five commercial atmospheric vent with return circulation
SHUT OFF VALVE CIRCULATOR
WATER SUPPLY
BACK-FLOW PREVENTER
FIVE COMMERCIAL ATMOSPHERIC VENT WITH RETURN CIRCULATION
SYSTEM RETURN
BACK-FLOW PREVENTER
SHUT OFF VALVE
SHUT OFF VALVE
SHUT OFF VALVE (5)
EXPANSION TANK* UNION (5)
TEMPERATURE AND PRESSURE RELIEF VALVE (5)
DISCHARGE TUBE (5)
HOT WATER
GAS VALVE (5)
FLUE DAMPER (5)
FLOOR DRAIN (5)
CONTROL BOX (5) DRAIN OUTLET (5)
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.
WATER SUPPLY
BACK-FLOW PREVENTER
FIVE COMMERCIAL ATMOSPHERIC VENT WITH RETURN CIRCULATION
SYSTEM RETURN
BACK-FLOW PREVENTER
SHUT OFF VALVE
SHUT OFF VALVE
SHUT OFF VALVE (5)
EXPANSION TANK* UNION (5)
TEMPERATURE AND PRESSURE RELIEF VALVE (5)
DISCHARGE TUBE (5)
HOT WATER
GAS VALVE (5)
FLUE DAMPER (5)
FLOOR DRAIN (5)
CONTROL BOX (5) DRAIN OUTLET (5)
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.
