Type I — Small AppliancesCâu 99 / 240
A vending machine repair company sends technicians to recover refrigerant from beverage coolers in the field. These sealed factory-charged coolers hold about 2 pounds of R-134a. Under Section 608 they are treated as:
a.Low-pressure appliances requiring 25 mm Hg absolute
b.Small appliances (80%/90% or 4 in Hg)
c.Type II high-pressure appliances requiring 10 inches Hg vacuum
d.Motor vehicle air conditioners under Section 609
Giải thích
Factory-sealed beverage vending machines and coolers holding five pounds or less of refrigerant are small appliances. Recovery must reach 80% (compressor off) or 90% (compressor on), or the alternative of 4 inches Hg vacuum. They are not Type II, Type III, or motor vehicle appliances.
Trích dẫn luật: 40 CFR §82.156Luyện 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 recovering from a small appliance using passive (system-dependent) equipment. To meet the required level, what must be achieved when the compressor is not operating?
- Which EPA technician certification allows a person to service and dispose of small appliances?
- A technician recharges a small window air conditioner after repair. Which practice helps ensure an accurate charge on a small sealed system?
- A technician connects recovery equipment to both the high and low sides of a small appliance during recovery. What is the main advantage of accessing both sides?
- Which appliance would NOT be recovered under the small-appliance rules?
- A technician recovering from a small appliance notices the recovery cylinder is not pulling below atmospheric pressure. Which factor most likely prevents reaching the 4 inches Hg vacuum alternative?
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