Outdoor Reset Control
This model also has Outdoor Reset control. An outdoor temperature sensor is used to monitor
the outside temperature. The electronic controls then regulate the water temperature based on
both the aquastat setting and the outside temperature to fine tune the boilers heat output. As
the temperature outside increases, the boiler control will decrease the target water temperature
set on the aquastat. By modulating the boilers heat output based on both the indoor and
outdoor temperature, your CEBR model provides you with the ultimate in indoor comfort.
The graph below is an example with the aquastat set to 35º C. During colder weather, below -
20º C, the boiler will maintain the heat output at the aquastat setting, but as the temperature
increases outdoors, the heat output of the boiler will be decreased. For example when it is -10º
C outside the water temperature will be 32º C, and when it is 5º C outside the water
temperature will be 27º C.
Target Water Temperature Example ( Temperature in degrees C)
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