39892-4-0719
Page 11
Piezo Pilot Ignitor Instructions
Depressing the ignitor button completely causes a spark to occur at
the pilot.
To light the pilot, it is important that the electrode be 1/8" (3mm) from
the pilot. The spark must occur at the point the pilot flame hits the
thermocouple.
On a new installation with air in the gas line, it is suggested that a
match be used. The match will light the pilot faster than the piezo
under this condition.
There will be a short blue inner flame with a much larger, lighter blue,
secondary flame. The burner flame may have a small yellow tip when
hot. Dust in the combustion air will produce an orange or red flame.
Do not mistake the orange or red flame for an improper yellow flame.
Clean main burner by applying compressed air into ports and throat
of main burner.
Figure 9
Attention:
BF-10W, natural or Propane Gas has a front and rear air
shutter.
BF-20W, Propane Gas only has a front air shutter.
BF-30W, Propane Gas only has a front air shutter.
air Shutter adjustment - See Figure 10
The air shutter on main burner is factory set at a 3/32" opening. If
yellow flames occur on main burner loosen 1/4" screw on air shutter
in order to increase air shutter opening. The slot on air shutter allows
the air opening to be increased or decreased. Tighten 1/4" screw on
air shutter after air shutter adjustment has been completed.
Figure 10
cleaning Main Burner orifice and Main Burner
1. Turn OFF gas supply to the heater.
2. Turn OFF electric supply to the heater if optional blower,
SRB-18TW or SRB-30TW is installed in heater.
3. Remove lower louver from casing assembly (2 screws).
4. Remove reflector from casing assembly (2 screws).
5. Inspect interior of casing assembly for accumulation of dust, lint
or spider webs. If necessary, clean interior of casing assembly
with a vacuum cleaner or apply air pressure. Do not damage any
components within casing assembly when you are cleaning.
6. Remove main burner orifice from orifice holder.
7. Apply air pressure through main burner orifice and orifice holder
to remove dust, lint or spider webs.
8. Apply air pressure into main burner to remove dust, lint or spider webs.
9. As parts are being replaced in reverse order, check for gas
leaks at all gas connections before lower louver is replaced
onto casing assembly.
MAIN BURNER FLAME CHARACTERISTICS
IMPORTANT SOOT PREvENTION STEPS
IMPORTANT NOTICE
InSTALLeR - SeRVICe PeRSOn - HOMeOWneR
SOOT MAY BE CREATED IF THE FOLLOWING DIRECTIONS ARE NOT FOLLOWED
A vent-free heater draws room air to support combustion. Lightweight
particles suspended in the air – including dust, carpet fibers, candle
or tobacco smoke, and pet hair – will be drawn toward the heater.
These can lead to soot build-up on the heater, and even walls of
the room. To prevent malfunctions and sooting, have your dealer
inspect and clean each year – before the heating season. If you
have pets or excessive dust, more frequent cleaning may be
necessary. See main burner flame characteristics section in this
manual.
1. ensure burner, venturi, and air shutter are free of dirt, lint,
animal hair (i.e. cat and dog) or anything that may block the
needed air flow.
2. Do not use scented air fresheners or candles while the
heater is in operation. They produce residue which may
cause soot.
3. Annual inspection and cleaning by your dealer or a qualified
service technician is recommended to prevent malfunction
and/or sooting.
WARNING
Do not allow fans to blow directly into or at the fireplace.
avoid any drafts that alter burner flame patterns. avoid any
drafts that alter burner flame patterns. Pay particular atten-
tion to ceiling fans and exhaust fans.
