Mechanical · M-G4QGB

Chilled Water Cooling Coil Piping Connection Detail

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Supply and return connections for a chilled water cooling coil assembly comprise an automatic three-way control valve, calibrated balancing valve, strainer, and thermometers on the chilled water return (CHR) and supply (CHS) lines. Union or grooved joint couplings connect the piping to the coil units, accompanied by manual air vents and a full-size drain with a threaded hose end situated above the manufacturer's drain pan. Specific installation notes dictate installing a valved drain at the return header, a valved manual air vent at the supply header, and a temporary bypass line on the system side of the control valve for flushing.

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