Lennox ELITE LDV42N, ELITE LDV42P, ELITE LDV54N, ELITE LDV54P Installation Instructions Manual

INSTALLATION INSTRUCTIONS

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

TABLE OF
CONTENTS

PACKAGING:

Items Packaged with the Fireplace . . . . . . 2

Optional Accessories . . . . . . . . . . . . . . . . . 2

IMPORTANT WARNINGS/NOTICES . . . . . . . 3

GENERAL INFORMATION:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4

Efficiencies . . . . . . . . . . . . . . . . . . . . . . . . 4

Listing Information . . . . . . . . . . . . . . . . . . 4

Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Requirements for Commonwealth

of Massachusetts . . . . . . . . . . . . . . . . . . 4

Cold Climate Insulation Requirements . . . 4

TYPICAL INSTALLATION

SEQUENCE/CHECKLIST . . . . . . . . . . . . . . 5

PRE-INSTALLATION STEPS . . . . . . . . . . . . . 5

CLEARANCES. . . . . . . . . . . . . . . . . . . . . . . . 6

Minimum Clearances to Combustibles . . . 6

Recessed Shelf . . . . . . . . . . . . . . . . . . . . . 6

Hearth Ex tension . . . . . . . . . . . . . . . . . . . 6

Mantels . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Unprotected Side Wall . . . . . . . . . . . . . . . 6

Finish/Surround (provided Fiber Board

MUST be installed) . . . . . . . . . . . . . . . . 6

LOCATION AND FRAMING:

Location . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Framing the Fireplace . . . . . . . . . . . . . . . . 7

Typical Locations/Installation . . . . . . . . . . 7

 Assembling the Top Spacers. . . . . . . . . . 7

Fireplace Dimensions . . . . . . . . . . . . . . . . 8

Fireplace Framing Dimensions . . . . . . . . . 8

Unit Nailing Flanges . . . . . . . . . . . . . . . . . . 9

Ceiling Opening Framing . . . . . . . . . . . . . . 9

Roof Opening Framing . . . . . . . . . . . . . . . 9

Exterior Wall Opening Framing . . . . . . . . . 9

GAS REQUIREMENTS AND CONNECTION:

General Gas Information and

Important Notices . . . . . . . . . . . . . . . . . 10

Gas Supply Pressure Requirements . . . . 10

Input Rates . . . . . . . . . . . . . . . . . . . . . . . 10

Gas Valve and Test Port Information . . . . 10

Burner Orifice Sizes . . . . . . . . . . . . . . . . . 11

CPI/IPI Switch (Intermittent/Standing

Pilot Modes . . . . . . . . . . . . . . . . . . . . . 11

Gas Flex Line . . . . . . . . . . . . . . . . . . . . . . 11

Gas Line Shutoff Valve . . . . . . . . . . . . . . 11

Routing the Gas Line . . . . . . . . . . . . . . . . 12

Control Compartment Access . . . . . . . . . 12

Connecting to the Gas Supply . . . . . . . . . 12

Testing Connections (Factory and Field)

for Gas Leaks . . . . . . . . . . . . . . . . . . . . 12

VENTING INSTALLATION:

General Information/Important Notices . . 13

Approved Vent Components . . . . . . . . . . 13

Attaching Secure Vent™ Components . . . 13

Firestop/Spacer Requirements

(Vertical and Horizontal) . . . . . . . . . . . . 13

2

Vent Section Lengths (Nominal/Net) . . . . 14

Telescopic Vent Section . . . . . . . . . . . . . . 14

Elbows . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Vent Run Support Requirements . . . . . . . 15

Vent Restrictor Requirements,
Assembly Settings, and Application . . . 16
Using Secure Flex™ Kits/Components . . . 17

VERTICAL TERMINATION SYSTEMS:

Typical Vertical Termination Systems . . . 18
Vertical Termination System

Rise-to-Run Ratios . . . . . . . . . . . . . . . . 18

Vertical Vent Termination Clearances . . . 19

Installing Vertical Vent Termination . . . . . 19

HORIZONTAL TERMINATION SYSTEMS:

Typical Horizontal Termination

Systems . . . . . . . . . . . . . . . . . . . . . . . . 20

Horizontal Termination System

Rise-to-Run Ratios . . . . . . . . . . . . . . . . 20

Horizontal Vent Termination

Clearances . . . . . . . . . . . . . . . . . . . . . . 21

Exterior Horizontal Vent Termination
Clearance Requirements (ANSI/CSA) . . 22
Installing Horizontal Vent Termination . . . 23

FIELD WIRING:

Field Wiring Steps . . . . . . . . . . . . . . . . . . 24

Wiring Diagram . . . . . . . . . . . . . . . . . . . . 24

Route Fireplace Wiring . . . . . . . . . . . . . . 24

Wire/Install Remote Control System . . . . 25

INSTALLING FIREPLACE COMPONENTS:

Install Vent Restrictor (required with

certain vent runs) . . . . . . . . . 26 (also 16)

Install Media . . . . . . . . . . . . . . . . . . . . . . 26

Baffle Removal/Reinstallation . . . . . . . . . 28

Install Glass Door Assembly . . . . . . . . . . 29

Install Modesty Panel . . . . . . . . . . . . . . . 29

Install Surround (optional) . . . . . . . . 33–34

VERIFYING FIREPLACE OPERATION:

Appliance Checkout . . . . . . . . . . . . . . . . . 29

Lighting Instructions . . . . . . . . . . . . . . . . 30

Adjusting the Air Shutter . . . . . . . . . . . . . 31

FINISH AND TRIM:

Wall Finish Requirements

for Cleanface Finish . . . . . . . . . . . . 32–33

Wall Finish Requirements when installing

optional Surround . . . . . . . . . . . . . . 33–34

ATTACHING SAFETY-IN-OPERATION

WARNING LABELS. . . . . . . . . . . . . . . . . 35

INSTALLATION ACCESSORIES . . . . . . . . . 36

Gas Conversion Kit . . . . . . . . . . . . . . . . . 37

REPLACEMENT PARTS . . . . . . . . . . . . 38–40

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.

4

EFFICIENCIES REQUIREMENTS FOR COMMON-

EFFICIENCIES

Fireplace

Model

LDV42 66.7% 54.2% 69.6% 59.4%
LDV54 71.9% 63.2% 72.1% 65.5%

*AFUE (Annual Fuel Utilization Efficiency) is the
recognized U.S. rating system for the total effi­ciency of heating products.

Figure 4-1

Natural Gas Propane

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 identication 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 certied.

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.

