Lennox Hearth LBV-3824MP-H User Manual
INSTALLATION
INSTRUCTIONS
B-VENT ELITE® SERIES
B-VENTED GAS APPLIANCES
P/N 504,137M REV. L 03/2007
This appliance may be installed in an aftermarket permanently located, manufactured home
(USA only) or mobile home, where not prohibited by local codes. This appliance is only for use
with the type of gas indicated on the rating plate.
This appliance is not convertible for use with other
gases, unless a certified kit is used.
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
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.
MODELS
Millivolt Models Electronic Models
LBV-3824MN LBV-3824EN
LBV-3824MP LBV-3824EP
LBV-3824MN-H LBV-3824EN-H
LBV-3824MP-H LBV-3824EP-H
LBV-4324MN LBV-4324EN
LBV-4324MP LBV-4324EP
LBV-4324MN-H LBV-4324EN-H
LBV-4324MP-H LBV-4324EP-H
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE
LES INSTRUCTIONS DONNÉ DANS CETTE NOTICE POUR
RÉDUIRE AU MINIMUM LE RISQUE D'INCENDIE OU
POUR ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE
BLESSURE OU LA MORT.
POUR VOTRE SÉCURITÉ: Ne pas entreposer ni utiliser
d'essence ni d'autre vaperurs 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.
• Appeflez 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.
OTL Report No. 116-F-18-05
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
L'installation et service doit être exécuté par un qualifié
installer, agence de service ou le fournisseur de gaz.
1
TABLE OF CONTENTS
PACKAGING
GENERAL INFORMATION
Packaging........................................ page 2
Introduction..................................... page 2
General Information......................... page 2
Location .......................................... page 3
Appliance Specifications.................. page 4
Clearances ....................................... page 4
Gas Vent Rule.................................. page 4
Framing Specifications .................... page 5
Assembly Steps............................... page 5
Installation....................................... page 6
Vent System Installation.................. page 7
Field Wiring ..................................... page 7
Connecting Gas Line........................ page 8
Outside Air Kit Installation ............... page 8
Log and Rockwool Installation ........ page 9
Appliance Operation ........................ page 10
Manual Limit Switch........................ page 10
Millivolt Appliance Checkout............ page 11
Electronic Appliance Checkout......... page 11
Adjustments .................................... page 11
Finishing Requirements................... page 12
Cold Climate Insulation.................... page 12
Installation Accessories................... page 12
Gas Conversion Kits.................. page 13
This installation manual will help you obtain a
safe, efficient, dependable installation for your
appliance and vent system.
Please read and understand these
instructions before beginning your
installation.
2
The assembled vented gas fireplace is packaged with:
1 -one cartoned log set located in firebox
area.
2 - one bag of glowing embers (rockwool)
located in the bottom compartment.
3 - one envelope containing the literature
package which consists of the homeowner's
manual, installation instructions, and warranty; envelope is located in the control area.
4 - one B-Vent Connector taped to the top of
the unit.
INTRODUCTION
The millivolt appliances are designed to operate on either natural or propane gas. A millivolt
gas control valve with piezo ignition system
provides safe, efficient operation.
The electronic appliances are designed to operate on either natural or propane gas. An
electronic intermittent pilot system provides
safe, efficient operation. External electrical
power is required to operate these units.
These appliances comply with National Safety
Standards and are tested and listed by OmniTest Laboratories (Report No. 116-F-18-5) to
ANSI Z21.50b-2002 (in Canada, CSA-2.22b-
2002), and CAN/CGA-2.17-M91 in both USA
and Canada, as vented gas fireplaces.
Installation must conform to local codes. In
the absence of local codes, installation must
comply with the current National Fuel Gas
Code, ANSI Z223.1 (NFPA 54). (In Canada, the
current CAN/CGA B149 installation code.) Electrical wiring must comply with local codes. In
the absence of local codes, installation must
be in accordance with the National Electrical
Code, NFPA 70 - (latest edition). (In Canada,
the current CSA C22.1 Canadian Electric Code.)
DO NOT ATTEMPT TO ALTER OR MODIFY
THE CONSTRUCTION OF THE APPLIANCE OR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY,
CERTIFICATION AND LISTINGS OF THIS UNIT.
