World Marketing of America KOZY-WORLD KWN121 - Manual (Page 13)

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INSPECTING BURNER
Figure 23 - Correct Pilot Flame
Pattern
Figure 24 - Incorrect Pilot Flame
Pattern
Figure 26 - Incorrect Burner Flame
Pattern
Figure 25 - Correct Burner Flame
Pattern
ODS/PILOT AND BURNER
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Use a vacuum cleaner, pres-
surized air, or a small, soft
bristled brush to clean.
CLEANING BURNER
PILOT AIR INLET HOLE
We recommend that you clean the
unit every 2,500 hours of operation
or every three months.
We also recommend that you keep
the burner tube and pilot assembly
clean and free of dust and dirt. To
clean these parts we recommend
using compressed air no greater
than 30 PSl. Your local computer
store, hardware store. or home cen-
ter may carry compressed air in a
can. You can use a vacuum cleaner
in the blow position. If using com-
pressed air in a can, please follow
the directions on the can. If you don’t
follow directions on the can, you
could damage the pilot assembly.
1. Shut off the unit, including the
pilot. Allow the unit to cool for
at least thirty minutes.
2. Inspect burner, and pilot for dust
and dirt.
3. Blow air through the ports/slots
and holes in the bumer.
Also clean the pilot assembly. A
yellow tip on the pilot flame indi-
cates dust and dirt in the pilot
assembly. There is a small pilot air
inlet hole about two inches from
where the pilot flame comes out of
the pilot assembly (see Figure 27).
W ith the unit off , lightly blow air
through the air inlet hole. You may
blow through a drinking straw if
comp ressed air is not available.
Figure 27 - Pilot Air Inlet Hole
CABINET
Air Passageways
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Use a vacuum cleaner or
pressurized air to clean.
Exterior
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Use a soft cloth dampened with
a mild soap and water mixture.
Wipe the cabinet to remove dust.
Check pilot flame pattern and
burner flame pattern often.
PILOT FLAME PATTERN
Figure 23 shows a correct pilot
flame pattern. Figure 24 shows an
incorrect pilot flame pattern. The
incorrect pilot flame is not touching
thermocouple. This will cause the
thermocouple to cool. When the
thermocouple cools, the heater will
shut down. If pilot flame pattern is
incorrect, as shown in Figure 24.
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turn heater off (see To Turn Off
Gas to Appliance. pages 11,12
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see Troubleshooting. pages 14
through 16.
WARNING: turn off heater
and let cool before cleaning.
CAUTION: you must keep control
areas, burner, and circulating air
passageways of heater clean. In-
spect these areas of heater before
each use. Have heater inspected
yearly by a qualified service person.
Heater may need more frequent
cleaning due to excessive lint from
carpeting, bedding material, pet hair,
etc.
CLEANING AND
MAINTENANCE
BURNER FLAME PATTERN
Figure 25 shows a correct burner
flame pattern. Figure 26 shows an
incorrect burner flame pattern.
If burner flame pattern is incorect, as
shown in Figure 26
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turn heater off(see To Turn Off Gas
to Appliance pages 11&12)
l see Troubleshooting, pages 14
through 16)
OPERATING HEATER
Continued
1. Remove lower front panel (see
Figure 7 page 7).
2. Follow steps through 5 under
Lighting Instructions on page12.
3. With control knob pressed in,
strike match. Hold match to
pilot until pilot lights.
4. Keep control knob pressed in
for 30 seconds after lighting pilot.
After 30 seconds, release control
knob.Follow step 8 under Lighting
Instuctions on page 12.
5. Replace lower front panel.
n MANUAL LIGHTING n
PROCEDURE