Recommended Piping for Power Failure Freeze Protection
As long as electrical power and gas are supplied to the EVERHOT→ water heater, freeze protection is provided to the heat exchanger and piping inside the water heater with ambient temperatures as cold as
The electrical connections for the two solenoids must be tied to the 120 volt main power supply terminals provide on the PCB board. When the electrical power to the water heater fails, the ¾” solenoid on the cold water inlet pipe closes, stopping water flow into the water heater. The ¼” solenoid opens, allowing the water heater and connected piping to drain. Make sure the piping from the drain solenoid is run to a suitable drain or outside the building to prevent water damage.
Drain Solenoid Piping (Fig. 3)
CAUTION
All piping located outside the building must be insulated and wrapped with heat tape to prevent freezing.
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