Lennox L20 DVF-2 User Manual
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POUR VOTRE SÉCURITÉ
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INSTALLATION AND OPERATION
FREESTANDING VENTED GAS FIRED ROOM HEATERS
L20 DVF-2 shown with optional gold door and brickaded interior
MANUAL
Models: L20 BF-2 (B-Vent) and L20 DVF-2 (Direct-Vent)
Report #189122-1027389
WARNING: IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY
DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
FOR YOUR SAFETY: Do not store or use gasoline
or other flammable vapors or liquids in the vicinity of this or any other appliance.
FOR YOUR SAFETY: What to do if you smell gas:
• DO NOT light any appliance.
• DO NOT touch any electrical switches.
• Do not use any phone in your building.
• Immediately call your gas supplier from
a neighbor’s phone. Follow your gas
suppliers instructions.
• If your gas supplier cannot be reached, call
the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
Model L20 DVF-2 may be installed in an aftermarket permanently located,
RETAIN THIS MANUAL FOR FUTURE REFERENCE
P/N 775
manufactured
mobile) home, where not proh
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE LES
021M Rev. C, 8/04
ited by local code
INSTRUCTIONS DONNÉ DANS CETTE NOTICE POUR
RÉDUIRE AU MINIMUM LE RISQUE D’INCENDIE OU
POUR ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE
BLESSURE OU LA MORT.
: Ne pas entreposer ni ut
d’essence ni d’autre vapeurs ou liquides inflammables dans
le voisinage de cet appareil ou de tout autre appareil.
POUR VOTRE SÉCURITÉ: Que faire si vous sentez une
odeur de gaz:
• Ne pas tenter d’allumer d’appareil.
• Ne touchez à aucun interrupteur. Ne pas vous
servir des téléphones se trouvant dans le batiment
où vous vous trouvez.
• Evacuez la piéce, le bâtiment ou la zone.
• Appelez immédiatement votre fournisseur de gaz
depuis un voisin. Suivez les instructions du
fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de gaz, appelez le service dos incendies.
L’installation et service doit être exécuté par un qualifié
installeur, agence de service ou le fournisseur de gaz.
ser
IMPORTANT WARNINGS / CAUTIONS
CAUTION: READ THIS MANUAL THOROUGHLY BEFORE STARTING INSTALLATION. FOR YOUR SAFETY,
FOLLOW THE INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS EXACTLY WITHOUT DEVIATION. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A POSSIBLE FIRE HAZARD AND
MAY VOID THE WARRANTY. IF THIS APPLIANCE IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY RESULT. CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION IN YOUR AREA.
1. WARNING: IMPROPER ASSEMBLY, INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE INJURY AND / OR PROPERTY DAMAGE. INSTALLATION AND SERVICE MUST BE PERFORMED BY A
QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS
SUPPLIER. EXCEPT WHEN COMPLYING WITH LOCAL
CODES, ANY DEVIATION FROM THE INSTALLATION AND /
OR OPERATING INSTRUCTIONS CONTAINED IN THIS
MANUAL WILL VOID THE APPLIANCE WARRANTY AND
MAY BE HAZARDOUS.
2. DUE TO HIGH TEMPERATURES, THIS APPLIANCE SHOULD
BE LOCATED OUT OF TRAFFIC AND AWAY FROM FURNITURE, DRAPERIES AND NOT IN WINDY OR DRAFTY AREAS.
3. THE APPLIANCE MUST NOT BE CONNECTED TO A CHIMNEY FLUE SERVING A SEPARATE SOLID-FUEL BURNING
APPLIANCE.
4. MODEL L20 DVF-2 IS EQUIPPED WITH A RELIEF DOOR IN
CASE OF DELAYED IGNITION BLOWBACK. IF THE RELIEF
DOOR OPENS, REMOVE BACK PANEL AND INSPECT FOR
GASKET DAMAGE. IF NECESSARY, REPLACE WITH FACTORY SUPPLIED GASKET ONLY. CONFIRM RELIEF DOOR
IS CLOSED AND PROPERLY SEATED, THEN REPLACE
BACK PANEL.
