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