 1. Review the following information

before starting installation:

 Listing information / codes /

Massachusetts requirements . . . . . 4

 Cold climate insulation

requirements . . . . . . . . . . . . . . . . . . 4

 Clearances (combustibles, mantel,

recessed shelf, side wall, hearth

extension, nish/surround) . . . . . . . 6

 Fireplace location . . . . . . . . . . . . . . . 7

 Typical vertical termination

systems and rise-to-run ratios...18–19

 Typical horizontal termination

systems and rise-to-run ratios...20–23

 Gas line requirements . . . . . . . 10–12

 Electrical requirements and

rough-in . . . . . . . . . . . . . . . . . . . . . 24

 Location of wall-mounted remote

control system receiver . . . . . . . . . 25

 Interior wall finish

requirements . . . . . . . . . . . . . . 33–34

 2. Complete the pre-installation

steps. . . . . . . . . . . . . . . . . . . . . . . . 5

 3. Construct fireplace framing.

 Select fireplace location . . . . . . . . . . 7

 Assemble top spacers . . . . . . . . . . . 7

 Fireplace dimensions . . . . . . . . . . . . 8

 Framing dimensions. . . . . . . . . . . . . 8

 Ceiling opening framing . . . . . . . . . . 9

 4. Place fireplace in framing.

 Unit nailing flanges. . . . . . . . . . . . . . 9

 Route fireplace wiring . . . . . . . . . . 24

 Install and wire remote control

system . . . . . . . . . . . . . . . . . . . . . . 25

 9. Connect electricity.

 Install backup batteries . . . . . . . . . 26

 10. Connect to gas supply

and test for leaks. . . . . . . . . . . . . 12

 11. Install fireplace components,

in the following order:

 Install vent restrictor (required

with certain vent runs) . . . . . . . . . 16

 Reinstall bafe (if removed for

vent restrictor installation) . . . . . . . 28

 Install media. . . . . . . . . . . . . . . . . . 27

 Install glass door . . . . . . . . . . . . . . 29

 12. Verify appliance operation. . . . . . 30

 Lighting instructions . . . . . . . . . . . 31

 Air shutter adjustment . . . . . . . . . . 32

 13. Finish interior wall.

 Insulate per cold climate

insulation requirements . . . . . . . . . . 4

 Wall finish requirements:
 Wall finish requirements

for cleanface finish

(no Surround). . . . . . . . . . . 33–34

 Wall finish requirements

when installing optional

Surround . . . . . . . . . . . . . . 33–34

  IMPORTANT: Install the provided

non-combustible fiber boards per

wall finish requirements. . . . . 33–34



OPTIONAL: Install Surround. . . . . . . 34

 14. Attach the provided “Safety-in-

Operation” Warning Labels . . . . . 35

PRE-INSTALLATION
STEPS

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.

 6. Route gas line. . . . . . . . . . . . . 10–12

Note: Do NOT connect to gas supply

until installation is complete.

 7. Install venting. . . . . . . . . . . . . 13–17

 Firestop/spacer requirements. . . . . 13

 Vertical and horizontal vent

support requirements . . . . . . . . . . 15

Vertical termination . . . . . . . . . 18–19

Horizontal termination . . . . . . . 20–23

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

Back 1/2" (12.7 mm) to unit

0" (0 mm) to spacers

Sides 1/2" (12.7 mm) to unit

0" (0 mm) to spacers
Top Spacers 0" (0 mm)
Floor 0" (0 mm)
Unit Bottom to Ceiling 65" (1651 mm)
Vent Pipe Top: 3" (76 mm)

Sides: 1" (25.4 mm)

Bottom: 1" (25.4 mm)

SERVICE CLEARANCES

Front 36" (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
LDV42 51-1/4 (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

LDV42 40" Wide x 10.5" High
LDV54 50" 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 Unit AA BB CC

in.

LDV42

LDV54

Inches

(millimeters)

Inches

(millimeters)

36-3/8

CC

(923.8)

26-7/8 53-3/4 32-1/2

mm

683 1366 826

in.

32-1/2 64-3/4 36-3/8

mm

826 1846 924

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

Model Unit A B C D

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 18-1/2 37 44-3/8

mm 1391 470 940 1127

in. 65-3/4 18-1/2 41-3/4 48-1/4

mm 1670 470 1061 1226

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 vent pipe 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.

CEILING

E

65

(1651)

10-1/2

(267)

7

(178)

5-1/8

(130)

12-1/8

(308)

D

C

B

F

~

A

1/2 of A

inches

(millimeters)

Firestop/Spacer (SV4.5HF) shown
on the exterior side of the wall. It

may also be installed on the

interior side.

Typical

Termination

Shown

7"

(178)

5-1/8"

(130 mm)

12-1/8"

(308 mm)

Note: Centerline of Vent Piping is

NOT the Same as the Centerline of

the Frame Opening.

Base of Appliance

3"

(76 mm)

1"

(25.4 mm)

10-1/2"

(267 mm)

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
Pitch C D

0/12 10-1/2 in.

6/12 10-1/2 in.

12/12 10-1/2 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 inside
dimensions 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 Type Minimum Maximum

Natural Gas 5.0" WC

(1.24 kPa)

Propane 11.0" WC

(2.74 kPa)

MANIFOLD GAS SUPPLY PRESSURE

Natural Gas 3.5" WC

Propane 10.0" 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
LDV42 20,000 20,000
LDV54 30,000 30,000

Figure 10-2

Natural Gas Propane

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 (identied 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 orice 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 orice 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.

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

VENTING
INSTALLATION

GENERAL VENTING INFORMATION
AND IMPORTANT NOTICES

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

• Ensure that clearances are in accordance
with local installation codes and the re­quirements of the gas supplier.

Dégagement conforme aux codes d’in-

stalla tion locaux et aux exigences du
foumisseunde gaz.

• Use only approved vent components. See
“Approved Vent Components” (on this
page), and “Installation Accessories” at
the back of this manual.

• These fireplaces must be vented directly
to the outside.

• The vent system may not service multiple
appliances and must never be connected
to a flue serving a solid fuel burning appli­ance.

• The vent pipe is tested to be run inside an

enclosed wall (such as a chase). There is no

requirement for inspection openings in the
enclosing wall at any of the joints in the vent
pipe.

• Secure Vent™ components are shown in
these gures; Secure Flex™ pipe also may

be used.

WARNING

Under no circumstances may sepa­rate sections of concentric flexible
vent pipe be joined together.

Remember to maintain minimum

clearances to combustibles!

See CLEARANCES section in this manual.

NOTICE: It is important to install

horizontal runs on a steady, (i.e., no
“dips”), slightly positive incline of
approximately 1/4 inch rise-per-foot (20
millimeters rise-per-meter) horizontal,
in a direction away from the fireplace.

