Maintenance - Lennox EL195UHE Series User's Information Manual

Filters
All EL195UHE filters are installed external to the unit. Fil-
ters should be inspected monthly. Clean or replace the
filter(s) when necessary to ensure proper furnace oper-
ation. 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
installing contractor. Use of replacement filters with higher
filtration ratings may restrict air flow to the furnace. This
may result in reduced unit efficiency, as well as premature
blower motor failure.
TABLE 1
Furnace
Cabinet Width
Side Return
17-1/2" 16 X 25 X 1 (1)
21" 16 X 25 X 1 (1)
24-1/2" 16 X 25 X 1 (1)

Maintenance

A licensed professional service technician (or equivalent)
should inspect the complete system each season (heat-
ing 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 servicing could result in dangerous
operation, serious injury, death, or property
damage. Before servicing, disconnect all
electrical power to furnace.
When servicing controls, label all wires prior
to disconnecting. Take care to reconnect
wires correctly. Verify proper operation after
servicing.
Venting System
WARNING
Asphyxiation Hazard
The exhaust vent for this furnace must be leak-free and
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 licensed professional service technician (or
equivalent) must annually inspect this furnace and its
vent system.
Filter Size
Bottom Return
16 X 25 X 1(1)
20 X 25 X 1 (1)
24 X 25 X 1 (1)
Page 5
Annually (before heating season) inspect furnace venting
system, vent cap, heat exchanger, and burners for cor-
rosion, deterioration, or deposits of debris. Remove any
obstructions.
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 door must be securely in place when the
blower and burners are operating. Gas fumes, which
could contain carbon monoxide, can be drawn into the
living space resulting in personal injury or death.
Burner Flame
CAUTION
To ensure proper operation, a licensed professional
service technician (or equivalent) should check the
burner flame and conduct a combustion analysis
annually.
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__________