AVERTISSEMENT : Assurez-vous de bien suivre les
instructions données dans cette notice pour réduire au
minimum le risque d’incindie ou d’explosion ou pour
éviter tout dommage matériel, toute blessure ou la mort.
WARNING: If the information in these instructions
is not followed exactly, a fire or explosion may
result, causing property damage, personal injury,
or death.
WARNING /AVERTISSEMENT/AVISO
• HOT GLASS WILL CAUSE
BURNS.
• DO NOT TOUCH GLASS
UNTIL COOLED.
• NEVER ALLOW CHILDREN
TO TOUCH GLASS.
• UNE SURFACE VITRÉE CHAUDE
PEUT CAUSER DES BRÛLURES.
• LAISSER REFROIDIR LA SURFACE
VITRÉE AVANT D'Y TOUCHER.
• NE PERMETTEZ JAMAIS À UN ENFANT
DE TOUCHER LA SURFACE VITRÉE.
• EL VIDRIO CALIENTE
CAUSARÁ QUEMADURAS.
• USTED DEBE NUNCA
TOCAR EL VIDRIO CALIENTE.
• LOS NIÑOS DEBEN NUNCA
TOCAR EL VIDRIO.
- Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
- WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the fire
department.
- Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
- Ne pas entreposer ni utilizer d’essence ni d’autres vapeurs
ou liquides inflammables dans le voisinage de cet appareil
ou de tout autre appareil.
- QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
• Ne pas tenter d’allumer d’appareil.
• Ne touchez à aucan interrupteur. Ne pas vous servir des
téléphones se trouvant dans le bâtiment où vous trouvez.
• 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 des incindies.
- L’installation et l’entretien doivent être assurés par un
installateur ou un service d’entretien qualifié ou par le
fournisseur de gaz.
Elite Linear View
Direct-Vent Gas Fireplace
P/N 506011-02 Rev. NC 06/2012
This manual is one of a set of two supporting this product.
Refer to P/N 506013-02 for Care and Operation Instructions.
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 506223-37.
MODELS
Intertek Report No.
100404899PRT-001
Please read and understand these instructions
before starting installation.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
INSTALLATEUR : Laissez cette notice avec l’appareil.
CONSOMMATEUR : Conservez cette notice pour
consultation ultérieure.
LDV42N LDV42P
LDV54N LDV54P
Look for the EnerGuide
Gas Fireplace Energy
Efficiency Rating in this manual.
Based on CSA P.4.1-02
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
PACKAGING
ITEMS PACKAGED
WITH FIREPLACE
• Literature Kit (Installation Instructions [this
• Vent restrictor assembly
• Remote control kit (handheld remote
• (1) non-combustible fiber board (shipped
• (1) bag (5 lbs.) media, black glass
OPTIONAL ACCESSORIES
(Sold separately. See “Accessories” section in
fireplace Care and Operation Instructions.)
• Surround Kit (ref. manual 506019-83)
• Gas Conversion Kit (ref. manual
manual], Care and Operation Instructions,
Safety-in-Operation Warnings, Warranty)
control transmitter, remote control
receiver wall switch, 3 AAA batteries,
4 AA batteries)
behind fireplace)
506019-85)
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
IMPORTANT
WARNINGS/NOTICES
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.
WARNING
Failure to comply with these
installation instructions will
result in an improperly installed
and operating appliance, voiding
its warranty. Any change to this
appliance and/or its operating
controls is dangerous.
WARNING
Improper installation or use of
this appliance can cause serious
injury or death from fire, burns,
explosion or carbon monoxide
poisoning.
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.
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
WARNING
Young children should be carefully supervised when they are
in the same room as the appliance. Toddlers, young children
and others may be susceptible
to accidental contact burns. A
physical barrier is recommended
if there are at risk individuals in
the house. To restrict access to
a fireplace or stove, install an
adjustable safety gate to keep
toddlers, young children and
other at risk individuals out of the
room and away from hot surfaces.
AVERTISSEMENT
Les jeunes enfants devraient être
surveillés étroitement lorsqu’ils
se trouvent dans la même pièce
que l’appareil. Les tout petits,
les jeunes enfants ou les adultes
peuvent subir des brûlures s’ils
viennent en contact avec la surface chaude. Il est recommandé
d’installer une barrière physique
si des personnes à risques habitent
la maison. Pour empêcher l’accès
à un foyer ou à un poêle, installez
une barrière de sécurité; cette
mesure empêchera les tout petits,
les jeunes enfants et toute autre
personne à risque d’avoir accès à
la pièce et aux surfaces chaudes.
