to original purity standards

Answer

Removing refrigerant from equipment into a recovery cylinder

Answer

Reusing refrigerant without processing

Answer

Transferring refrigerant between cylinders

Question 5

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

Accepted Answer

Pink (rose)

Answer

White with gray collar

Answer

Light blue

Answer

Green

Question 6

What is the purpose of a refrigerant recovery machine's oil separator?

Accepted Answer

To separate compressor oil from recovered refrigerant

Answer

To filter moisture from the refrigerant

Answer

To remove non-condensables from the cylinder

Answer

To measure refrigerant purity

Question 7

What is the maximum fill level (by weight) for a recovery cylinder?

Accepted Answer

80%

Answer

70%

Answer

90%

Answer

100%

Question 8

Which document must accompany refrigerant shipments and identifies the type and amount of refrigerant?

Accepted Answer

Material Safety Data Sheet (MSDS/SDS)

Answer

Refrigerant transfer log

Answer

EPA technician certification card

Answer

Refrigerant purchase receipt

Question 9

What is 'push-pull' recovery method?

Accepted Answer

Recovering refrigerant in both liquid and vapor states simultaneously through separate hoses

Answer

Using two recovery machines simultaneously

Answer

Connecting liquid and vapor valves to speed recovery

Answer

Alternating between recovery and recharge cycles

Question 10

Under EPA Section 608, who must be certified to purchase refrigerants in containers larger than 2 lbs?

Accepted Answer

EPA Section 608 certified technicians only

Answer

Any licensed contractor

Answer

Both EPA 608 and state-licensed technicians

Answer

Only master HVAC technicians