Installation第 37 / 110 题
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
解析
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.
法律依据: 2022 California Mechanical Code (CMC)免费刷完整 110 道题库 — 无需注册。
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