Filters
This unit is not equipped with a filter or rack. A
A filter must be in place any time the unit is operating.
Maintenance
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.
WARNING
ELECTRICAL SHOCK, FIRE,
OR EXPLOSION HAZARD.
Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage.
Improper servicing could result in dangerous opera0 tion, serious injury, death, or property damage. Before servicing, disconnect all electrical power to furnace.
When servicing controls, label all wires prior to dis0 connecting. Take care to reconnect wires correctly. Verify proper operation after servicing.
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 annual0 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 thefurnace 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
WARNING
The blower access panel must be securely in place when the blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal inju0 ry or death.
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 - Air filter should not be plugged, which wil limit 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 ________________________________
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