Nordyne Single Package Gas Heating/Electric Cooling Unit User's Information Manual page 6

Regular Cleaning:
Remove any leaves and grass clippings from
the outdoor coil, being careful not to damage the
aluminum fins.
Check for any obstructions, such as twigs, sticks,
etc.
! CAUTION:
Do not strike any of the internal elec-
trical components while vacuuming.
Clean the blower compartment monthly during
the heating and cooling seasons to remove any
dirt and lint that may have accumulated in the
compartment or on the blower and motor.
Buildup of dirt and lint on the blower and motor
can create excessive loads on the motor result-
ing in higher than normal operating tempera-
tures and possible shortened service life.
Air Filters:
! WARNING:
Never operate the unit without a filter
in the return air system. Dust and lint
in the return air can build up on the
internal components, resulting in a
loss of efficiency, equipment dam-
age, and possible fire risk.
This unit is not supplied with air filter(s) and has
no means for accommodating internal air filter(s).
The installer is responsible for installing a filtra-
tion system into the return air duct of this sys-
tem. The filter(s) of this system should be
checked at least monthly.
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 effi-
ciency of your unit. Depending upon which type
of filter was installed with your unit, clean (per-
manent) or replace (disposable) filter(s) of your
system at the beginning of every heating sea-
6
son, 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 of your particular
permanent filter.
Motor Lubrication:
! WARNING:
Lubrication of the motors in this unit
is not required. Do not lubricate any
motor in this product.
The motors for the circulating air blower, out-
door fan, and combustion blower are pre-lubri-
cated at the factory. No further oiling is required
for the life of this product.
Burner Maintenance:
! CAUTION:
Some components in the burner ves-
tibule are at high temperatures while
the burners are operating. Use cau-
tion to avoid personal injury.
Check the burner flames at the start of every
heating season. Set the thermostat to a tem-
perature setting 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
center of the heat exchanger tube (See Figure
3). In a properly 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
will be out of sight around the bend. The flame
color should be blue, however some light yellow
streaks may occur on the outer portions of the
flame.
Refer to Table 1 for complete maintenance
schedule.