An automatic air vent is installed on each supply and return pipe to discharge trapped air from the HVAC system. A ball valve is positioned below the air vent to allow for isolation and maintenance. A drain line is routed from the top of the vent at full size to an indirect floor sink.
BALL VALVE AUTOMATIC AIR VENT, TYPICAL ONE EACH SUPPLY AND RETURN PIPE PIPE DRAIN LINE FULL SIZE TO FLOOR SINK SUPPLY/RETURN TO/FROM EQUIPMENT SUPPLY/RETURN RISER/DROP, SEE FLOOR PLANS FOR SIZE
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