Lennox Hearth LMDV-40 Series Installing the Glass Door, Removing Glass Enclosure Panels

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Step 9. Installing the Glass Door

WARNING

Do notoperateappliancewiththe glass front removed, cracked or broken. Replacementoftheglass should be done by a licensed or qualified service technician.

WARNING

Do not attempt to substitute the materials used on this door, or replace cracked or broken glass with any materials other than those provided by the appliance manufacturer.

WARNING

Handle this glass with extreme care! Tempered glass is suscep- tible to damage – do not scratch or handle roughly while rein- stalling the glass door frame.

WARNING

The glass door of this appli- ance must only be replaced as a complete unit as provided by the manufacturer. Do not attempt to replacebroken,crackedorchipped glass separately.

WARNING

Do not attempt to touch the front enclosure glass with your hands while the fireplace is in use.

Removing Glass Enclosure Panels

(see Figure 57)

1.Remove the top louver assembly by gently lifting it upward until the hook catches on boths sides clear the locating slots. Then pull door out to remove.

2.Removethecontrolcompartmentaccessdoor the same way as described in Step 1 above.

3.Locate the two (2) latches at the top of the control compartment. To disengage the two latches from the bottom vee-flange of the glass enclosure panel, reach for the handles located towards the back of the latches and pull the handles down toward the front of the appliance.

4.Swing the bottom of the door out and raise it slightly to lift the top flange of the door frame away from the appliance.

Installing Glass Enclosure Panels

(see Figure 57)

1.Visuallyinspectthegasketonthebacksideofthe glass panel. The gasket surface must be clean, free of irregularities and seated firmly.

2.Position the glass enclosure panel in front of the firebox opening at a 45 degree angle and engage the top flange over the lip at the top of the firebox opening. See Figure 57.

3.Swing the glass enclosure panel down and back. Ensure the gasket seats evenly as the panel draws shut. Engage the Vee-flange at the bottom of the panel with the latches and close the latches to secure the panel.

4.Reinstall top louver assembly and control compartment door see installation instruc- tions on Page 25, Reinstalling Control Compartment Door).

 

Top Flange on

 

Glass Door

 

Glass Door

Bottom Vee-flange

 

Glass Door

Firebox Floor

 

Glass Door Latch

Figure 57 - INSTALLING GLASS DOOR

Step 10. Burner Adjustments Flame Appearance and sooting

Proper flame appearance is a flame which is blue at the base and becomes yellowish-orange in the body of the flame. When the appliance is first lit, the entire flame may be blue and will gradually turn yellowish-orange during the first

15minutes of operation. If after a short period the flame stays lowered blue, or if the flame is orange with evidence of sooting (black tip), the air shutter opening may need to be adjusted.

If the air shutter openings closed too far, sooting may develop. Sooting is indicated by black puffs developing at the tips of very long orange flames. Sooting results in black deposits forming on the logs, appliance inside surfaces and on exterior surfaces adjacent to the vent termination. Soot- ing is caused by incomplete combustion in the flames and lack of combustion air entering the air shutter opening. To achieve a warm yellow- ish-orange flame with an orange body that does not soot, the shutter opening must be adjusted between these two extremes.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Air Shutter Adjustment Guidelines

If there is smoke or soot present, first check the log set positioning to ensure that the flames are not impinging on any of the logs. If the log set is properly positioned and a sooting condition still exists, then the air shutter opening should be increased.

Themoreoffsetsintheventsystem,thelarger the air shutter opening will need to be.

An appliance operated with the air shutter opened too far, may have flames that appear blue and transparent. These weak, blue and transparent flames are termed anemic.

Propane models may exhibit flames which candle or appear stringy. If this is present and persists, adjust the air shutter to a more closed position, then operate the appliance for a few more minutes to ensure that the flame normalizes and the flames do not appear sooty.

The following chart is provided to aid you in achieving the correct air shutter adjustment for your installation.

Air Shutter Adjustment Guidelines:

Amount of

Flame

Air Shutter

Primary Air

Color

Adjustment

 

 

 

 

 

 

 

If air shutter is

Flame will

Air shutter

closed too far

be orange

gap should be

 

 

 

 

 

 

increased

 

 

 

 

 

 

If air shutter is

Flame will

Air shutter

open too far

be blue

gap should be

 

 

 

 

 

 

decreased

 

 

 

 

 

 

WARNING

Airshutteradjustmentshouldonly beperformedbyaqualifiedprofes- sional service technician.

