Lennox Hearth L20 DVF-2, L20 BF-2 Wiring Diagrams, GAS Control and Safety System Wiring Diagram

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WIRING DIAGRAMS

GAS CONTROL AND SAFETY SYSTEM WIRING DIAGRAM

CAUTION: Label all wiring prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous opera- tion. Verify proper operation after servicing.

The gas control wiring diagram shown here should be used by service technicians for guidance when troubleshooting problems with the pilot safety (millivolt) system or burner remote control system or when locating system components for repair / replacement. Note: If replacement of any of the original wire is necessary, use 105°C thermoplastic wiring.

 

MODEL L20 BF-2

MODEL L20 DVF-2

 

 

 

Igniter Gas Thermopile

Igniter

Gas

Thermopile

 

Pilot

 

Pilot

 

 

Thermocouple

Thermocouple

 

 

Burner ON/OFF

Pilot

 

Pilot

 

 

Assembly

 

 

Switch

Burner ON/OFF

 

Assembly

 

 

 

 

Switch

 

 

Wall Thermostat

Vent Spill

Wall Thermostat

(optional)

 

Switch

(optional)

CIRCULATING BLOWER WIRING DIAGRAM (ALL MODELS

 

Microswitch for

 

Thermostatic

Control Panel Light

Control

Switch (fan disc)

 

Panel

Variable Speed

 

Light

Control

 

 

(rheostat)

 

 

Power Cord

Ground

Convection Blower

120 V AC

AC Power

Supply

(room air circulation blower)

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Contents Retain this Manual for Future Reference Freestanding Vented GAS Fired Room Heaters775,021M Rev. C, 8/04 Important Warnings / Cautions Table of Contents Tool / Equipment List Planning Your InstallationLocal and National Code Requirements LOW HighQuestions to ASK the Local Building Official Rear Wall or Alcove Manufactured Mobile Home RequirementsImportant Notes CornerVertical Termination With 2 Offsets Vertical Termination with no OffsetsHorizontal Termination With 1 Offset Installation Direct Vent System Components Model L20 DVF-2 onlyInstallation Model L20 DVF-2 only SV4MCKCony Model L20 BF-2 only Vent Configuration RequirementsFor vent termination requirements, see GAS Supply Hookup ALL Models Pressure TestingSupply Line Size Requirements Door Operation ALL Models Installing LOG SET GAS Appliance Final Assembly ALL ModelsGlowing Embers Installation Check List ALL Models Verify that the gas line has been purged of airGas Control Knobs ALL Models For Your Safety Read Before LightingCare and Operation Lighting and Shutdown InstructionsCombustion Chamber Relief Door ALL Models BREAK-IN PeriodCirculation Blower Operation Propane Conversion Parts ListPropane Conversion Procedure CanadaReference Information Burner Flame AppearanceMaintenance Cycle unit a minimum of 2 times Air Shutter AdjustmentALL Models Periodic Check of Pilot and Burner Flames Pilot Flame AppearanceGAS Control and Safety System Wiring Diagram Wiring DiagramsModel L20 BF-2 Model L20 DVF-2 Troubleshooting Qualified Technicians Only ALL ModelsTroubleshooting Check List Qualified Technicians Only Model L20 BF-2 only Spill SwitchSpillage Test Procedure Replacement Parts Models L20BF-2 & L20 DVF-2 Item # Catalog # Description Where UsedOptional Accessories Models L20BF-2 & L20 DVF-2 Item # Catalog # Model DescriptionSpecifications Model L20 BF-2 Top View Side ViewSpecifications Model L20 DVF-2 SAFETY/ Listing Label Rating Plate SAFETY/ Listing Label Rating Plate Service and Maintenance LOG Ownership Records775,021M 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.