Multiple cooling coils are arranged in banks with piped connections featuring unions kept clear of the coil removal space. Each header and coil section includes a three-quarter-inch hose end drain valve with a cap and a six-inch long dirt leg. The piping network integrates manual air vents, pressure and temperature test fittings, flexible connections, and typical balancing valves. Control valves and specialties are coordinated per single coil details.
UNION-CLEAR OF COIL REMOVAL SPACE 3/4" HOSE END DRAIN VALVE WITH CAP (EACH HEADER AND COIL SECTION) COOLING COILS MANUAL AIR VENT AIR FLOW BALANCING VALVE VALVE (TYP) PRESSURE/TEMPERATURE TEST FITTING (TYP) 6" LONG DIRT LEG FLEXIBLE CONNECTION (TYP) SEE SINGLE COIL DETAILS FOR CONTROL VALVES AND SPECIALTIES
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