WARNING

Ensure front glass panel are in place and sealed during adjust- ment.

CAUTION

Carbon will be produced if the air shutter is closed too much. Any damage due to carboning result- ing from improperly setting the air shutter is not covered under the warranty.

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Contents OTL Report No -F-31-5 Vented GAS Fireplace Heaters Direct Vent Models850,029M REV. G 05/2008 Table of Contents Honeywell Millivolt SIT MillivoltLocation Cold Climate InsulationMassachusetts And New York City, NY Re- quirements MassachusettsVertical Vent Termination Clearances Manufactured Home RequirementsHorizontal Vent Termination Clearances Vent Termination ClearancesMeter/regulator assembly Canadian Installation US Installation= Clearance to service regulator vent outlet Feet 91cm Inches 30cmAppliance and Vent Clearances Minimum Clearances to CombustiblesPanel or louvers Adjacent to itTypical Installation Sequence Detailed Installation StepsFraming Routing Gas LineFrom Fireplace specificationsThis center mark see Figure Vent Size Vertical Venting Through the CeilingSchedule Black Iron Pipe Inside Diameter Inches Fireplace Framing specificationsNatural PropaneCross Section Install the Vent System General InformationThese fireplaces must be vented directly to the outside Vent Section Length Chart Vertical Straight InstallationVertical Termination Systems Roof Effective Vent LengthAttach vent components to each other Vertical Offset InstallationIf the vent system extends more than 5 feet Vertical Vent FIGURES/TABLESPitch Table B Maximum Minimum Feet Meter 610 305 219 829 914 438524 Elbow Only 305 048 610 572 914 096 219 Ratio V to H ratio isMaximum Minimum Feet Meter Table C524 610 305 048 219 572 829 914 096 438 Table D + H1 Maximum MinimumSee on Page 12 or on Typical Horizontal Vent InstallationSee on Page 9 for Min Install Firestop/Spacer at exterior wallSame manner as any SV4.5 vent component refer to Step E Table F Maximum Horizontal Vent FIGURES/TABLESFeet Meter 914Horizontal Vent Figures / Tables 524 Elbow Only Minimum524 305 048 610 572 914Attach Flex Vent to Termination Install the Outer Flex PipeFlexible Vent Section See Figure Field WiringWiring Optional Forced Air Blower Kit Schematic Representation Only Connecting Gas LineLouver Panel Instructions Ref Control Compartment AccessChecking Appliance Opera- tion SIT and Honeywell Millivolt Appliance CheckoutCanic STONE, Glowing Embers and Logs Install VERMICULITE, VOLElectronic Appliance Checkout Shown here 1 through 6 and per the instructions on LOG SETCatalog Number H3366 Catalog Number H3365 Model LMDV-4035Installing Glass Enclosure Panels Installing the Glass DoorBurner Adjustments Flame Appearance and sooting Air Shutter Adjustment GuidelinesHood Installation Burner Air Shutter Adjustment ProcedureFinishing Requirements Wall Details Drywall Bracket / Spacer12C Cat. No Model Description12B Open Top, Chase Top Shroud Cat. NoLMDV-3328 & LMDV-3530 Models Only Listed Secure Flex ComponentsDescription All compressed flex vents can be expanded up to two timesH2011 H2009H2013 H2010Millivolt Appliances SIT Systems Adjusting KnobSIT Millivolt Gas Valve Pilot for SIT Millivolt Gas ValveElectronic Appliances Honeywell Systems Pilot Orifice Ignitor AssemblySeries 850,029M REV. G 05/2008 West Taft Avenue Orange, CA

LMDV-3530-CNM, LMDV-35 Series, LMDVR-3328-CNE, LMDV-4035-CNE, LMDV-4035-CPM specifications

Lennox Hearth products are renowned for their quality, efficiency, and innovative technologies that optimize the home heating experience. Among the standout offerings in their lineup are the LMDV-3530-CPM, LMDVR-3328-CPM, LMDV-3530-CNE, LMDVT-3328-CPM, and LMDVR-3328-CNM models. Each of these products embodies the brand's commitment to performance and design, making them a popular choice for modern homeowners.

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Overall, Lennox Hearth’s suite of models combines elegance, efficiency, and innovation, ensuring that homeowners can find the perfect heating solution to complement their living spaces. Each product is engineered with state-of-the-art technologies that reflect Lennox’s dedication to quality and customer satisfaction.