5. CAUTION: HOT WHILE IN OPERATION. AN APPLIANCE HOT
ENOUGH TO WARM YOUR HOME CAN SEVERELY BURN
ANYONE TOUCHING IT. KEEP CHILDREN, CLOTHING AND
FURNITURE AWAY. CONTACT MAY CAUSE SKIN BURNS. DO
NOT LET CHILDREN TOUCH THE APPLIANCE. TRAIN THEM
TO STAY A SAFE DISTANCE FROM THE UNIT.
6. DO NOT PLACE CLOTHING OR OTHER FLAMMABLE MATERIAL ON OR NEAR THE GAS APPLIANCE. THE MINIMUM
CLEARANCES MUST BE MAINTAINED FOR ALL COMBUSTIBLE SURFACES AND MATERIALS INCLUDING; FURNITURE,
CARPET, DRAPES, CLOTHING, WOOD, PAPERS, ETC.
7. NEVER SEAL THE OPENING AT THE REAR OF THE STOVE.
8. DO NOT CONNECT 110-12 VAC (RESIDENTIAL LINE VOLTAGE) TO THE GAS CONTROL VALVE OR CONTROL WIRING
SYSTEM OF THE UNIT.
9. ANY SAFETY SCREEN OR GUARD REMOVED FOR SERVICING MUST BE REPLACED PRIOR TO OPERATING THE APPLIANCE.
10. WARNING: USE ONLY THE GLASS DOOR CERTIFIED WITH
THIS APPLIANCE. EXERCISE CAUTION TO PROTECT
GLASS FROM IMPACT. DO NOT OPERATE THE APPLIANCE WITH BROKEN GLASS OR USE SUBSTITUTE MATERIALS.
11. DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN
UNDER WATER. IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE APPLIANCE AND REPLACE ANY PART OF THE CONTROL SYSTEM AND GAS
CONTROL WHICH HAS BEEN UNDER WATER.
12. DO NOT BURN WOOD OR OTHER MATERIAL IN THIS
HEATER.
13. WARNING: THE APPLIANCE AREA MUST BE KEPT CLEAR
AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE
AND OTHER FLAMMABLE VAPORS AND LIQUIDS.
14. DO NOT USE A BLOWER INSERT, HEAT EXCHANGER INSERT OR OTHER ACCESSORY NOT APPROVED FOR USE
WITH THIS APPLIANCE.
15. THIS APPLIANCE IS NOT FOR USE WITH AIR FILTERS.
16. ANY CHANGE TO THIS HEATER OR ITS CONTROLS CAN
BE DANGEROUS.
17. THIS APPLIANCE SHOULD BE INSPECTED AND MAINTAINED AT LEAST ANNUALLY BY A PROFESSIONAL SERVICE PERSON. MORE FREQUENT CLEANING MAY BE REQUIRED DUE TO EXCESSIVE LINT FROM CARPETING,
BEDDING MATERIAL, ETC. IT IS IMPERATIVE THAT CONTROL COMPARTMENTS, BURNERS AND CIRCULATING
AIR PASSAGEWAYS OF THE APPLIANCE BE KEPT CLEAN.
18. THIS APPLIANCE IS ONLY FOR USE WITH THE TYPE OF
GAS INDICATED ON THE RATING LABEL (LOCATED INSIDE CONTROL PANEL). THIS APPLIANCE IS NOT CONVERTIBLE FOR USE WITH OTHER FUEL UNLESS A CERTIFIED KIT IS USED.
19. CAUTION: UNDER NO CIRCUMSTANCES SHOULD THESE
APPLIANCES BE VENTED TO OTHER ROOMS OR BUILDINGS. THESE APPLIANCES MUST ONLY BE VENTED TO
THE OUTSIDE. VENT TERMINATIONS SHALL NOT BE RECESSED INTO A WALL OR SIDING.
