one commercial atmospheric vent with return circulation
ONE COMMERCIAL ATMOSPHERIC VENT WITH RETURN CIRCULATION SHUT OFF VALVE
SYSTEM RETURN
CIRCULATOR WATER SUPPLY
SHUT OFF VALVE
BACK-FLOW PREVENTERS
SHUT OFF VALVE
SHUT OFF VALVE
HOT WATER
EXPANSION TANK*
UNION UNION
T&P RELIEF VALVE FLUE DAMPER DISCHARGE TUBE
CONTROL BOX
THIS DRAWING SHOWS A SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES; CHECK WITH LOCAL CODES AND ORDINANCES FOR ADDITIONAL REQUIREMENTS.
GAS VALVE
*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.
DRAIN OUTLET FLOOR DRAIN
SYSTEM RETURN
CIRCULATOR WATER SUPPLY
SHUT OFF VALVE
BACK-FLOW PREVENTERS
SHUT OFF VALVE
SHUT OFF VALVE
HOT WATER
EXPANSION TANK*
UNION UNION
T&P RELIEF VALVE FLUE DAMPER DISCHARGE TUBE
CONTROL BOX
THIS DRAWING SHOWS A SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES; CHECK WITH LOCAL CODES AND ORDINANCES FOR ADDITIONAL REQUIREMENTS.
GAS VALVE
*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.
DRAIN OUTLET FLOOR DRAIN
