• Set DIP Switch #7 to the ON position to
run boiler in “Min Fire”
• Set DIP SW #7 Back to the OFF
position after fan speed adjustment
ON OFF #
MIN
Fire Normal Operation
MAX
Fire Normal Operation
NG Natural LP Propane
5
3" Vent Size 2" Vent Size
4
Do Not Touch Normal Operation
3
Do Not Touch Normal Operation
2
Normal Operation Do Not Touch
1
Manual “Min Fire”