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DANGER
TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 5. IF HIGHER
PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES.
CAUTION: IF BUILDING COLD WATER SUPPLY HAS A BACK-FLOW PREVENTER, CHECK VALVE OR WATER METER WITH CHECK VALVE PROVISIONS FOR THERMAL
EXPANSION OF WATER IN THE HOT WATER SYSTEM MUST BE PROVIDED.
*PIPE RELIEF VALVE TO OPEN DRAIN.
NOTE: IF TEMPERED WATER IS RECIRCULATED, RETURN LINE SHOULD BE CONNECTED AT POINT “A”.
INSTALL IN ACCORDANCE WITH LOCAL CODES.
TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE
WITH OR WITHOUT BUILDING RECIRCULATION