WARNING: IMPROPER INSTALLATION,
ADJUSTMENT, ALTERATION, SERVICE
OR MAINTENANCE CAN CAUSE INJURY
OR PROPERTY DAMAGE. REFER TO THIS
MANUAL. FOR ASSISTANCE OR ADDITIONAL INFORMATION CONSULT A
QUALIFIED INSTALLER, SERVICE
AGENCY OR THE GAS SUPPLIER.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Note: Installation and repair should be performed by a qualified service person. The appliance should be inspected annually by a qualified professional service technician. More frequent inspections and cleanings may be required due to excessive lint from carpeting,
bedding material, etc. It is imperative that the
control compartment, burners and circulating
air passage ways of the appliance be kept clean.
S'assurer que le brùleur et le compartiment des
commandes sont propres. Voir les instructions d'installation et d'utilisation qui
accompagnent l'apareil.
Provide adequate clearances around air openings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.
WARNING: THESE FIREPLACES ARE
VENTED DECORATIVE GAS APPLIANCES.
DO NOT BURN WOOD OR OTHER MATERIAL IN THESE APPLIANCES.
These appliances are designed to operate on
natural or propane gas only. The use of other
fuels or combination of fuels will degrade the
performance of this system and may be dangerous.
Input of appliances are 45,000 and 50,000 BTU/
HR for LBV-3824 and LBV-4324 respectively.
Gas Orifice Size
Type Elevation
LBV-3824
LBV-4324
Nominal operating pressures for the manifold
side of the gas control system are; 3.5 inches
water column (0.87 kPa) for natural gas models and 10 inches water column (2.49 kPa) for
propane gas models.
Do not use these appliances if any part has been
under water. Immediately call a qualified, professional service technician to inspect the appliance and to replace any parts of the control
system and any gas control which have been
under water.
Ne pas se servir de cet appareil s'il a été plongé
dans l'eau, complètement ou en partie. Appeler
un technicien qualifié pour inspecter l'appareil et
remplacer toute partie du système de contrôle et
toute commande qui ont été plongés dans l'lau.
Natural
0.125
in.
#30
Propane
#48
#47
0 - 4500'
(0 - 1370 m)
0 - 4500'
(0 - 1370 m)
This appliance may be installed in an aftermarket permanently located, manufactured
home (USA only) or mobile home, where not
prohibited by local codes. This appliance is
only for use with the type of gas indicated
on the rating plate. This appliance is not convertible for use with other gases, unless a
certified kit is used.
Cet appareil peut être installé dans un maison
préfabriquée (É.-U. seulement) ou mobile déjà
installée à demeure si les réglements locaux
le permettent. Cet appareil doit être utilisé
uniquement avec les types de gaz indiqués
sur la plaque signalétique. Ne pas l'utiliser
avec d'autres gaz sauf si un kit de conversion
certifié est installé.
Millivolt appliances may be fitted at time of
manufacture with either a Honeywell millivolt
gas control valve or as SIT millivolt gas control
valve. Both valves have been tested with and
approved for use with these appliances and are
listed accordingly.
Test gage connections are provided on the front
of the millivolt gas control valves (identified OUT
for the manifold side and IN for inlet pressure
side for both SIT and Honeywell equipped appliances. A ¹⁄₈" NPT test gage connection is provided on the electronic gas control valve adjacent to the outlet to the main burner.
Minimum inlet gas pressure to the appliance is
5.0 inches water column (1.24 kPa) for natural
gas and 11 inches water column (2.74 kPa) for
propane for the purpose of input adjustment.
Maximum inlet gas supply pressure to the
appliance is 10.5 inches water column (2.61kPa)
for natural gas and 13.0 inches water column
(3.23 kPa) for propane.
The appliance must be isolated from the gas
supply piping system (by closing its individual
manual shut-off valve) during any pressure
testing of the gas supply piping system at test
pressures equal to or less than ¹⁄₂ psig (3.5)
kPa).
The appliance and its individual shut-off valve
must be disconnected from the gas supply
piping system during any pressure testing of
that system at pressures in excess of ¹⁄₂ psig
(3.5 kPa).
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
Do not place clothing or other materials on or
near this appliance.
WARNING: FAILURE TO COMPLY WITH
THE INSTALLATION AND OPERATING INSTRUCTIONS PROVIDED IN THIS DOCUMENT WILL RESULT IN AN IMPROPERLY INSTALLED AND OPERATING APPLIANCE, VOIDING ITS WARRANTY. ANY
CHANGE TO THIS APPLIANCE AND/OR
ITS OPERATING CONTROLS IS DANGEROUS. IMPROPER INSTALLATION OR USE
OF THIS APPLIANCE CAN CAUSE SERIOUS INJURY OR DEATH FORM FIRE,
BURNS, EXPLOSION OR CARBON MONOXIDE POISONING.
