Lennox Hearth MN54-VDLPM, MN04-VDLPM Horizontal Vent FIGURES/TABLES, Exterior Wall Thickness

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HORIZONTAL VENT FIGURES/TABLES

Note: Secure Vent components (rigid vent pipe and terminal) are shown in the figures; Secure Flex components (flexible vent pipe and terminal) may also be used.

Note: Two 45 degree elbows may be used in place of one 90 degree elbow. The same rise to run ratios, as shown in the venting figures for 90 degree elbows, must be followed if 45 degree elbows are used.

Note: It is very important that the horizontal/inclined run be main- tained in a straight (no dips) and recommended to be in a slightly elevated plane, in a direction away from the fireplace of 1/4" rise per foot (20 mm per meter) which is ideal, though rise per foot run ratios that are smaller are acceptable all the way down to at or near level.

Note: SV4.5VF (Secure Vent), SF4.5VF (Secure Flex) firestop/spacer must be used anytime vent pipe passes through a combustible floor or ceiling. Lennox MPLDV35"/40" & 45" models require 5" clearances to combustibles above horizontal vent runs when the centerline of the horizontal vent run is at or below 48" (1219 mm) above the fireplace top wrapper. In all other instances, with these three models and with the MPLDV30 in all instances, the clearance to combustibles above horizon- tal vent runs is 3". Please note that to facilitate the 5" clearance when required, we have two 5" clearance firestops. The SV4.5HF5 is for use with rigid (Secure Vent™ ) and the SF4.5HF5 is for use with (Secure Flex™ ). These firestops should be used whenever horizontal vent runs meeting the use requirements detailed above, penetrate walls separating occupied rooms in a house.

Each of our horizontal terminations are shipped with a standard 3" clearance horizontal firestop. In ALL cases this firestop may be used at the exterior wall regardless of any circumstances that may require the 5" clearance to combustibles above the horizontal vent component. The firestop provided with the termination is not specific for use with any particular clearance height.

The SV4.5HF or SF4.5HF firestop provided with each termination can be used as shown in Figure 29 when fitted at the exterior wall adjacent to the termination.

WARNING: UNDER NO CIRCUMSTANCES MAY SEPA- RATE SECTIONS OF CONCENTRIC FLEXIBLE VENT PIPE BE JOINED TOGETHER.

TABLE 3

Venting Components Required for Various Exterior Wall

Thicknesses, When Using The Square Termination (SV4.5HT-2)

Venting Components Required

Exterior Wall Thickness

inches (mm)

 

 

 

Termination Kit Only

6 to 9-1/4 (152 to 235)

Termination Kit and 6 in. Vent

10-1/2 to 13-3/4 (267 to 349)

Section (SV4.5L6)

 

 

 

Termination Kit and 12 in. Vent

16-1/2 to 19-3/4 (419 to 502)

Section (SV4.5L12)

 

 

 

Termination Kit and Telescopic

 

Section (SV4.5LA 2 to 7-12 in.)

11 to 19-3/4 (279 to 502)

& 6 in. vent section (SV4.5L6)

 

 

SV4.5HF/SF4.5HF

 

Firestop

3”

1”

 

1”

1”

 

 

3” Clearance

Stud Framing

Top Spacer

SV4.5HF/SF4.5HF

Firestop

5”

1”

1”

1”

5” Clearance

Stud Framing

Top Spacer

18

Figure 29

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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Contents OTL Report No -F-47-5 MPLDV-35NM-2Table of Contents Model Orifice size Millivolt And Electronic ModelsAll Models Nat PropModel No Shelf Height inches mm Typical LocationsLocation Top Vent ApplicationVent Termination Clearances Vertical Vent Termination ClearancesAppliance and Vent Clearances Horizontal Vent Termination ClearancesRouting GAS Line Typical Installation SequenceDetailed Installation Steps Horizontal Vent Termination Clearances= Clearance to service regulator vent outlet Feet 91cm Canadian Installation US InstallationMeter/regulator assembly Inches 30cm1030 1162 419 1092 Model No903 1035 419 965 FramingModel No Install the Vent System These fireplaces must be vented directly to the outsideVertical Termination Systems Roof Vent Section Length Chart 10 1/2 Min 267 mm Vent / 45 Degree Starter Elbow ConnectionConnection 12/12 Framing Dimensions for Roof Pitch10-1/2 267 mm 10-1/2Bracket Vertical Vent FIGURES/TABLESSupport Ceiling Firestop/Spacer SV4.5VF Detail ViewHorizontal Outside Wall Termination System Plan the vent runFrame exterior wall opening Typical Horizontal Vent InstallationInstall firestop/spacer at ceiling Four incline channels on the collar refer to onMm as shown in Figure Install Firestop/Spacer at exterior wallInstall the desired termination Slide the collars of the termination ontoHorizontal Vent FIGURES/TABLES Exterior Wall ThicknessWall Connection not Directly AT ApplianceConnection Directly AT Appliance Wall Firestop/SpacerWall Ceiling Firestop/Spacer SV4.5VFPull and extend the outer flexible vent pipe Install the Outer Flex PipePull and extend the inner flexible vent pipe Route Flex VentElectronic Wiring See Figure Field WiringMillivolt Wiring See Figure After the wiring is complete, replace the cover plateConnecting GAS Line ING Embers and Volcanic Stones Installing the Glass Door and Optional HoodInstalling the Glass Door MillivoltFinishing Requirements Burner AdjustmentsBurner Adjustment Wall DetailsInstallation Accessories Cold Climate InsulationMantel Clearances Cat Cat. No. Model No. Description.2 Installation Code GAS Conversion KitsMillivolt Appliances Pilot Orifice Electronic Appliances Dexen Electronic Valves Model No Orifice size NaturalPage Page 850,043M REV. F 09/2008 West Taft Avenue Orange, CA
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