User Information
7
R
OUTINE
M
AINTENANCE
Maintenance is to be performed by a qualified service tech-
nician only. User maintenance is to be restricted to frequent
air filter changes and to ensure the warnings and notices
found elsewhere in this manual be followed. We recom-
mend that at a minimum system maintenance be performed
by a qualified service technician prior to the beginning of
each heating season, and if equipped with air conditioning,
prior to air conditioning season.
P
ERSONAL
INJURY
OR
DEATH
MAY
RESULT
FROM
IMPROPER
MAINTENANCE
PERFORMED
BY
UNTRAINED
PERSONNEL
. C
ALL
YOUR
INSTALLING
DEALER
OR
OTHER
QUALIFIED
SERVICE
COMPANIES
TO
PERFORM
THE
MAINTENANCE
INSPECTION
.
WARNING
T
O
PREVENT
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRIC
SHOCK
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
SERVICING
THIS
UNIT
.
WARNING
ANNUAL INSPECTION
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 by a quali-
fied technician. This will insure that all furnace components
are in proper working order and that the heating system func-
tions appropriately. Particular attention should be paid to
the following items. Repair or service as necessary.
Check the
Burner Flames for:
1. Stable, soft and blue.
2. Not curling, floating
or lifting off.
• Flue pipe system. Check for blockage and/or leakage.
Check the outside termination and the connections at
and internal to the furnace.
• Combustion air intake pipe system (where applicable).
Check for blockage and/or leakage. Check the outside
termination and the connection at the furnace.
• Heat exchanger. Check for corrosion and/or buildup
within the heat exchanger passageways.
• Burners. Check for proper ignition, burner flame, and
flame sense. Flames should extend directly outward
from burners without curling, floating or lifting off.
• Wiring. Check electrical connections for tightness and/
or corrosion. Check wires for damage.
• Drainage system. Check for blockage and/or leakage.
Check hose connections at and internal to furnace.
• Filters. Check that filters are clean and in the proper
placement in the furnace or duct system.
MOTORS
The combustion air motor and indoor blower motor are per-
manently lubricated and require no further lubrication.
FILTERS
T
O
AVOID
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
REMOVING
FILTERS
OR
PERFORMING
ANY
OTHER
MAINTENANCE
. N
EVER
OPERATE
FURNACE
WITHOUT
A
FILTER
INSTALLED
BECAUSE
DUST
AND
LINT
WILL
BUILD
UP
ON
INTERNAL
PARTS
RESULTING
IN
LOSS
OF
EFFICIENCY
,
EQUIPMENT
DAMAGE
OR
POSSIBLE
FIRE
.
WARNING
A return air filter is not supplied with this furnace and cannot
be installed inside the cabinet; however, a means of filtering
all of the return air (intake) must be provided. Your installer
will supply filters at the time of installation. Become familiar
with filter location and procedures for removing, cleaning and
replacing them.
If you need assistance, contact the installer of your furnace
or another qualified servicer.
Filters must be inspected, cleaned or changed every two
months or as required. As a homeowner, it is your personal
responsibility to keep air filters clean. Remember that dirty
filters are the most common cause of inadequate heating or
cooling performance.
FILTER REMOVAL
Depending on the installation, differing filter arrangements
can be applied. Filters can be located in a central return
grille or a side panel external filter rack (upflow only). To
remove filters from an external filter rack, follow the direc-
tions provided with external filter rack kit
Horizontal Unit Filter Removal
Filters in horizontal installations are located in the central
return register or the ductwork near the furnace.
To remove:
1. Turn OFF electrical power to furnace.
2. Remove filter(s) from the central return register or
ductwork.
3. Replace filter(s) by reversing the procedure for removal.
4. Turn ON electrical power to furnace.