Children and adults should be alerted to
the hazards of high surface temperature
and should stay away to avoid burns or
clothing ignition.
Les enfants et les adultes devraient
être infor-més des dangers que posent
les températures de surface élevées
et se tenir à distance afin d’éviter des
brûlures ou que leurs vêtements ne
s’enflamment.
WARNING
Clothing or other flammable
material should not be placed on
or near the appliance.
AVERTISSEMENT
On ne devrait pas placer de vêtements ni d’autres matières inflammables sur l’appareil ni à proximité.
WARNING
Any safety screen or guard
removed for servicing the appliance must be replaced prior to
operating the appliance.
AVERTISSEMENT
Tout écran ou protecteur retiré pour
permettre l’entretien de l’appareil
doit être remis en place avant de
mettre l’appareil en marche.
NOTE: Installation and repair should be done
by a qualified service person. The appliance
should be inspected before use and at least
annually by a professional service person.
More frequent cleaning may be required due
to excessive lint from carpeting, bedding material, et cetera. It is imperative that control
compartments, burners, and circulating air
passageways of the appliance be kept clean.
Remarque : L’installation et la réparation devrait être confiées à un technicien
qualifié. L’appareil devrait faire l’objet
d’une inspection par un technicien professionnel avant d’être utilisé et au moins
une fois l’an par la suite. Des nettoyages
plus fréquents peuvent être nécessaires
si les tapis, la literie, et cetera produisent
une quantité importante de pous-sière. Il
est essentiel que les compartiments abritant les commandes, les brûleurs et les
conduits de circulation d’air de l’appareil
soient tenus propres.
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 utiliser cet appareil s’il a été
plongé, même partiellement, dans
l’eau. Appeler un technicien qualifié pour
inspecter l’appareil et remplacer toute
partie du système de commande et toute
commande qui a été plongée dans l’eau.
Only trim kit(s) supplied by the manufacturer
shall be used in the installation of this
appliance.
Seules les trousses de garniture fournies
par le fabricant doivent être utilisées pour
l’installation de cet appareil.
Provide adequate clearances around air
openings and adequate accessibility clearance for service and proper operation. Never
obstruct the front or back openings of the
appliance.
3
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
GENERAL
INFORMATION
INTRODUCTION
LENNOX HEARTH PRODUCTS Elite Linear
models are direct-vent (top vent only), sealed
combustion, air-circulating gas replaces de-
signed for residential applications.
Direct-vent appliances operate with the combustion chamber isolated from the indoor
environment. All air for combustion is brought
in from the outside, and exhaust gases are
vented through the same direct-vent, coaxial
(intake/exhaust) vent system.
These appliances are designed to operate
on natural or propane gas only. The use of
other fuels or fuel combinations will degrade
the performance of this system, may be
dangerous, and may void the warranty.
The electronic system is switchable between
standing and intermittent pilot modes (see Figure 11-2).
A remote control system is included with all
models and provides remote ON/OFF ame
control. (Manual adjustment of the gas valve
settings is not possible.) See Page 25 for
details.
Electrical power (110 Vac line voltage) is recommended to operate the replace; however,
AA batteries (not provided) can be used for
full-time operation or as a backup in case of a
power outage.
Note: Batteries will operate the flame ON/
OFF function only.
*AFUE (Annual Fuel Utilization Efficiency) is the
recognized U.S. rating system for the total efficiency of heating products.
Figure 4-1
Natural GasPropane
EnerGuide
AFUE*
(P4)
AFUE*
EnerGuide
(P4)
LISTING INFORMATION
These appliances comply with National Safety
Standards and are tested and listed by Intertek
(Report No. 100404899PRT-001) to ANSI
Z21.88 (in Canada, CSA-2.33), and CAN/CGA-
2.17-M91 (CSA P4.1) in both USA and Canada,
as vented gas fireplace heaters.
These appliances are listed by Intertek for
installation in bedrooms, aftermarket mobile
homes, and manufactured homes.
WEALTH OF MASSACHUSETTS
These fireplaces are approved for installation in
the US state of Massachusetts if the following
additional requirements are met:
• Install appliance in accordance with Massachusetts Rules and Regulations 248 C.M.R.
• Installation and repair must be done by a
• The exible gas line connector used shall
• The individual manual shutoff must be a
Massachusetts Horizontal Vent
Requirements
In the Commonwealth of Massachusetts, horizontal terminations installed less than seven
(7) feet above the finished grade must comply
with the following additional requirements:
• A hard-wired carbon monoxide detector
CODES
Installation must conform to local codes or, in
the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, latest
edition (in Canada, the current CAN/CSA-
B149.1 installation code).
