Manual

User's Information Manual
c. (Upflow or downflow installations with duct connection
at bottom only.) The physical support of the furnace is
sound without sagging, cracks, gaps, etc., around the
base so as to provide an air seal between the support
and the base.
d. There should be no obvious signs of deterioration of the
furnace.
e. Check that the pilot and burner flames are in good ad-
justment. To inspect the Pilot and Main Burner flames it
will be necessary to remove the Iouvered door on the
front of the furnace, except for furnaces not having any
louvers in the doors. The doors of these furnaces must
remain installed (to prevent changes in flame appear-
ance) while inspecting the Pilot and Main Burner flames
through the view port in the door. Contact a qualified
service agency at once if an abnormal flame appear-
ance is identified.
Main Burner Flame: Check for the following:
• Stable and blue flames. See Figure 1.
• Flames extending directly from burner into heat
exchanger.
• Flames do NOT touch sides of heat exchanger.
NOTE: Dust may cause orange tips or wisps of yellow, but flames
MUST NOT have solid, yellow tips.
Main Burner
Face
10-10-78
• Check main burner flames monthly.
• Check main burner flames monthly.
Pilot Burner Flame: While the main burner is ON, the
flame should envelop the upper part of the Flame Sen-
sor, as shown in Figure 2.
f. With the equipment shutoff valve turned OFF, remove
the burner compartment door of the furnace to use a
flashlight to inspect the visible parts of the burners and
igniter. Check for loose soot and give particular atten-
tion to obvious deterioration from corrosion or other
sources. If soot or deterioration is found inside the fur-
nace, DO NOT OPERATE FURNACE; call a qualified
service agency.
g. Inspect the drain line and overflow line monthly (con-
densing furnace and/or air conditioning cooling coil at-
tached to furnace).
Pilot Burner
Pilot
Proper Flame
Adjustment
3t8"1o1t2"
----- Flame Sensor
Hot Surface
Igniter
10-11-65
Combustion Air (Your Safety)
Flame
Sensor
CARBON MONOXIDE POISONING HAZARD
Lack of combustion air could result in carbon
monoxide gas which could cause death or seri-
ous bodily injury.
All fuel-burning appliances must be provided
with enough fresh air for proper combustion and
ventilation of flue gases.
Some models use air from the space in which
they are located, and other appliances in the
same space may also be using indoor air for ven-
tilation and/or combustion.
New materials and methods are being used in construction and
remodeling which result in lower energy costs for heating and
cooling. It may also mean your appliances may not be getting
enough air for combustion and ventilation of flue gases. The use
of exhaust fans, fireplaces, clothes dryers, and other appliances
consume air or vent it to the outdoors.
If the gas appliances or heating furnace can't get enough air, two
conditions may result:
1. The appliances or furnace may produce carbon monoxide
gas.
2. The appliance may not vent flue gases properly. The fol-
lowing are signs that your appliances may not be getting
enough air for proper combustion.
Be aware of these signals;
1. Headaches-Nausea-Dizziness
2. Excessive humidity-heavily frosted windows or a
moist "clammy" feeling in the structure.
3. Smoke from the fireplace won't draw up the
chimney.
441 02 2010 04