Planning & EstimatingQuestion 270 of 360
On a set of plumbing drawings, a supply line labeled with the abbreviation "CW" represents which system?
a.Condensate waste
b.Chilled water return
c.Cold water supply
d.Combustion air
Explanation
"CW" is the standard drawing abbreviation for cold water supply piping; "HW" is used for hot water. Reading these labels correctly is essential to route the right pipe during rough-in. Legends on the plan's first sheet confirm the abbreviations used by that designer.
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