Installation Instructions Comfort Bridge Models

46
InDuceD Draft anD cIrculator Blowers
CAUTION
to 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.
conDensate traP anD DraIn sYsteM (qualIfIeD
serVIcer onlY)
Annually inspect the drain tubes, drain trap, and eld-
supplied drain line for proper condensate drainage. Check
drain system for hose connection tightness, blockage, and
leaks. Clean or repair as necessary.
flaMe sensor (qualIfIeD serVIcer onlY)
Under some conditions, the fuel or air supply can create a
nearly invisible coating on the ame sensor. This coating
acts as an insulator causing a drop in the ame sense
signal. If the ame sense signal drops too low the furnace
will not sense ame and will lock out. The ame sensor
should be carefully cleaned by a qualied servicer using
steel wool.
flue Passages (qualIfIeD serVIcer onlY)
The heat exchanger ue 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
annual InsPectIon
WARNING
to aVoID electrIcal sHock, InjurY or
DeatH, DIsconnect electrIcal Power
Before PerforMIng anY MaIntenance.
If You Must HanDle tHe IgnIter,
HanDle wItH care. toucHIng tHe
IgnIter eleMent wItH Bare fIngers,
rougH HanDlIng or VIBratIon coulD
DaMage tHe IgnIter resultIng In
PreMature faIlure. onlY a qualIfIeD
serIcer sHoulD eVer HanDle tHe
IgnIter.
The furnace should be inspected by a qualied 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
fIlter MaIntenance
Improper lter maintenance is the most common cause
of inadequate heating or cooling performance. Filters
should be cleaned (permanent) or replaced (disposable) as
required.
Burners
Visually inspect the burner ames periodically during the
heating season. Turn on the furnace at the thermostat
and allow several minutes for ames to stabilize, since any
dislodged dust will alter the ames 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, oating, or lifting off. Flames must not impinge on
the sides of the heat exchanger ring tubes.