A technician who services rooftop package units charged with R-410A (a high-pressure refrigerant) needs which certification type at minimum?
a.No certification, because HFCs have zero ODP
b.Type II
c.Type I
d.Type III
Giải thích
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.
Trích dẫn luật: 40 CFR §82.161Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
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Câu hỏi liên quan cùng chủ đề
- A technician is about to replace a compressor on a residential R-410A split system. Before opening the sealed system, the technician must:
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- A technician wants a single certification that allows work on small appliances, high-pressure systems, and low-pressure systems. Which does the technician need?
- How long does an EPA Section 608 technician certification remain valid?
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