Lennox Hearth MN04-VDLPM, MN03-VDLPM Installing the Glass Door and Optional Hood, Millivolt

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Step 6. INSTALLING THE LOGS, GLOW-

ING EMBERS AND VOLCANIC STONES

Remove the gas line access plate and gasket from the provided plastic bag and install them over the opening, using the provided screws

(4) as shown in Figure 39.

Refer to Figure 43 and loosen the set screw for the venturi air shutter. Manually actuate the air shutter through several cycles. Set the air shutter to 3/32" before placing the logs.

The logs are packaged in a carton located within the firebox. One plastic bag of glowing embers and volcanic stones are located in the bottom compartment. Refer to the Log Set Placement Supplement for detailed place- ment instructions for the logs, glowing em- bers and volcanic stones.

Proper log and twig placement is critical to encourage outstanding flame appearance and prevent sooting. These fires are designed to provide a rich orange/red glow on the logs. Ensure the bottom of the rear log is fully seated and pulled as far forward as the pins will al- low. Refer to the Log Set Placement Supplement for detailed instructions.

Note: Log setup is by design asymmetric. The fire is intentionally positioned off center to provide a natural fire look.

Step 7. CHECKING APPLIANCE OPERATION

With gas line installed run initial system check- out before closing up the front of the unit. Follow the pilot lighting instructions provided in the Homeowner's Care and Operation In- structions. For piezo ignitor location see Fig- ure 39 on page 23 (millivolt appliances only).

Note: Lighting Instructions are also found on the literature tag tied to the gas piping next to the gas valve. To access the tag, open the lower control compartment door (Figure 39 on page 23 ) by pulling the panel forward.

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 purg- ing. 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" min (tip) of the quick drop out thermocouple should be en- gulfed in the pilot flame.

The flame should project 1" (25 mm) beyond the hood at all three ports (Figure 40 ). Re- place logs if removed for pilot inspection.

To light the burner; turn “ON” the remote wall switch and rotate the gas valve control knob counterclockwise to the “ON” position (“ON” will be at the bottom side of the valve).

MILLIVOLT

Hood Ignitor Rod

Thermocouple

3/8" Min

(9 mm)

Pilot

Nozzels

Thermopile

Figure 40

Electronic Appliance Checkout

To light the burner, turn ‘ON’ the unit mounted On/Off switch or the optional remote wall switch. Ensure the ignitor lights the pilot. The pilot flame should engulf the flame rod as shown in Figure 41.

ELECTRONIC

 

Sensor

Pilot

 

Hood

Ignitor

 

Figure 41

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Step 8. INSTALLING THE GLASS DOOR AND OPTIONAL HOOD

To access the glass door securing latches, first open the lower control compartment door (Figure 42 ) by lifting and pulling the bottom panel forward.

Retrieve the glass door. Visually inspect the gasket on the backside of the frame. Gasket surface must be clean, free of irregularities and seated firmly.

Position the door in front of the firebox opening with the bottom of the door held away from the fireplace (Figure 42 ). Hook the top flange of the door frame over the top of the firebox frame. Let the bottom of the door frame swing gently in towards the fireplace ensuring that the gas- ket seats evenly as the door frame draws shut. Fasten the two latches located underneath the firebox floor to the door's vee-flange. Close both the latches securely.

If desired, install the optional hood. Note the location of the three clips inside the top air channel above the door. The clips are equally spaced on the top surface of the air channel opening. Use a screwdriver to open the clips slightly if needed. Engage the back edge of the eyebrow into the clips to secure.

Burner

 

Assembly

 

Door

 

Assembly

 

Gas Line Access Panel

Bottom Panel

Figure 42 -

 

INSTALLING THE GLASS DOOR

WARNING: HANDLE THIS GLASS WITH EXTREME CARE! THE GLASS PANEL IS SUSCEPTIBLE TO DAMAGE — DO NOT SCRATCH WHILE HANDLING OR WHILE RE-INSTALLING THE GLASS DOOR FRAME.

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Contents OTL Report No -F-47-5 MPLDV-35NM-2Table of Contents Millivolt And Electronic Models All ModelsModel Orifice size Nat PropTypical Locations LocationModel No Shelf Height inches mm Top Vent ApplicationVertical Vent Termination Clearances Appliance and Vent ClearancesVent Termination Clearances Horizontal Vent Termination ClearancesTypical Installation Sequence Detailed Installation StepsRouting GAS Line Horizontal Vent Termination ClearancesCanadian Installation US Installation Meter/regulator assembly= Clearance to service regulator vent outlet Feet 91cm Inches 30cmModel No 903 1035 419 9651030 1162 419 1092 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 Framing Dimensions for Roof Pitch 10-1/2 267 mm12/12 10-1/2Vertical Vent FIGURES/TABLES SupportBracket Ceiling Firestop/Spacer SV4.5VF Detail ViewHorizontal Outside Wall Termination System Plan the vent runTypical Horizontal Vent Installation Install firestop/spacer at ceilingFrame exterior wall opening Four incline channels on the collar refer to onInstall Firestop/Spacer at exterior wall Install the desired terminationMm as shown in Figure Slide the collars of the termination ontoHorizontal Vent FIGURES/TABLES Exterior Wall ThicknessConnection not Directly AT Appliance Connection Directly AT ApplianceWall Wall Firestop/SpacerWall Ceiling Firestop/Spacer SV4.5VFInstall the Outer Flex Pipe Pull and extend the inner flexible vent pipePull and extend the outer flexible vent pipe Route Flex VentField Wiring Millivolt Wiring See FigureElectronic Wiring See Figure After the wiring is complete, replace the cover plateConnecting GAS Line Installing the Glass Door and Optional Hood Installing the Glass DoorING Embers and Volcanic Stones MillivoltBurner Adjustments Burner AdjustmentFinishing Requirements 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