Care And Maintenance; Cleaning And/Or Replacing Air Filter; Blower Motor And Wheel - Carrier 120/C Series Installation, Start-Up, Operating And Service And Maintenance Instructions

Step 2—Care and Maintenance
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury,
death and/or property damage.
Never store anything on, near, or in contact with the furnace,
such as:
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum
cleaners, or other cleaning tools.
2. Soap powders, bleaches, waxes or other cleaning com-
pounds, plastic or plastic containers, gasoline, kerosene,
cigarette lighter fluid, dry cleaning fluids, or other volatile
fluids.
3. Paint thinners and other painting compounds, paper bags,
or other paper products.
For continuing high performance and to minimize possible equip-
ment failure, periodic maintenance must be performed on this
equipment. Consult your local dealer about proper frequency of
maintenance and the availability of a maintenance contract.
ELECTRICAL SHOCK AND FIRE HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
Turn off the gas and electrical supplies to the unit before
performing any maintenance or service. Follow the operating
instructions on the label attached to the furnace.
CARBON MONOXIDE POISONING AND FIRE
HAZARD
Failure to follow this warning could result in personal injury,
death and/or property damage.
Never operate unit without a filter or with filter access door
removed.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing, safety glasses and
gloves when handling parts and servicing furnaces.
The minimum maintenance on this furnace is as follows:
1. Check and clean air filter each month or more frequently if
required. Replace if torn.
2. Check blower motor and wheel for cleanliness each heating
and cooling season. Clean as necessary.
3. Check electrical connections for tightness and controls for
proper operation each heating season. Service as necessary.
4. Inspect burner compartment before each heating season for
rust, corrosion, soot or excessive dust. If necessary, have
furnace and burner serviced by a qualified service agency.
5. Inspect the vent pipe/vent system before each heating season
for rust, corrosion, water leakage, sagging pipes or broken
fittings. Have vent pipes/vent system serviced by a qualified
service agency.
6. Inspect any accessories attached to the furnace such as a
humidifier or electronic air cleaner. Perform any service or
Table 13—Filter Size Information (IN.)
FURNACE
CASING WIDTH
Side Return
14-1/2 16 X 25 X 1
17-1/2 16 X 25 X 1
21 16 X 25 X 1
24 16 X 25 X 1
* Recommended
maintenance to the accessories as recommended in the acces-
sory instructions.

CLEANING AND/OR REPLACING AIR FILTER

The air filter arrangement will vary depending on the application.
The filter is exterior to the furnace casing.
NOTE: If the filter has an airflow direction arrow, the arrow must
point towards the blower.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing, safety glasses and
gloves when handling parts and servicing furnaces.
Media cabinet filter procedures :
NOTE: Media cabinet is included with single-stage deluxe fur-
nace.
1. Turn off electrical supply to furnace before removing filter
access door.
2. Remove filter cabinet door.
3. Slide filter out of cabinet.
4. If equipped with permanent, washable 1-inch filter, clean filter
by spraying cold tap water through filter in opposite direction
of airflow. Rinse filter and let dry. Oiling or coating of the
filter is not recommended. See Table 13 for size information.
5. If equipped with factory-specified disposable media filter,
replace only with media filter having the same part number
and size. For expandable replacement media, refer to the
instructions included with the replacement media. If equipped
with accessory KGAFR0301ALL external filter rack, See
Table 13.
6. Slide filter into cabinet.
7. Replace filter cabinet door.
8. Turn on electrical supply to furnace.

BLOWER MOTOR AND WHEEL

ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Blower access door switch opens 115-v power to control. No
component operation can occur unless switch is closed.
Caution must be taken when manually closing this switch for
service purposes.
NOTE: The blower wheel should not be dropped or bent as
balance will be affected.
The following steps should be performed by a qualified service
agency.
44
FILTER SIZE
FILTER
TYPE
Bottom Return
14 X 25 X 1 Cleanable*
16 X 25 X 1 Cleanable*
20 X 25 X 1 Cleanable*
24 X 25 X 1 Cleanable*