20. WARNING: THESE APPLIANCES MUST BE PROPERLY
CONNECTED TO A VENTING SYSTEM. OPERATION OF
THESE GAS APPLIANCES WHEN NOT CONNECTED TO A
PROPERLY INSTALLED AND MAINTAINED VENTING SYSTEM CAN RESULT IN CARBON MONOXIDE (CO) POISONING AND POSSIBLE DEATH.
21. WARNING: DO NOT MODIFY THE VENTING SYSTEM, APPLIANCE, OR CONTROLS IN ANY WAY. BE ADVISED, ANY
MODIFICATION CAN BE DANGEROUS.
22. IMPORTANT: DO NOT EXCEED THE MAXIMUM HORIZONTAL RUNS ALLOWED.
23. SAVE THESE INSTRUCTIONS.
PAGE 2
TABLE OF CONTENTS
Important Warnings ........................................................ 2
Testing / Listing, Using this Manual ................................. 3
Planning Your Installation ..............................................4-6
Manufactured (Mobil) Home Requirements....................... 6
Installation ...................................................................7-15
Care and Operation.....................................................16-17
Propane Conversion ...................................................18-19
Maintenance...............................................................20-21
Wiring Diagrams ............................................................. 22
Troubleshooting .........................................................23-24
Replacement Parts / Optional Accessories....................... 25
Specifications.............................................................27-28
Safety / Listing Labels ................................................29-30
Ownership Record and Service Log................................. 31
TESTING / LISTING
This appliance is tested and certified as safe for residential use
by an internationally recognized testing and certification
agency. The safety tests are conducted in accordance with
American National Standards Institute (ANSI) requirements.
These appliances are tested, certified, and listed by the CSA,
AGA, CGA to ANSI Z21.88a - 2003 Vented Gas Fireplace Heaters and CSA 2.33a - M98 - 2003 Vented Gas Fireplace Heaters.
APPROVED VENTING:
L20 DVF-2
Vent chimney or Simpson Dura Vent brand chimney
only. Other brands may not be used. See pages 8 and 9.
L20 BF-2
components installed in accordance with manufacturers
instructions. See page 11.
Listed for installation with Security Secure
May be vented with any listed class B chimney
CONGRATULATIONS ON THE PURCHASE OF YOUR NEW GAS
APPLIANCE MANUFACTURED BY LENNOX HEARTH PRODUCTS.
When you purchased your new gas fired heater, you joined
the ranks of thousands of concerned individuals whose answer to their home heating needs reflects their concern for
aesthetics, efficiency and our environment. We extend our
continued support to help you achieve the maximum benefit
and enjoyment available from your new gas fired heater.
It is our goal at Lennox Hearth Products to provide you, our
valued customer, with an appliance that will ensure you
years of trouble free warmth and pleasure.
Thank you for selecting a Lennox Hearth Products gas fired
heater as the answer to your home heating needs.
Sincerely,
All of us at Lennox Hearth Products
PACKAGING LIST
This appliance is packaged with an accessory package, which
contains the following:
One - Installation and operation instructions manual.
One - Warranty.
One - Log set and embers.
One - LP conversion kit.
One - 9 ft. electrical power cord.
USING THIS MANUAL
Please read and carefully follow all of the instructions found in
this manual. Please pay special attention to the safety instructions provided in this manual. Following the Homeowner’s
Care and Operation Instructions included here will assure that
you have many years of dependable and enjoyable service
from your appliance.
PAGE 3
PLANNING YOUR INSTALLATION
LOCAL AND NATIONAL CODE REQUIREMENTS
The installation of these appliances must conform with local
codes or, in the absence of local codes, with the National Fuel
Gas Code, (for USA) NFPA 54 / ANSI Z223.1 - latest edition.