(Slightly smaller rise-per-foot run ratios
are acceptable.) Use a carpenter’s level
to measure from a constant surface, and

adjust support straps as necessary.

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

APPROVED VENT COMPONENTS

These appliances are designed, tested, and

listed for installation and operation with the

following vent components, which are labeled

for identification:

• Secure Vent™ direct-vent system compo-

nents by Security Chimneys International.

• Secure Flex™ flexible vent components by

Security Chimneys International.

• Z-FLEX™ model GA venting systems listed

to UL1777 and ULCS635 by Flexmaster

Canada Limited.

Do NOT use any other manufacturers’ vent
components with these appliances.

See “Installation Accessories” at the back of
this manual for catalog numbers.

ATTACHING SECURE VENT™
COMPONENTS

Secure Vent™ direct-vent system components

are unitized concentric pipe components
featuring positive twist-lock connections (see

Figure 13-1).

To attach venting components:

1. Attach the dimpled end of one section to

the incline channel end of the other section,

making sure to align the four dimples with
the inlets of the four incline channels.

2. Push the section being attached against the
adjoining section until fully engaged.

3. Twist the section being attached CLOCK­WISE, running the dimples down and along

the channels until seated at the ends of the
channels. The sections are properly seated

when the arrow on one section aligns with
the dimple on the other section.

The unitized design of Secure Vent compo­nents will engage and seal both the inner and
outer pipe without the need for sealant or

screws. If desired, however, a #6 x 1/2" screw
may be used at each joint (not required).

Align dimples in upper vent
section with inlets of locking
incline channels on lower vent
section (or appliance collar).

Twist upper vent section
CLOCKWISE until arrows

Arrow

Lower Vent Section or Appliance Collar

Figure 13-1

and dimples align.

Dimple

Locking
Incline
Channel

Connected Vent

Sections

www.LennoxHearthProducts.com

Arrow

FIRESTOP/SPACER
REQUIREMENTS

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.

• Use Secure Vent™ Firestop/Spacer with
Secure Vent™ vent pipe.

• Use Secure Flex™ Firestop/Spacer with
Secure Flex™ vent pipe.

• See "Installation Accessories" at the back of
this manual for catalog numbers.

Installing Vertical (Ceiling)
Firestop/Spacer

1. Install vertical firestop/spacer at all ceiling

joists.

• If living space is above the ceiling, install

firestop/spacer on bottom side of ceiling.

• If attic space is above the ceiling, install

firestop/spacer on top side of joist.

2. Route vent sections through the framed

ceiling opening (see Page 9), and secure

restop/spacer with 8d nails (or other
appropriate fasteners) at each corner.

3. Install attic insulation shield (REQUIRED)

to keep insulation materials from touching
vent pipe.

(Attic insulation shield may be used to

obtain required clearances to combus­tibles. See “Installation Accessories” at
the back of this manual for ordering infor-

mation).

Note: Caulk firestops only where pipe

penetrates an outside wall, attic, or other
unconditioned space.

Installing Horizontal (Exterior Wall)
Firestop/Spacer

See Figure 23-1. Install horizontal firestop/
spacer over the opening at the exterior side

of the framing, long side up, with the 3-inch
spacer clearance at the top, and nail into place.
(The restop/spacer also may be installed over
the opening on the interior side of framing).

13

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LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

VENTING INSTALLATION

(CONTINUED)

VENT SECTION LENGTHS
(NOMINAL AND EFFECTIVE/NET)

• Plan vent lengths to prevent joints at the

intersection of ceiling or roof joists.

• Vent length combinations and straight vent

effective lengths are listed in Figure 14-2.

TELESCOPIC VENT SECTION

A telescopic vent section may be used when
installing in tight spaces or when a vent run that
is made up of fixed-length sections develops a

14

joint in a undesirable location or will not build
up to the required length.

The effective length of the Telescopic Vent

Section ranges from 1-1/2" (38 mm) to 7-1/2"
(191 mm).

The Telescopic Vent Section is fitted with a

dimpled end (identical to a normal vent section
component) and a plain end with 3 pilot holes.

Slip the plain end over the locking incline chan­nel end of a standard vent component the re-

quired distance, and secure with three screws.

ELBOWS

• When planning vent runs, make allowances

for elbows.

• A 90° elbow may NOT be attached directly
to the appliance collar. A minimum of 6"
pipe must be used between the fireplace
collar and a 90° elbow.

• Two 45° elbows may be used in place of one
90° elbow (use the same rise-to-run ratios
as shown for a 90° elbow).

• An elbow is acceptable as 1 foot of vertical

rise.

• Each elbow features a 360° swivel joint
(Figure 14-1), which allows it to be rotated
around the center axis of the dimpled end,

to align with the direction of the next vent
run section.

Note: Rotate elbows in a CLOCKWISE
direction only, to avoid unlocking the
previously connected vent section.

4-13/16"

(122 mm)

360° Swivel Joint
(45° Elbow)

Figure 14-1: Elbows

360° Swivel Joint
(90° Elbow)

VENT SECTION LENGTHS

672 32 0 0 0 8 0 8

8-1/8"

(206 mm)

972 52.32 0 0 0 0 6 6

METRIC CONVERSION:

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

Figure 14-2: Straight Vent Section Lengths

Inches x 25.4 = mm.
Inches x 2.54 = cm.
Inches x 0.0254 = m.

VENT SECTION LENGTHS

STRAIGHT VENT SECTION

EFFECTIVE (NET) LENGTHS*

Description Effective Length

6 in (152 mm) Vent Section 4.5 in (114 mm)
12 in (305 mm) Vent Section 10.5 in (267 mm)
24 in (610 mm) Vent Section 22.5 in (572 mm)
36 in (914 mm) Vent Section 34.5 in (876 mm)
48 in (1219 mm) Vent Section 46.5 in (1181 mm)

*See “Installation Accessories” at the back of this
manual for all approved venting components.

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

VENTING INSTALLATION

(CONTINUED)

VENT RUN SUPPORT
REQUIREMENTS

Supporting Vertical Vent Runs

Note: Proper venting support is very
important. NEVER use the fireplace to
support the weight of the venting.

Support the vertical portion of the venting
system every 8 feet (2.4 m) above the fire­place vent outlet (see Figure 15-1).

Use Support Straps (cat. no. SV4.5SU;
see “Accessory” section in this manual) or

conventional plumber’s tape (not provided).
Secure the plumber’s tape to the framing
members with nails or screws. Loop the

plumber’s tape around the vent, securing the
ends of the tape to the framing. Use #6 x
1/2" sheet metal screws to secure the support

straps to the vent pipe.

Supporting Horizontal Vent Runs

See Figure 15-2. Install support straps every
5 ft (1.524 m) along horizontal/inclined
vent runs using Use Support Straps (cat. no.
SV4.5SU; see “Accessory” section in this

manual) or conventional plumber’s tape (not
provided).

