Desa VANGUARD VVSA18M Owner's Operation And Installation Manual page 8

Propane/LP Gas Conversion
To convert to propane/LP gas, burner inlet
fitting and pilot orifice must be replaced
and regulator pressure must be reset. Pro-
pane/LP burner inlet fitting is supplied with
orifice installed. Propane/LP pilot orifice for
converting pilot is supplied and is marked
with a red stripe.
1. Remove control rod extension and piezo
ignitor by pulling gently.
2. Remove screws that attach pilot assembly
to valve cover and valve cover to burner
pan (see Figure 7).
3. Remove valve cover.
4. Using a wrench, remove gas control valve
and burner inlet fitting by turning counter-
clockwise (see Figure 8).
Screw
Ignitor
Control
Knob
Control Rod
Extension
Figure 7 - Removing/Installing Cover,
Control Knob, and Piezo Ignitor
Control Rod
Figure 8- Remove Burner Inlet Fitting
8
INSTALLATION
Continued
Thermocouple
Pilot
Valve Cover
Piezo
Ignitor
Burner Inlet
Fitting for
Natural Gas
Control
Valve
www.desatech.com
5. Remove burner inlet fitting from gas control
assembly (see Figure 8). DO NOT remove
orifice from this fitting. Propane/LP burner
inlet fitting is included in hardware kit (see
Figure 9).
6. Be sure to use correct orifice for your
appliance. Orifice kit included with this
appliance contains an orifice installed in
an air mixer fitting.
7. Using thread sealant (resistant to the ac-
tion of propane/LP gas) on smaller end of
fitting, screw burner inlet fitting into outlet
side of gas control (see Figure 8). Tighten
using a wrench.
8. Thread gas control valve and burner inlet
fitting into burner manifold (see Figure 8).
Use thread sealant on male threads of
burner inlet fitting. Secure with a wrench.
Make sure control rod is facing the front
(see Figure 8).
9. To adjust regulator pressure, remove
the brass hex plug from regulator (see
Figure 10).
10. Remove the plastic pressure button from
the brass plug (see Figure 10).
11. Reverse the plastic pressure button
and replace it into the brass plug (see
Figure 10).
Injector
for Natural
Gas
NATURAL
GAS
FITTING
Figure 9 - Burner Inlet Fittings with
Injectors
Regulator
Plastic Pressure
Button Positioned
for Natural Gas
Figure 10 - Adjusting Regulator Pressure
for Conversion
Injector for
Propane/LP
Gas
PROPANE/LP
GAS FITTING
Reversed
Plastic Pressure
Button for
Propane/LP
Conversion
Brass Plug
124184-01B