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Regular Dealer Maintenance
To ensure proper operation of your furnace, the rec-
ommended dealer inspection is once a year, before
the heating season. Regular maintenance must be
performed by a qualified service professional.
The servicer should perform steps 1-9 once a year
before the heating season.
The homeowner should perform the visual inspection
in step 1 monthly when cleaning the furnace filter.
unless it is an emergency, never stop the heating
system by shutting off the main power.
If the main power to your air conditioner is ever dis-
connected for more than three hours, turn off the ther-
mostat. Then wait for at least three more hours after
the power has been restored before turning the ther-
mostat back on. Failure to follow this procedure could
result in damage to your furnace.
The following warning complies with State of California law, Proposition 65.
WARNING
�
!
HAZARDOUS GASES!
EXPOSURE
TO
FUEL
PRODUCTS OF INCOMPLETE FUEL COMBUSTION IS
BELIEVED BY THE STATE OF CALIFORNIA TO
CAUSE CANCER, BIRTH DEFECTS, OR OTHER
REPRODUCTIVE HARM.
WARNING
▲
!
HAZARDOuS GASES
uNIT IS EquIPPED WITH A bLOWER DOOR SWITCH
WHICH CuTS POWER TO bLOWER AND GAS vALvE
CAuSING SHuTDOWN WHEN DOOR IS REMOvED.
uNIT MuST NOT bE ALTERED TO ALLOW OPERATION
WITH THE bLOWER DOOR REMOvED. OPERATION
WITH DOORS REMOvED OR AjAR CAN PERMIT THE
ESCAPE OF DANGEROuS FuMES. ALL PANELS MuST
bE SECuRELy CLOSED AT ALL TIMES FOR SAFE OP-
ERATION OF THE FuRNACE. FAILuRE TO FOLLOW
THIS WARNING COuLD RESuLT IN PROPERTy DAM-
AGE, PERSONAL INjuRy OR DEATH.
WARNING
▲
!
EXPLOSION HAZARD
IN THE EvENT THAT ELECTRICAL, FuEL OR MECHANI-
CAL FAILuRES OCCuR, SHuT OFF THE GAS SuPPLy
AT THE MANuAL GAS SHuT OFF vALvE, LOCATED
ON THE SuPPLy GAS PIPING COMING INTO THE FuR-
NACE, bEFORE TuRNING OFF THE ELECTRICAL POW-
ER TO THE FuRNACE. CONTACT SERvICER.
FAILuRE TO FOLLOW THIS WARNING COuLD RE-
SuLT IN PROPERTy DAMAGE, PERSONAL INjuRy OR
DEATH.
32-5035-13
SUBSTANCES
OR
BY-
User's Information
CAuTION
▲
!
Do NOT touch igniter. It is extremely hot.
WARNING
▲
!
EXPLOSION HAZARD
SHOuLD OvERHEATING OCCuR, OR THE GAS SuP-
PLy FAIL TO SHuT OFF, SHuT OFF THE MANuAL GAS
vALvE TO THE FuRNACE bEFORE SHuTTING OFF THE
ELECTRICAL SuPPLy.
FAILuRE TO FOLLOW THIS WARNING COuLD RE-
SuLT IN PROPERTy DAMAGE, PERSONAL INjuRy OR
DEATH.
1. GENERAL INSPECTION – Examine the furnace
installation for the following items:
a. All flue product carrying areas external to the
furnace (i.e. chimney, vent connector) are clear
and free of obstruction.
b. The vent connector is in place, slopes upward
and is physically sound without holes or exces-
sive corrosion.
c.
The return air duct connection(s) is physically
sound, is sealed to the furnace and terminates
outside the space containing the furnace.
d. The physical support of the furnace should be
sound without sagging, cracks, gaps, etc.,
around the base so as to provide a seal between
the support and the base.
e.
There are no obvious signs of deterioration of
the furnace.
f.
The burner flames are in good adjustment
without erratic flames. See illustation on page
10.
g. Fresh air inlet and vent are not blocked and
free from obstruction. The horizontal or verti-
cal vent and inlet must be located at least 12
inches minimum (18 inches in Canada) above
the normally expected snow accumulation
level.
Contact your service agent if you feel you are un-
comfortable performing any of the inspections not-
ed in section 1.
2. BLOWERS – The blower size and speed deter-
mine the air volume delivered by the furnace. The
blower motor bearings are factory lubricated and
under normal operating conditions usually do not
require servicing. Annual cleaning of the blower
wheel and housing is recommended for maximum
air output, and this must be performed only by a
qualified servicer or service agency.
9
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