ld electric models with return circulation

SHUT OFF VALVE

TWO RESIDENTIAL/LD ELECTRIC MODELS WITH RETURN CIRCULATION

SYSTEM RETURN

CIRCULATOR

WATER SUPPLY

BACK-FLOW PREVENTER TEMPERATURE AND PRESSURE RELIEF VALVE

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.

TEMPERATURE AND PRESSURE RELIEF VALVE

BACK-FLOW PREVENTER SHUT OFF VALVE

SHUT OFF VALVE

EXPANSION TANK*

UNION

SHUT OFF VALVE UNION

SHUT OFF VALVE

SHUT OFF VALVE UNION HOT WATER DISCHARGE TUBE UNION

DISCHARGE TUBE UNION

DRAIN DRAIN OUTLET

DRAIN OUTLET

SHUT OFF VALVE DRAIN