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U37 / F38-1 / F38-2
Installer Notice:
These instructions must be left
with the appliance.
Burner Orifice
918-031
04/21/06
Conversion Kit from NG to LPG Model #680-969
for Ultimate Gas Stove using SIT 820 NOVA Gas Valve
THIS CONVERSION MUST BE DONE BY A QUALIFIED GAS FITTER
IF IN DOUBT DO NOT DO THIS CONVERSION !!
Conversion Kit Contains:
Qty. Part # Description
1 910-018 SIT Conversion Kit-
50% Turndown LPG
1 910-037 LPG Injector (Pilot Orifice)
1 904-390 Burner Orifice #52
1 908-528 Red "LPG" label
1 918-590 Label "Converted to LPG"
1 918-031 Instruction Sheet
1 904-529 5/32" Allen Key
1) Shut off the gas supply.
2) Open the front door and carefully remove
the logs and lava rock.
3) Remove burner. See diagram below.
Pilot assembly is now accessible for
steps 4) to 9).
Note: Use a magnetic type screwdriver if
possible.
4) Remove and discard the 3 pressure reg-
ulator mounting screws (A), pressure
regulator tower (B) and diaphragm (C).
5) Insure that the rubber gasket (D) is prop-
erly positioned and install the new HI/LO
pressure regulator assembly to the valve
using the new screws (E) supplied with
the kit. Tighten screws securely.
6) Pull off the pilot cap to expose the pilot
orifice.
7) Unscrew the pilot orifice with the allen
key and replace with the LPG pilot orifice
in the kit.
8) Remove burner orifice with a 1/2" wrench
and discard. Use a wrench to hold on to
the elbow behind the orifice.
9) Reinstall new burner orifice LPG stamped
#52 and tighten.
10) Reverse steps 3) to 2).
11) Attach the Conversion label "This unit has
been converted to LPG" on top of the
Serial # decal.
12) Replace yellow "NG" label with red "LPG"
label
13) Check for gas leaks.
14) Check inlet and outlet pressures.
15) Check operation of flame control.
16) Check for proper flame appearance and
glow on logs.
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