A.O. Smith BTH-120 - Water Piping Diagrams; One Water Heater, Single Temperature with Building Recirculation

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     

                

WATER PIPING DIAGRAMS       
ONE WATER HEATER, SINGLE TEMPERATURE
WITH BUILDING RECIRCULATION
LEGEND
TEMPERATURE & PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP
TANK OR LINE TEMPERATURE
CONTROL
DRAIN
FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE
WARNING: THIS DRAWING SHOWS SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES; CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
FINISHED FLOOR
EXPANSION TANK
HOT WATER OUTLET
PIPE T&P TO
OPEN DRAIN
COLD
WATER
SUPPLY
HOT WATER RETURN
LINE TEMPERATURE CONTROL