18
139760_A GF 500 DV Oct. 2017
7. CHANGE THE PILOT ORIFICE:
From within the firebox,
remove the Pilot Head by pulling it straight up from
the pilot base. See fig. 28.
Using the 4 mm allen wrench that is included with
the conversion kit, unscrew the pilot orifice (counter-
clockwise). Replace with the appropriate orifice:
# 51 for natural gas
#30 for propane gas
8.
Change the Burner Injectors.
See fig. 30. Using a 1/2”
open end wrench or deep-well socket remove both
burner injectors from the brass elbow housings and
replace with the appropriate injectors supplied in the kit.
Injectors are labelled: “L” = Left / “R”= Right.
9.
Baffle Conversion - Propane conversion only:
Remove two, 6 mm nuts to detach the steel baffle
assembly from the firebox. See figs. 31 - 32.
Once the assembly is out, loosen two sheet metal
screws to allow enough play for you to break off
both extension wings of the Secondary Baffle at the
perforations. See fig. 33.
Retighten those screws and re-install the modified
baffle assembly back into the firebox. See fig. 34.
10.
Replace the Burner.
Tilt the burner assembly downward
to engage the shutters with both injector assemblies.
Be sure the burner is pushed all the way back and
resecure the burner brackets to the firebox floor with
the original sheet metal screws.
Replace the brick panel support shelves
11.
Replace the Valve Regulator.
Using a Torx T-20
screwdriver, remove the screws from the front of the
regulator.
Remove the regulator components and
replace with the one from the conversion kit. See fig. 29.
12.
Install the identification labels
to the stove so that
they can be seen by any person who may be servicing
the stove.
Label A: apply to back of stove
Label B: apply to the rating plate attached to the back
of the stove.
Small Conversion Label: apply to valve.
13. Reassemble the stove, apply gas to the system and check
for leaks using a soapy water solution or digital gas
detector.
NEVER USE AN OPEN FLAME TO CHECK FOR GAS LEAKS.
14. Correct gas pressure is essential for efficient and safe
operation of this appliance. Use a manometer to check
pressures as specified in the Gas Pressure section of this
manual (page 21).
15.
Adjust the Air Shutters. Fig. 35
Replace the air shutter wingnuts and pull each air shutter
forward (toward you) to the fully OPEN position, then
adjust the inlet opening for the appropriate fuel: You will
need to position the shutters to provide a gas/air mixture
that will achieve the best flame picture with your particu-
lar installation.
Pushing the stems back will restrict air, while pulling
them forward (toward you) will open the shutter and
increase air. With some experimentation, you will
find the shutter position that works best for your
installation. Start at the following positions for the
appropriate fuel:
Propane - 1/8” (3 mm) open
Natural gas - 1/16” (1.5 mm) open
ALWAYS REFER TO THE LIGHTING INSTRUCTIONS ON
THE INSIDE BACK COVER OF THIS MANUAL WHEN
LIGHTING THE STOVE.
Figure 30.
Change the burner injector orifices.
Left Side:
Rear Burner
Injector
Right Side:
Front Burner
Injector
LP - 1.40mm
NG - 2.25mm
LP - 1.20mm
NG - #47
Pilot Head
Orifice
Retainer Clip
Pilot Base
Figure 28. Pilot orifice removal and replacement.
Figure 29. Regulator assembly.
Apply small
label here
Remove black
gasket
Regulator Tower
