Lennox Hearth L20 BF-2, L20 DVF-2 manual Installation Check List ALL Models

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INSTALLATION

INSTALLATION CHECK LIST (ALL MODELS)

2. Adjust gap as shown in following picture.

Read and understand these instructions before using ap- pliance. Go through this installation checklist:

Ensure that the log set is properly installed. Use cau- tion when handling the logs. See page 14.

Reinstall the door frame assembly. See Door Assem- bly on this page.

WARNING: DO NOT OPERATE APPLIANCE WITH THE GLASS FRONT REMOVED, CRACKED OR BROKEN. REPLACEMENT OF THE GLASS SHOULD BE DONE BY A QUALIFIED TECHNICIAN.

Air Shutter

NG = 1/4 Open (1/8” gap) LP = 1/2 Open (1/4” gap)

Loosen setscrew using Phillips screwdriver

Burner Assembly

Ensure venting termination cap is unobstructed.

Check to see that wiring is correct and is enclosed inside the stove pedestal base (See page 22).

(Model L20 DVF-2) Ensure that the relief door is properly closed. (see Combustion Chamber Relief Door on page 17).

Verify that the gas line has been purged of air.

Test all connections for leaks (factory and field) with a leak detector or soapy water solution. If you smell gas, do not attempt to light this appliance. Follow safety instructions on the front cover of this manual.

Burner Air Shutter opening to be:

Natural Gas – 1/4 open, Propane 1/2 open.

Some adjustment from standard may be necessary for the desired flame characteristics (see Burner Flame Appearance, page 21). To adjust air shutter:

1.Remove burner from firebox by removing the 2 nuts as shown in the following picture. Then lift burner up and out of firebox.

Air Shutter

Remove 2 nuts, then lift burner out of firebox.

Burner Assembly

3.Reinstall burner. Do not overtighten nuts (finger tight only).

Light the appliance following the instructions on page 16 (Care and Operation). Relight the main burner in both the HI, and LO positions, and verify proper burner ignition and operation.

Perform Spillage Test Procedure (see Spillage Test Procedure, page 24).

With burner lit, check to make sure that the inlet gas and mani- fold pressures are correct (see Gas Pressure, page 4). Verify that the pilot and main burner ignition and operation are correct.

NOTE: Upon the initial firing of your new gas stove, you may notice an odor. This may last up to two hours. It is recommended to open the windows to allow fresh air to circulate into the room. (see “Break In” Period, page 17).

WARNING: IF THE PILOT DOES NOT LIGHT AFTER 1 MINUTE, WAIT AT LEAST 5 MINUTES FOR GAS TO CLEAR BEFORE ATTEMPTING AGAIN.

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Contents Freestanding Vented GAS Fired Room Heaters Retain this Manual for Future Reference775,021M Rev. C, 8/04 Important Warnings / Cautions Table of Contents LOW High Planning Your InstallationLocal and National Code Requirements Tool / Equipment ListQuestions to ASK the Local Building Official Corner Manufactured Mobile Home RequirementsImportant Notes Rear Wall or AlcoveVertical Termination with no Offsets Vertical Termination With 2 OffsetsHorizontal Termination With 1 Offset Direct Vent System Components Model L20 DVF-2 only InstallationSV4MCK Installation Model L20 DVF-2 onlyCony Vent Configuration Requirements Model L20 BF-2 onlyFor vent termination requirements, see Pressure Testing GAS Supply Hookup ALL ModelsSupply Line Size Requirements Door Operation ALL Models GAS Appliance Final Assembly ALL Models Installing LOG SETGlowing Embers Verify that the gas line has been purged of air Installation Check List ALL ModelsLighting and Shutdown Instructions ALL Models For Your Safety Read Before LightingCare and Operation Gas Control KnobsALL Models BREAK-IN Period Combustion Chamber Relief DoorCirculation Blower Operation Canada Parts ListPropane Conversion Procedure Propane ConversionBurner Flame Appearance Reference InformationMaintenance Pilot Flame Appearance Air Shutter AdjustmentALL Models Periodic Check of Pilot and Burner Flames Cycle unit a minimum of 2 timesWiring Diagrams GAS Control and Safety System Wiring DiagramModel L20 BF-2 Model L20 DVF-2 ALL Models Troubleshooting Qualified Technicians OnlyModel L20 BF-2 only Spill Switch Troubleshooting Check List Qualified Technicians OnlySpillage Test Procedure Item # Catalog # Description Where Used Replacement Parts Models L20BF-2 & L20 DVF-2Item # Catalog # Model Description Optional Accessories Models L20BF-2 & L20 DVF-2Top View Side View Specifications Model L20 BF-2Specifications Model L20 DVF-2 SAFETY/ Listing Label Rating Plate SAFETY/ Listing Label Rating Plate Ownership Records Service and Maintenance LOG775,021M REV. C 08/2004

L20 DVF-2, L20 BF-2 specifications

The Lennox Hearth L20 DVF-2 and L20 BF-2 are two innovative gas fireplaces that offer modern heating solutions for homes looking to combine functionality, style, and efficiency. Both models are designed with advanced technology to deliver reliable performance and aesthetics that enhance any living space.

The L20 DVF-2 is a direct vent fireplace that utilizes a sealed combustion system, allowing it to operate efficiently without drawing air from the room. This feature not only improves energy efficiency but also helps maintain indoor air quality since outside air is used for combustion. One of its standout features is the ability to provide a range of heat output options, allowing homeowners to adjust the warmth to their preference. The fireplace comes with a convenient remote control, enabling effortless operation from anywhere in the room.

The L20 BF-2, on the other hand, is a conventional vent fireplace, offering a different installation option ideal for various home designs. Similar to the DVF-2, the BF-2 model provides a wide range of heat output, ensuring comfort in chilly conditions. It features a striking design with a large viewing area, allowing for a mesmerizing flame display that serves as a focal point in any room.

Both models are equipped with Lennox's patented Powerflow technology, which optimizes heat distribution throughout the space. This technology not only enhances comfort but also ensures that energy is used efficiently. The fireplaces also feature easy-to-use controls and customizable flame height settings, giving users precise control over their heating experience.

In terms of design, the L20 DVF-2 and L20 BF-2 come in various finishes and styles, allowing them to seamlessly blend with different home aesthetics. Their sleek and contemporary appearance complements modern interiors, while still fitting into more traditional décor in subtle ways.

Overall, the Lennox Hearth L20 DVF-2 and L20 BF-2 provide effective heating solutions paired with advanced technologies and stylish designs. Whether a homeowner desires a direct vent option or a traditional vent fireplace, both models deliver energy-efficient performance, exceptional heat distribution, and a stunning flame display that can enhance the ambiance of any living space. These fireplaces are not just heating appliances; they are an investment into comfort and elegance for years to come.
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