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WATER PIPING DIAGRAMS
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ONE WATER HEATER, SINGLE TEMPERATURE
WITH VERTICAL STORAGE TANK FORCED 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
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
FINISHED
FLOOR
HOT WATER
OUTLET
HOT WATER
RETURN
COLD WATER
SUPPLY
EXPANSION
TANK
ALT. COLD WATER
CONNECTION
PIPE T&P TO
OPEN DRAIN
TANK OR LINE TEMPERATURE
CONTROL
LINE TEMPERATURE
CONTROL
TANK TEMPERATURE
CONTROL
NOTE:
The water heater’s Operating Set Point should be set 5° higher than the Tank Temperature Control in the auxiliary storage tank.
STORAGE TANK