Horizontal

Building

Support

Framing

90° Elbow

Vertical
Rise

Support

Brackets



Ceiling

Horizontal/Inclined Run

Vertical
Firestop/
Spacer

Support vertical venting every
8 ft (2.4 m) above fireplace vent
outlet (see "Supporting Vertical
Vent Runs" on this page).

Place horizontal support brackets
every 5 ft (1.524 m).

u

NOTICE: It is important to install

horizontal runs on a steady, (i.e., no
“dips”), slightly positive incline of
approximately 1/4 inch rise-per-foot (20
millimeters rise-per-meter) horizontal,
in a direction away from the fireplace.

(Slightly smaller rise-per-foot run ratios
are acceptable.) Use a carpenter’s level
to measure from a constant surface, and

adjust support straps as necessary.

Horizontal
Firestop/
Spacer

u

Straight Vent
Sections

Min. 6" Vertical Section
and One 90° Elbow

Horizontal
Termination

Exterior
Wall

Blocking

Support Straps
(e.g., plumber’s tape;
not provided)

Support vertical venting
every 8 feet (2.4 m) above
appliance vent outlet.

See “MINIMUM
CLEARANCES TO
COMBUSTIBLES"
in this manual.

Figure 15-1: Vertical Venting Support

Horizontal
Termination

Fireplace

Figure 15-2: Typical Horizontal Termination System

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

15

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

VENTING INSTALLATION

(CONTINUED)

VENT RESTRICTOR
REQUIREMENTS

Installation of the provided vent restrictor
assembly is required only for the venting con­figurations listed in Figure 16-2.

The Vent Restrictor Kit includes one vent
restrictor base, two wings, and four screws

(see Figure 16-1).

1. Refer to Figure 16-2.

For venting configurations listed under

“Setting 1”:

Use the vent restrictor base only

(no assembly is required).

For venting configurations listed under

"Setting 2" or "Setting 3":

Use the four provided screws to attach

the two wings to the vent restrictor

base in the applicable position.

2. If the baffle and back panel are already

installed, remove them before proceeding.

See Page 28.

3. Install the vent restrictor assembly from

inside the firebox. With the flaps on the

vent restrictor base facing UP, carefully

bend the flaps inward just enough to slide
the assembly up into the vent collar, as
shown in Figure 16-3).

The vent restrictor is held in place by fric-

tion only.

The entire vent restrictor assembly must
be up inside the vent collar, with no portion
showing inside the firebox.

Vent Restrictor Assembly Settings and Applications

Setting 1 (Vent Restrictor Base only) is required for the following configurations:

•Horizontalterminationwithtotalverticalrunofmorethan6ft.

•Verticalterminationwithtotalverticalrunof6–10ft.

Setting 2 is required for the following configuration:

•Verticalterminationwithtotalverticalrunof10+–40 ft.

Setting 3 is required for the following configuration:

•Verticalterminationwithtotalverticalrunof40+–60 ft.

Figure 16-2

16

Vent Restrictor Kit

(provided with replace)

(1) Vent Restrictor Base

(2) Wings (4) Screws

Figure 16-1

“Flaps”

Firebox

by friction only)

Figure 16-3: Vent Restrictor Installation

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

Vent

Collar

Vent
Restrictor
Assembly

(held in place

[DETAIL]

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

VENTING INSTALLATION

(CONTINUED)

USING SECURE FLEX™ KITS
AND COMPONENTS

Secure Flex™ venting kits and components may

be used in any venting application in place of rigid

Secure Vent™ (SV4.5) direct-vent components.
All restrictions, clearances and allowances that

pertain to the rigid piping apply to the flexible
venting. Secure Flex kits may not be modified;

also, under no circumstances may separate
sections of flex pipe be joined together.

Using adaptor (SV4.5RF), Secure Flex kits
may be added to the end of a vent run made
up of rigid Secure Vent (SV4.5) vent sections
provided that doing so does not violate any of

the venting length, height, routing, horizontal

to vertical ratio requirements or clearance
considerations detailed in this manual.

Secure Flex kits come with an adaptor that
can be fitted to the inclined channel end of
the last Secure Vent (SV4.5) vent section in a
rigid system in the exact same fashion as any
other Secure Vent section. Align the dimpled
end of the adaptor over the previously installed

section or appliance collar, adjusting the radial

alignment until the four locking dimples of the
adaptor are aligned with the inlets of the four
incline channels of the last vent section or collar.

Push on the adaptor until it fully engages, then

twist the adaptor clockwise running the dimples
down and along the incline channels until they
seat at the end of the channels.

To attach the flexible vent to the adaptor

(Figure 17-1):

A. Install Inner Flex Pipe

1. Install the small gear clamp loosely around

the inner exible vent pipe, push it back out

of the way.

2. Apply a bead of Mill-Pac Black (700° F) high
temperature sealant - Catalog No. 10K81

to the inner adaptor collar, approximately

1/2 inch from the end.

3. Pull and extend the inner flexible vent pipe.

4. Slide the inner flex pipe over the adaptor col-

lar. Ensure the flexible vent pipe completely
engages the adaptor collar to a distance of

1 3/4 inches from the end, and that it is free

from damage or tears.

5. Slide the gear clamp down and tighten it
fully to secure the flexible vent to the adaptor

inner collar approximately 3/4 inch from the

end of the flex.

6. Install three screws, 120 degrees apart,
through the flexible vent pipe and into the
adaptor collar just below the gear clamp to
provide additional security to the connec­tion.

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

Note: Outer Pipe Is Pulled Away To
Show The Detail of The Inner Pipe

APPLY ONLY MIL-PAC BLACK
HIGH TEMPERATURE SEALANT
(Cat. No. 10K81) to the outside
surface of both collars of the
adaptor (be especially careful to
fill the grooves of the outer collar
to be covered by the flexible pipe)
and slide flexible pipe over inner
and outer adaptor collars.

1 3/4 inch (44 mm) Flexible
Pipe and Adaptor Outer Collar
Overlap

Adaptor (SV4.5RF)

Attach Adaptor to Appliance

Figure 17-1

Collar, or Secure Vent Sections

B. Install Outer Flex Pipe

1. Install the large gear clamp loosely around

the outer exible vent pipe, push it back out

of the way.

2. Apply a bead of Mill-Pac Black (700° F) high
temperature sealant - Catalog No. 10K81)

to the outer adaptor collar; to the grooves
of the collar which extend approximately 1

inch from the end and to the at surface,

approximately 1-3/8 inches from the end.

