F96VTN and G96VTN: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
60
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
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 maintenance to the
accessories as recommended in the accessory instructions.
Cleaning and/or Replacing Air Filter
The air filter type may vary depending on the application or orientation.
The filter is external to the furnace casing. There are no provisions for an
internal filter with this furnace. See “Filter Arrangement” under the
“Installation” section of this manual.
NOTE:
If the filter has an airflow direction arrow, the arrow must point
toward the blower.
To clean or replace filters, proceed as follows:
1. Turn off electrical supply to furnace.
2. Remove filter cabinet door.
3. Slide filter out of cabinet.
4. If equipped with permanent, washable 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.
5. If equipped with factory specified disposable media filter, replace
only with a factory specified media filter of the same size.
6. Slide filter into cabinet.
7. Replace filter cabinet door.
8. Turn on electrical supply to furnace.
A190094B
Fig. 65 – Blower Assembly
Blower Motor and Wheel Maintenance
To ensure long life, economy, and high efficiency, clean accumulated
dirt and grease from blower wheel and motor annually.
The inducer and blower motors are pre-lubricated and require no
additional lubrication. These motors can be identified by the absence of
oil ports on each end of the motor.
The following items should be performed by a qualified service
technician. Clean blower motor and wheel as follows:
1. Turn off electrical supply to furnace.
WARNING
!
CARBON MONOXIDE POISONING AND FIRE
HAZARD
Failure to follow this warning could result in personal injury, death
and/or property damage.
Never operate furnace without a filter or filtration device installed.
Never operate a furnace with filter or filtration device access doors
removed.
CAUTION
!
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.
WARNING
!
CARBON MONOXIDE POISONING AND FIRE
HAZARD
Failure to follow this warning could result in personal injury, death
and/or property damage.
Never operate furnace without a filter or filtration device installed.
Never operate a furnace with filter or filtration device access doors
removed.
WARNING
!
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury or death,
or property damage.
Before installing, modifying, or servicing system, main electrical
disconnect switch must be in the OFF position and install a lockout tag.
There may be more than one disconnect switch. Lock out and tag
switch with a suitable warning label. Verify proper operation after
servicing. Always reinstall access doors after completing service and
maintenance.
TORQUE THE BLOWER
WHEEL SET SCREW
160 LB-IN +/- 20 LB-IN.
BLOWER INLET
ORIFICE
BLOWER MOTOR