The appliance, when installed, must be electri-
cally grounded and wired in accordance with
local codes, or, in the absence of local codes,
with the National Electrical Code, ANSI/NFPA
70, latest edition, or the Canadian Electrical
Code, CSA C22.1, latest edition.
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
• A metal or plastic identication plate must
COLD CLIMATE INSULATION
REQUIREMENTS
For cold climate installations:
• Use noncombustible caulk to seal all joints
around the appliance and wherever cold air
could enter the room.
• Caulk all gas line holes and other openings
(or stuff with unfaced berglass insulation).
• Caulk firestops only where pipe penetrates
an outside wall, attic, or other other uncon-
ditioned space.
• If the oor is above ground level, insulate
the outside chase cavity between the studs
and under the floor beneath the appliance.
• If installing the replace on a cement slab,
place a sheet of plywood or other raised
platform underneath to prevent cold transfer
to the fireplace and into the room.
• Drywall and tape all inside sur faces of surrounding chase for maximum air tightness.
plumber or gas fitter licensed in the Commonwealth of Massachusetts.
not exceed 36 inches (92 centimeters) in
length.
T-handle type valve.
with an alarm and battery backup must be
installed on the floor level where the gas
fireplace is installed. The carbon monoxide
detector must comply with NFPA 720, be
ANSI/UL 2034 listed and be ISA certied.
be permanently mounted to the exterior of
the building at a minimum height of eight (8)
feet above grade and be directly in line with
the horizontal termination. The sign must
read, in print size no less than one-half (1/2)
inch in size: GAS VENT DIRECTLY BELOW.
KEEP CLEAR OF ALL OBSTRUCTIONS.
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
8. Field wiring.
TYPICAL INSTALLATION
SEQUENCE/CHECKLIST
Note: Each installation is unique and
may result in variations to the steps
outlined below.
The appliance ships with all gas controls
installed and pre-wired.
1. Remove all shipping materials.
2. Confirm receipt of required items listed
under “Packaging” on Page 2.
3. Retrieve the non-combustible fiber board
from behind the fireplace and set aside in a
safe location for later installation.
4. If not already done, remove the glass door
assembly (Page 29) and set aside in a
secure location for later reinstallation.
5. Remove the modesty panel (Page 29) by
sliding it to the RIGHT and then carefully
pulling it forward to release it. Set aside in
a secure loaction for later reinstallation.
6. IMPORTANT! Assemble top spacers
before installing fireplace (Page 7).
7. IMPORTANT! Adjust nailing flanges, as
applicable (Page 9).
IMPORTANT!
Before installing fireplace, nailing
flanges MUST be adjusted according
to finish (cleanface or surround) and
wall finish material thickness. This
is critical to ensure proper fireplace
location, especially if installing
optional Surround. See Page 9.
WARNING
Failure to position the parts in
accordance with these diagrams
5. Construct framing for termination.
Roof opening framing for
vertical termination. . . . . . . . . . . . . . 9
Exterior wall opening framing
for horizontal termination. . . . . . . . . 9
or failure to use only parts specifically approved with this appliance
may result in property damage or
personal injury.
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
AVERTISSEMENT
Risque de dommages ou de
blessures si les pièces ne sont
pas installées conformément à
ces schémas et ou si des pièces
autres que celles spécifiquement
approuvées avec cet appareil sont
utilisées.
5
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
5 (127)
8-1/4
(209)
14
(356)
12 (305)
17 (431)
CLEARANCES
MINIMUM CLEARANCES
TO COMBUSTIBLES
The appliance is approved with zero clearance
to combustible materials on both sides (see
Figure 6-1), with the following exceptions:
• When unit is installed with one side flush
with a wall, the wall on the other side of unit
must not extend beyond unit front edge.
• When unit is recessed, the side walls surrounding the unit must not extend beyond
unit front edge (see Figure 6-4).
MINIMUM CLEARANCES
TO COMBUSTIBLES
Back1/2" (12.7 mm) to unit
0" (0 mm) to spacers
Sides1/2" (12.7 mm) to unit
0" (0 mm) to spacers
Top Spacers0" (0 mm)
Floor0" (0 mm)
Unit Bottom to Ceiling 65" (1651 mm)
Vent PipeTop: 3" (76 mm)
Sides: 1" (25.4 mm)
Bottom: 1" (25.4 mm)
SERVICE CLEARANCES
Front36" (152.4 mm)
3" (76 mm) above any horizontal/
inclined vent component.
