Type I — Small AppliancesCâu 104 / 240
Which of these is a defining physical feature of a small appliance that distinguishes it from field-installed equipment?
a.It contains between 5 and 50 pounds of refrigerant
b.It must be charged by the installer on site
c.Its refrigerant circuit is hermetically sealed and charged at the factory
d.It always uses a thermostatic expansion valve
Giải thích
A small appliance is hermetically sealed and charged at the factory, unlike field-assembled split systems that are charged during installation. This factory-sealed construction, combined with a charge of five pounds or less, is what places it in the small-appliance category. Metering device type and larger charge sizes are not part of the definition.
Trích dẫn luật: 40 CFR §82.152Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- 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?
- A landlord asks a Type I technician to simply cut the lines and toss out several old mini-fridges. What is the technician's correct response?
- A technician finishes recovering a refrigerator and disconnects the equipment. To verify that recovery met the requirement using the vacuum method, what should the gauge read?
- A technician wants to recover refrigerant faster from a small appliance in cold weather when system pressure is very low. Which safe method raises pressure to aid recovery?
- When a small appliance's compressor is operable, why does the rule require a higher recovery level (90%) than when it is inoperable (80%)?
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