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PIPING DIAGRAM
ONE OR TWO TEMPERATURE - ONE HEATER
ONE OR TWO TEMPERATURE - TWO HEATER
DANGER:
TEMPERATURE SETTING SHOULD NOT
EXCEED SAFE USE TEMPERATURE AT
FIXTURES. SEE WATER TEMPERATURE
CONTROL WARNING ON PAGES 17 & 18. 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 TO OPEN DRAIN.
INSTALL IN ACCORDANCE WITH ALL LOCAL CODES.