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506326-01
Issue 0941
Filters
Cleaning the air filter:
Follow directions noted on the filter
and label attached to the access panel.
Cooling System
The refrigeration system normally requires no maintenance
since it is a closed, self-contained system. Periodic
maintenance is limited to:
•
Cleaning the air filter. Follow directions noted on the filter
and label attached to the access panel.
•
Cleaning the condenser coil if covered with any foreign
material, lint, leaves, or other obstructions.
The condensing coil should be cleaned at a minimum
once per year. In areas subject to high traffic or
environmental conditions which may contain chloride,
sulfites, dust, ammonia, etc., more frequent cleaning is
required.
MAINTENANCE
Heating System
Burners
The burners can be removed for cleaning or changing
orifices. To remove the burners:
1.
Disconnect electrical service and turn off gas to the
appliance.
2.
Disconnect the high voltage (ignitor) wire and the flame
sensor wire (S1) from the ignition control.
3.
Remove ignitor and flame sensor.
4.
Remove the four screws that mount the burner right side
plate (houses the ignitor/flame sensing rod).
5.
Carefully remove the burner right side plate.
6.
Burners are now exposed and can be individually removed
from assembly by removing the two screws that hold each
burner in the burner rack.
Burners can be cleaned using a bottle brush.
Orifices are threaded into the gas manifold and can be
removed by unscrewing.
When replacing the burner tray assembly, take care in
installing the flame sensor and ignitor rods back into the
burner plate. Reconnect the ignitor and flame sensor wires.
Heat Exchanger
The heat exchanger should be inspected periodically and
cleaned if necessary. If cleaning is necessary, use a stiff
brush with a wire handle to remove scale. While cleaning
the heat exchanger, the vent extension tube should also be
cleaned. Remove the four screws on the combustion blower
mounting plate and take out the blower. Use a brush to
clean the vent extension tube.
Disconnect all electrical power to the unit before
conducting any maintenance procedures. Failure to
disconnect the power could result in personal injury or
death.
WARNING
