InstallationCâu 37 / 110
Gas piping for a furnace must be sized primarily to do what?
a.Match the refrigerant line size
b.Deliver adequate gas volume at the required pressure to all connected appliances
c.Reduce electrical load
d.Support the condensate drain
Giải thích
Gas pipe is sized from tables using the appliance input in BTU/hr, the pipe length, and the allowable pressure drop so every appliance receives adequate fuel. Undersized piping starves burners and causes poor combustion. The CMC provides sizing tables and requirements.
Trích dẫn luật: 2022 California Mechanical Code (CMC)Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
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