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506470-01 Issue 1007
HOMEOWNER INFORMATION
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.
Ask your dealer to show you where the 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 in your home. 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. If you are unsure of the filter you need for
your system, contact your dealer.
Many indoor units are equipped with reusable foam filters.
These filters can be cleaned with a mild soap and water
solution. Rinse the filter thoroughly and let dry completely
before returning to unit or grille.
The filter and all access panels must be in place any
time the unit is in operation.
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 includes
an electronic air cleaner, ask your dealer for maintenance
instructions.
Inspect and clean indoor coil. The indoor evaporator coil is
equipped with a drain pan to collect condensate formed as
the system removes humidity from the inside air. Have your
dealer show you the location of the drain line and how to
check for obstructions. This also applies to an auxiliary drain,
if one is installed.
Inspect and clean outdoor coil:
Make sure no obstructions restrict airflow to the outdoor unit.
Leaves, trash, or shrubs crowding the unit can cause it 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 coil with an
unpressurized water hose to remove surface contaminants
and debris. It may be necessary to flush the outdoor coil
more frequently if it is exposed to substances which are
corrosive or which block airflow across the coil (such as pet
urine, cottonwood seeds, etc...).
Heat Pump Operation
Heat pump units have several characteristics 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-fired, oil-fired, or electric furnaces which
deliver lower volumes of considerably 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. An
electronic control activates a defrost cycle lasting 5 to 15
minutes at preset intervals to clear the outdoor coil of the
frost. A shift in sound type does occur during the defrost
mode.
During the defrost cycle, you may notice steam rising from
the unit. This is a normal occurrence. The thermostat may
engage auxiliary heat during the defrost cycle to satisfy a
heating demand. The unit will return to normal operation at
the conclusion of the defrost cycle.
In case of extended power outage....
If the outdoor temperature is below 50°F and power to the
outdoor unit has been interrupted for 6 hours or longer.
observe the following when restoring power to the heat pump
system.
Set the room thermostat selctor to the “Emergency Heat”
setting to obtain temporary heat for a minimum of 6 hours.
This will allow system refrigerant pressures and
temperatures enough time to return to a stabilized condition.
In the “Emergency Heat” mode, all heating demand is
satisfied by auxiliary heat; heat pump operation is locked
out. After a 6 hour “warmup” period, the thermostat can
then be switched to the “Heat” setting and normal heat
operation may resume.
Thermostat Operation
Though your thermostat may vary somewhat from the
description below, its operation will be similar.
Temperature Setting Levers
Most heat pump thermostats have two temperature selector
levers: one for heating and one for cooling. Set the levers
or dials to the desired temperature setpoints for both heating
and cooling. Avoid frequent temperature adjustment; turning
the unit off and back on before presssures equalize puts
stress on unit compressor.
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Turn all electric power to unit OFF at disconnect
switch(es) before performing any maintenance
operations on system. Unit may have multiple power
supplies. Electrical shock could cause personal injury
or death.
WARNING