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Operation
Pellet Boiler Outdoor Air Reset Operation
When the outdoor sensor is installed, at 20° F. or below OAT (Outdoor Air
Temperature), the boiler will operate at the temperature set on the Maximum
Temperature knob. The boiler water temperature will decrease by 1 degree for
every 1 degree in temperature rise of the Outside Air.
Example 1 OAT Water Temp Degree Change
Max set at 185o 65o 140o -45°
Min set at 140o 60o 145o -40°
55o 150o -35°
50o 155o -30°
45o 160o -25o
40o 165o -20o
35o 170o -15o
30o 175o -10o
25o 180o -5o
20o 185o 0o
15o 185o 0o
10o 185o 0o
5o 185o 0°
0o 185o
Example 2 OAT Water Temp Degree Change
Max set at 180o 65o 150o *
Min set at 150o 60o 150o *
55o 150o *
50o 150o -30o
45o 155o -25o
40o 160o -20o
35o 165o -15o
30o 170o -10o
25o 175o -5o
20o 180o 0o
15o 180o 0o
10o 180o 0o
5o 180o 0o
0o 180o 0o
* No change in boiler temperature after reaching minimum setpoint temperature.