3. Pull and extend outer flexible vent pipe.

4. Slide the outer flex pipe over the adaptor col-

lar. Ensure the flexible vent pipe completely
engages the adaptor collar to a distance of

1-3/8 inches from the end, and that it is free

from damage or tears.

5. Slide the gear clamp down and tighten it
fully to secure the flexible vent to the adaptor

outer collar approximately 3/4 inch from the

end of the flex.

6. Install three screws, 120 degrees apart,
through the flexible vent pipe and into the
adaptor collar just below the gear clamp to
provide additional security to the connection.

C. Route Flex Vent

Ensure that the flex vent is properly routed to
provide the required clearance. Do not allow the

exible vent to bend in a radius tighter than 5"
(127 mm). Refer to Figure 17-2. Space out the

internal flex vent spacers evenly - approximately
every 6 inches - and avoid kinking of inner pipe.
Support horizontal sections of flex with metal

straps at 2 foot (0.61 m) intervals.

Flex Vent

Securing Screw - 3 Places
Equidistant (equally spaced)
Just Below Gear Clamp)

Gear Clamps

1 3/4 in. (44 mm) Flexible
Pipe and Adaptor Inner Collar
Overlap

Securing Screw - 3
Places, 120° apart
(equally spaced) Just
Below Gear Clamp

D. Install Firestop/Spacer at ceilings and
walls When Secure Flex penetrates a wall

or ceiling, a restop/spacer is required: use
the SF4.5 VF restop/spacer for ceilings and
the SF4.5 HF restop/spacer for walls. See

the appropriate sections and figures shown
throughout the venting section for their instal­lation requirements.

Flexible Vent
Section

5” (127 mm)

Radius

Figure 17-2

Minimum

E. Attach Flex Vent to Termination -
Secure Flex components can be purchased
separately and attached to bulk lengths of Se­cure Flex flexible tubing cut to size at the job
site. Secure the flexible vent to the Secure Flex

terminations in the same manner (see Figure
17-2) as it was attached to the adaptor.

Note: Secure Flex vent must be attached to
Secure Flex terminations only. DO NOT sub­stitute Secure Vent terminations or the Secure
Vent adaptor for Secure Flex components.
The collars of Secure Flex terminations and
adaptors have a different diameter than that
used with the Secure Vent pipe. Additionally,
Secure Flex components have an extended
length center tube for use in attaching the
flexible vent.

17

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

VERTICAL
TERMINATION SYSTEMS

TYPICAL VERTICAL
TERMINATION SYSTEMS

• Typical vertical termination systems are

shown in Figures 18-1, 18-2, and 18-3.

• Select the vent design that matches your
requirements, and make sure the vent run

conforms to the rise-to-run ratios listed in
Figure 18-4.

• See the “VENTING INSTALLATION” section

(Pages 13–17) for additional details.

H

Vertical Termination

Flashing and
Storm Collar

See “CLEARANCES”
section in this
manual.

Vertical Firestop/
Spacer

u

Max. 60 ft

(18 m)

Min. 6 ft

(1.8 m)

Figure 18-1: Vertical Termination System

SecureVent™
Vent Sections



VERTICAL TERMINATION
SYSTEM RISE-TO-RUN RATIOS

Max. Total H Min. Total V

feet (meters) feet (meters)

5 (1.524) 3.3 (1.006)
10 (3.1) 6.5 (1.981)
15 (4.65) 10 (3.048)
20 (6.096) 13.5 (4.115)

Total H = Max. 20 ft (6.096 m).
Total H + Total V = Max. 60 ft (18.3 m).

Example: A 20-ft total Horizontal vent run
requires min. 5 ft total vertical venting.

Figure 18-4

__________

u Vertical Firestop/Spacer must be used

anywhere vent pipe passes through a
combustible floor or ceiling.

.25Horizontal Firestop/Spacer must be used

anywhere vent pipe passes through a
combustible wall.

.25For details, see “Firestop/Spacer Require-

ments” on Page 13.

 Install the provided Vent Restrictor, if re-

quired (see Page 16).

 A 90° elbow may NOT be attached directly

to the appliance collar. A minimum of 6"
pipe must be used between the fireplace
collar and a 90° elbow. For more details,

see “Elbows” on Page 14.

Vertical Firestop/
Spacer

u

Horizontal
Firestop/
Spacer

V

1

u





Figure 18-2: Vertical Termination System with Two 90° Elbows

18

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

Vertical Firestop/

V

1

Spacer

u

Horizontal Firestop/
Spacer

u



H

H

1

V

V



Figure 18-3: Vertical Termination System with Three 90° Elbows

Storm
Collar

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

LOWEST DISCHARGE OPENING OF VENT

TERMINATION HEIGHTS FOR VENTS ABOVE

FLAT OR SLOPED ROOFS

VERTICAL TERMINATION SYSTEMS

(CONTINUED)

VERTICAL VENT TERMINATION
CLEARANCES

• For vertical (roof) termination, the minimum

vent height above the roof and/or adjacent

walls is specied in ANSI Z223.1, latest
edition (in Canada, the current CAN/CSA­B149.1 installation code) and by major

building codes. Always consult your local
codes for specific requirements. A general
guide to follow is the Gas Vent Rule.

• Terminate multiple vertical vents according

to the installation codes listed above. Also
see Figure 19-1.

• Terminate single vertical vent caps relative
to other existing building components, as

shown in Figure 19-2.

Min. 12"

(305 mm)

Figure 19-1: Clearance for Multiple
Vertical Vent Terminations

INSTALLING VERTICAL VENT
TERMINATION

1. Install roof flashing.

a. After framing the roof opening (Page 9),

extend vent sections through roof struc­ture.

b. Install roof flashing over the vent section

(Figure 19-3), and position so the vent
column rises vertically (use a carpenter’s
level) .

c. Nail along the perimeter to secure the

ashing, or adjust roong to overlap ash­ing edges at top and sides only. Trim where
necessary.

d. Seal top and both sides of flashing with

waterproof caulking.

Horizontal Overhang

2 FT MIN.

Vent

Termination

Storm Collar

Flashing

Concentric

Vent Pipe

2 FT
MIN.

Lowest

Discharge

Opening

H*

1 inch (25.4 mm) Minimum
Clearance to Combustibles

*H = MINIMUM HEIGHT FROM ROOF TO

Vertical
Wall

X

12

Roof Pitch is X/12

Figure 19-2: Termination Heights for Vertical Vents
above Flat or Sloped Roofs

2. Install storm collar.

Note: Refer to "Vertical Vent Termination
Clearances" on previous page.

Install the storm collar (supplied with the
ashing) over the vent/ashing joint (see
Figure 19-3):

a. Loosen the screw on the storm collar, and

slide the collar down until it meets the top
of the flashing.

b. Tighten the adjusting screw.

c. Apply non-combustible caulking (silicone

caulking is acceptable) around entire cir-

cumference to ensure a water-tight seal.