Air Circulation Blower: The blower electrical power cord must
be electrically grounded per local codes or per electrical codes:
In USA
In Canada
ELECTRICAL GROUNDING INSTRUCTIONS. THIS
APPLIANCE IS EQUIPPED WITH A THREE-PRONG
(GROUNDING) PLUG FOR YOUR PROTECTION
AGAINST SHOCK HAZARD AND SHOULD BE
PLUGGED DIRECTLY INTO A PROPERLY GROUNDED
THREE-PRONG RECEPTACLE. DO NOT CUT OR REMOVE THE GROUNDING PRONG FROM THIS PLUG.
WARNING: TO AVOID ELECTRICAL SHOCK, ALWAYS
ENSURE THAT THE POWER CORD IS UNPLUGGED
(I.E., THERE IS NO ELECTRICAL POWER TO THE
CIRCULATION BLOWER) BEFORE HANDLING THE
CIRCULATION BLOWER OR PERFORMING ANY
WORK ON THE APPLIANCE.
High Altitude: Gas inputs shown are for elevations up to 4500
feet. For elevations above 4500 feet, contact your gas supplier
or qualified service technician regarding the necessary deration of appliance (deration: replacing burner orifice with a
smaller one to reduce input). Ratings must be reduced at the
rate of 4 percent for each 1,000 feet above sea level. Refer to
(for USA) NFPA 54 / ANSI Z223.1 - latest edition for orifice
resizing.
TOOL / EQUIPMENT LIST
The following tools and equipment are recommended for completing the partial assembly required when the appliance is
installed:
• 7/16”, 3/4” open end wrenchs.
• 1/4”, 3/8” nut drivers.
• Pipe wrench.
• Phillips head screw driver.
• Flat head screw driver.
• Pipe sealant compound.
• Leak test fluid “U” tube manometer or pressure gauge
(0 - 16” (inches water column) H2O scale.
, NEC, ANSI / NFPA 70 - latest edition.
, CSA C22.1
WARNINGS
GAS PRESSURE (WC = Water Column)
Minimum inlet gas supply pressure for the purpose of input
adjustment:
Natural Gas - 4.5” WC min. – 7.0” WC max.
Propane (LP) - 11” WC min - 13.0” WC max.
Manifold gas supply pressure:
LOW HIGH
Natural Gas - 1.8” + / -.3” WC (to) 3.5” + / -.3” WC
17,000 BTU / hr 26,000 BTU / hr
Propane (LP) 6.6” + / -.3” WC (to) 10” + / -.3” WC
17,000 BTU / hr 24,000 BTU / hr
Note: ” WC = Inches Water Column
PRESSURE TAPS
Gas Inlet Pressure Tap
- Located on bottom left of gas valve.
Gas Outlet (manifold) pressure tap
- Located on bottom right
of gas valve.
Gas Control Valve
Pilot Adjustment Screw
Gas Control Knob
Piezo Igniter
Convertible HI/LO
Regulator
Inlet
Pressure
Tap
Outlet Pressure Tap
Regulator
Cap
Wiring
Terminals
Pressure Testing: See Pressure Testing on page 12.
PAGE 4
PLANNING YOUR INSTALLATION
QUESTIONS TO ASK THE LOCAL BUILDING OFFICIAL
Correct installation is critical and imperative for reducing fire
hazards and perilous conditions that can arise when gas appliances function improperly. The appliance must be installed per
manufacturers’ instructions.
Gas appliance equipment and installations must conform to
appropriate local codes and applicable state and federal requirements. Familiarity with these requirements before installation is essential. Important considerations to discuss with
local building officials include:
1. Applicable codes (i.e. Uniform Mechanical Code, State or
Regional Gas Codes, National Fuel Gas Code)?
2. Local amendments?
3. Recognized testing lab: CSA / AGA.
4. Is a permit required - cost?
5. In some states or municipalities, a licensed gas fitter or
plumber may be required to install this appliance. Check
with your local building official for requirements in your
area (i.e. Is a license required for installation of gas supply
line)?
