Vanguard SBJ18VNA Owner's Manual - Cleaning And Maintenance
www.desatech.com
114744-01F
21
CLEANING AND MAINTENANCE
Figure 28 - Injector Holder On Outlet
Burner Tube
Burner
Tube
Injector
Holder
Injector
Primary Air
Inlet Opening
(At bottom)
Ports/
Slots
Figure 29 - Pilot Inlet Air Hole (Your pilot
may vary from pilots shown)
Pilot Assembly
Pilot Air
Inlet Hole
Pilot Assembly
Pilot Air Inlet Hole
Natural
Propane/LP
4. Check injector holder located at the end
of burner tube 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 opening on
the injector holder.
6. In case any large clumps of dust have now
been pushed into the burner repeat steps
3 and 4.
Clean 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 29).
With the unit off, lightly blow air through the
air inlet hole in the same direction as gas
flow. You may blow through a drinking straw
if compressed air is not available.
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner and circu-
lating 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 clean-
ing due to excessive lint from
carpeting, pet hair, bedding
material, etc.
WARNING: Failure to keep
the primary air openings of the
burner clean may result in soot-
ing and property damage.
BURNER INjECTOR HOLDER AND
PILOT AIR INLET HOLE
The primary air inlet openings 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 inlet openings prior to each
heating season. Blocked air openings will
create soot. We recommend that you clean
the unit every three months during operation
and have heater inspected yearly by a quali-
fied 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 unit, including pilot. Allow unit to
cool for at least thirty minutes.
2. Inspect burner, pilot and primary air inlet
opening on injector holder for dust and
dirt (see Figure 28).
3. Blow air through ports/slots and holes in
the burner.