Storm

Flashing

Figure 19-3: Installing Storm Collar

Collar

Vent/air Intake Termination Clearances
Above the High Side of an Angled Roof

(Ref. NFPA 54 / ANSI Z223.1)

Roof Pitch

Flat to 6/12 1.0 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 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 4.0 1.22

12/12 to 14/12 5.0 1.52
14/12 to 16/12 6.0 1.83

16/12 to 18/12 7.0 2.13

18/12 to 20/12 7.5 2.29
20/12 to 21/12 8.0 2.44

H*

Feet Meters

3. Install vertical termination.

Extend the vent sections to the height shown
in “Vertical Vent Termination Clearances”

(Figure 19-2).
The vertical termination (Figure 19-4) installs

in the same manner as the other vent sections

(see “Attaching Secure Vent™ Components”
on Page 13).

• If the vent system extends more than
5 feet (1.5 meters) above the roof ashing,
stabilizers are required (not provided).

• Additional screws may be used at section

joints for added stability.

• Guide wires may be attached to the joint for

addi tional support on multiple joint configu­rations.

Figure 19-4: Attaching Vertical
Termination

19

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

HORIZONTAL
TERMINATION SYSTEMS

TYPICAL HORIZONTAL
TERMINATION SYSTEMS

Note: Building codes limit or
prohibit horizontal termination
in specific areas. For location
guidelines, see Page 22.

• Typical horizontal termination systems are

shown in Figures 20-2, 20-3, and 20-4.

• Select the vent design that matches your

requirements and make sure the vent run
conforms to the rise-to-run ratios listed in
Figure 20-1.

• See the “VENTING INSTALLATION” section

on Pages 13–17 for additional details.

HORIZONTAL TERMINATION
SYSTEM RISE-TO-RUN RATIOS

Max. Total H Min. Total V

feet (meters) feet (meters)

2 (0.610) 1 (0.305)

4.5 (1.372) 3 (0.914)
6 (1.829) 4 (1.220)

7.5 (2.286) 5 (1.524)
9 (2.743) 6 (1.729)

15 (4.572) 10 (3.048)

Total H = 15 ft (4.572 m) max.
Total H + Total V = 60 ft (18.3 m) max.

Example: 15 ft total Horizontal vent run requires
a min. of 10 ft total Vertical vent.

Figure 20-1

__________

u 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.

For further details, see “Firestop/Spacer

Requirements” on Page 13.

 Install the provided Vent Restrictor, if

required (see Page 16).

 A 90° elbow may NOT be attached di-

rectly to the appliance collar. A minimum
of 6" pipe must be used between the fire­place collar and a 90° elbow. For more

details, see “Elbows” on Page 14.

H

Horizontal

Termination

Horizontal Firestop/

Spacer

Figure 20-2: Horizontal Termination with One 90° Elbow

Horizontal

Termination

Figure 20-3: Horizontal Termination with Two 90° Elbows



H

1

H

1



u

Horizontal Firestop/

Spacer

u

Vertical Firestop/

Spacer u

Vertical Firestop/

Vertical Firestop/Spacer



Horizontal
Termination

Horizontal Firestop/

Spacer

u

V

1

Spacer u

H

H





V





V



u



V

20

Figure 20-4: Horizontal Termination with Three 90° Elbows

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

Horizontal Vent Termination Clearances

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

HORIZONTAL TERMINATION SYSTEMS

(CONTINUED)

HORIZONTAL VENT
TERMINATION CLEARANCES

• The horizontal vent termination must have
a minimum 6" (152 mm) clearance to any

overhead combustible projection less than

or equal to 2-1/2" (64 mm).

• For projections greater than 2-1/2" (64
mm), see Figure 21-1.

• For additional vent location restrictions, see

Page 22.

Combustible Projection greater

than 2-1/2 inches in length

Ventilated

Soffit

Unventilated

Soffit

18"

(457 mm)

(305 mm)

Side Elevation View

Figure 21-1: Horizontal Termination Clearances

Our horizontal terminations meet or exceed industry standards and are designed to per­form in a wide range of weather conditions.

NEVER place a horizontal termination where water from eaves or roof lines may create a
heavy flow of cascading water onto the termination cap. If the cap must be placed where
the possibility of cascading water exists, it is the responsibility of the builder to direct the
water away from the termination cap using gutters or other means.

Carefully follow the installation instructions for the termination, including the use of sili­cone caulking where required.

Combustible Projection

inches or less in length

2-1/2

12"

Termination Kit

6"

(152 mm)

All horizontal terminations
may be located as close as
6” (152mm) to any
(non-combustible and
combustible) exterior
sidewall. This distance
may be decreased to 2”
(51mm) for non-­combustible exterior
sidewalls only, if the
SV4.5HT-2 termination
is used.

Note: See Page 23 for exterior wall recess allowances
with horizontal termination.

NOTICE

Termination Kit

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

21

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

HORIZONTAL TERMINATION SYSTEMS

(CONTINUED)

EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS (ANSI/CSA)

NOTE: Local Codes Or Regulations

* See Item D in the Text Below.

*18”

Horizontal
Termination

B

V

L

Exterior Wall

V

6”

Inside Corner

Detail D

F

V

A

Ventilated Soffit

V

Fixed

Closed

Window

V

C

X

= Air Supply Inlet

C

C

C

V

Inside

Corner Detail

V

A

B

Operable

V

Window

B

B

= Vent Termination

G

B

= Area where Termination is not Permitted

May Require Different Clearances.

NOTE: Location Of The Vent Termination
Must Not Interfere With Access To The
Electrical Service.

= 9” in U.S.

A

= 12” in Canada

3 ft.

X

A

A

3 ft.

J

N

H

M

I

P

N

O

V

Q

D

E

V

V

22

Figure 22-1

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

HORIZONTAL TERMINATION SYSTEMS

(CONTINUED)

INSTALLING HORIZONTAL VENT
TERMINATION

1. Assemble vent run to exterior wall.

a) If not already done, prepare an opening as

described in Figure 23-1.

b) Assemble the vent system to the point

where the end of the last section is within

5 to 8-1/2 inches (127 to 216 mm) inboard

of the exterior surface to which the termina­tion will be attached. See Figure 23-1 and
23-3.

If the end of the last section is not within this

distance, use the telescopic vent section as
the last vent section (see Page 14).

Note: For walls thicker than those shown in

Figure 23-2, see Figure 23-3, which lists addi­tional venting components needed (in addition
to the termination and adaptor) for a particular

range of wall thicknesses.