6. Maximum amount of gas pipe without a pressure test type of test required?
7. Are below grade penetrations of the gas line allowed?
8. Is concealed gas piping allowed?
9. Specific requirements of concealed fittings?
10. Is rigid pipe to appliance required?
11. Allowed piping materials?
12. Shut-off valve required within 4 feet of the firebox?
13. May the shut-off valve be concealed?
14. Rooms where the installation is not allowed?
In the absence of local codes, installation should conform to
the National Fuel Gas Code, also known at ANSI Z223.1NFPA 54.
PAGE 5
PLANNING YOUR INSTALLATION
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MODELS L20 BF-2 AND L20 DVF-2
CLEARANCES TO COMBUSTIBLE MATERIALS
These appliances can be installed in most residential room configurations, parallel to a rear or adjacent wall, or in an alcove that allows for
the minimum clearances to combustible surfaces. Your local building
inspector should review your plans prior to installation.
When installing this appliance, provide adequate clearances around
air openings and adequate clearances for purposes of servicing and
proper operation.
As determined through the safety certification of this unit, a minimum clearance to combustible materials must be maintained around
specific areas of the gas appliance.
(Refer to Figures 1 through 3)
The clearances listed here are minimum distances and only apply in
the configuration shown. Do not use clearances from one installation configuration with clearances from another to obtain closer
clearances.
Top of appliance (min.) 36” (inches)
This includes any projections such as shelves, window sills, mantels, etc.
above the appliance.
Back Wall 2" (inches)
Side Wall 12" (inches)
Corner (45° angle) 2" (inches)
stove corners to wall
Ceiling Minimum 65" (inches) from floor
Alcove Min. Height 65" (inches) from floor
Alcove Min. Width 47" (inches)
Alcove Max. Depth 24" (inches) from unit face.
The stove can not be placed deeper into an alcove than 24” from the stove
face to alcove opening.
Floor 0 inches
MANUFACTURED (MOBILE) HOME REQUIREMENTS
Model L20 DVF-2 may be installed in an aftermarket permanently
located, manufactured home, where not prohibited by local codes.
When installed in Manufactured Housing the following supplemental
requirements must be met:
The appliance must be secured to the floor. Use the (3) ¼”-20x2
¾” bolts (which secured appliance pedestal base to the wooden
pallet) for securing appliance to the manufactured home floor.
The appliance must be grounded to the chassis of the manufac-
tured home. Use a No. 8 or heavier copper wire at least 18" in
length.
Model L20 BF-2 is NOT approved for Manufactured Home installations.
IMPORTANT NOTES:
The structural integrity of the manufactured home floor, walls, ceiling
and roof must be maintained.
A manufactured (mobile) home installation must conform with the
Manufactured Home Construction and Safety Standard, Title 24 CFR,
Part 3280, or, when such a standard is not applicable, the Standard
for Manufactured Home Installations, ANSI / NCSBCS A225.1, or
standard for Gas equipped Recreational Vehicles and Mobile Housing, CSA Z240.4.
Rear Wall or Alcove
65 Inch
(1651 mm)
Min. Ceiling
Height
2” Min.
(51 mm)
Fig. 1
Corner
2” Min.
51 mm
2” Min.
Fig. 2
51 mm
Rear Wall or Alcove
2” Min. (51 mm
12” Min.
305 mm
Fig. 3
Ref. 23” (584 mm)
24” Max. (610 mm
12” Min.
305 mm
FLOOR PROTECTION
When installed directly on carpeting, •tile or other combustible material other than wood flooring, the appliance shall be
installed on a metal or wood panel extending the full width
and depth of the appliance (see notes below).
•
Notes:
1) Ceramic tile is non-combustible and does not require a
wood or metal panel under the appliance. 2) Models with
a pedestal base where base dimensions exceed width and
depth of stove body, qualify as the floor protection
PAGE 6
INSTALLATION - MODEL L20 DVF-2 (DIRECT-VENT) VENTING REQUIREMENTS.