See "Framing the Fireplace," Page 7,
for clearance requirements to nailing
flanges on unit sides and any adjacent
screw heads.
Figure 6-1
Do NOT insulate space
between appliance and
area above it.
~
Distance from Unit Base
to Bottom of Recessed
Shelf (see table)
MIN. CLEARANCE TO
COMBUSTIBLE RECESSED SHELF
Fireplace
Model
LDV4251-1/4 (1299)53 (1345)
LDV54
*Includes 3" clearance to combustibles required
above vent components.
Secure Vent
in (mm)
55 (1400)*56-3/4 (1441)*
6" straight
vent section
required
before 90°
elbow.
Secure Flex
(elbow)
in (mm)
Figure 6-2: Minimum Clearance to
Combustible Recessed Shelf
Mantel Depth
28 (711)
26 (660)
24 (610)
22 (559)
20 (508)
18 (457)
inches
(millimeters)
12
(305)
10
(254)
8
(203)
6
(152)
MANTELS
Non-Combustible Mantels
Mantels constructed of non-combustible
material may be installed at any height above
the appliance opening; however, do NOT allow
anything to hang below the top edge of the
fireplace door.
Combustible Mantels
Clearances to combustible mantels vary according to mantel depth. See Figure 6-3 for
details.
Note: Use high-temperature paint (rated 175°F
or higher) on the underside of the mantel.
UNPROTECTED SIDE WALL
See Figure 6-4 for minimum clearances to
unprotected side walls.
FINISH/SURROUND
IMPORTANT! The factory- supplied
non-com bustible fiber board MUST be
installed around the fireplace opening.
See Page 32 for details.
Header
Top of
Appliance
2
4
(51)
(102)
RECESSED SHELF
These direct-vent appliances are suitable for
installations with a recessed shelf above the
fireplace. See Figure 6-2 for clearances from
the appliance base to the underside of any
combustible material used to construct such
a shelf.
Note:
• Do NOT insulate the space between
the appliance and the area above it.
• This is a heat-producing appliance.
Objects placed above the unit are
exposed to elevated temperatures.
HEARTH EXTENSION
A hearth extension is not required with this
appliance. Any installed hearth extension would
be for appearance only and does not have to
conform to standard hearth extension installation requirements.
6
Figure 6-3: Minimum Clearances to Combustible Mantel
At 14" minimum
side wall clearance,
a combustible wall
can project to any
length.
At 8-1/4" side
wall clearance, a
combustible wall
can project 12"
o
45
Protected wall shown in white
Figure 6-4: Minimum Clearances to Unprotected Side Wall
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
Top View of
Fireplace
Combustible Materials
Allowed In Shaded Area
“Safe Zone”
Combustible Walls
shown in dark gray
Combustible materials may
project beyond one side
of the fireplace opening
as long as they are kept
within the shaded areas
illustrated here.
Inches (millimeters)
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
LOCATION AND
FRAMING
LOCATION
Factors to consider when selecting a location
for the appliance include aes thetics, function,
vent system routing, and fuel supply access.
Locate the appliance in an area free of electri-
cal, plumbing, and HVAC ducting. See Figure
7-2 for typical installation configurations.
CAUTION: Due to high temperatures, the
appliance should be located out of traffic
and away from furniture and draperies.
AVERTISSEMENT : En raison des températures élevées, l’appareil devrait
être installé dans un endroit où il y a
peu de circulation et loin du mobilier
et des tentures.
The appliance may be located on or near conventional construction materials (see Note under Step 4 on this page).
IMPORTANT!
Before installing the fireplace, the
nailing flanges MUST be adjusted
according to finish (cleanface or
surround) and wall finish material
thickness. This is critical to ensure
proper fireplace location, especially
if installing the optional Surround.
See “UNIT NAILING FLANGES” on
Page 9.
FRAMING THE FIREPLACE
1. Assemble the top spacers (Figure 7-1).
2. Adjust the nailing anges, as applicable
(see Page 9).
3. Frame the replace (see Page 8).
4. Mount the fireplace on a fully supported
base extending the full width and depth of
the unit.
Note: If installing the appliance on
combustible material (such as carpet or vinyl tile), a metal or wood
barrier covering the entire bottom
surface MUST be used.
5. Secure the fireplace to the side framing
members using the unit’s nailing flanges
per the instructions under “UNIT NAILING
FLANGES” on Page 9. Use 8d nails or their
equivalent.
Note:
• All framing details must allow for minimum clearances to combustibles as
shown in the “CLEARANCES” section
(previous page).
