HVAC Refrigerant Recovery and Handling 4

Question 1

What is 'refrigerant banking' in the context of EPA Section 608 compliance?

Accepted Answer

Holding recovered refrigerant in approved cylinders for later use or sale

Answer

Refrigerant banking refers to storing recovered refrigerant in approved cylinders—either for reuse in the same system or for sending to a reclaimer.

Question 2

A system using R-22 has been retrofitted with a drop-in replacement. When recovering refrigerant from this system, what special consideration applies?

Accepted Answer

The replacement refrigerant must be recovered into a separate, clearly labeled cylinder

Answer

Retrofit refrigerants must be recovered separately from R-22 to prevent contamination and ensure each can be properly reclaimed or reused.

Question 3

What is the function of a 'passive' or 'system-dependent' recovery device?

Accepted Answer

It uses the system's own compressor to push refrigerant into the recovery cylinder

Answer

A passive (system-dependent) recovery device uses the system's own compressor to assist moving refrigerant into the recovery cylinder, requiring no separate recovery machine motor.

Question 4

What is the EPA-required maximum allowable standing vacuum level before a technician can open a system for service on appliances with charges between 200 lbs and 2,000 lbs of HCFC refrigerant?

Accepted Answer

4 inches Hg vacuum

Answer

For systems with HCFC charges between 200 lbs and 2,000 lbs, EPA requires recovery to 4 inches Hg vacuum before the system can be opened.

Question 5

Which of the following best describes a 'critical leak' as defined by updated EPA Section 608 regulations for industrial process refrigeration?

Accepted Answer

A leak exceeding 30% of charge per year

Answer

For industrial process refrigeration, the EPA defines a critical leak as one exceeding 30% of total refrigerant charge per year.

HVAC - Heating, Ventilation, and Air Conditioning Practice Test

HVAC - Heating, Ventilation, and Air Conditioning Practice Test

HVAC Refrigerant Recovery and Handling 4