User manual
5
MAINTENANCE INFORMATION
SYSTEM MAINTENANCE
CAUTION:
Proper maintenance is most important to achieve the best
performance from the appliance and should be performed by
aqualiedservicetechnicianatleastonceayear.Followthe
maintenance schedule and the instructions below for years of
safe, trouble free operation.
• Annuallyinspectthephysicalsupportoftheunittoensure
that it is physically sound without sagging, cracks, gaps,
etc., around the base so as to provide a seal between the
support and the base.
• Annuallyinspectthereturn-airconnectiontoensurethat
it is physically sound and is still sealed to the casing of
the unit. Also inspect the unit, ductwork, and vent system
for signs of physical deterioration.
• Alwaysreplacethedoorsontheunitafterservicing.Do
not operate the unit without all doors and covers in place.
Avoid operating the unit when windows and doors are
open.
• RefertotheMaintenanceSchedule(Table1,page8)for
recommended maintenance information.
CAUTION:
• Removeanyleavesandgrassclippingsfromtheoutdoor
coil.
. Check for and remove any obstructions
such as twigs, sticks, etc.
• Clean the blower compartment regularly during the
heating and cooling seasons to remove any dust that may
have accumulated in the compartment or on the blower
and motor. Buildup of dust on the blower and motor
can create excessive loads on the motor resulting in
higher than normal operating temperatures and possible
shortened service life.
WARNING:
Thisunitisnotsuppliedwithairlter(s)andhasnomeansfor
accommodatinginternalairlter(s).Theinstallerisresponsible
for installing a filtration system into the return air duct of this
system.Thelter(s)ofthissystemshouldbecheckedatmonthly.
It is very important to replace or clean the filter(s) installed in
the return air duct of this system. A clogged filter could cause
airflow related problems and reduce the overall efficiency of
your unit. Depending upon which type of filter was installed with
your unit, clean (permanent) or replace (disposable) filter(s)
of your system at the beginning of every heating season, the
beginning of every cooling season, and when an accumulation
of dust and dirt are visible on the filter. IMPORTANT: Replace
disposable filter(s) installed in your system only with the same
size dimensional filters that are being replaced. Clean permanent
filter(s) as described by the manufacturer.
CAUTION:
Check the burner flames at the start of every heating season.
Set the thermostat above the room temperature. Remove the
control access panel to the unit and visually inspect the burner
assembly to make sure that the flame is drawn directly into the
centeroftheheatexchangertube(SeeFigure2).Inaproperly
adjusted burner assembly, the flame bends up and to the left
at the end of the heat exchanger tube, and the end of the flame
willbeoutofsightaroundthebend.Theamecolorshouldbe
blue, however some light yellow streaks may occur on the outer
portions of the flame.