Condensate pipe size
Condensate pipe size
(OP)
I am looking for a pipe size table for ahu condensate to size the pipe connection including the branch and main pipe. Any?
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RE: Condensate pipe size
RE: Condensate pipe size
RE: Condensate pipe size
RE: Condensate pipe size
Up to 20 tons -> 3/4"
21-40 tons -> 1"
41-90 tons -> 1-1/4"
91-125 tons -> 1-1/2"
126-250 tons -> 2"
Over 250 tons -> Sizing as approved by AHJ
RE: Condensate pipe size
The pitch of these drain lines is also an important part of the overall installation. It is generally recommended that the horizontal section of pipe have a pitch of at least 4 inches per linear foot. This will be adequate to drain the water away from the evaporator and prevent it from draining too slowly or standing in the line.
Drain lines should be run to an open drain and never be connected directly to a sewer system. This will prevent sewage from backing up into the evaporator in the event the sewage system backs up.