BOTTOM RETURN FILTER INSTALLATION
REAR FILTER CLIP
| FURNACE | |
| BACK | |
SIDE FILTER CLIPS (2) | ||
| RETURN AIR OPENING | |
FURNACE | FURNACE | |
FRONT | ||
BASE BOTTOM | ||
| ||
Figure 4
4 - Clean filter with cold water and a mild soap. Direct water through filter in the opposite direction of air flow. Remove all soap residue.
5 - Allow filter to dry then spray with filter handicoater prior to reinstallation. Filter handicoater is available from your Lennox dealer as
6 - Place filter in bottom of blower compartment beneath rear filter clip. Press down on filter sides. Filter clips flex, allowing filter to snap into place.
7 - Replace blower access panel.
WARNING
Blower door must be securely in place when blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal injury or death.
Side Return Air Filter Installation (Figure 5) 1 - Turn off electric power to furnace.
2 - Locate the filter door of the filter rack assembly.
3 - Using the filter door pins, pull filter door, with filter at2 tached, out of filter rack assembly. Remove filter door from filter by pulling up on securing tabs.
4 - Clean filter with cold water and a mild soap. Direct water through filter in the opposite direction of air flow. Allow filter to dry, then spray with filter handi2 coater prior to reinstallation. Filter handicoater is available from your Lennox dealer as
5 - Position filter door on end of filter so that the thumb tab side of the filter door is away from the furnace. Check for correct air flow position. Squeeze thumb tabs to secure filter to door.
6 - Guide filter and filter door into the filter rack installed on side of furnace. Push door into filter rack until secure.
REMOVING / REPLACING FILTER DOOR
FILTER DOOR | TAB |
PIN |
|
FILTER DOOR | FILTER |
|
FILTER DOOR
PIN
TAB
Figure 5
Seasonal Inspections
A qualified service technician should inspect the com2 plete system each season (heating and cooling). The fol2 lowing maintenance procedures should be conducted by a qualified service technician. Do not attempt to service the unit in any way.
During a seasonal check the service technician will in2 spect the indoor blower, the burner flame and the venting system.
Venting System
Annually (before heating season) inspect furnace vent2 ing system, heat exchanger and burners for corrosion, deterioration, or deposits of debris. Remove any ob2 structions.
Inspect furnace venting system to make sure it is in place, physically sound, and without holes, corrosion, or block2 age. Vent connector must be in correct position, sloped upward and be physically sound without holes or exces2 sive corrosion.
Inspect furnace return air duct connection to ensure duct is sealed to the furnace and terminates outside the space containing the furnace.
Inspect the physical support of the furnace to guarantee that it is sound without sagging, cracks or gaps around base and it maintains seal between base and support.
Inspect and clean the condensate traps and drain.
Blower
Check and clean blower wheel for any debris. Blower mo2 tor is pre2lubricated for extended bearing life. No further lubrication is needed.
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