Lennox EL16XC1-018-230 Installation Instructions Manual page 15

Thermostat Operation
See the thermostat owner's manual for instructions on how
to operate your thermostat.
Preservice Check
If your system fails to operate, check the following before
calling for service:
Verify room thermostat settings are correct.
●
Verify that all electrical disconnect switches are ON.
●
Check for any blown fuses or tripped circuit breakers.
●
Verify unit access panels are in place.
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Verify air filter is clean.
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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 twice each year (before the start of the
heating and cooling seasons) by a licensed professional
HVAC technician. You can expect the technician to check
the following items. These checks may only be conduc­
ted by a licensed professional HVAC technician.
Outdoor Unit
1 - Inspect component wiring for loose, worn or damaged
connections. Also check for any rubbing or pinching of
wires. Confirm proper voltage plus amperage for out­
door unit.
2 - Check the cleanliness of outdoor fan and blade assem­
blies. Check condition of fan blades (cracks). Clean or
replace them, if necessary.
3 - Inspect base pan drains for debris and clean as neces­
sary.
4 - 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.
5 - Test capacitor. Replace as necessary.
6 - Inspect contactor contacts for pitting or burn marks.
Replace as necessary.
7 - Check outdoor fan motor for worn bearings/bushings.
Replace as necessary.
8 - Inspect and clean outdoor coils, if necessary and note
any damage to coils or signs of leakage.
Failure to follow instructions will cause damage to
the unit.
This unit is equipped with an aluminum coil. Alu­
minum coils may be damaged by exposure to solu­
tions with a pH below 5 or above 9. The aluminum
coil should be cleaned using potable water at a mod­
erate pressure (less than 50psi). If the coil cannot be
cleaned using water alone, Lennox recommends
use of a coil cleaner with a pH in the range of 5 to 9.
The coil must be rinsed thoroughly after cleaning.
In coastal areas, the coil should be cleaned with
potable water several times per year to avoid corro­
sive buildup (salt).
Indoor Unit (Air Handler or Furnace)
1 - Inspect component wiring for loose, worn or damaged
connections. Confirm proper voltage plus amperage
for indoor unit.
2 - Inspect and clean or replace air filters in indoor unit.
3 - Check the cleanliness of indoor blower and clean
blower, if necessary.
4 - Inspect the evaporator coil (Indoor) drain pans and
condensate drains for rust, debris, obstructions, leaks
or cracks. Pour water in pans to confirm proper drain­
age from the pan through to the outlet of the pipe.
Clean or replace as necessary.
5 - Inspect and clean evaporator (indoor) coil, if neces­
sary.
6 - Inspect the condition of the refrigerant lines and con­
firm that pipes are not rubbing copper-to-copper. Also,
ensure that refrigerant pipes are not being affected by
indoor air contamination. Check condition of insulation
on the refrigerant lines. Repair, correct, or replace as
necessary.
7 - Inspect the duct system for leaks or other problems.
Repair or replace as necessary.
8 - Check for bearing/bushing wear on indoor blower mo­
tor. Replace as necessary.
9 - Indoor unit inspections of gas- or oil-fired furnaces will
also include inspection and cleaning of the burners and
and a full inspection of the gas valve, heat exchanger
and flue (exhaust) system.
General System Test with System Operating
1 - Your technician should perform a general system test.
He will turn on the air conditioner to check operating
functions such as the start­up and shut­off operation.
He will also check for unusual noises or odors, and
measure indoor/outdoor temperatures and system
pressures as needed. He will check the refrigerant
charge per the charging sticker information on the out­
door unit.
2 - Verify that system total static pressure and airflow set­
tings are within specific operating parameters.
3 - Verify correct temperature drop across indoor coil.
Page 15
NOTICE !
EL16XC1 SERIES