Mechanical · M-GKQCH

Vav Reheat Box With 3-Way Valve Detail

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This hydronic piping diagram outlines the connections for a VAV reheat coil served by hot water heating supply and return lines. The assembly incorporates a three-way control valve connected via typical unions, a calibrated balancing valve on the bypass, and pressure-temperature test plugs. Strainers feature a blowdown valve and hose connection with a cap matching the blowdown size. A three-eighths-inch manual air vent is positioned at the high point, while a three-quarter-inch manual drain with a hose connection and cap serves the low point. Piping must be arranged to maintain required service clearances.

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