Lennox Hearth L20 BF-2 manual Installation Model L20 DVF-2 only, SV4MCK

Page 9

INSTALLATION - MODEL L20 DVF-2 ONLY

Direct Vent Retrofit Of Existing Chimney System - An existing Class-A (wood-burning) Metal Chimney or Masonry Chimney can be converted to a direct vent system. Use one of the following chimney conversion kits listed below. Have the existing chimney system inspected by a professional prior to the conversion. If using Simpson Dura-Vent brand liner kit, see “IMPORTANT” note at the top of page 8. The chimney conversion should not be applied to the portion of the vent system that is in the room of the appliance. Use only Co-Axial direct vent pipe (4” inner pipe, 6 5/8” outer pipe as listed on page 8) from the appliance to the retro-connector into converted flue system. Adhere to all specifications shown on pages 6 and 7 regarding clearances to combustibles, vertical and horizontal vent length minimums and maximums, etc. Read all instructions in this manual and provided by vent manufacturer with kit carefully before starting the installation. Failure to follow the instructions may create a fire or other safety hazard, and will void the warranty.

Model #

Brand: SECURITY / Description

Model #

Brand: SIMPSON DURA-VENT / Description

SV4MCK

Masonry Chimney Conversion Kit –Vertical term. Cap,

934

Masonry Chimney Conversion Kit

 

cap adapter, masonry cover, black adapter (to flex), 2

 

 

 

gear clamps

 

 

SV4CCK1

Factory Built Chimney Conversion Kit – for 6” I.D., 1”

931

Factory Built Chimney Conversion Kit A – for 6”

 

insulation.

 

I.D.; Only compatible w/specific brands – Contact

 

 

 

Vent Manufacturer

SV4CCK2

Factory Built Chimney Conversion Kit – for 7” I.D., 1”

932

Factory Built Chimney Conversion Kit B – for 6”, 7”

 

insulation; 8” I.D., 1” insulation; 6” I.D., 2” insulation.

 

& 8” I.D.; Only compatible w/specific brands –

 

 

 

Contact Vent Manufacturer

SV4CCK3

Factory Built Chimney Conversion Kit – for 10” I.D., 1”

933

Factory Built Chimney Conversion Kit C – for 7” &

 

insulation; 7” I.D., 2” insulation; 8” I.D., 2” insulation.

 

8” I.D.; Only compatible w/specific brands – Con-

 

 

 

tact Vent Manufacturer

MODELS L20 BF-2 AND L20 DVF-2

VERTICAL VENT TERMINATION REQUIREMENTS

These instructions should be used as a guideline and do not supersede local codes in any way. Install vent according to local codes, these instructions, the current National Fuel Gas Code (ANSI-Z223.1) in the USA or the current standards of CAN/CGA-B149.1 and - B149.2 in Canada.

Terminate multiple vent terminations according to the installation codes listed above.

Terminate single vent caps relative to building components according to the following chart & illustration. The vent/air intake termina- tion clearances above the high side of an angled roof is as shown in the following chart:

Termination Heights For Vents

Above Flat or Sloped Roofs

Horizontal Overhang

Roof Pitch

Feet

Meters

Flat to 6/12

1

0.3

6/12 to 7/12

1.25

0.38

7/12 to 8/12

1.5

0.46

8/12 to 9/12

2

0.61

9/12 to 10/12

2.5

0.76

10/12 to 11/12

3.25

0.99

11/12 to 12/12

4

1.22

12/12 to 14/12

5

1.52

14/12 to 16/12

6

1.83

16/12 to 18/12

7

2.13

18/12 to 20/12

7.5

2.29

20/12 to 21/12

8

2.44

Venting terminals shall not be recessed into a wall or siding.

Ref. NFPA 54 / ANSI Z223.1, 7.6, fig. 13: Gas Vent Termination locations for listed Caps, 12 inches or less in size, at least 8 feet from a vertical wall.

2 Ft. Min.

Vent

Termination

Storm

Collar

Flashing

Concentric Vent Pipe

2 Ft. Min.

Lowest

Discharge

Opening

* H

X

12

Roof Pitch is X/12

1 inch (25.4 mm) Minimum Clearance to Combustibles

*H = Minimum height from roof to lowest discharge opening of vent.

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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 Local and National Code Requirements Planning Your InstallationTool / Equipment List LOW HighQuestions to ASK the Local Building Official Important Notes Manufactured Mobile Home RequirementsRear Wall or Alcove CornerVertical 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 ModelsCare and Operation ALL Models For Your Safety Read Before LightingGas Control Knobs Lighting and Shutdown InstructionsALL Models BREAK-IN Period Combustion Chamber Relief DoorCirculation Blower Operation Propane Conversion Procedure Parts ListPropane Conversion CanadaBurner Flame Appearance Reference InformationMaintenance ALL Models Periodic Check of Pilot and Burner Flames Air Shutter AdjustmentCycle unit a minimum of 2 times Pilot Flame AppearanceWiring 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.