Core (Universal)Question 16 of 240
A technician who services rooftop package units charged with R-410A (a high-pressure refrigerant) needs which certification type at minimum?
a.Type I
b.Type III
c.No certification, because HFCs have zero ODP
d.Type II
Explanation
Type II certification is required to service or dispose of high-pressure and very high-pressure appliances, which includes R-410A rooftop units. Type I covers only small appliances, Type III covers low-pressure systems, and certification is required for HFCs even though they have zero ODP. A Universal certification would also qualify because it includes Type II.
Law Reference: 40 CFR §82.161Practice all 240 questions free — no signup required.
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