Lennox International Inc Air Conditioner HSXA15 User Manual

HSXa15  
Home Comfort Systems  
h o m e o w n e r ’ s m a n ua l  
 
HSXA15  
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 thor-  
oughly 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. LennoxQuality  
Dealer Standards program ensures that when you  
call your Lennox dealer, you can count on prompt,  
courteous and professional service.  
The filter and all access panels must be in place  
any time the unit is in operation.  
Your system may be equipped with an electronic air  
cleaner which will provide respiratory relief by re-  
moving up to 90 percent of all airborne particles  
which pass through it. If it is, ask your dealer to  
instruct you on its maintenance.  
Before the start of each heating and cooling sea-  
son, 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 sys-  
tem removes humidity from the inside air. Have  
your dealer show you where the main condensate  
drain (and auxiliary drain, if applicable) 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  
unrestricted  
airflow to the  
and the coils should be checked for leaks.  
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 may have  
collected around the unit.  
D Wiring should be checked for loose connections.  
D Voltage must be checked at the indoor and  
outdoor units (units operating).  
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.  
 
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 op-  
eration. The auto mode allows the system to automati-  
cally 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 frequent tempera-  
ture 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  
In AUTO or INT (intermittent) mode, the blower oper-  
ates only when the thermostat calls for heating or cool-  
ing. 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 filter-  
ing is desired.  
Programmable Thermostats  
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  
users 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  
Phone Number:  
selector is properly set.  
D Make sure the room thermostat system switch is  
Unit Model Number: HSXA15 –  
Installation Date:  
properly set.  
D Replace any blown fuses, or reset circuit  
breakers.  
D Make sure unit access panels are in place.  
D Make sure air filter is clean.  
D Locate unit model number and have it handy  
before calling.  
*P504500M*  
504,500M  
2002 Lennox Industries Inc., Dallas, TX  
Litho U.S.A.  
 
02/2002  

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