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This appliance is designed to be vented with a 4” x 6 5/8” direct-vent pipe. Each direct-vent appliance must use its own separate
vent system.
VERTICAL TERMINATION WITH
NO OFFSETS
Min. Vertical Pipe Length: 5 feet
Max. Vertical Pipe Length: 25 feet
5 Feet
Min.
25 Feet
Max.
VERTICAL TERMINATION
WITH 2 OFFSETS
Min. Vertical Pipe From Appliance to first offset:
2 feet.
Min. Total Vertical Pipe Length: 5 feet
Max. Total Vertical Pipe Length: 25 feet
For every 1 feet of
vertical pipe (from
unit to first offset), 2
feet of horizontal
run is allowed (not
to exceed 12 ft.
Example – with a 6’ vertical pipe off unit, 12’ of
horiz
ntal run is allowed.
At 2’ Min. Vertical, 2’ Max.
Horizontal is allowed.
5 Feet
Min.
25 Feet
Max.
HORIZONTAL TERMINATION
WITH 1 OFFSET
Min. Vertical Pipe From Appliance to offset: 2
feet.
Max. Vertical Pipe Length: 25 feet
12 Feet Max.
For every 1 feet of v
pipe (from unit to first offset),
2 feet of horizontal run is
allowed (not to exceed 12 ft.
25
Feet
Max.
Example
tical pipe off unit, 12’ of
horizontal run is allowed.
At 2’ Min. Vertical, 2’ Max.
Horizontal is allowed.
with a 6’ ver-
rtical
* 2 Feet Min.
Horizontal
runs require
¼” rise per
foot.
* 2 Feet Min.
Wall
Penetration
Detail
Maximum total offsets allowed: Not to exceed 180 degrees.
Maximum allowable horizontal pipe run is 12 feet.
With 2 feet of vertical pipe installed from the appliance (* see note), a 2 foot maximum horizontal run allowed. For installations with
more than 2 feet of vertical pipe, calculate allowable horizontal run as indicated in applicable illustration above.
See page 10 for Vent Termination Requirements.
Also see pipe manufacturers instructions for additional vent installation requirements.
Horizontal vent clearances
Vertical vent clearances
: 3“ minimum top 1“ minimum on bottom and sidewalls.
: 1” minimum.
Install vent support brackets every 4 feet of vertical pipe unless otherwise specified by vent manufacturer.
* Note: If using Propane Gas (LP), it may be necessary to install (as a minimum) 3 feet of vertical pipe from the appliance prior to an
offset to ensure optimum product performance. This may be necessary due to variations in vent configuration and other numerous factors which affect exhaust flow and air delivery such as BTU value, ambient temperature, wind conditions, altitude, etc.
PAGE 7
INSTALLATION
DIRECT VENT SYSTEM COMPONENTS – MODEL L20 DVF-2 ONLY
The following Direct-Vent system components may be safely used model L20 DVF-2.
Model # Brand: SECURITY / Description Model # Brand: SIMPSON DURA-VENT / Description
SV 0 SHK Standard Horizontal Term. Kit (90° Black Elbow, Firestop (2), Horizon-
tal Square Term. Cap)
SV 0 HK Horizontal Term. Kit (90° Black Elbow, Firestop (2), Horizontal Term.
Cap, adj. Black length 1-1/2 – 6”)
SV 0 FK Vertical Flat Roof Term. Kit (w/flashing, storm collar, vertical Term.
