Step.7 - Lennox Hearth Products MONTEBELLO LSM40MP-2 Installation Instructions Manual

TEST ALL CONNECTIONS FOR GAS LEAKS
(FACTORY AND FIELD):
WARNING
Never use an open flame to
check for leaks.
Turn.on.gas.supply.and.test.for.gas.leaks.using.a.
gas.leak.test.solution.(also.referred.to.as.bubble.
leak.solution)..
Note: Using a soapy water solution is an
effective leak test solution but it is not recom-
mended, because the soap residue that is left
on the pipes/fittings can result in corrosion
over time.
A..Light. the. appliance. (refer. to. the. lighting.
instructions.label.in.the.control.compartment.
or. in. the. Care. and. Operation. Instructions.
manual).
B..Brush.all.joints.and.connections.with.the.gas.
leak.test.solution.to.check.for.leaks..If.bubbles.
are.formed,.or.gas.odor.is.detected,.turn.the.
gas. control. knob. (off/pilot/on). to. the. "OFF".
position...Either.tighten.or.refasten.the.leaking.
connection,.then.retest.as.described.above.
C. When.the.gas.lines.are.tested.and.leak.free.be.
sure.to.rinse.off.the.leak.testing.solution..
D..Re-install.the.access.plate,.making.certain.the.
gasket.has.not.been.damaged.
Step 7. CHECKING APPLIANCE OPERA-
TION
Turn. on. burner. then. observe. the. individual.
tongues. of. flame. on. the. burner.. . Make. sure.
all.ports.are.open.and.producing.flame.evenly.
across.the.burner...If.any.ports.are.blocked,.or.
partially.blocked,.clean.out.the.ports.
With.gas.line.installed.run.initial.system.check-
out. before. closing. up. the. front. of. the. unit.. .
Follow.the.pilot.lighting.instructions.provided..
For. piezo. igniter. location. refer. to Figure 38
(millivolt.appliances.only).
Note: Lighting Instructions are also found on
the literature tag tied to the bracket above the
gas valve. To access the tag, reach into the
right side opening.
When.first.lighting.the.appliance,.it.will.take.a.few.
minutes.for.the.line.to.purge.itself.of.air..Once.
purging.is.complete,.the.pilot.and.burner.will.
light.and.operate.as.indicated.in.the.instruction.
manual..Subsequent.lighting.of.the.appliance.
will.not.require.such.purging..Inspect.the.pilot.
flame. (remove. logs,. if. necessary,. handling.
carefully).
Millivolt Appliance Checkout
The. pilot. flame. should. be. steady,. not. lifting.
or.floating..Flame.should.be.blue.in.color.with.
traces.of.orange.at.the.outer.edge.
The. top. 3/8". (10. mm). at. the. pilot. generator.
(thermopile). and. the. top. 1/8". minimum. (tip).
of.the.quick.drop.out.thermocouple.should.be.
engulfed.in.the.pilot.flame..
The.flame.should.project.1".(25.mm).beyond.the.
hood.at.all.three.ports.(see Figure 39). .Replace.
logs.if.removed.for.pilot.inspection.
To.light.the.burner;.rotate.the.gas.valve.control.
knob.counterclockwise.to.the."ON".position.
("ON".will.be.at.the.bottom.side.of.the.valve).
and..turn."ON".the.appliance.mounted.ON/OFF.
switch.
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
MILLIVOLT
Hood
Thermocouple
Pilot
Nozzels
Thermopile
Figure 39
Electronic Appliance Checkout
To.light.the.burner,.turn.'ON'.the.optional.remote.
wall. switch. or. turn. the. appliance. mounted.
ON/OFF.switch.to.the."ON".position...Ensure.
the. igniter. lights. the. pilot.. . The. pilot. flame.
should. engulf. the. flame. sensor. as. shown. in.
Figure 40.
ELECTRONIC
Hood
Flame
Sensor
Pilot
Nozzels
Figure 40
Igniter Rod
3/8" Min
(9 mm)
Ignitor Rod
23