3
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 7
Spring
Adjusting
Screw
Slotted
Cap
PSI
OFF
I
ON
CONTROL
IGNITE
Test
Port
Step 8. Refer to Figure 6 and replace the pilot
orifice as follows: Remove the ignitor assembly
retainer clip, and carefully remove the ignitor
assembly. Exercise extreme care to prevent
damage to or breakage of the ignitor assembly.
Remove the screw securing the pilot assembly
to its mounting bracket. Back off the flare nut
at the end of the pilot gas line to free the pilot
assembly from the gas line.
Remove the pilot orifice and replace it with
the one provided with this conversion kit.
Reinstall the pilot assembly by reversing the
steps detailed here.
When reinstalling the ignitor assembly, use
extreme care to prevent damage and break-
age. Do not apply any leverage to the ignitor
assembly while restoring the retainer clip to
its original position.
Figure 8
ALL FIXED SETTING SIT VALVES
Millivolt Appliances
Step 9. SIT Systems - Refer to Figure 1. Using
a Torx T20, or a flat screwdriver, remove and
discard the three pressure regulator mounting
screws. Remove the pressure regulator, spring,
poppet, diaphragm and bushing.
Discard all removed components. Ensure
the rubber gasket installed on the back of the
replacement pressure regulator is properly
positioned and install the new pressure regula-
tor using the new screws supplied with this kit.
Tighten screws to 25 In. lb. torque.
Step 10. Refer to Figure 3 and remove the
pilot hood assembly to access the hexed pilot
orifice. Using a (4mm) Allen wrench, remove
and replace the orifice with the one provided
with this kit. Figure 4 shows the pilot reas-
sembled, with proper flame. Figure 5 shows
a typical pilot to burner relationship.
Step 12. Refer to Figure 6 and replace the pilot
orifice as follows: Remove the ignitor assembly
retainer clip, and carefully remove the ignitor
assembly. Exercise extreme care to prevent
damage to or breakage of the ignitor assembly.
Remove the screw securing the pilot assembly
to its mounting bracket. Back off the flare nut
at the end of the pilot gas line to free the pilot
assembly from the gas line.
Remove the pilot orifice and replace it with
the one provided with this conversion kit.
Reinstall the pilot assembly by reversing the
steps detailed here.
When reinstalling the ignitor assembly, use
extreme care to prevent damage and break-
age. Do not apply any leverage to the ignitor
assembly while restoring the retainer clip to
its original position.
Figure 9
All Models
Step 13. Unscrew the orifice from the manifold
and replace it with the one provided with this
kit (Figure 9 ).
Step 14. Reassemble all removed components
by reversing the procedures outlined in the
preceding steps. Use pipe joint compound or
Teflon tape on all pipe fittings before installing
(ensure propane resistant compounds are used
in propane applications, do not use pipe joint
compounds on flare fittings). Adjust the air
shutter opening on the burner tube, refer to
Note on page 1.
Step 15. Attach appropriate conversion kit
label (Figure 10 ) next to the rating plate on
the appliance. Attach the installer conversion
label next to the gas valve, after filling out the
information on the label. Refer to the Installation
Instructions for required input rating.
Figure 10
THIS APPLIANCE HAS BEEN CONVERTED TO:
NATURAL GAS
INPUT BTU/HR – 50,000
MANIFOLD PRESSURE – 3.5"
ORIFICE SIZE – (0.130)
THIS APPLIANCE HAS BEEN CONVERTED TO:
PROPANE/LPG
INPUT BTU/HR – 50,000
MANIFOLD PRESSURE – 10"
ORIFICE SIZE – (0.080)
Step 18. For detailed Lighting Instructions, refer
to the Care And Operations instructions.
Step 16. Turn on gas supply and test for gas
leaks, using a gas leak test solution (also referred
to as bubble leak solution).
Step 17. Attach manometer to the manifold
side pressure test fitting (1/4" Allen wrench for
Electric units) and adjust screw until pressure
reads 3.5 inches water column (6.54 MmHg)
for natural gas, and 10.0 inches water column
(18.69 MmHg) for propane gas. Refer to the
Installation Instructions and the Table below.
Modified Kit
Pressure Regulator
- After Trim
Remove
These
Components
SIT VALVE
Kit Pressure
Regulator - Before
Trim
Electronic Appliances
Step 11. SIT Systems - See Figure 8. Using
a Torx T20, or a flat screwdriver, remove and
discard the three pressure regulator mounting
screws. Remove the pressure regulator, spring,
poppet, diaphragm and bushing. Discard all
removed components.
Using a standard tin snip cutting tool, proceed
to trim shoulder off of the regulator provided
with the kit. Ensure the rubber gasket installed
on the back of the replacement pressure regula-
tor is properly positioned and install the new
modified pressure regulator using the new
screws supplied with this kit. Tighten screws
to 25 In. lb. torque.
Inlet Gas Supply Pressure
Fuel # Minimum Maximum
Propane
Natural
(2.74 kPa)
11.0" WC 13.0" WC
(3.23 kPa)
(1.24 kPa)
4.5" WC 10.5" WC
(2.61 kPa)
INNOVATIVE HEARTH PRODUCTS • DIRECT-VENT GAS FIREPLACE • CONVERSION KITS