Cap)
SV 0 FAK Vertical pitched Roof Kit, 1/12-7/12 (with adjustable roof flashing,
storm collar, vertical termination cap)
SV 0 FBK Vertical pitched Roof Kit, 8/12-12/12 (with adjustable roof flashing,
storm collar, vertical termination cap)
SV 0 L6 6” Pipe Length (Galvalume) 6” Pipe Length (Galvalume)
SV0 LB6 6” Pipe Length (Black) 908B 6” Pipe Length (Black)
SV 0 9” Pipe Length ( Black) 907B 9” Pipe Length ( Black)
SV 0 L12 12” Pipe Length (Galvalume) 906 12” Pipe Length (Galvanized)
SL 0 LB12 12” Pipe Length (Black) 906B 12” Pipe Length (Black)
SV 0 L24 24” Pipe Length (Galvalume) 904 24” Pipe Length (Galvanized)
SV 0 LB24 24” Pipe Length (Black) 904B 24” Pipe Length (Black)
SV 0 L36 36” Pipe Length (Galvalume) 903 36” Pipe Length (Galvanized)
SV 0 LB36 36” Pipe Length (Black) 903B 36” Pipe Length (Black)
SV 0 L48 48” Pipe Length (Galvalume) 902 48” Pipe Length (Galvanized)
SV 0 LB48 48” Pipe Length (Black) 902B 48” Pipe Length (Black)
N/A N/A 911B 11”-14” Adj. Pipe Length (Black)
SV 0 LA 1 ½- 6” Adj. Pipe Length N/A N/A
SV 0 LBA 1 ½- 6” Adj. Black Pipe Length N/A N/A
SV 0 E45 45 Elbow (Galvalume) 945 45 Elbow (Galvanized)
SV 0 EB45 45 Elbow (Black) 945B 45 Elbow (Black)
SV 0 E90 90 Elbow (Galvalume Swivel) 990G 90 Elbow (Galvanized Swivel)
SV 0 EB90 90 Elbow (Black Swivel) 990BG 90 Elbow (Black Swivel)
SV 0 90 Elbow (Galvalume) 990 90 Elbow (Galvanized)
SV 0 90 Elbow (Black) 990B 90 Elbow (Black)
SV 0 CHC ⊕Horizontal Standard Term. Cap 984 ⊕Horizontal Standard Term. Cap
SV 0 CHCV ⊕Horizontal High Wind Term. Cap N/a ⊕Horizontal High Wind Term. Cap
SV 0 CPB • Vertical Termination Cap 983 • Vertical Termination Cap
SV 0 CGV • Vertical High Wind Cap 991 • Vertical High Wind Cap
SV 0 STC36 ⊗Snorkel Termination Cap 36” 981 ⊗Snorkel Termination Cap 36”
SV 0 STC14 ⊗Snorkel Termination Cap 14” 982 ⊗Snorkel Termination Cap 14”
SV 0 Vinyl Shield Protector 950 Vinyl Siding Standoff
SV 0 VS Round Ceiling Support
/ Wall Thimble Cover
SV 0 CSB Cathedral Ceiling Support Box, decorative square 941 Cathedral Ceiling Support Box
SV 0 SF Black Plate, Decorative N/A N/A
SV 0 Round Ceiling Support Box/Wall
Thimble
SV 0 Storm Collar 953 Storm Collar
SV 0 RSM Wall Radiation Shield N/A N/A
SV 0 BF Firestop N/A N/A
N/A N/A 963 Firestop Spacer
SV 0 F Flashing, Flat Roof (storm collar included)
SV 0 FA Flashing , Adjustabl e r oof 1/12-7 / 1 2 (storm col l ar include d ) 943 Flashing 0 /12-6/12
SV 0 FB Flashing, Adjustable 8/12-12/12 (s torm c olla r incl uded) 943S Flashing 7/12-12/12
SV 0 BM Wall Band 988 Wall Strap
⊗ Snorkel Caps: These are elongate vent termination caps, which incorporate the principles of natural draft into a horizontal installation. Two styles
are common, 14” and 36” (Cap height). They enhance draft and relieve backpressure by creating natural draft in the snorkel.
⊕ Horizontal Caps: This 13 ½” square horizontal cap is placed on the outer wall of the dwelling. Not to be within 9” of an air inlet or within 12” of the
ground. It requires a minimum 2’ rise on the interior pipe.
