Step.2; Proper.sizing.of.gas.line - Lennox Hearth Products MONTEBELLO LSM40MP-2 Installation Instructions Manual

Model
No.
in. 50-5/8
LSM40-2
mm 1286
in. 56-3/4
LSM45-2
mm 1441
Figure 13 - Corner Framing with Square Termination (SV8HTS)
Step 2. ROUTING GAS LINE
Route.a.1/2".(13.mm).gas.line.along.the.inside.
of.the.right.side.framing.as.shown.in Figure
14...Gas.lines.must.be.routed,.constructed.and.
made.of.materials.that.are.in.strict.accordance.
with.local.codes.and.regulations.
All. appliances. are. factory-equipped. with. a.
flexible.gas.line.connector.and.1/2.inch.shutoff.
valve..(See Step 6 on Page 22).
The. incoming. gas. line. should. be. piped. into.
the.valve.compartment.and.connected.in.one.
of.the.two.methods.as.shown.in.Figure 37.on.
Page 22.
Figure 14
Proper Sizing of Gas Line
Properly. size. and. route. the. gas. supply. line.
from.the.supply.regulator.to.the.area.where.the.
appliance. is. to. be. installed. per. requirements.
outlined.in.the.National.Fuel.Gas.Code,.NFPA.
54.-.latest.edition.(USA).or.CAN/CSA-B149.1.
-.latest.edition.(Canada)..
A B C
83-5/8 59-1/8 41-7/8
2124 1502 1064
89-7/8 63-1/2 44-7/8
2283 1613 1140
Never. use. galvanized. or. plastic. pipe.. . Refer.
to. Table 6. for. proper. sizing. of. the. gas. sup-
ply.line,.if.black.iron.pipe.is.being.used..Gas.
lines. must. be. routed,. constructed. and. made.
of.materials.that.are.in.strict.accordance.with.
local.codes.and.regulations....We.recommend.
that.a.qualified.individual.such.as.a.plumber.or.
gas.fitter.be.hired.to.correctly.size.and.route.
the.gas.supply.line.to.the.appliance..Installing.
a.gas.supply.line.from.the.fuel.supply.to.the.
appliance.involves.numerous.considerations.of.
materials,.protection,.sizing,.locations,.controls,.
pressure,.sediment,.and.more..Certainly.no.one.
unfamiliar.and.unqualified.should.attempt.sizing.
or.installing.gas.piping.
Inside Diameter (Inches)
Schedule 40 Pipe
Length (feet)
0-10
10-40
40-100
100-150
150-200
Table 6
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
D
C
Back wall of chase/enclosure
(including any finishing materials)
Schedule 40
Black Iron Pipe
Natural Propane
Gas Gas
1/2 3/8
1/2 1/2
1/2 1/2
3/4 1/2
3/4 1/2
A
B
Notes:
•. All. appliances. are. factory-equipped. with.
a. flexible. gas. line. connector. and. 1/2. inch.
shutoff.valve.(see.Figure 37.on.Page 22).
•. See.Massachusetts Requirements.on.Page
4..for.additional.requirements.for.installations.
in.the.state.of.Massachusetts.in.the.USA.
•. The.gas.supply.line.should.Not.be.connected.
to.the.appliance.until.Step 6.(Page 22).
•. A.pipe.joint.compound.rated.for.gas.should.be.
used.on.the.threaded.joints. Ensure propane
resistant compounds are used in propane
applications..Be.very.careful.that.the.pipe.
compound.does.not.get.inside.the.pipe.
•. It.is.recommended.to.install.a.sediment.trap.
in.the.supply.line.as.close.as.possible.to.the.
appliance.(see.Figure 37)...Appliances.using.
propane.should.have.a.sediment.trap.at.the.
base.of.the.tank.
•. Check. with. local. building. official. for. local.
code.requirements.(i.e..are.below.grade.pen-
etrations.of.the.gas.line.allowed?,.etc.).
IMPORTANT: If propane is used, be aware that
if tank size is too small (i.e. under 100-lbs, if
this is the only gas appliance in the dwelling.
Ref. NPFA 58), there may be loss of pressure,
resulting in insufficient fuel delivery (which
can result in sooting, severe delayed ignition
or other malfunctions). Any damage resulting
from an improper installation, such as this, is
not covered under the limited warranty.
D
11