2. Attach termination adaptor.

See Figure 23-2. Attach the termination
adaptor (provided with the termination) to

the vent section (or telescoping vent section
or elbow) in the same manner as the other

vent components (see "Attaching Secure Vent
Components" on Page 13).

Note: If blown insulation is to be
used, the Through-Wall Shield Kit
(H5816) MUST be installed.

3. Install firestop/spacer

at exterior wall.

See Figure 23-1. Install the firestop/spacer
over the opening at the exterior side of the

framing, long side up, with the 3-inch spacer
clearance at the top, and nail into place. (The

firestop/spacer also may be installed over the

opening at the interior side of framing).

4. Install horizontal termination.

a) From outside the exterior wall, slide the

horizontal termination collars onto the
termination adaptor (the outer termina-

tion collar INSIDE the outer diameter of the

adapter, and the inner termination collar
OUTSIDE the inner diameter of the adapter)

until the termination seats against the exte­rior wall surface to which it will be attached.

b) Orient the termination housing with the

arrow pointing UP (see Figure 23-2).

c) Secure the termination to the exterior wall.

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

5-1/8"

(130 mm)

(178)

12-1/8"

(308 mm)

Adapter

SV4.5RCH

6 to 48 inch Vent Section,

Telescopic vent section,

Elbow or Appliance Collar

Firestop/Spacer (SV4.5HF) shown
on the exterior side of the wall. It

may also be installed on the

interior side.

7"

10-1/2"

(267 mm)

Note: Centerline of Vent Piping is

NOT the Same as the Centerline of

the Frame Opening.

See Page 8 for min. height from appliance
base to vertical centerline of vent pipe.

Base of Appliance

Termination

1"

(25.4 mm)

Figure 23-1: Installing Horizontal Termination

Max. 9-1/4" (235 mm)

Interior Surface of

Finished Wall

Maximum Extent of

Caulk*

Siding

Caulk*

Stucco

*Use silicone caulk to seal the top and sides of the termination,
up to the underlayment, stucco, or masonry wall surface.

**For walls thicker than 9-1/4", see Figure 23-3.

Vent Run Section
Relative to Exterior
Surface of Framing

Last Vent Section

(Use Telescopic
Vent Section,

if necessary.)

Typical Horizontal
Termination

Termination

Adapter

Wall Thickness**

Exterior Surface of Siding

Exterior Surface
of Framing

6" to 9-1/4"
(152 to 235 mm)**

Typical Horizontal
Termination

Max. 1-1/4" Recess of
Horizontal Termination into
Exterior Finishing Material

Figure 23-2: Horizontal Termination Venting Connection and Exterior Wall Recessing

NOTE: The horizontal termination must not
be recessed into the exterior wall or siding
by more than 1-1/4" (32 mm), as shown in

Figure 23-2.

CAUTION: The vent termination is HOT
while in operation and for a period of time
following fireplace use. To prevent con­tact with hot surfaces, use a Termination
Guard, which can be purchased at your
local dealer. (See “Installation Accesso-

ries” in this manual for catalog numbers.)

Use the table in Figure 23-3 when selecting
venting components for a particular range of
exterior wall thicknesses.

REQUIRED HORIZONTAL VENTING COMPONENTS

BASED ON EXTERIOR WALL THICKNESS

Ext. Wall Thickness

inches (mm)

6 to 9-1/4

Required Horizontal

Vent Components

• Termination Kit

(152 to 235)
10-3/4 to 14

(273 to 356)
16-3/4 to 20

(426 to 508)
11-3/4 to 20

(299 to 508)

• Termination Kit

• 6-inch Vent Section

• Termination Kit

• 12-inch Vent Section

• Termination Kit

• Telescopic Vent Section

Figure 23-3

Typical

Shown

3"

(76 mm)

23

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

P/N 580491-01

ELECTRONIC WIRING DIAGRAM FOR GRAVITY VENT FIREPLACES

JUNCTION BOX

120V AC

REMOTE RECEIVER

ON/OFF SWITCH

WALL SWITCH

LIMIT SWITCH

B-VENT MODELS

ONLY

AC/DC
POWER
ADAPTOR

HOT

NEUTRAL

OPTIONAL

GROUND

BATTERY HOLDER

DFC WIRE HARNESS

SPARK WIRE CABLE

PILOT GROUND WIRE

PILOT
SENSOR
CABLE

HOOD

IGNITER ROD

FLAME SENSOR

PILOT TUBE

OPTIONAL CPI SWITCH
OFF (O) = INTERMITTENT PILOT MODE
ON (-) = STANDING PILOT MODE

PROFLAME DFC BOARD

PROFLAME VALVE

ELECTRONIC PILOT ASSEMBLY

B = BLACK
BR = BROWN
GY = GRAY
PU = PURPLE
R = RED

BL = BLUE
G = GREEN
O = ORANGE
W = WHITE
Y = YELLOW

WIRING COLOR CODE

B

B

B

R

R

W

W

B

B

B

B

BL

BL

G

G

O

Y

Y

R

R

Y

W

G

G

O

SCHEMATIC REPRESENTATION ONLY

FIELD WIRING

CAUTION: Label all wires prior to discon­nection when servicing controls. Wiring
errors can cause improper and dangerous
operation.

ATTENTION: Au moment de l'entretien
des commandes, étiquetez tous les fils
avant de les débrancher. Des erreurs
de cáblage peu-vent entraîner un fonc­tionnement inadéquat et dangereux.

Verify proper operation after servicing.

S’assurer que l'appareil fonctionne adé­quatement une fois l'entretien terminé.

CAUTION

Ground supply lead must be con­nected to the wire attached to the
green ground screw located on the
outlet box. Failure to do so will
result in a potential safety hazard.
The appliance must be electrically
grounded in accordance with local
codes or, in the absence of local
codes, the National Electrical Code,
ANSI/NFPA 70, latest edition (in
Canada, the current CSA C22-1
Canadian Electrical Code).

FIELD WIRING STEPS

Route wiring and install electrical components
in the order described in this section.

Route fireplace wiring.

(See Figures 24-1 and 24-2)

Note: The electronic appliance must be
connected to the main power supply.

1. Route a 3-wire, 120 Vac, 60 Hz, 1ph power
supply (not provided) to the appliance

junction box.

2. Remove the electrical inlet cover plate from
the back of the unit by removing the plate’s
securing screws. The junction box can be
moved to the bottom of the fireplace for
bottom electrical entry.

Green

Tab Intact

Green
Ground
Screw

Figure 24-1: Junction Box Wiring

Neutral
Side of
Receptacle

White

Tab Intact

Hot
Side of
Receptacle

3. Remove the cover plate knockout; then
feed the power supply wire through the
knockout opening and into the unit junction
box.

