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b. Disconnect wires from the flame rod and ignition
electrode.
c. Disconnect the gas piping at the union.
d. The entire burner assembly can now be removed
from the unit.
NOTE: Use all screws that were removed; they are
necessary for safe and proper operation of the unit.
3 Inspect and periodically clean the vent outlet (bird
screen) on the access panel.
NOTE: Periodic observation of the flame and a log of C0
2
measurements are recommended. This will aid in determining
whether the furnace is operating efficiently or if the furnace
requires cleaning.
Flames should be stable, soft and blue (dust may cause or-
ange tips but must not be yellow). The flames must extend
directly outward from the burner without curling, floating or
lifting off.
Check the burner flames for:
1. Good adjustment
2. Stable, soft and blue
3. Not curling, floating, or lifting off.
Burner Flame
WARNING
T
O AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK,
DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY
ADJUSTMENT.
C
ONTACT A QUALIFIED SERVICER AT ONCE IF AN ABNORMAL
FLAME SHOULD DEVELOP.
At least once a year, prior to or during the heating season,
make a visual check of the burner flames.
NOTE: This will involve removing and reinstalling the heat
exchanger door on the unit, which is held by two screws. If
you are uncertain about your ability to do this, contact a
qualified servicer.
If a strong wind is blowing, it may alter the airflow pattern
within the unit enough that an inspection of the burner flames
is not possible.
FUNCTIONAL PARTS
Refer to the unit Parts Catalog for a list of functional parts.
Parts are available from your distributor.