www.desatech.com
121880-01B
16
Figure 23 - Correct Burner Flame Pattern
Yellow
Tipping
Figure 24 - Incorrect Burner Flame Pattern
1/2 Glass
Height
Blue
Flame
1/2 Glass
Height
CleaNING
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep con-
trol areas, burner and circulating
air passageways of heater clean.
Inspect 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.
Figure 25 - Pilot Inlet Air (Propane/LP
Pilot Shown)
Pilot Assembly
Pilot Air Inlet
WARNING: Failure to keep
the primary air opening(s) of
the burner(s) clean may result in
sooting and property damage.
ODS/PILOT AND BURNER
Use a vacuum cleaner, pressurized air or
small, soft bristled brush to clean.
BURNER PILOT AIR INLET
The primary air inlet holes allow the proper
amount of air to mix with the gas. This pro
-
vides a clean burning flame. Keep these holes
clear of dust, dirt and lint. Clean these air inlet
holes prior to each heating season. Blocked
air holes will create soot. We recommend that
you clean the unit every three months during
operation and have heater inspected yearly
by a qualified service person.
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 PSI.
Your local computer store, hardware store or
home center may carry compressed air in a
can. If using compressed air in a can, please
follow the directions on the can. If you don’t
follow directions on the can, you could dam
-
age the pilot assembly.
1. Shut off the unit, including the pilot. Allow
the unit to cool for at least thirty minutes.
2. Inspect burner, pilot for dust and dirt.
3. Blow air through the ports/slots and holes
in the burner.
4. Never insert objects into the pilot tube.
Clean the pilot assembly also. A yellow tip on
the pilot flame indicates dust and dirt in the
pilot assembly. There is a small pilot air inlet
about 2" from where the pilot flame comes out
of the pilot assembly (see Figure 25). With
the unit off, lightly blow air through the air
inlet. You may blow through a drinking straw
if compressed air is not available.
INsPeCTING HeaTeR
Continued
CABINET
Air Passageways
Use pressurized air to clean.
Exterior
Use a soft cloth dampened with a mild soap and
water mixture. Wipe the cabinet to remove dust.
BURNER FLAME PATTERN
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles enter the
heater and burn causing brief
patches of orange flame.
Figure 23 shows a correct burner flame pattern.
Figure 24 shows an incorrect burner flame pat
-
tern. The incorrect burner flame pattern shows
yellow tipping of the flame. It also shows the
flame higher than 1/2 the glass panel height.
If burner flame pattern is incorrect, as shown
in Figure 24
• turn heater off (see
To Turn Off Gas To
Appliance
, page 15
• see
Troubleshooting
, page 17
