How may the full charge of a 400-pound R-22 commercial system be set using an established range from the…

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

How may the full charge of a 400-pound R-22 commercial system be set using an established range from the best available data?

• AThe midpoint of the range is the full chargeCorrect answer
• BThe top of the range is the full charge
• CThe bottom of the range is the full charge
• DThe nameplate charge must always be used as the full charge

Why “The midpoint of the range is the full charge” is correct

Full charge may be set by the manufacturer's figure, by calculation, by actual measurements, or by an established range, in which case the midpoint of the range is the full charge. The owner must record the range, midpoint and how it was found.

Source: 40 CFR 82.152; 40 CFR 82.157(l)(1)

Why the other answers are wrong

• The top of the range is the full charge — The rule uses the midpoint, not the top.
• The bottom of the range is the full charge — The rule uses the midpoint, not the bottom.
• The nameplate charge must always be used as the full charge — The manufacturer's figure is only one of four allowed methods.

Practice more of this

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