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to the
flu with headaches, dizziness and/or nausea. If
you have these signs, obtain fresh air immediately. Turn off the gas supply to the appliance
and have it serviced by a qualified professional, as it may not be operating correctly.
WARNING: B-VENT APPLIANCES ARE NOT
DESIGNED TO OPERATE IN NEGATIVELY
PRESSURED ENVIRONMENTS (PRESSURE
WITHIN THE HOME IS LESS THAN PRESSURES OUTSIDE). SIGNIFICANT NEGATIVELY PRESSURED ENVIRONMENTS
CAUSED BY WEATHER, HOME DESIGN,
OR OTHER DEVICES MAY IMPACT THE
OPERATION OF THESE APPLIANCES.
NEGATIVE PRESSURES MAY RESULT IN
POOR FLAME APPEARANCE, SOOTING,
DAMAGE TO PROPERTY AND/OR SEVERE
PERSONAL INJURY. DO NOT OPERATE
THESE APPLIANCES IN NEGATIVELY PRESSURED ENVIRONMENTS.
WARNING: CHILDREN AND ADULTS
SHOULD BE ALERTED TO THE HAZARDS
OF HIGH SURFACE TEMPERATURES. USE
CAUTION AROUND THE APPLIANCE TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE CAREFULLY SUPERVISED WHEN THEY ARE IN
THE SAME ROOM AS THE APPLIANCE.
WARNING: DO NOT PLACE CLOTHING
OR OTHER FLAMMABLE MATERIALS
ON OR NEAR THIS APPLIANCE.
AVERTISSEMENT: SURVEILLER LES
ENFANTS. GARDER LES VÊTEMENTS,
LES MEUBLES, L'ESSENCE OU AUTRES
LIQUIDES À VAPEUR INFLAMMABLES
LIN DE L'APPAREIL.
WARNING: THIS APPLIANCE MAY ONLY
BE FITTED WITH DOORS CERTIFIED FOR
USE WITH THE APPLIANCE.
AVERTISSEMENT: POUR UTILISATION
UNIQUEMENT AVEC LES PORTES EN
VERRE CERTIFIÊES AVEC L'APPAREIL.
These appliances are equipped with an integral combustion air door and actuator arm.
Combustion air kits are optional and must be
installed before removing the securing screw
allowing the movement of the combustion
air actuator arm (see Step 7 on page 8).
LOCATION
Typical Locations
Figure 1
In selecting the location, the aesthetic and functional use of the appliance are primary concerns.
However, vent system routing to the exterior and
access to the fuel supply are also important. Due
to high temperatures the appliance should be
located out of traffic and away from furniture and
draperies. Consideration should be given to traffic ways, furniture, draperies, etc., due to elevated surface temperatures. The location should
also be free of electrical, plumbing or other
heating/air conditioning ducting.
The appliance should be mounted on a fully
supported base extending the full width and
depth of the unit. The appliance may be located
on or near conventional construction materials. However, if installed on combustible materials, such as carpeting, vinyl tile, etc., a metal
or wood barrier covering the entire bottom
surface must be used.
These appliances may be used for bedroom
installations in the United States and are listed
accordingly. These units may not be installed
in bedrooms in Canada.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
3
APPLIANCE SPECIFICATIONS
CLEARANCES
15 ¹⁄₂"
Combustion
Air Inlet
3 ¹⁄₂"
11 ¹⁄₂"
8"
7 ¹⁄₄"
11"
24 ⁵⁄₈"
49 ³⁄₄"
12 ⁷⁄₁₆"
3824 - 38"
4324 - 43 ¹⁄₂"
3824 - 48"
4324 - 52 ³⁄₄"
Front View
Gas Line
Access
3824 - 5"
4324 - 4 ³⁄₈"
6 ¹⁄₂"
10 ¹⁄₂"
3 ¹⁄₄"
44 ¹⁄₈"
44 ¹⁄₈"
49 ³⁄₄"
Minimum clearance to combustibles for the appliance is as follows: sides and back - ¹⁄₂" (13
mm), floor - 0" (0 mm), adjacent wall - 0" (0 mm),
ceiling - 37 ¹⁄₂" (953 mm).
Venting
Gas Vent Rule – Gas vent caps are not permit-
ted within 8 feet (2.4 mm) of a vertical wall or
similar obstruction. Gas vent caps that are
located 8' or more from a portion of a building
which extends at an angle greater than 45°
upward from the horizontal may terminate in
accordance with
that in no case shall any discharge opening on
the cap be less than 2' (610 mm) horizontally
from the roof surface (National Fuel Gas Code
ANSI Z223.1 (NFPA 54) 7.6.2) (CAN/CGA
B149).
