Refrigerant piping and accessories serve a roof-mounted condensing unit. The liquid line features a filter-dryer and a sight glass with a moisture indicator, followed by back-seated refrigerant valves and gauge connections. Discharge lines include traps at the top and bottom and at intervals of fifteen to twenty feet. The unit connects to lineset enclosures and elevated equipment platforms per architectural standards.
CU - TRAP DISCHARGE LINE AT TOP AND BOTTOM AND AT EVERY 15 TO 20 FEET. REFRIGERANT GAUGE CONNECTIONS, TYP. BACK-SEATED REFRIGERANT VALVE, TYP. SIGHT GLASS WITH MOISTURE INDICATOR REFRIGERANT LIQUID LINE TO ROOF FILTER-DRYER NOTE: SEE ARCHITECTURAL DETAIL 2 ON SHEET A-503 FOR ELEVATED EQUIPMENT PLATFORM PER DFCM STANDARDS. SEE ARCHITECTURAL DETAIL 6 ON SHEET A-502 FOR LINESET ENCLOSURE DETAIL.
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