Homeowner Information; Preservice Check; Professional Maintenance - Lennox iComfort Elite XCZ20 Installation Instructions Manual

Homeowner Information

CAUTION
Before attempting to perform any service or mainte­
nance, turn the electrical power to unit OFF at dis­
connect switch.
In order to ensure peak performance, your system must be
properly maintained. Clogged filters and blocked airflow
prevent your unit from operating at its most efficient level.
The system should be inspected and serviced before each
cooling season by a licensed professional HVAC service
technician (or equivalent).
Homeowner Maintenance
The following maintenance may be performed by the
homeowner.
S Contact a licensed professional HVAC technician to
schedule a yearly inspection and maintenance appoint­
ment for your equipment.
S Check the indoor unit filter each month and replace the
filter, if necessary.
Have your Lennox dealer show you where your indoor
unit filter is located. It will be either at the indoor unit
(installed internal or external to the cabinet) or behind a
return air grille in the wall or ceiling. Check the filter
monthly and clean or replace it as needed.
Disposable filters should be replaced with a filter of the
same type and size.
S Check the indoor unit drain line for obstructions monthly
during the cooling season.
The indoor evaporator coil is equipped with a drain pan
to collect condensate formed as your system removes
humidity from the inside air. Have your dealer show you
the location of the drain line and how to check for ob­
structions. (This would also apply to an auxiliary drain,
if installed.)
S Check the area around the outdoor unit monthly and re­
move any obstructions that may restrict airflow to the
outdoor unit. This would include grass clippings, leaves,
or papers that may have settled around the unit.
S Trim shrubbery away from the unit and periodically
check for debris which collects around the unit.
S During the winter months, keep the snow level below the
louvered panels.
NOTE The filter and all access panels must be in place
-
any time the unit is in operation. If you are unsure about the
filter required for your system, call your Lennox dealer for
assistance.
IMPORTANT !
Sprinklers and soaker hoses should not be installed
where they could cause prolonged exposure to the
outdoor unit by treated water. Prolonged exposure
of the unit to treated water (i.e., sprinkler systems,
soakers, waste water, etc.) will corrode the surface
of steel and aluminum parts, diminish performance
and affect longevity of the unit.
Thermostat Operation
See the S30 thermostat homeowner manual for instruc­
tions on how to operate your thermostat.
If your system fails to operate, check the following before
calling for service:
S
Verify room thermostat settings are correct.
S
Verify that all electrical disconnect switches are ON.
S
Check for any blown fuses or tripped circuit breakers.
S
Verify unit access panels are in place.
S
Verify air filter is clean.
S
If service is needed, locate and write down the unit
model number and have it handy before calling.

Professional Maintenance

Your heating and air conditioning system should be inspec­
ted and maintained yearly (before the start of the cooling
season) by a licensed professional HVAC technician. You
can expect the technician to check the following items.
These checks may only be conducted by a licensed
professional HVAC technician.
Outdoor Unit
A. Inspect component wiring for loose, worn or damaged
connections. Also check for any rubbing or pinching of
wires. Confirm proper voltage plus amperage outdoor
unit.
B. Check the cleanliness of outdoor fan and blade as­
semblies. Check condition of fan blades (cracks).
Clean or replace them, if necessary.
C. Inspect base pan drains for debris and clean as neces­
sary.
D. Inspect the condition of refrigerant piping and confirm
that pipes are not rubbing copper-to-copper. Also,
check the condition of the insulation on the refrigerant
lines. Repair, correct, or replace as necessary.
E. Test capacitor. Replace as necessary.
F. Inspect contactor contacts for pitting or burn marks.
Replace as necessary.
G. Check outdoor fan motor for worn bearings/bushings.
Replace as necessary.
H. Inspect and clean outdoor coils, if necessary and note
any damage to coils or signs of leakage.
Indoor Unit (Air Handler or Furnace)
A. Inspect component wiring for loose, worn or damaged
connections. Confirm proper voltage plus amperage
indoor unit.
B. Inspect and clean or replace air filters in indoor unit.
C. Check the cleanliness of indoor blower and clean
blower, if necessary.
D. Inspect the evaporator coil (Indoor) drain pans and
condensate drains for rust, debris, obstructions, leaks
or cracks.
Page 17

Preservice Check

XCZ20 SERIES