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TWO TEMPERATURE - THREE HEATERS (TWO PRE-HEATERS/ONE BOOSTER)
WITH OR WITHOUT CIRCULATION
TWO TEMPERATURE - TWO HEATERS (ONE PRE-HEATER/ONE BOOSTER HEATER)
WITH OR WITHOUT RECIRCULATION
* PIPE RELIEF VALVE TO OPEN DRAIN
** 140°F (60°C) TO 150°F (65.5°C) SHOULD BE MAXIMUM WATER
TEMPERATURE MAINTAINED IN THE PRE-HEATERS.
120°F (48.8°C) SHOULD BE THE MINIMUM TEMPERATURE OF WATER
STORED IN THE PRE-HEATERS.
INSTALL IN ACCORDANCE WITH LOCAL CODES
DANGER:
TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURES AT FIXTURES. SEE
WATER TEMPERATURE CONTROL WARNING ON PAGE 10. IF HIGHER PREHEAT TEMPERATURES
ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR
HOT WATER SUPPLIED TO FIXTURES.
INSET B
VACUUM RELIEF VALVE
INSTALL PER LOCAL CODES.
INSET A
INSTALL THERMAL EXPANSION
TANK IN COLD WATER SUPPLY
LINE, IF CHECK VALVE OR
PRESSURE REDUCING VALVE IS
USED IN SUPPLY.
WIRING DIAGRAM FOR FIXTURE OR BOOSTER
LOOP (IF USED) - OTHER THAN DISHWASHER
WIRING DIAGRAM FOR 180° LOOP (IF USED)
CONNECT CIRCULATING LINE FROM FIXTURES, IF USED, TO COLD WATER
SUPPLY LINE OF PRE-HEATER.
CONNECT CIRCULATING LINE OF 180°F OR BOOSTED WATER, IF USED, TO
INLET WATER LINE TO BOOSTER.