What must a small appliance charged with a non-exempt refrigerant, such as R-134a, have before it may be…
Recovery requirements · EPA 608 Type I. The correct answer, and the reasoning behind it.
The small-appliance definition and the recovery levels required.
The question
What must a small appliance charged with a non-exempt refrigerant, such as R-134a, have before it may be sold, so refrigerant can be removed at service and disposal?
- A process stubCorrect answer
- Service valves on both the high and low sides
- A king valve at the receiver outlet
- A permanently attached pump-out unit
Why “A process stub” is correct
Section 82.154(e)(2) bars the sale of a small appliance unless it has a process stub to make refrigerant removal possible; only appliances holding just exempt refrigerants, such as R-600a in a household refrigerator, are excused. A process stub is a length of tubing that gives access to the refrigerant and can be resealed after service.
Source: 40 CFR 82.154(e); 40 CFR 82.152
Why the other answers are wrong
- Service valves on both the high and low sides — Small appliances are hermetically sealed and are not required to have service valves.
- A king valve at the receiver outlet — King valves are found on larger systems with receivers, not on small appliances.
- A permanently attached pump-out unit — Pump-out units are a feature of some larger systems, not a small-appliance requirement.
Practice more of this
More EPA 608 Type I practice questions, or see every EPA 608 practice test.
Unofficial, not affiliated with the EPA or any EPA-approved certifying organization. Questions are original practice written from public EPA material, not real exam questions.