National Comfort Product 14208303/HS064, Инструкция по эксплуатации

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The ignitor assembly may be removed and cleaned using 6.
emery cloth. The spark gap should be set at 1/8”.
The venter motor bearings are permanently lubricated. 7.
Lubrication of the motor is not recommended.
Burner Orifice:
This device generally does not need cleaning and only needs to
be changed when a change of gas is involved. The orifice sizes
that are used with natural or L.P. gas are shown on the rating
plate. Orifices and labels are available from National Comfort
Products when the gas is being field converted to a different gas
than shown on the rating plate and label. It is also necessary
to reset the combination gas valve to the proper outlet pressure
shown on the rating plate. To prevent dropping the orifice into
the burner housing, temporarily place something the size of a
credit card across the venturi. Be careful not to damage the
venturi tube and/or the bracket.
Burner Service:
The need to disassemble and clean the burner assembly is
indicated when there is an accumulation of dirt, dust or lint in the
burner/control compartment. After cleaning the compartment,
remove the burner as described below:
Shut the gas supply off ahead of the combination valve. 1.
Turn off the electric supply. 2.
Remove the entire upper access panel to expose the heat 3.
exchanger section and the burner/control compartment.
Carefully loosen and remove the gas supply tube. 4.
Mark and disconnect the pressure switch wires. Disconnect 5.
the tubing and remove the pressure switch.
Locate the secondary air shield end cap. Remove the 6.
four screws holding it to the air shield and remove the end
cap.
Locate the upper burner brackets (one on each side). 7.
Remove the two screws (one on each side) that attach the
burner assembly to the secondary air shield assembly.
Tilt the burner assembly slightly and lift it free from the 8.
retaining track under the burner assembly. Remove the
burner assembly from the cabinet.
If the Comfort Pack is installed so that supply ducts carry 11.
air circulated by the furnace to areas outside the space
containing the furnace, the return air shall also be handled
by a duct(s) sealed to the furnace casing and terminating
outside the space containing the furnace. The supply air
duct should be equipped with a removable inspection panel
to allow for future inspections of the heat exchanger.
The Comfort Pack unit contains a 16” x 25” x 1” air filter 12.
located on the cooling chassis. Replacement of this filter
with an equivalent type is necessary to maintain the perfor-
mance of the furnace. The condition of the filter should be
checked at least monthly. The air filter may be accessed
by shutting off the unit and removing the lower access
panel. The air filter may be removed by sliding it out of the
filter holders. The unit should not be operated without the
filter and lower access panel in place.
The installation is to be adjusted to obtain a temperature 13.
rise within the range(s) specified on the appliance rating
plate.
Warning: Power must be disconnected before servicing .
The air filter located on the cooling chassis should be maintained
regularly. It should be checked at least monthly. Longer
intervals between servicing may be justified depending upon the
hours of unit operation and the cleanliness of the environment.
A dirty air filter can adversely affect both heating and cooling
operations, reduce heat exchanger life and increase energy
usage.
Caution: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper and
dangerous operation .
The furnace is designed to operate efficiently for many heating
seasons with minimal servicing. The following procedures
should be done on an annual basis, more often if the unit is in
a dusty environment:
Clean all dirt, lint and grease from the combustion air 1.
openings and venter motor. If an accumulation of dirt, dust
or lint is found in the burner/control compartment, it will be
necessary to clean the compartment and to provide “burner
service” as outlined below.
Inspect the heat exchanger. If the supply air is ducted, 2.
remove the inspection panel from the duct to observe the
heat exchanger. Clean if necessary. Check for cracks
or holes. Replace the heat exchanger if any cracks or
holes are found. Do not attempt to repair a damaged heat
exchanger. Also, refer to “burner service” for additional
information on inspecting the heat exchanger.
Check the burner for scale, dust or lint accumulation. 3.
Clean if needed.
Check the vent system for soundness. Replace any parts 4.
that do not appear sound.
Check the wiring for any damage and replace if 5.
necessary.
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Furnace Service