Indoor Coil; Indoor Unit - Lennox 14HPX-018 Installation Instructions Manual

INDOOR COIL
1. Cleancoilifnecessary.
2, Check connecting lines, j ointsandcoilforevidence o f
oil leaks,
3. Check condensate l ineandcleanif necessary,
INDOOR UNIT
1. Cleanorchange filters.
2, Lennox b lower motors a reprelubricated andpermanent-
ly sealed. Nomorelubrication is needed.
3, Adjust b lower s peed forcooling, Measure t hepressure
dropoverthecoiltodetermine thecorrect blower C FM
Refer t otheunit i nformation service m anual forpressure
droptables andprocedure.
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
3, Many indoor units are equipped with reusable foam fil-
ters, These filters can be cleaned with a mild soap and
water solution. Rinse the filter thoroughly and let it dry
completely before it is returned to the unit or grille,
NOTE - The filter and all access panels must be in
place any time the unit is in operation.
4, Some systems are equipped with an electronic air
cleaner, designed to remove the majority of airborne
particles from the air passing through the cleaner. If
your system is so equipped, ask your dealer for main-
tenance instructions.
5, Inspect and clean indoor coil. The indoor evaporator
coil is equipped with a drain pan to collect condensate
formed as your system removes humidity from the in-
side air. Have your dealer show you the location of the
drain line and how to check for obstructions. (This
would also apply to an auxiliary drain, if installed,)
A IMPORTANT
Refer to the Engineering Handbook for optional accesso-
ries that may apply to this unit, The following may or may
not apply:
• Loss of Charge Kit
• Compressor Monitor
• Compressor Crankcase Heater
• Hail Guards
• Mounting Bases
• Stand-off Kit
• Sound Cover
• Low Ambient Kit
• Monitor Kit
• Mild Weather Kit
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.
1, Ask your Lennox dealer to show you where your indoor
unit's 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,
2, Replace disposable filters with a filter of the same type
and size,
NOTE - If you are unsure about the filter you need for
your system, call your Lennox dealer for assistance.
A IMPORTANT
6, Inspect and clean outdoor coil:
• Make sure no obstructions restrict airflow to the
outdoor unit. Leaves, trash or shrubs crowding the
unit cause the outdoor unit to work harder and use
more energy. Keep shrubbery trimmed away from
the unit and periodically check for debris which
collects around the unit,
• The outdoor coil may require frequent cleaning
(depending on environmental conditions). Clean
the outdoor coils with an unpressurized water
hose to remove surface contaminants and debris,
• If necessary, clean the outdoor coil more frequent-
ly, especially if it is exposed to substances which
are corrosive or which block airflow across the coil
(ie, pet urine, cottonwood seeds, etc,),
HEAT PUMP OPERATION
Your new Lennox heat pump has several characteristics
that you should be aware of:
• Heat pumps satisfy heating demand by delivering
large amounts of warm air into the living space, This
is quite different from gas- or oil4ired furnaces or an
electric furnace which deliver lower volumes of consid-
erably hotter air to heat the space,
• Do not be alarmed if you notice frost on the outdoor coil
in the winter months. Frost develops on the outdoor
coil during the heating cycle when temperatures are
below 45°F (7°C). An electronic control activates a de-
frost cycle lasting 5 to 15 minutes at preset intervals
to clear the outdoor coil of the frost.
• During the defrost cycle, you may notice steam rising
from the outdoor unit. This is a normal occurrence. The
thermostat may engage auxiliary heat during the de-
frost cycle to satisfy a heating demand; however, the
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14HPX SERIES