Maintenance; Service Reminder - Lennox EL296DFV SERIES User's Information Manual

CAUTION
Do not set thermostat below 60°F (16°C) in heating
mode. Setting thermostat below 60°F (16°C) reduces
the number of heating cycles. Damage to the unit
may occur that is not covered by the warranty.
Filters
All EL296DFV filters are installed external to the unit. Fil­
ters should be inspected monthly. Clean or replace the fil­
ter(s) when necessary to ensure proper furnace operation.
A filter must be in place when the unit is operating. See
table 1 for recommended filter sizes.
NOTE - Use replacement filters that are similar in size and
efficiency ratings to those originally provided by the in­
stalling contractor. Use of replacement filters with higher fil­
tration ratings may restrict air flow to the furnace. This may
result in reduced unit efficiency, as well as premature blow­
er motor failure.
A filter must be in place when the unit is operating.
TABLE 1
Furnace
Cabinet Width
B Cabinet (17-1/2")
C Cabinet (21-1/2")

Maintenance

A licensed professional service technician (or equivalent)
should inspect the complete system each season (heating
and cooling). The following maintenance procedures
should only be conducted by a licensed professional ser­
vice technician (or equivalent). 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 maintenance could result in dangerous
operation, serious injury, death, or property damage.
Before performing maintenance disconnect all elec­
trical power to furnace.
CAUTION
To ensure proper operation, a licensed professional
service technician (or equivalent) should check the
burner flame and conduct a combustion analysis
annually.
Filter Size
16 x 25 x 1 (1)
Page 5
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 for obvious signs of deterioration.
Inspect the furnace venting system to make sure it is in
place, physically sound, and without holes, corrosion, or
blockage.
Vent pipe must be clear and free of obstructions and must
slope upward away from the furnace.
Inspect the 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 the condensate drain and trap for leaks and cracks.
The drain and trap must also be cleaned and the trap must
be filled with water.
During a seasonal check the service technician will con­
duct a combustion analysis. The technician will also in­
spect the indoor blower, burner flames, electrical connec­
tions and the venting system.
Blower
Check the blower wheel for debris and clean if necessary.
The blower motors are prelubricated for extended bearing
life. No further lubrication is needed.
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 inju­
ry or death.
Electrical
1 - Check all wiring for loose connections.
2 - Check for the correct voltage at the furnace (furnace
operating).
3 - Check amp-draw on the blower motor.
Motor Nameplate__________Actual__________

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 will limit air flow.
6 - Is gas turned on at meter?