CSLB C-20 HVAC ContractorCooling and RefrigerationEasy
A technician completes a repair on a leaking residential split system. Under EPA Section 608 regulations, what must be done with the refrigerant remaining in the system before it is opened to the atmosphere for the repair?
- AIt may be released slowly outdoors as long as no people are nearby
- BIt may be recycled in place without using recovery equipment
- CIt must be recovered to the required level using EPA-certified recovery equipment before opening the system
- DIt may be vented directly since the system holds less than 5 pounds of refrigerant
Show answer & explanationAnswer & explanation
Correct answer: C. It must be recovered to the required level using EPA-certified recovery equipment before opening the system
EPA Section 608 prohibits intentional venting of refrigerant during maintenance, service, or disposal. Technicians must use certified recovery equipment to recover refrigerant to required evacuation levels before opening a system, regardless of the charge size.
Why the other options are wrong
- A. Slow release outdoors is still illegal venting under federal law.
- B. Recovery equipment must be used; simply opening the line without recovery constitutes illegal venting.
- D. There is no small-quantity exemption allowing venting; the prohibition applies to all ODS and substitute refrigerants.
EPA Venting Prohibition
Federal law under Section 608 of the Clean Air Act prohibits knowingly venting refrigerants to the atmosphere during service, maintenance, or disposal.
- Applies to all refrigerants, including substitutes like R-410A
- Recovery equipment must be EPA-certified
- Violations carry civil penalties
Memory trick: Never let it fly — recover before you pry.