One Commercial Atmospheric Vent with Four Storage Tanks & Return

ONE COMMERCIAL ATMOSPHERIC VENT WITH FOUR STORAGE TANKS & RETURN CIRCULATION 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.

UNION (4)

SHUT OFF VALVE

SHUT OFF VALVE (4)

UNION (4) SHUT OFF VALVE (4)

TEMPERATURE AND PRESSURE RELIEF VALVE (4)

UNION FLUE DAMPER

DISCHARGE TUBE

UNION TEMPERATURE AND PRESSURE RELIEF VALVE BACK-FLOW PREVENTER

HOT WATER CIRCULATOR

CONTROL BOX GAS VALVE DRAIN OUTLET FLOOR DRAIN

SHUT OFF VALVE EXPANSION TANK* SHUT OFF VALVE

DISCHARGE TUBE (4)

SHUT OFF VALVE

SYSTEM RETURN

SHUT OFF VALVE

WATER SUPPLY

BACK-FLOW PREVENTER

DRAIN OUTLET (4)

FLOOR DRAIN (4)