Page 16
504953M 03/06
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
steel and aluminum parts and diminish performance
and longevity of the unit.
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).
Thermostat Operation
Thermostat operations vary from one thermostat to anoth-
er. The following provides general operation procedures.
Refer to the user’s information manual provided with your
thermostat for specific operation details.
Temperature Setting Levers
Set the lever or dial to the desired temperature setpoints
for both heating and cooling. Avoid frequent temperature
adjustment; turning the unit offthen back onbefore
pressures can equalize will put unusual stress on the unit’s
compressor.
Fan Switch
In AUTO or INT (intermittent) mode, the blower operates
only when the thermostat calls for heating or cooling. This
mode is generally preferred when humidity control is a
priority. The ON or CONT mode provides continuous in-
door blower operation, regardless of whether the com-
pressor or furnace is operating. This mode is required
when constant air circulation or filtering is desired.
System Switch
Set the system switch for heating, cooling or auto opera-
tion. The auto mode allows the system to automatically
switch from heating mode to cooling mode to maintain
predetermined comfort settings.
Temperature Indicator
The temperature indicator displays the actual room
temperature.
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 user’s information
manual provided with your thermostat for detailed pro-
gramming and operation details.
Preservice Check
If your system fails to operate, check the following before
calling for service:
Make sure all electrical disconnect switches are ON.
Make sure the room thermostat Temperature Selector
and System Switch (Heat, Cool, Auto) are properly
set.
Check for and replace any blown fuses, or reset any
tripped circuit breakers.
Make sure unit access panels are in place.
Make sure air filter is clean.
Write down the unit model number and have it handy
before calling.
HSXA16 Start−Up & Performance Check List
Job Name
Job no.
Date
Job Location
City
State
Installer
City
State
Unit Model No.
Serial No.
Service Technician
Nameplate Voltage
Amps: 1st stage
2nd stage
Min. Circuit Ampacity
Cmprsr amps: 1st stage
2nd stage
Maximum Overcurrent Protection
Electrical Connections Tight?
Indoor Filter clean?
Supply Voltage (Unit Off)
Indoor Blower RPM
S.P. Drop Over Indoor (Dry)
Outdoor Coil Entering Air Temp.
Liquid Pressure 1st stage
2nd stage
Refrigerant Charge Checked?
Vapor Pressure 1st stage
2nd stage
Refrigerant Lines:
Leak Checked?
Properly Insulated?
Outdoor Fan Checked?
Service Valves:
Fully Opened?
Caps Tight?
Thermostat
Voltage With Compressor Operating
Calibrated?
Properly Set?
Level?
