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Gas Control
EcoStor2™ Solar
Temperature Sensor
The solar with gas backup water heater senses temperature from the upper portion of
the tank. This allows the solar thermal heating system to maximize the ability to heat
the water inside the tank. Only when the upper portion of the water heater tank
reaches the water temperature to turn on the gas control, does the backup heat begin.
This is achieved by placing a thermistor sensor inside a thermal well and connecting
the sensor by means of a wire harness to the gas control. The thermistor well, sensor
and wire harness connection is located under the top access cover.
Wire harness
Thermistor sensor
Thermistor sensor
connection to
in well
outside well
thermistor
Wire harness connected
Wire harness plug in
to the gas control
location to the gas control
NOTE: Depending on the solar with gas backup model, the gas control may vary.
Refer to the base model service manual as indicated on page 3.
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