Mechanical · M-3SZN8

Heating Coil Piping Schematic

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This piping schematic outlines the supply and return connections for a water coil, featuring a 3-way control valve, 2-way automatic control valve, and plug cock. A strainer with a blowdown valve, hose connection, and cap is installed on the supply line. Shut-off valves and unions are placed typically throughout the piping arrangement for maintenance. Pressure and temperature test ports, a calibrated balancing valve, thermometers, and 3/8-inch manual air vents are provided at key points along the headers. Valved drains and manual air vents are required at the return and supply headers of each coil section per the accompanying notes.

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