www.desatech.com
123551-01D
21
WARNING: Failure to keep
the primary air opening(s) of
the burner(s) clean may result in
sooting and property damage.
BURNER INjECTOR HOLDERS AND
PILOT AIR INLET HOLES
The primary air inlet holes allow the proper
amount of air to mix with the gas. This provides
a clean burning flame. Keep these holes clear
of dust, dirt, lint and pet hair. Clean these air in
-
let 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
tubes and pilot assembly clean and free of
dust and dirt. To clean these parts we recom-
mend 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
damage the pilot assembly.
1. Shut off unit, including pilot. Allow unit to
cool for at least thirty minutes.
2. Inspect burners, pilot and primary air inlet
holes on injector holder for dust and dirt
(see Figures 29 or 30).
3. Blow air through the ports/slots and holes
in the burners.
4. Check injector holders located at the end
of burner tubes again. Remove any large
particles of dust, dirt, lint or pet hair with
a soft cloth or vacuum cleaner nozzle.
5. Blow air into the primary air holes on the
injector holders.
6. In case any large clumps of dust have now
been pushed into the burner repeat steps
3 and 4.
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 hole
about 2" from where the pilot flame comes out
of the pilot assembly (see Figure 31). With the
unit off, lightly blow air through the air inlet hole.
The access hole for propane/LP pilot is on the
front of the burner carriage as shown in Figure
31. The access hole for natural pilot is behind
the pilot bracket on the top of burner carriage
Figure 29 - Injector Holder On Outlet
Burner Tube - Rear Burner
Figure 30 - Injector Holder On Outlet
Burner Tubes - Front and Middle Burners
Ports/Slots
Injector
Holder
Access Hole
in Base
Primary
Air Inlet
Holes
Control Knob
Burner
Tube
Injector Holder
Primary Air
Inlet Holes
Access Hole
for Cleaning
Propane/LP Pilot
LOGS
• If you remove logs for cleaning, refer to
Install-
ing Logs
, page 16, to properly replace logs.
• Replace log(s) if broken or chipped (dime-
sized or larger).
Figure 31 - Cleaning Pilot Air Inlet Hole
(Your pilot may vary from pilots shown)
Pilot Air
Inlet Hole
Pilot
Assembly
Pilot Bracket
CLEANING AND MAINTENANCE
Continued
(see Figure 30). You may blow through a drink-
ing straw if compressed air is not available.
