25
Maintenance And Service
Kit Parts List for all S50I models:
1 - Orifice (NG:
#37) or (LP: #53)
1 - Pilot Orifice (LP orifice supplied with unit)
1 - Servo Regulator with Diaphram
1 - Conversion label
1 - Installation instruction sheet
Carefully inspect all parts supplied with this conversion kit. If any parts have been damaged or are missing,
contact your dealer, distributor or courier company to have them replaced before starting this installation.
Conversion Kit Installation:
1. Turn control knob on the gas valve to the “OFF” position and shut the gas supply off at the shut-off valve
upstream of the unit. CAUTION: The gas supply must be shut off prior to disconnecting the electrical
power and before proceeding with the conversion. Allow the valve and unit to cool down to room
temperature.
2. Remove the door frame and glass as shown in their respective sections on page 17 and page 18.
3. Carefully remove the log set.
4.
Remove the burner as shown in the
B
urner
r
eMoVaL
section on page 23
.
Figure 46: Pilot Orifice
5. Convert the pilot orifice:
a) Using a
7
/
16
” wrench, loosen the pilot head counter clockwise and remove
b) Remove the existing orifice and replace with the one supplied in the kit
(Figure 46)
c) Re-install the pilot head and tighten until it is back in the proper position
(Figure 47)
6. Convert the burner orifice:
a) Remove the main burner orifices with a 1/2” deep socket
b) Put a bead of pipe-thread sealant into the orifice mount. DO NOT OVER-
TIGHTEN
c) Install the new orifice.
7. Convert the SIT gas valve:
a)
Use a T-20 driver to remove the two screws that hold the servo regulator to
the gas valve and disconnect the wire harness from the IFC.
b) Remove the rubber regulator diaphragm that is situated between the servo
Figure 47: Proper Pilot
Position
regulator and the valve body. The new servo regulator already has this diaphragm installed.
c) Install the LP servo regulator, with the new longer T-20 screws included in the kit and connect the harness
to the IFC.
8. Reinstall the burner, burner platform, log set, glass, and door frame. Also refer to the
L
og
S
et
i
nStaLLation
section on page 52.
9. Reconnect
the main gas line if it was disconnected and open the shut-off valve at the gas line to the unit.
10. Reconnect the electrical power to the unit.
11.
Use a small brush to apply a warm soapy water solution to all gas connections (use a half dish soap and
half warm water). If a gas leak is present, bubbling will occur. Gas leaks can be repaired by using an
approved pipe thread sealant or approved Teflon tape. NEVER USE AN OPEN FLAME WHEN TESTING
FOR LEAKS.
