Trap in condensate drain

Insulation · Ventilation Systems · printed page 256 (PDF page 257)

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Book index entries

Condensate – Drain Trap for HRV Trap in Condensate Drain Trap in Condensate Drain for HRV

Text in the illustration

outside
inside
cool fresh air
supply
exhaust
cooled exhaust air
heat recovery ventilator
heat exchanger
condensate
pan
condensate drain (1/2" typ.)
the trap in a condensate drain is often a simple 2" loop in the tubing
floor drain
condensate line
plumbing stack
air gap
laundry tub

Generated explanation

The illustration shows a heat recovery ventilator with a heat exchanger, two fans, and supply and exhaust ducts passing through an exterior wall. A condensate pan beneath the unit drains through tubing labeled as typically 1/2 inch, with a simple 2-inch loop forming a trap. A green check marks discharge to a floor drain. A second approved arrangement shows the condensate line discharging into a laundry tub with an air gap. A crossed-out inset identifies a direct connection of the condensate line to a plumbing stack as improper.

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