LD Atmospheric Vent Models with

TWO RESIDENTIAL/LD ATMOSPHERIC VENT MODELS WITH RETURN CIRCULATION & INTEGRATED MIXING DEVICE 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

EXPANSION TANK* SHUT OFF VALVE

UNION

WATER SUPPLY BACK-FLOW PREVENTER

UNION CONNECT RECIRCULATION TO "R" CONNECTION ON IMD DETAIL

SHUT OFF VALVE SYSTEM RETURN

MIXED WATER CIRCULATOR

HONEYWELL INTEGRATED MIXING DEVICE (IMD)

RECIRCULATED WATER

C

REDUCER COUPLING

UNION

SHUT OFF VALVE

HONEYWELL INTEGRATED MIXING DEVICE (IMD)

MIXED WATER

COLD IN

UNION

SHUT OFF VALVE

MIXED WATER

"AH" CONNECTOR

BACK-FLOW PREVENTER

SHUT OFF VALVE

UNION TEMPERATURE AND PRESSURE RELIEF VALVE

UNION

TEMPERATURE AND PRESSURE RELIEF VALVE

DISCHARGE TUBE

DISCHARGE TUBE

DRAIN

"R" CONNECTOR DRAIN OUTLET HOT CONNECTOR

DRAIN

DRAIN OUTLET