Under 40 CFR 82.152, an appliance charged with R-407C is classified as:
Refrigeration · EPA 608 Type II. The correct answer, and the reasoning behind it.
Identifying refrigerants, system components and the state of refrigerant in each.
The question
Under 40 CFR 82.152, an appliance charged with R-407C is classified as:
- low-pressure
- medium-pressure
- very high-pressure
- high-pressureCorrect answer
Why “high-pressure” is correct
R-407C is one of EPA's listed examples of a high-pressure refrigerant, with a saturation pressure between 170 and 355 psia at 104 °F. R-22, R-407A, R-410A and R-502 are the others listed.
Source: 40 CFR 82.152
Why the other answers are wrong
- low-pressure — Low-pressure refrigerants include R-11 and R-123.
- medium-pressure — Medium-pressure refrigerants include R-134a and R-12.
- very high-pressure — Very high-pressure refrigerants include R-23 and R-508B.
Practice more of this
More EPA 608 Type II 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.