• Vertical Termination Cap: Low profile and high wind caps can only be used on vertical pipe installations.
970 Basic Horizontal Term. Kit (90° Black Elbow, Wall Thimble Cover,
Horizontal Square Term. Cap)
971 Horizontal Term. Kit A (90° Black Elbow, Wall Thimble Cover, Hori-
zontal Square Term. Cap, adj. 24” black pipe, 11-14 5/8” adj. Black
pipe)
973 Vertical Termination Kit
978 Vertical Pitched Roof Kit, 0/12–6/12 (with adjustable flashing, storm
collar, low profile term. Cap)
N/A N/A
940 Round Ceiling Support
/ Wall Thimble Cover
942 Round Ceiling Support Box/Wall
Thimble
PAGE 8
INSTALLATION - MODEL L20 DVF-2 ONLY
Vent
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,
cap adapter, masonry cover, black adapter (to flex), 2
gear clamps
SV4CCK1 Factory Built Chimney Conversion Kit – for 6” I.D., 1”
insulation.
SV4CCK2 Factory Built Chimney Conversion Kit – for 7” I.D., 1”
insulation; 8” I.D., 1” insulation; 6” I.D., 2” insulation.
SV4CCK3 Factory Built Chimney Conversion Kit – for 10” I.D., 1”
insulation; 7” I.D., 2” insulation; 8” I.D., 2” insulation.
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 termination 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
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.
934 Masonry Chimney Conversion Kit
931 Factory Built Chimney Conversion Kit A – for 6”
I.D.; Only compatible w/specific brands – Contact
Vent Manufacturer
932 Factory Built Chimney Conversion Kit B – for 6”, 7”
& 8” I.D.; Only compatible w/specific brands –
Contact Vent Manufacturer
933 Factory Built Chimney Conversion Kit C – for 7” &
8” I.D.; Only compatible w/specific brands – Contact Vent Manufacturer
2 Ft. Min.
Termination
Storm
Collar
Flashing
Concentric
Vent Pipe
Horizontal Overhang
2 Ft. Min.
Lowest
Discharge
Opening
* H
1 inch (25.4 mm) Minimum
Clearance to Combustibles
* H = Minimum height from roof to
lowest discharge opening of vent.
X
12
Roof Pitch is X/12
PAGE 9
INSTALLATION - MODEL L20 DVF-2 ONLY
HORIZONTAL VENT TERMINATION REQUIREMENTS
The venting terminals should not be recessed into a wall or siding.
A = 2” Clearances above grade, veranda, porch, deck or bal-
cony.
B = 12” Clearance to window or door that may be opened.
C = 9” (USA) Clearance to permanently closed window.
12” (CAN)
D = 24” Vertical clearance to ventilated soffit located above the
terminal within a horizontal distance of 2 feet (60 cm)
from the center-line of the terminal.
E = 12” Clearance to unventilated soffit.
F = 9” Clearance to outside corner.
G = 6” Clearance to inside corner.
H = 3 ft. (USA) Not to be installed above a meter/regulator
assembly within 3 feet (90 cm) horizontally from the
centerline of the regulator.
I = 3 ft. (USA) Clearance to service regulator vent outlet.
6 ft.(CAN)
J = 9” (USA) Clearance to non-mechanical air supply inlet to
building or the combustion air inlet to 12“ (CAN) any
other appliance.
K = 3 ft. (USA) Clearance to a mechanical air supply inlet. 6 ft.
(CAN)
L* = 7 ft. (USA) Clearance above paved side-walk or a paved
driveway located on public property.
M**= 12” Clearance under veranda, porch, deck or balcony
* A vent shall not terminate directly above a side-walk or paved
driveway which is located between two single family dwellings and serves both dwellings.
** Only permitted if veranda, porch, deck or balcony is fully
open on a minimum of 2 sides beneath the floor.
• Note: Local Codes or Regulations may require different clear-
ances.
PAGE 10
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