Lennox Hearth MN54-VDLPM, MN04-VDLPM Typical Installation Sequence, Detailed Installation Steps

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TYPICAL INSTALLATION SEQUENCE

Horizontal Vent Termination Clearances

The typical sequence of installation follows, however, each installation is unique resulting in variations to those described.

See the page numbers references in the follow- ing steps for detailed procedures.

Step 1. (page 6) Construct the appliance fram- ing. Position the appliance within the framing and secure with nailing brackets.

Step 2. (page 6) Route gas supply line to appliance location.

Step 3. (page 10) Install the vent system and exterior termination. Install additional restrictor, if needed.

Step 4. (page 21) Field Wiring

a. Millivolt Appliances – The operating control switch is factory installed.

b. Electronic Appliances – Connect 120 Vac electrical power to the appliance receptacle.

Step 5. (page 22) Make connection to gas supply.

Step 6. (page 23) Install the logs and glow- ing embers.

Step 7. (page 23) Checkout appliance operation.

Step 8. (page 23) Install glass door frame assembly.

Step 9. (page 24) Adjust burner to ensure proper flame appearance.

DETAILED INSTALLATION STEPS

The appliance is shipped with all gas controls and components installed and pre-wired. Re- move the shipping carton, exposing the front glass door. Remove the bottom panel by lifting and pulling it towards the front.

Open the two latches (located under the firebox floor) securing the glass door. Remove the door by tilting it outward at the bottom and lifting it up. Set the door aside protecting it from inadvertent damage. See Figure 39 on page 23.

Combustible Projection 2-1/2 inches or less in length

Combustible Projection greater than 2-1/2 inches in length

Ventilated

Soffit Unventilated

Soffit

 

18"

12"

 

 

 

3"

 

 

 

(76 mm)

 

 

(457 mm)

(305 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Side Elevation View

Termination Kit

Figure 5 - Side Elevation View

Step 1. FRAMING

Frame these appliances as illustrated in Figure 9 on page 8, unless the appliance is to be installed in a corner.

See Figure 10 on page 8 for corner framing installations. All framing details must allow for a minimum clearance to combustible framing mem- bers as shown in Table 2 on page 4.

If the appliance is to be elevated above floor level, a solid continuous platform must be constructed. Headers may be in direct contact with the appli- ance top spacers but must not be supported by them or notched to fit around them. All construc- tion above the appliance must be self supporting, DO NOT use the appliance for structural support.

The fireplace should be secured to the side framing members using the unit's nailing flanges - one top and bottom on each side of the fireplace front. See Figure 6. Use 8d nails or their equivalent.

Step 2. ROUTING GAS LINE

Route a 1/2" (13 mm) gas line along the inside of the left side framing as shown in Figure 7. 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 flex- ible gas line connector and 1/2 inch shutoff valve. (See step 6 on page 22).

All horizontal terminations may be located as close as 6” (152mm) to any (non-combustible and combustible) exterior sidewall. This distance may be decreased to 2” (51mm) for non- combustible exterior

sidewalls only, if the SV4.5HT-2 termination

is used.

Termination Kit

Unit

Nailing Flange

Side

Framing

Nailing Flanges Are

Provided At All Four

Corners At 5/8”, 1/2”

And Flush Settings

Left Side Top Corner of Fireplace Shown (Right Side Requirements the Same)

Unit Being Secured By Its Nailing Flanges

To The Framing

Note: The nailing flanges, combustible members and screw heads located in areas directly adjacent to the nailing flanges, are EXEMPT from the 1” clearance to combustible requirements for the firebox outer wrapper. Combustible framing may be in direct contact with the nailing flanges and may be located closer than 1” from screw heads and the firebox wrapper in areas adjacent to the nailing flanges. Frame the opening to the exact dimensions specified in the framing details of this manual.

Unit Being Secured by Its Nailing

Flanges to the Framing

Figure 6

Left Side

Front Corner of

Fireplace Framing

6-1/2" (165 mm)

2-1/4" (57 mm)

4-3/4" (121 mm)

6

Figure 7

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