• Headers may be in direct contact with the
appliance top spacers when top spacers are
bent up vertically (maintaining the 4-3/8"
clearance to the replace top); however,
headers must NOT be supported by top
spacers or notched to fit around them.
• All construction above the appliance must
be self-supporting. Do NOT use the appli-
ance for structural support.
TYPICAL LOCATIONS/INSTALLATION
Note: When unit is installed with one side
flush with a wall, the wall on the other
side of the unit must not extend beyond
the front edge of the unit.
See CLEARANCES section on the
previous page.
RECESSED
INSTALLATION
HORIZONTAL
TERMINATION
VERTICAL
TERMINATION
ASSEMBLING TOP SPACERS
IMPORTANT! Assemble top spacers before installing fireplace.
Bend up each spacer as illustrated,
and secure with two provided screws.
Figure 7-1
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
Figure 7-2
7
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
LOCATION AND FRAMING
(CONTINUED)
FIREPLACE DIMENSIONS
Viewable Glass Size
LDV4240" Wide x 10.5" High
LDV5450" Wide x 14-3/4" High
Vent Collar Size
4-1/2" Inner - 7-1/2" Outer
IMPORTANT!
Before installing fireplace,
nailing flanges MUST be adjusted accor ding to finish
(cleanface or surround) and
wall finish material thickness.
This is critical to ensure proper
fireplace location, especially if
installing optional Surround.
See next page.
As semble TO P SPA CER S
before in stall ing fireplace
(Figure 7-1).
9-7/8
9-7/8
(251)
(251)
TOP VIEW
32-1/2
AA
(823)
9-3/8
4-3/8
(238.1)
(111)
FRONT VIEW (with Spacers installed)
64-3/4
BB
(1645.9)
Fireplace Dimensions
Model UnitAABBCC
in.
LDV42
LDV54
Inches
(millimeters)
Inches
(millimeters)
36-3/8
CC
(923.8)
26-7/8 53-3/4 32-1/2
mm
6831366826
in.
32-1/2 64-3/4 36-3/8
mm
826 1846924
RIGHT SIDE VIEW
18-1/2
18-1/2
(471.2)
(470)
Top/Bottom
Nailing
langes
Figure 8-1
FRAMING DIMENSIONS
Construct framing with 2x4 or larger lumber.
Framing Dimensions
ModelUnitABCD
LDV42
LDV54
Note: Illustration provided for dimension information only.
Fireplace must be adequately framed and supported.
A = Required frame opening width. (1/2 of A = horizontal centerline
B = Required frame opening depth with 1/2" (13mm) thick wall nish
C = Min. frame opening height (from base of appliance to header).
D = Min. height from appliance base to vertical centerline of
E = Min. height from appliance base front to ceiling.
F = Mounting platform (Note: Mount appliance on a fully supported
Figure 8-2
8
in.54-3/4 18-1/23744-3/8
mm1391 4709401127
in.65-3/4 18-1/2 41-3/448-1/4
mm1670 47010611226
of fireplace and vent framing opening. See EXTERIOR WALL
OPENING FRAMING section.)
material. For other wall nish thicknesses, adjust frame opening
depth and nailing anges accordingly (see UNIT NAILING FLANGES
section).
horizontal termination vent pipe (with 6" straight vent section and
90° elbow off appliance vent collar). (Note: The vertical centerline of
the horizontal termination ventpipe is NOT the same as the vertical
centerline of the vent frame opening because of firestop/spacer
offset. See EXTERIOR WALL OPENING FRAMING section.
platform extending full width and depth of unit.)
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
C
D
LOCATION AND FRAMING
(CONTINUED)
UNIT NAILING FLANGES
Unit ships from factory with nailing flanges in
vertical position for cleanface nish and at 1/2"
wall finish depth.
Cleanface Finish Nailing Flange Settings:
1. Leave vertical position of nailing flanges at
factory setting (see
2. If wall nish material is thicker than 1/2", move
nailing flanges to applicable horizontal setting.
Surround Finish Nailing Flange Settings:
1. Move vertical position of Top Nailing Flange
UP and Bottom Nailing Flange DOWN (see
Figure 9-1, DETAIL B).
2. If wall nish material is thicker than 1/2", move
nailing flanges to applicable horizontal setting.
ADJUSTING UNIT NAILING FLANGES
[DETAIL A]
Top
Nailing
Flange
Bottom
Nailing
Flange
[DETAIL B]
Top
Nailing
Flange
Figure 9-1, DETAIL A).
