HSXA19
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H O M E O W N E R ’ S M A N U A L
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HSXA19
W I T H R 4 1 0 A
R E F R I G E R A N T
Many indoor units are equipped with re-usable
foam filters. 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.
Lennox Dealers
Nobody knows more about the care and
operation of your new Lennox equipment than
your Lennox dealer. Your Lennox dealer is
your best choice for routine maintenance or
service. When you call your Lennox dealer,
you can count on prompt, courteous and pro-
fessional service.
The filter and all access panels must be in
place any time the unit is in operation.
Your system may be equipped with one or
more of Lennox’ indoor air quality products,
which further ensure your total comfort. If so,
ask your dealer to instruct you on the mainte-
nance of these products.
Before the start of each heating and cooling
season, the following service checks should
be performed by a qualified service
technician.
As always, electrical power to the unit
must be turned off prior to any unit
maintenance.
Your 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 where the main
condensate drain (and auxiliary drain, if appli-
cable) runs and how to check the drain for any
obstruction.
D The outdoor and indoor coils should be
inspected and cleaned. The outdoor coil
may be flushed with a water hose.
NOTE − 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 (e.g., pet urine,
cottonwood seeds, etc.)
It is also
very
important to
provide
D The refrigerant lines should be visually
inspected and the coils should be checked for
leaks.
unrestricted
airflow to
the outdoor
unit.
D Wiring should be checked for loose
Leaves,
connections.
trash or
D Voltage must be checked at the indoor and
shrubs
outdoor units (units operating).
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 may have
collected around the unit.
D The amp-draw at the outdoor fan motor and
indoor blower motor should be checked.
Values should be compared with those
given on unit nameplate.
D Indoor unit filters should be cleaned or
replaced.
D The refrigerant charge should be checked
and system pressures should be gauged.
D The condensate drain line should be
checked for free and unobstructed flow and
it should be cleaned, if necessary.
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THERMOSTAT OPERATION −− COMFORT IS AT YOUR FINGERTIPS
Though your thermostat may vary somewhat from
the description below, its operation will be similar.
System Switch
Set the system switch for heating, cooling or auto
operation. The auto mode allows the system to
automatically switch from heating mode to cooling
mode to maintain predetermined comfort settings.
Temperature Setting Levers
Set the lever or dial to the desired temperature
setpoints for both heating and cooling. Avoid fre-
quent temperature adjustment; turning the unit off
and back on before pressures equalize puts
stress on the unit compressor.
Temperature Indicator
The temperature indicator displays the actual
room temperature.
Fan Switch
Programmable Thermostats
In AUTO or INT (intermittent) mode, the blower
operates only when the thermostat calls for heat-
ing or cooling. This mode is generally preferred
when humidity control is a priority. The ON or
CONT mode provides continuous indoor blower
operation, regardless of whether the compressor
or furnace is operating. This mode is required
when constant air circulation or filtering is desired.
Your Lennox system may be controlled by a
programmable thermostat. These thermostats
provide the added feature of programmable time-
of-day setpoints for both heating and cooling.
Refer to the user’s information manual provided
with your particular thermostat for operation
details.
Please record the following information for
your convenience.
Before you call
If your system fails to operate, check the
following before calling for service:
Dealer Name:
Address:
D Check to see that all electrical disconnect
switches are ON.
D Make sure the room thermostat temperature
selector is properly set.
Phone Number:
D Make sure the room thermostat system
switch is properly set.
D Reset circuit breakers.
Unit Model Number: HSXA19 −
Installation Date:
D Make sure unit access panels are in place.
D Make sure air filter is clean.
D Locate unit model number before calling.
*P504960M*
504,960M
E2004 Lennox Industries Inc., Dallas, TX
Litho U.S.A.
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06/2004
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