Figure 3
Table 1 (Figure 3)
Roof Pitch is X/12
Minimum Height from Roof
to Lowest Discharge Opening
, provided
X
12
4
Figure 2
Electrical Outlet
Left Side View
25 ⁵⁄₈"
9 ³⁄₄"
Junction
Box
3824 - 26 ⁵⁄₁₆"
4324 - 31 ¹⁄₁₆"
8"
B-Vent
3824 - 48"
4324 - 52 ³⁄₄"
Top View
25 ⁵⁄₈"
Gas Line
Access
Right Side View
25 ⁵⁄₈"
3824 - ⁵⁄₈"
4324 - ¹⁄₂"
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Minimum Height
from Roof to Lowest
Roof Slope
Discharge Opening
Feet Meters
Flat to 6/12 1' 0" 0.3
Over 7/12 to 9/12 2' 0" 0.6
Over 10/12 to 12/12 4' 0" 1.2
Over 13/12 to 16/12 6' 0" 1.8
Over 17/12 to 21/12 8' 0" 2.4
Note: Venting terminals shall not be recessed
into a wall or siding.
Table 1
FRAMING SPECIFICATIONS
B
A
Fireplace Framing
Figure 4
FOAK
Combustion
Air Kit
Figure 5
Optional Locations
FOAK
Combustion
Air Kit
J
Rough Framing Face
(Unfinished Shown)
Figure 6
Inside Chase
Back Wall of Chase/Enclosure
Including Finising Materials
C
A
Back Wall of Chase/Enclosure
Including Finishing Materials
FATO Adapter
(Optional)
Outside Chase
HH
(Unfinished Shown)
C
A
Header
if any
Framing Face
G
Rough
if any
G
Back Wall of Chase/Enclosure
FOAK-4
Combustion
Air Kit
Including Finishing Materials
K
D
C
A
E
Corner Installation
if any
(Unfinished Shown)
Figure 7
Framing Dimensions
Fireplace Opening Width
3824
A
B
C
D
E
F
G
H
J
K
48 ¹⁄₈"
(1222 mm)
50"
(1270 mm)
26 ¹⁄₄"
(667 mm)
13 ¹⁄₈"
(334 mm)
77 ¹⁄₄"
(1962 mm)
38 ⁵⁄₈"
(981 mm)
25 ⁵⁄₈"
(650 mm)
4"
(102 mm)
11"
(279 mm)
54 ⁵⁄₈"
(1388 mm)
(1343 mm)
(1270 mm)
(2083 mm)
(1041 mm)
(1473 mm)
Note: All framing dimensions calculated for 1/2" dry wall at the appliance
face. If sheathing the chase or finishing with other thickness materials, calculations will need to be made.
Framing Face
4324
52 ⁷⁄₈"
50"
31"
(787 mm)
15 ¹⁄₂"
(394 mm)
82"
41"
25 ⁵⁄₈"
(650 mm)
4"
(102 mm)
11"
(279 mm)
58"
G
Rough
ASSEMBLY STEPS
The typical sequence of installation follows,
however, each installation is unique resulting
in variations to those described.
1. Construct the appliance framing.
F
2. Route gas supply line to appliance location.
3. Position the appliance.
4. Install the vent system and exterior termina-
tion.
5. Field wire and install operating control switch.
6. Make connection to gas supply.
7. Install (optional) outside Air Kit.
8. Install the logs and rockwool.
9. Checkout appliance operation.
10. Adjust burner to ensure proper flame ap-
pearance.
PRE-INSTALLATION NOTES
The fireplace may be installed directly on a
combustible floor or raised on a platform of an
appropriate height. Do not place fireplace on
carpeting, vinyl or other soft floor coverings. It
may, however, be placed on flat wood, plywood, particle board or other hard surfaces. Be
sure fireplace rests on a solid continuous floor
or platform with appropriate framing for support and so that no cold air can enter the room
from under the fireplace.
The fireplace may be positioned and then the
framing built around it, or the framing may be
constructed and the fireplace positioned into
the opening.
Usually, no special floor support is needed for
the fireplace, however, to be certain:
1. Estimate the total weight of the fireplace
system and surround materials such as brick,
stone, etc., to be installed.
2. Measure the square footage of the floor
space to be occupied by the system, surrounds
and hearth extensions.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
3. Note the floor construction, i.e. 2 x 6’s, 2 x
8’s or 2 x 10’s, single or double joists, type and
thickness of floor boards.
5
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