46
I
nDuceD
D
raft
anD
c
Irculator
B
lowers
CAUTION
t
o
ensure
ProPer
unIt
PerforMance
,
aDHere
to
tHe
fIlter
sIZes
gIVen
In
tHe
recoMMenDeD
MInIMuM
fIlter
sIZe
taBle
or
sPecIfIcatIon
sHeet
aPPlIcaBle
to
Your
MoDel
.
The bearings in the induced draft blower and circulator
blower motors are permanently lubricated by the
manufacturer. No further lubrication is required. Check
motor windings for accumulation of dust which may cause
overheating. Clean as necessary.
c
onDensate
t
raP
anD
D
raIn
s
YsteM
(q
ualIfIeD
s
erVIcer
o
nlY
)
Annually inspect the drain tubes, drain trap, and field-
supplied drain line for proper condensate drainage. Check
drain system for hose connection tightness, blockage, and
leaks. Clean or repair as necessary.
f
laMe
s
ensor
(q
ualIfIeD
s
erVIcer
o
nlY
)
Under some conditions, the fuel or air supply can create a
nearly invisible coating on the flame sensor. This coating
acts as an insulator causing a drop in the flame sense
signal. If the flame sense signal drops too low the furnace
will not sense flame and will lock out. The flame sensor
should be carefully cleaned by a qualified servicer using
steel wool.
f
lue
P
assages
(q
ualIfIeD
s
erVIcer
o
nlY
)
The heat exchanger flue passageways should be inspected
at the beginning of each heating season.
BEFORE LEAVING AN INSTALLATION
•
Cycle the furnace with the thermostat at least three
times. Verify cooling and fan only operation.
•
Review the Owner’s Manual with the homeowner and
discuss proper furnace operation and maintenance.
•
Leave literature packet near furnace.
MAINTENANCE
a
nnual
I
nsPectIon
WARNING
t
o
aVoID
electrIcal
sHock
,
InjurY
or
DeatH
,
DIsconnect
electrIcal
Power
Before
PerforMIng
anY
MaIntenance
.
I
f
You
Must
HanDle
tHe
IgnIter
,
HanDle
wItH
care
. t
oucHIng
tHe
IgnIter
eleMent
wItH
Bare
fIngers
,
rougH
HanDlIng
or
VIBratIon
coulD
DaMage
tHe
IgnIter
resultIng
In
PreMature
faIlure
. o
nlY
a
qualIfIeD
serIcer
sHoulD
eVer
HanDle
tHe
IgnIter
.
The furnace should be inspected by a qualified installer, or
service agency at least once per year. This check should
be performed at the beginning of the heating season.
This will ensure that all furnace components are in proper
working order and that the heating system functions
appropriately. Pay particular attention to the following
items. Repair or service as necessary.
• Flue pipe system. Check for blockage and/or
leakage. Check the outside termination and the
connections at and internal to the furnace.
• Wiring. Check electrical connections for tightness
and/or corrosion. Check wires for damage.
FILTERS
f
Ilter
M
aIntenance
Improper filter maintenance is the most common cause
of inadequate heating or cooling performance. Filters
should be cleaned (permanent) or replaced (disposable) as
required.
B
urners
Visually inspect the burner flames periodically during the
heating season. Turn on the furnace at the thermostat
and allow several minutes for flames to stabilize, since any
dislodged dust will alter the flames normal appearance.
Flames should be stable, quiet, soft, and blue (dust may
cause orange tips but they must not be yellow). They
should extend directly outward from the burners without
curling, floating, or lifting off. Flames must not impinge on
the sides of the heat exchanger firing tubes.
