two commercial atmospheric vent with storage tank

TWO COMMERCIAL ATMOSPHERIC VENT WITH STORAGE TANK & RETURN CIRCULATION SHUT OFF VALVE UNION

HOT WATER

UNION T&P RELIEF VALVE

SHUT OFF VALVE UNION SHUT OFF VALVE

FLUE DAMPER (2)

DISCHARGE TUBE

DRAIN OUTLET

T&P RELIEF VALVE

SHUT OFF VALVE

CONTROL BOX (2)

DISCHARGE TUBE (2) GAS VALVE

FLOOR DRAIN

BACK-FLOW PREVENTER

CIRCULATOR

DRAIN OUTLET (2)

THIS DRAWING SHOWS A SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES; CHECK WITH LOCAL CODES AND ORDINANCES FOR ADDITIONAL REQUIREMENTS. *EXPANSION TANK RECOMMENDED TO MINIMIZE ANY PRESSURE BUILD UP IF THE WATER SUPPLY PIPING HAS A BACK-FLOW PREVENTER, CHECK VALVE OR WATER METER WITH A CHECK VALVE.

SHUT OFF VALVE EXPANSION TANK* GAS VALVE

FLOOR DRAIN (2)

SHUT OFF VALVE

SYSTEM RETURN

WATER SUPPLY BACK-FLOW PREVENTER