User’s Information Manual
4
441 02 2011 00
d. (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.
e. There should be no obvious signs of deterioration of the
furnace.
f. Check that the burner flames are in good adjustment. To
inspect the Main Burner flames it will be necessary to re-
move the louvered door on the front of the furnace, except
for furnaces not having any louvers in the doors. The
doors (no louvers) of these furnaces must remain installed
(to prevent changes in flame appearance) while inspect-
ing the Main Burner flames through the view port in the
door.
Contact a qualified service agency at once if an
abnormal flame appearance 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
Burner Face
10--10--78
Figure 1
·
Check main burner flames monthly.
g. 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 attention to ob-
vious deterioration from corrosion or other sources. If soot
or deterioration is found inside the furnace,
DO NOT OP-
ERATE FURNACE
; call a qualified service agency.
h. Inspect the drain line and overflow line monthly (condens-
ing furnace and/or air conditioning cooling coil attached to
furnace).
Combustion Air (Your Safety)
CARBON MONOXIDE POISONING HAZARD
Lack of combustion air could result in carbon
monoxide gas which could cause death or serious
personal 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 ventilation and/or
combustion.
!
WARNING
New materials and methods are being used in construction and re-
modeling 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 orvent
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 follow-
ing 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.
CARBON MONOXIDE POISONING HAZARD.
Carbon monoxide poisoning could result in death
from asphyxiation or serious personal injury.
If you experience headaches, nausea, or
dizziness, carbon monoxide may be present.
Leave the house immediately and call your gas
supplier.
!
WARNING
Combustion Air Checks
If any of the above signals are noticed, perform a combustion air
check or call a qualified service agency. If you add weather strip-
ping, storm windows, insulation, an additional fuel burning ap-
pliance, or remodel the structure, a combustion air check
MUST
be
accomplished after the addition.
Make the inspection as follows:
1. Close all doors and windows. If you have a fireplace, start a
fire and wait until flames are burning vigorously.
2. Turn on all exhausting devices, such as: kitchen and bath-
room exhaust fans and dryers (gas or electric).
3. Turn on all vented gas appliances, such as: heating equip-
ment (includes any room heaters) and water heaters.
4. Wait ten (10) minutes for drafts to stabilize.
5. On appliances with a draft hood, check for spillage by holding
a lighted match 2
²
from the draft hood opening. Reference
Figure 2
, which shows a water heater draft hood.
Typical Gas
Water Heater
Draft Hood
Vent Pipe
Match
Water Heater Draft Hood
Figure 2
A.
Match flame pulls toward draft hood.
This indicates no spillage and that appliance is getting
enough air for combustion. Return exhausting devices and
appliances to the condition in which you found them .