Hubbell Electric Heater Company EMV - Manual (Page 9)

RECIRCULATION PACKAGE
A recirculation loop can be used to provide tepid water at the emergency fixtures for applications where
the water heater is a great distance away. This loop usually continuously recirculates the water via a
small pump that returns the water to the heater. The water returned from the loop feeds back into the
water heater mixing valve. Therefore, the loop is continuously maintained at the mixing valve
temperature thus assuring proper temperature water at the fixtures.
SECTION III -
SCHEDULED MAINTENANCE AND OPERATION
WARNING / CAUTION
Before performing any maintenance procedure, make certain power supply is OFF and cannot accidentally be
turned on.
MAINTENANCE AND OPERATION
The water heater is automatic in its operation. It will maintain a full tank of water at the temperature setting of
the thermostat. The water heater should not be turned on without first making sure that the tank is full of
water and that all air has been released.
FREEZING
The tank should be fully drained in the event the electricity has been turned off and if there is danger of
freezing.
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