Lanair MX300 - Manual (Page 35)

Section 12 - Flame Adjustment
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31
CHECK FLAME DAILY (see page 30). ADJUST ACCORDINGLY
!
DO NOT OVER FIRE YOUR HEATER. IMMEDIATELY ADJUST
THE BURNER TO THE PROPER FLAME LENGTH TO PREVENT
DAMAGE TO YOUR HEATER.
!
Problem: Too small a flame, similar to a blowtorch.
1. Too much atomizing air pressure.
2. Too much combustion air pressure.
3. Not enough fuel pressure when using a by-pass regulator.
Solutions:
1. Correct fuel pressure setting when using a by-pass regulator.
2. Flame tips reach 3/4 of the way into the chamber.
3. Flame has slightly yellow/orange tips.
4. No black smoke coming from the chimney.
5. Ash inside the chamber is white to off white in color.
6. Open combustion air baffle on the side of the burner.
Flame is full (Fig. 13).
Bright yellow in color.
Flame extends 3/4 into the chamber.
Flame is not impinging on the chamber walls.
If you need assistance with flame adjustment, please call Lanair's Parts and Service
Department.