Plumbing · P-K4827

Electric Water Heater Installation Plumbing Detail

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An electric water heater is mounted on a four-inch concrete pad equipped with a drip pan, a bronze drain piped to the floor drain, and a leak detector connected to the building management system. The cold water supply line includes a vacuum relief valve, a two-gallon thermal expansion tank, and a master thermostatic mixing valve approved per ASSE 1017. Unions are installed on the cold water and hot water lines for maintenance access. A temperature and pressure relief valve discharges full size to a mop sink with an offset routed along the wall. Balancing valves and a bronze hot water return pump are incorporated into the hot water return loop, with line sizing referenced from the floor plan.

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