Plumbing · P-4R32F

Rooftop Unit Condensate Drain Trap and Piping Detail

Elements

Floors / Slabs Drainage Connections / Plates

About this detail

Rooftop unit condensate drain piping connects to a drain pan and routes through a P-trap equipped with cleanout tees and threaded plugs. The drain line slopes at a minimum of one-quarter inch per foot toward a floor sink, maintaining a separation of two pipe diameters above the receptor. An electronic trap primer line connects into the assembly from the fan room. Pipe sizing is one inch or matches the drain pan connection size, whichever is larger, with dimensions A, B, and C installed per manufacturer instructions.

Members view this detail in full resolution, download the CAD files (SVG, PDF), and can adapt it in the built-in CAD editor — export DXF, DWG, or PDF.

Start membership

Similar details