Does the Part 84 leak repair rule apply?

Leak repair requirements · EPA 608 Type II. The correct answer, and the reasoning behind it.

Leak-rate thresholds, repair deadlines, extensions and records.

The question

A light commercial air conditioner holds 20 pounds of R-410A and is part of the residential and light commercial air conditioning and heat pump subsector. Does the Part 84 leak repair rule apply?

• AYes, because it holds more than 15 pounds
• BYes, at the 10 percent comfort cooling rate
• CNo, because it holds less than 50 pounds
• DNo, that subsector is excludedCorrect answer

Why “No, that subsector is excluded” is correct

Part 84 leak repair covers HFC appliances of 15 pounds or more, but it expressly does not apply to appliances in the residential and light commercial air conditioning and heat pump subsector (40 CFR 84.106(a)(3)(ii)). The venting prohibition still applies.

Source: 40 CFR 84.106(a)

Why the other answers are wrong

• Yes, because it holds more than 15 pounds — The 15-pound threshold does not override the subsector exclusion.
• Yes, at the 10 percent comfort cooling rate — The comfort cooling rate does not apply to an excluded subsector.
• No, because it holds less than 50 pounds — 50 pounds is the Part 82 threshold, not the reason here.

Practice more of this

More EPA 608 Type II practice questions, or see every EPA 608 practice test.