®
MDVFST
INSTALLATION INSTRUCTIONS
SIT Nova Millivolt Valve
Air Shutter | Orifice | Burner |
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FOR CONVERSION NATURAL TO PROPANE/LP
Continued
Conversion Screw 
ON
T
O
L
I
P
Firebox Bottom
Venturi
Tube
Burner Gas Line
The SIT Nova millivolt valve converts from natural gas to propane/LP gas with the re- versal of the conversion screw located on the stem in the top of the valve (see Figure 58). The valve is located in the bottom of the fireplace underneath the firebox.
Remove the conversion screw from the valve and rotate the screw 180 degrees. The screw is clearly marked as NG or LPG, insure that the LPG is facing outward. Tighten the screw fully but do not over tighten.
Position the hearth pan and the two side refractories back into position in the com- bustion chamber and fasten the burner back into position with the two screws.
Carefully position the grate and logs back into position (see Installing Log Set, page 17). Be careful not to alter the pilot or burner location.
Close the glass door, making certain the door is fully sealed.
Replace the louvers by depressing the latches and inserting the pins into the mating holes on the front face.
The conversion from natural gas to propane/ LP is now complete.
Refer to Lighting Instructions on page 19.
OFF
Stem
Top
Figure 58 - Valve
ADJUSTING AIR SHUTTER
The air shutter, located at the underside of the main burner (see Figure 59), has been factory preset to the proper
Figure 59 - Connecting Venturi and Orifice
CORRECT |
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| Long, Blue Flame |
INCORRECT | with Yellow Tips |
| |
CLOSE |
|
SHUTTER | Short, Sharp, |
| Blowing Flame |
INCORRECT |
|
OPEN | Long, Uneven, |
SHUTTER | |
| Yellow Flame |
Figure 60 - Burner Flame Patterns
22 | 106442 |