Top Nailing Flange
(settings are same
for Bottom Flange)
Horizontal settings for
wall finish thickness:
1/2", 3/4", 1", 1-1/4", 1-1/2"
1/2"1-1/2"
Nailing Flange
Vertical Setting
for Cleanface Finish
Nailing Flange
Vertical Setting
for Surround
SECURING UNIT TO FRAMING
BY NAILING FLANGES
Unit Nailing
Flanges
Side
Framing
Nailing flanges are
provided at all four
corners at 1/2" to
1-1/2" settings,
in 1/4” increments.
Fireplace Left Side Front Corner Shown
(Requirements are same for right side.)
Note: The nailing anges, combustible
members, and screw heads in areas
directly adjacent to the nailing flanges
are EXEMPT from the 1/2-inch clearanceto-combustible requirements for the
firebox outer wrapper. Combustible
framing may be in direct contact with the
nailing flanges and may be located closer
than 1/2 inch from screw heads and the
firebox wrapper in areas adjacent to the
nailing anges. Frame the opening to the
exact dimensions specified in the framing
details.
Figure 9-2
CEILING OPENING FRAMING
If the vertical vent will penetrate a ceiling, use a
plumb line from the ceiling above the appliance
to locate center of the vertical run. Cut and/or
frame an opening about this center mark with
10-1/2" x 10-1/2" (267 mm x 267 mm) inside
dimensions (Figure 9-4).
Note: Vertical Firestop/Spacer must
be used anywhere vent pipe passes
through a combustible floor or
ceiling. Horizontal Firestop/Spacer
must be used anywhere vent pipe
passes through a combustible wall.
See “Firestop/Spacer Requirements” on
Page 13 for details.
ROOF OPENING FRAMING
[Vertical Termination]
Identify the location for the vent at the roof.
Cut and/or frame the opening per Figure 9-3.
ROOF OPENING FRAMING DIMENSIONS
PitchCD
0/1210-1/2 in.
6/1210-1/2 in.
12/1210-1/2 in.
(267 mm)
(267 mm)
(267 mm)
Figure 9-3: Roof Opening Framing
Roof
Framing
Ceiling
Framing
10-1/2” Min.
(267mm)
Figure 9-4: Ceiling Opening Framing
10-1/2 in.
(267 mm)
12 in.
(305 mm)
17 3/4 in.
(451 mm)
10-1/2” Min.
(267mm)
Plumb
Bob
EXTERIOR WALL OPENING
FRAMING [Horizontal
Termination]
1. Locate the center of the vent outlet on the
exterior wall according to the di men sions shown in Figure 9-5.
2. Cut and/or frame an opening with insidedimensions 10-1/2" (267 mm) wide x
12-1/8" (308 mm) high.
Bottom
Nailing
Flange
Figure 9-1
Note: Centerline of vent piping
is NOT the same as centerline
of frame opening.
Figure 9-5: Exterior Wall Opening Framing
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
See FRAMING DIMENSIONS (previous page)
for min. distance to base of appliance.
(Appliance Base)
9
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
GAS REQUIREMENTS
AND CONNECTION
GENERAL GAS INFORMATION
AND IMPORTANT NOTICES
• It is critical that a licensed instal ler
perform these steps strictly per NFPA.
Installing a gas supply line from the fuel
supply to the appliance involves numerous
considerations, including materials, protection, sizing, location, controls, pressure,
sediment, and more.
• Gas lines must be routed, constructed, and
made of materials that are in strict accordance with local codes and regulations.
Check with local building officials for local
code requirements.
• Never use galvanized or plastic pipe.
• A sediment trap (not provided) is recom-
mended in the gas piping within the home to
prevent moisture and debris in the line from
damaging the valve.
• On threaded joints, use a pipe joint com-
pound rated for gas. Always use propane-
resistant compounds in propane applications. Make sure pipe joint compound
does NOT get inside the pipe.
• It is recommended to seal around the gas
line to prevent cold air leakage.
GAS SUPPLY PRESSURE
REQUIREMENTS
INLET GAS SUPPLY PRESSURE
Fuel TypeMinimumMaximum
Natural Gas5.0" WC
(1.24 kPa)
Propane11.0" WC
(2.74 kPa)
MANIFOLD GAS SUPPLY PRESSURE
Natural Gas3.5" WC
Propane10.0" WC
Figure 10-1
10.5" WC
(2.61 kPa)
13.0" WC
(3.23 kPa)
(0.87 kPa)
(2.49 kPa)
INPUT RATES
INPUT RATES (BTU/hr)
Fireplace
Model
LDV4220,00020,000
LDV5430,00030,000
Figure 10-2
Natural GasPropane
GAS VALVE AND TEST PORT
INFORMATION
The SIT gas valve in this replace has a 3/8"
NPT thread main gas inlet and outlet (Figure 10-3).
