Lennox MLDVT-30NM Installation Instructions Manual page 36

Supply
Gas Inlet
Pilot Gas
Outlet
Figure 54
ELECTRONIC
Sensor
Igniter
Note: If the igniter is damaged, a replace-
ment kit is available, order Catalog Number
87L54.
Figure 55
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Consult your local distributor for fireplace code information.
Printed in U.S.A. © 2009 by Lennox Hearth Products
P/N 50605-02 REV. A 06/2009
Regulator
Pressure-Tap
Mounting Screw
(Manifold)
PILOT
Pressure-Tap
(Inlet)
All Models
Step 8. (Refer to Figure 51, Page 35)
Pilot
Hood
A. Remove the orifice from the manifold
and replace it with the one provided in the
kit. See Table 11 for orifice sizes for natural
and propane models. Figure 56 illustrates
the orifice.
B. Retrieve the burner and slide the venturi
tube over the orifice. Set the shutter adjusting
opening as shown in Figure 49, Page 3.
Step 9. 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).
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Burner Stage
Terminal
Gas Outlet
To Burner
Ground
(TP)
Pilot Stage
Terminal
Step 0. Attach the conversion label provided
in the conversion kit to the rating plate on the
appliance.
Step . Turn on gas supply and test for gas
leaks.
Burner Orifice Sizes
Elevation 0-4500 feet ( 0-372 meters)
Model Nat.Gas
Series drill size (inches)
#50 (0.070")*
MLDVT-30
H4873•
#49 (0.073")*
MLDVT-35
2L82•
#43 (0.089")*
MLDVT-40
99K75•
0.090"*
MLDVT-45
37L70•
Table 11 * Standard size installed at factory
• Part /Cat. Number
Figure 56
Lennox Hearth Products
0 West Taft Avenue • Orange, CA 92865
Propane
drill size (inches)
#59 (0.04")*
H7838
0.045"*
75L0•
#55 (0.052")*
9L52•
#54 (0.055")*
99K79•