Filters
This unit is not equipped with a filter or rack. A
A filter must be in place any time the unit is operating.
Seasonal Inspections
A qualified service technician should inspect the complete system each season (heating and cooling). The following maintenance procedures should only be conducted by a qualified service technician. Do not attempt to service the unit in any way.
Venting System
WARNING
Asphyxiation Hazard
The exhaust vent for this furnace must be securely connected to the furnace flue collar at all times.
For your safety and to fulfill the terms of the limited warranty, a qualified service technician must annual3 ly inspect this furnace and its vent system.
Annually (before heating season) inspect furnace venting system, vent cap, heat exchanger and burners for corro- sion, deterioration, or deposits of debris. Remove any ob- structions.
Inspect the furnace venting system to make sure it is in place, physically sound and without holes, corrosion, or blockage. The vent connector must be correctly posi- tioned and sloped upward. The vent connector must be physically sound, without holes or excessive corrosion.
Inspect the furnace return air duct connection. The duct must be sealed to the furnace and it must terminate outside the space containing the furnace.
Inspect the physical support of the furnace to guarantee that it is sound. The support must not sag and must not have cracks or gaps around the base of the furnace. There must be a seal between the furnace base and the support. During a seasonal check, the service technician will in- spect the indoor blower and the burner flames along with the venting system.
Blower
Check blower wheel for any debris and clean it, if neces- sary. The blower motor is
Burner Flame
CAUTION
To ensure proper operation, a qualified technician should annually check the burner flame.
Service Reminder
Call your Lennox service technician if the unit will not oper- ate. Before calling, always check the following to be sure service is required.
1 - Check that electrical disconnect switches are ON.
2 - Check room thermostat for proper setting.
3 - Replace any blown fuses or reset circuit breakers. 4 - Gas valve should be ON.
5 - Check air filter. Dirty filter limits air flow.
6 - Is gas turned on at meter?
7 - Is manual main
Record the model and serial number of the furnace. These numbers are on the unit nameplate, which is located below the burners.
Serial Number ________________________________
Model Number ________________________________
Safety Precautions
If you discover any of the following, shut down your unit and contact a Lennox dealer for an inspection by a qualified technician.
D If you repeatedly hear any new or unfamiliar sounds while your unit is operating, there may be a problem. For example, poorly performing burners can produce unfa- miliar noises.
DIf you smell any unusual odors, your unit may be operat- ing improperly. For example, units can give off unfamil- iar odors if components are required to operate in ab- normal conditions.
DLook for visible signs of a malfunctioning unit. Examples include unusual amounts of condensate on windows in- side your house, visibly burnt components or unusual dirt or rust accumulations on the vent pipe or in the unit.
DIf you experience headache, nausea, fatigue, or dizzi- ness, the cause could be exposure to carbon monoxide gas. This is often misdiagnosed as the flu because symptoms are similar. If you suffer from
Your vigilance may pay off in early detection of a problem before either personal injury or property damage occurs. Do not hesitate to contact a qualified service technician as an investment in your well being.
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