Plumbing · P-EYHRS

Walk-In Box Condensate Drain

Materials

Elements

Walls Doors Stairs Floors / Slabs Insulation Drainage Anchors / Embeds Connections / Plates Roof / Floor Openings

About this detail

The condensate drain line connects to the evaporator coil drain pan and increases by one pipe size to a minimum of three-quarters of an inch. The pipe routes behind shelving inside the walk-in box, installed as high as possible, supported from the wall at maximum six-foot centers, placed a minimum of three-quarters of an inch out from the wall and six inches from the floor, and routed away from doorways. The line penetrates the side of the box through a drilled hole with a grommet or sleeve, sealed watertight with silicone around the penetration, and is anchored to the box exterior wall. Cleanouts are installed at the ends and turns of the pipe, though ninety-degree turns may omit cleanouts if two forty-five-degree elbows are used up to a maximum one hundred thirty-five-degree turn without a cleanout. A trap is provided at the bottom of the riser, flat against the wall, discharging over a floor drain with a code-compliant air gap.

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