Lennox Crestline LSBV-3628MN Installation Instructions Manual page 16

LENNOX CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS
Gas Conversion Kits (continued)
Step 5. Millivolt Systems – 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. See Figure 26 and remove the pilot
hood assembly to access the hexed pilot orifice.
Remove and replace the orifice with the one
provided with the kit.
Pilot
Orifice
Figure 26
Electronic Appliances
Step 7. SIT Electronic Valves - See Figure
28 and the instructions provided with the
kit. Remove the slotted cap screw, o-ring,
pressure-regulating adjusting screw and spring,
then discard.
Modify the pressure regulator from the kit.
Using a standard tin snip cutting tool, proceed
to trim shoulder off of the regulator.
Install new components and modified pressure
regulator from the kit.
Attach manometer to the manifold side pressure
test fitting and adjust screw until 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.
Lennox Hearth Products reserves the right to make changes at any time, without notice, in design,
materials, specifications, and prices, and also to discontinue colors, styles and products.
Consult your local distributor for fireplace code information.
Printed in U.S.A. © 2007 by Lennox Hearth Products
P/N 850042M REV. C 07/2010
16
Pilot
Orifice
Figure 27
SIT VALVE
Modified Kit
Pressure Regulator
- After Trim
Remove
These
Components
Kit Pressure
Regulator - Before
Trim
Figure 28
Refer to Figure 27 and replace the pilot orifice
as follows: Remove the pilot hood assemble
to access the hexed polot ofifice.
Remove the pilot orifice and replace it with the
one provided with the conversion kit. Reinstall
the pilot assembly by reversing the steps
detailed here.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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.
All Models
Step 8. Unscrew the orifice from the manifold
and replace it with the one provided with the
kit. See the following table for orifice sizes
for natural and propane models. Figure 29
illustrates the orifice.
LSBV
Series
Natural
3628 #26
4228 #26
Figure 29
Step 9. 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).
Step 10. Attach the conversion label provided
in the conversion kit to the rating plate on the
appliance.
Step 11. Turn on gas supply and test for gas
leaks (see Step 6 on page 8.)
1508 Elm Hill Pike, Suite 108 • Nashville, TN 37210
Orifice Size
Propane
#45
#45