Page 25
Outdoor Coil
It may be necessary to flush the outdoor coil more fre
-
quently if it is exposed to substances which are corrosive
or which block airflow across the coil (e.g., pet urine, cot
-
tonwood seeds, fertilizers, fluids that may contain high
levels of corrosive chemicals such as salts)
•
Outdoor Coil – The outdoor coil may be flushed with a
water hose.
•
Outdoor Coil (Sea Coast) – Moist air in ocean locations
can carry salt, which is corrosive to most metal. Units
that are located near the ocean require frequent in-
spections and maintenance. These inspections will de-
termine the necessary need to wash the unit including
the outdoor coil. Consult your installing contractor for
proper intervals/procedures for your geographic area or
service contract.
Indoor Unit
1. Clean or change filters.
2. Lennox blower motors are prelubricated and perma
-
nently sealed. No more lubrication is needed.
3. Adjust blower speed for cooling. Measure the pressure
drop over the coil to determine the correct blower CFM.
Refer to the unit information service manual for pressure
drop tables and procedure.
4. Belt Drive Blowers - Check belt for wear and proper
tension.
5. Check all wiring for loose connections.
6. Check for correct voltage at unit. (blower operating)
7. Check amp draw on blower motor.
Motor Nameplate:_________ Actual:__________.
Indoor Coil
1 - Clean coil if necessary.
2 - Check connecting lines, joints and coil for evidence
of oil leaks.
3 - Check condensate line and clean if necessary.
HOMEOWNER
Cleaning of the outdoor unit's coil should be performed by
a trained service technician. Contact your dealer and set
up a schedule (preferably twice a year, but at least once a
year) to inspect and service your outdoor unit. The follow-
ing maintenance may be performed by the homeowner.
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
the steel and aluminum parts, diminish performance
and affect longevity of the unit.
IMPORTANT
After testing has been completed, properly reposition
test jumper across desired timing pins
Maintenance
DEALER
WARNING
Electric Shock Hazard. Can cause injury or
death. Unit must be properly grounded in
accordance with national and local codes.
Line voltage is present at all components
when unit is not in operation on units with
single-pole contactors. Disconnect all remote
electric power supplies before opening
access panel. Unit may have multiple power
supplies.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
Maintenance and service must be performed by a quali-
fied installer or service agency. At the beginning of each
cooling season, the system should be checked as follows:
Outdoor Unit
1 -
Clean and inspect outdoor coil (may be flushed with
a water hose). Ensure power is off before cleaning.
2 - Outdoor unit fan motor is pre-lubricated and sealed.
No further lubrication is needed.
3 - Visually inspect all connecting lines, joints and coils
for evidence of oil leaks.
4 - Check all wiring for loose connections.
5 - Check for correct voltage at unit (unit operating).
6 - Check amp draw on outdoor fan motor.
Motor Nameplate:_________ Actual:__________.
7 - Inspect drain holes in coil compartment base and
clean if necessary.
NOTE
–
If insufficient heating or cooling occurs, the
unit should be gauged and refrigerant charge should be
checked.
Содержание 16HPX Series
Страница 27: ...Page 27 Wiring and Sequence of Operation FIGURE 15 Typical Unit Wiring 024 036 and 048 Units...
Страница 28: ...Page 28 FIGURE 16 Typical Unit Wiring 060 Units...
Страница 29: ...Page 29 FIGURE 17 Typical Factory Wiring 024 036 and 048 Units...
Страница 30: ...Page 30 FIGURE 18 Typical Factory Wiring 060 Units...