Plumbing · P-6BJYD

Water Heater with Recirculation

Elements

Roofs Floors / Slabs Bracing Drainage Connections / Plates

About this detail

A water heater connects to cold water supply, hot water supply, and hot water circulation piping with unions at equipment connections for future maintenance. A hot water circulation pump operates on the return line alongside check valves, ball valves, and a lubricated plug cock with a six-inch long dirt leg. An expansion tank ties into the cold water feed. A mixing valve regulates outlet temperature with a thermometer installed on the supply line. Seismic straps secure the tank at one-third points of its vertical dimension. A temperature and pressure relief valve routes through an outlet pipe to a floor sink. A drain valve with a threaded hose connection sits at the base of the tank above the finished floor, discharging to a floor sink. A concentric vertical vent kit extends through the roof.

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