Test gauge connections are provided on the
front of the gas control valve (identied IN for
the inlet and OUT for the manifold side).
• Where required, tightly secure all joints
using appropriate pipe wrenches and sealing compounds.
These appliances must be isolated from
the gas supply piping system (by closing
their individual manual shutoff 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).
These appliances and their individual
shutoff valves must be disconnected
from the gas supply piping system
during any pressure testing of that
system at pressures greater than 1/2
psig (3.5 kPa).
IMPORTANT NOTICE REGARDING
PROPANE INSTALLATIONS
Propane tanks are at pressures that will
cause damage to valve components.
Verify that the tanks have step-down regulators to reduce pressures to safe levels.
Using a propane tank smaller than
100 lbs may create pressure loss and
insufficient fuel delivery, which can cause
sooting, severe delayed ignition, or other
malfunctions (ref. NPFA 58).
Any damage as a result of insufficient
tank size or other improper installation is
NOT covered under the limited warranty.
10
(from DFC Wire Harness)
Line (IN) Test Port
Manifold (OUT) Test Port
Orange Wire
(from DFC Wire
Harness)
Main Gas Inlet
3/8" NPT
Figure 10-3: SIT Gas Valve
Adjustment Lever
Figure 10-4
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
Green Wire
Air Shutter
Battery Backup Holder
(attached to bracket with cable)
Pressure Regulator
Tower
Yellow Ground Wire
(from DFC Wire Harness)
Glass Door Assembly
(Lower Right Corner)
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
GAS REQUIREMENTS/CONNECTION
(CONTINUED)
BURNER ORIFICE SIZES
Sea Level to High Altitude
These appliances are tested and approved
for installation at elevations of 0–4500 feet
(0– 1372 meters) above sea level using the
standard burner orice sizes (marked with an
asterisk [*] in Figure 11-1). For elevations
above 4500 feet, contact your gas supplier or
qualified service technician.
Derating Gas Input
At higher elevations, the amount of BTU fuel
value delivered must be reduced by either:
• using gas that has been derated by the gas
company; or
• changing the burner orice to a smaller size
as regulated by the local authorities having
jurisdiction or by the (USA) National Fuel
Gas Code NFPA 54/ANSI Z223.1, latest
edition, or, in Canada, the CAN/CSA-B149.1
codes, latest edition.
Install the appliance according to the regulations
of the local authorities having jurisdiction and,
in the USA, the National Fuel Gas Code NFPA
54 / ANSI Z223.1, latest edition, or , in Canada,
the CAN/CSA-B149.1, latest edition.
NOTE: Flame appearance may vary at
higher altitudes.
GAS FLEX LINE
The exible gas line connector (“ex line”)
provided with the replace assembly (Figure 11-3) is for use in connecting the unit to the
gas supply line. (See Page 37 for flex line
description.)
The provided flex line is rated for use with
either natural gas or propane.
Use of a flex-line connector is acceptable in
the U.S.A., where local codes permit; how-
ever, Canadian requirements vary depending
on locality.
Note: Flex-line installation must
be in compliance with local codes.
[TOP VIEW, WITH FLOOR KIT REMOVED]
[DETAIL/CUTAWAY, WITH BURNER AND CONTROL ACCESS PANEL REMOVED]
GAS LINE SHUTOFF VALVE
The gas line shutoff valve provided with the
fireplace has a 1/2" NPT thread inlet port.
Building and plumbing codes require a gas
line shutoff valve mounted in the supply line.
The provided gas line shutoff valve
( located in the control compartment under the fireplace floor)
is intended as a service shutoff.
National and local codes may require installation of a second gas
line shutoff valve (not provided)
in a readily accessible location.
Consult local codes.
Control Access Panel
Burner Assembly
Burner Orifice Sizes
Elevation 0–4500 ft ( 0–1372 m)
Fireplace
Model
LDV42
LDV54
NATURAL GAS
drill size (inches)
#45 (.082")*
Cat. No. 39L66
#37 (.104")*
Cat. No. 24M10
PROPANE
drill size (inches)
#55 (.052")*
Cat. No. 19L52
.063"*
Cat. No. LB-37G00
Figure 11-1 *Standard size installed at factory.
