A recovery unit relies on the small appliance's own working compressor to push refrigerant into a recovery cylinder. What type of recovery equipment is this?

a.A micron-rated vacuum pump
b.System-dependent (passive) recovery equipment
c.Self-contained (active) recovery equipment
d.A recycling machine with an internal distillation stage

Giải thích

System-dependent, or passive, recovery equipment has no compressor or pump of its own and relies on the appliance's compressor or its internal pressure to move refrigerant out. Self-contained (active) equipment has its own compressor and does not need the appliance to run. Passive equipment may only be used on small appliances.

Trích dẫn luật: 40 CFR §82.152

Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.

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