Desa BVDR18 - Manual (Page 11)

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INSTALLATION
Continued
Changing Pilot Orifice
The pilot is provided with a natural gas ori-
fice installed. For propane/LP gas you must
remove it and replace it with an propane/LP
orifice. The hardware kit contains an pro-
pane/LP orifice with a red stripe for converting
the pilot.
1. Gently loosen and remove the pilot line con-
nection from the bracket (see Figure 16).
2. Replace the injector with the propane/
LP pilot injector with the red stripe (see
Figure 16).
3. Replace and tighten the pilot line to the
bracket.
4. Continue with step 3 under Natural Gas
Installation, page 10.
Figure 14 - Burner Inlet Fittings with
Injectors
NATURAL
GAS
FITTING PROPANE/LP
GAS FITTING
Injector
for Natural
Gas
Injector for
Propane/LP
Gas
Burner Inlet Fitting
1. Remove burner inlet fitting from burner
pan assembly. DO NOT remove orifice
from this fitting. The propane/LP burner
inlet fitting is included in the hardware kit
(see Figure 14).
2. Be sure to use correct orifice for your ap-
pliance. The hardware kit included with
this appliance contains two orifices with
a cone-like shape. If you have an 18" set,
orifice for burner inlet fitting is red; for a 30"
set, it is black. If you have a 24" log set,
orifice is already installed inside fitting.
3. For an 18" or 30" set, use a 10 mm socket
or nut driver to remove orifice from pro-
pane/LP burner inlet fitting. Choose cor-
rect orifice for your log set size and install
in place of orifice you just removed.
4. Using thread sealant (resistant to action
of propane/LP gas) on larger end of fitting,
screw burner inlet fitting through hole
and into burner manifold, see Figure 15.
Tighten using a wrench.
5 . Follow steps 1 through 12 under Natural
Gas Installation, page 9.
Figure 15 - Remove Burner Inlet FItting
Burner Inlet Fitting
for Natural Gas
Figure 16 - Installing Propane/LP Pilot
Orifice
Pilot Orifice
Pilot Flow Adjustment
After installation is complete and the unit has
been ignited, it may be necessary to adjust
the pilot. Use a small flat-head screwdriver to
turn the flow adjustment screw on the manual
control valve (see Figure 17). Turn the screw
counterclockwise to allow more gas to flow
or clockwise to restrict gas flow. Be careful
to limit the turns to 2
1 /
2
from the fully closed
position. Further turning can result in gas
leaking at the adjustment screw and the pilot
flame size will diminish. The proper pilot flow
will result in a strong blue flame between 1/2"
and 1" long.
Figure 17 - Piliot Flow Adjustment Screw
Pilot Flow
Adjustment Screw