CPI/IPI SWITCH (INTERMITTENT/
STANDING PILOT MODES)
The electronic system is switchable between
standing and intermittent pilot modes (see Figure 11-2).
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
____________
*Switches from intermittent ignition to standing pilot mode.
Main Gas Shut-Off Valve
Figure 11-2
Flex Line Connector
1/2" x 3/8" Flare
Shut-Off Valve
Gas
Stub
Note: The gas supply line must be installed in accordance with
building codes by a qualified installer approved and/or licensed as
required by the locality. In the Commonwealth of Massachusetts,
installation must be performed by a licensed plumber or gas fitter.
Figure 11-3
3/8" NPT x 3/8"
Flare Fitting
3/8" Flex Tubing
ON
OFF
CPI/IPI Switch*
(ON = Standing;
OFF = Intermittent)
Gas
Valve
11
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
GAS REQUIREMENTS/CONNECTION
(CONTINUED)
ROUTING THE GAS LINE
Route a 1/2" (13 mm) gas line (not provided) to the appliance.
It is preferable to bring the gas line in from the left side (as
shown in Figure 12-1); however, the gas line also may enter
the fireplace from the right side or bottom.
Note: Properly size and route the gas supply line from the
supply regulator to the area where the appliance is to be
installed per requirements outlined in the National Fuel Gas
Code, NFPA 54, latest edition (USA) or CAN/CSA-B149.1,
latest edition (Canada).
For additional requirements for installations in the state of
Massachusetts (USA), see the section titled “Massachusetts
Requirements” in this manual.
Left Front Corner of
Fireplace Framing
(It is preferable to bring
gas line in from left side;
however, gas line also
may enter fireplace from
right side or bottom.)
Platform Base
13-3/4"
1-5/8"
(43 mm)
Figure 12-1: Routing Gas Line
(351 mm)
Control Compartment Access Panel Removed
Gas Supply Line
Access Opening
Figure 12-2
[DETAIL]
Burner
Assembly
Gas Flex Line
Gas Line Shutoff Valve (after
disconnection from Flex Line)
Air Shutter
Adjustment
Rod
Remove two screws to
remove burner assembly.
CONNECTING TO THE GAS SUPPLY
IMPORTANT: Do NOT connect the fireplace to the gas
supply line until fireplace installation is complete.
1. Refer to Figure 12-2. Route the gas supply line into the
firebox through the gas supply line access opening to the
point it will connect to the gas flex line and gas line shutoff valve.
2. Unscrew the shutoff valve from the gas flex line. Apply
thread sealant appropriate for the gas type, and then connect the shutoff valve to the gas stub.
IMPORTANT: Position the shutoff valve to allow easy
operation of the knob through the access opening in
the fireplace floor.
3. Connect the flare fitting on the flex line to the shutoff valve.
Tighten by hand, and then use a pipe wrench to tighten
completely, 1/4-turn at a time.
4. Leak-test all ttings.
CONTROL COMPARTMENT ACCESS
1. Remove the burner assembly with attached air shutter
assembly by removing the two 5/16" screws securing the
burner to the burner brackets (Figure 12-3).
Carefully slide the burner to the left, to clear the venturi from
the orifice (Figure Figure 12-3, Detail), and then rotate the
burner to release the air shutter adjustment rod from the
air shutter lever (Figure 2). Set aside screws and burner
assembly in a secure location for later reinstallation.
2. Remove the control compartment access panel and gasket
by removing (12) screws, and set aside for later reinstallation. The gas valve can be accessed through the opening,
or the complete assembly can be removed by sliding the
12
assembly to the right.
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
Venturi
Left Burner
Bracket
Control Compartment
Access Panel and Gasket
Right Burner Bracket
Burner
Orifice
Figure 12-3: Burner Assembly Removal and Control Compartment Access
TESTING CONNECTIONS (FACTORY AND FIELD) FOR GAS LEAKS
Turn on gas supply and use a gas leak test solution (also referred to as bubble leak
solution) to test all factory and eld connections for gas leaks.
Note: Even though soapy water is an effective leak test solution, it is NOT
recommended because soap residue can corrode pipes and fittings over time.
1. Light the appliance (refer to the lighting instructions in the Care and Operation
Instructions or on the label attached to the door latch).
2. Brush all joints and connections with the gas leak test solution. If bubbles form
or gas odor is detected, turn the gas control knob (off/pilot/on) to the OFF posi-
tion. Tighten or refasten the leaking connection, then retest as described above.
3. When all gas lines are tested and leak free, rinse off the leak test solution.
NEVER USE AN OPEN FLAME TO CHECK FOR LEAKS.
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