Table of Contents
Advertisement
7. After the burners have been lit for at least 90 seconds, observe the flames through the burner viewing ports
located on each side of the combustion air blower. (See Figure 4)
Left Viewing
Port
The air/gas mixture is properly adjusted when the burner manifold pressure is in accordance with the applicable
table on page 2-7 and the burners display a bright orange-red glow. If a blue flame is observed, or if there are dark
spots on a burner face, the air/gas mixture requires adjustment.
On the side of the blower housing opposite the motor is a plate with one or two locking nuts (see illustration on the
following page). Loosen the nut(s) enough to allow the plate to be moved, then adjust the position of the plate to
open or close the air intake opening until a bright orange-red glow is obtained. Carefully hold the plate in position
and tighten the locking nut(s).
TYPICAL BLOWER ASSEMBLY
Figure 4
SOME CE BLOWER ASSEMBLIES
MAY BE CONFIGURED THIS WAY
5-7
Right
Viewing
Port is
Behind
Motor
Advertisement
Table of Contents
Troubleshooting
