A.O. Smith BTH-120 - One Water Heater, Two Temperature with High Temperaure Loop Recirculation with Building Recirculation

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     

                
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WATER PIPING DIAGRAMS       
ONE WATER HEATER, TWO TEMPERATURE WITH HIGH TEMPERAURE LOOP RECIRCULATION WITH BUILDING RECIRCULATION
LEGEND
TEMPERATURE & PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP DRAIN
FULL PORT BALL VALVE
TEMPERATURE GAGE WATER FLOW SWITCH
CHECK VALVE
MIXING VALVE
WARNING: THIS DRAWING SHOWS SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES; CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
HOT WATER
OUTLET
HO
12” TO 15”
MINIMUM
T
COLD
TEMPERED
WATER
TO FIXTURES
COLD WATER SUPPLY
TEMPERED WATER
RETURN
HOT WATER RETURN
EXPANSION TANK
PIPE T&P TO
OPEN DRAIN
LINE TEMPERATURE CONTROL
LINE TEMPERATURE CONTROL
TANK OR LINE TEMPERATURE CONTROL
MIXING VALVE