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SIT Millivolt Gas
Valve Shown
Pressure
Regulator
SIT Electronic Gas Valve
LO
HI
Pressure
Regulator
Millivolt & Electronic Gas Valves
Figure 54
Step 5. Attach manometer to the manifold side
pressure test fitting and verify manifold pressure
reads 3.5 inches water column (0.87 kPa) for
natural gas, and 10.0 inches water column (2.49
kPa) for propane gas.
Step 6. Refer to Figure 55 and remove the
pilot hood assembly to access the hexed pilot
orifice. Remove and replace the orifice with the
one provided with the kit.
Lennox Hearth Products reserves the right to make changes at any time, without notice, in
design, materials, specifications, prices and also to discontinue colors, styles and products.
Consult your local distributor for fireplace code information.
Printed in U.S.A. © 2007 Lennox Hearth Products
P/N 850,044M REV. D 06/2008
2
SIT Millivolt Pilot Assembly Shown
Remove
These
Components
Millivolt & Electronic Pilot Assemblies
Figure 55
Step 7. (Refer to Figure 53 on Page 31)
A. Remove the orifice from the manifold and
replace it with the one provided in the kit.
See Table 8 for orifice sizes for natural and
propane models. Figure 56 illustrates the
orifice. Use pipe joint compound or teflon
tape when installing the orifice.
B. Retrieve the burner and slide the venturi
tube over the orifice (see Figure 53). Set
the burner assembly into its position and
secure it.
Thermopile
(on millivolt
pilot assem-
blies only)
Pilot
Orifice
SIT Electronic Pilot
Pilot
Orifice
Burner Orifice Sizes
Elevation 0-4500 feet ( 0-172 meters)
Model
Nat.Gas
Series
drill size (inches)
.067"
ADAGIO-MN
(#51)
-------------
ADAGIO-MP
.067"
ADAGIO-EN
(#51)
ADAGIO-EP
-------------
if field converted
Table 8
Figure 56 - Burner Orifice
Step 8. Reassemble the remaining 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).
Step 9. Attach the conversion label provided
in the conversion kit to the rating plate on the
appliance.
Step 10. Turn on gas supply and test for gas
leaks.
1110 West Taft Avenue • Orange, CA 92865
Propane
drill size (inches)
-------------
.042"
(#58)
-------------
.042"
(#58)
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