4. Connect the black power supply wire to

the power outlet’s red pigtail lead and the
white power supply wire to the common
terminal of the outlet.

5. Connect the ground supply wire to the
pigtail lead attached to the outlet’s green
ground screw.

6. After wiring is complete, replace the cover

plate.

Ground - Green
Neutral - White

120 VAC - Black

(Power Supply

Unswitched)

WIRING

Black

Junction Box

J-BOX / RECEPTACLE

120V, 60HZ, 1PH

Field Wired

Factory Wired

24

Figure 24-2

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

FIELD WIRING

(CONTINUED)

Install batteries for battery backup.

Batteries are only required to operate the unit
in the event of loss of 120 VAC line power.

1. Remove the surround, if installed.

2. Remove the door for easier access.

3. The battery holder is attached via cable to
the IPI/CPI bracket on the left hand side
Pull the cable until the battery holder is
visible. Turn the battery holder such that it
will clear the unit and can be removed from

the unit (the black and red wires will still
be connected to the unit).

4. Place the 4 provided AA batteries into the
holder. Align the (–) end of the batteries the

the spring end of the holder.

5. Replace the battery holder and other

removed components (if applicable) in

reverse order.

Install and initialize remote control
system.

The remote control system provides remote

ON/OFF burner operation.

REQUIRED ITEMS (not provided):

• Standard Junction Box

TECHNICAL DATA

Supply Voltage, Remote Control/Transmitter:

4.5 V (three AAA batteries)

Supply Voltage, Wall Switch/Receiver:

6.0 V (four AA batteries)

Ambient temperature rating:

32–140°F (0–60°C)

Radio frequency:
315 MHz

Installing and Wiring the Receiver
(Wall Switch)

IMPORTANT!
PLACE THE RECEIVER WALL SWITCH IN THE

"OFF" POSITION DURING INSTALLATION OR
MAINTENANCE.

THE HANDHELD REMOTE TRANSMITTER
AND RECEIVER WALL SWITCH ARE RADIO
FREQUENCY APPLIANCES. IF THE RECEIVER
WALL SWITCH IS MOUNTED INSIDE A
METALLIC CASE, SEVERE LOSS OF PERFOR­MANCE (REDUCTION IN WORKING RANGE)
MAY RESULT.

TURN OFF MAIN GAS SUPPLY TO THE APPLI­ANCE DURING INSTALLATION OR MAINTE­NANCE OF THE RECEIVER.

TURN OFF MAIN GAS SUPPLY TO THE APPLI­ANCE BEFORE REMOVING OR REPLACING

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

Figure 25-1

BATTERIES IN RECEIVER WALL SWITCH.

The receiver accepts commands from the
handheld remote control transmitter to turn
the flame on and off.

Use the slider switch (Figure 25-2) to set the
receiver to one of three positions:

• ON (manually turns on the burner)

• REMOTE (remote ON/OFF burner control)

• OFF (manually turns off the burner)

The wall switch receiver may be installed in
a standard single gang wall switch box or in
a low temperature area of the appliance. See

Figure 25-1.

Receiver (Wall Switch) Functionality

The Receiver is supplied by four (4) AA batter­ies, see Fig. 3. The receiver accepts commands

via radio signal sent from the transmitter.

When the system is turned on, an acoustic
signal (“beep”) is generated to indicate that the

Receiver is ready to receive commands from
the Remote Control.

Remote Control Functionality

When the batteries are installed in the remote
control and the side slider is in the position
shown in Figure 25-2, the LED on the trans-

mitter illuminates each time the ON/OFF button

is pressed.

Initializing the Remote Control System

To program the transmitter to the receiver,

slide the wall switch to the REMOTE position

(see Figure 25-2) and press the ON/OFF key on

the handheld remote control.

The system has an automatic learning mode
that allows the receiver to synchronize with
a new transmitter in the event the transmitter
must be replaced. As soon as the receiver
receives the first correct command from any
remote control, it will beep (3) times to con­firm synchronization.

(Continued on next page)

WARNING

Fire hazard. Can cause severe
injury or death. The receiver
causes ignition of the appli­ance. The appliance can turn
on suddenly. Keep away from
the appliance burner when
operating the remote system or
activating manual bypass of the
remote system.

CAUTION

Property damage hazard. Excessive
heat can cause property damage.
The appliance can stay lit for many
hours. Turn off the appliance if it
is not going to be attended for any
length of time. Always place the
Transmitter where children can not
reach it.

Three-position slider switch
in REMOTE position

ON

REMOTE

OFF

Figure 25-2: Receiver (Wall Switch)

Safety
Lock

Burner ON/OFF

Figure 25-3: Transmitter (Remote Control)

25

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

Remote Control System (continued)

Turning ON the Appliance

When the ON/OFF key is pressed (see Figure
25-3), the LED on the transmitter illuminates

and the Remote Control is switched on.

Turning OFF the Appliance

If the appliance and the Remote Control are

switched on, when the ON/OFF key is pressed
(see Figure 25-3), the Remote control is
turned off. The receiver beeps (2) times.

Low Battery Detection (Remote Control)

The life of the Remote Control batteries

depends on many factors, including battery

quality and number of appliance ignitions.

When the transmitter batteries are low, the

LED light will be dim to alert of a low battery
condition before losing all power. As soon as
the depleted batteries are replaced, the Trans­mitter will restart its normal operation.

Low Battery Detection (Receiver Wall Switch)

If the receiver batteries are low, a triple acous­tic signal will be emitted by the receiver when
it receives a command from the transmitter

depressing the ON/OFF key. This is an alert of

a low battery condition before losing battery
power at all. As soon as the depleted batter-

ies are replaced, the acoustic signal from the
receiver conrms the reception of the ON/OFF

command from the transmitter.

Child Safety Lockout

With this function it is possible to deactivate
the remote control key (see Figure 25-3).

Backup Function

If the batteries of the Receiver are low, the

appliance can be switched on manually by
moving the slider switch on the Receiver to the
ON position (see Figure 25-2).

INSTALLING FIREPLACE
COMPONENTS

Install all fireplace components in this section

in the order listed below.

Note: Complete all steps under
“FIELD WIRING” (previous two
pages) before proceeding.

Install vent restrictor.

[PROVIDED WITH FIREPLACE;
REQUIRED WITH CERTAIN VENT RUNS]

If not already done, install the provided vent
restrictor (if required for your specic venting
con g uration) before proceeding. See Page

16 for complete details.

26

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

Reinstall rear floor section.

1. See Figure 27-1. Place lower back edge of rear floor section on rear
ledge of replace, behind the tabs.

2. Align outermost front hole on either side of rear floor section with
hole in center lower tab in each side panel. Pull rear floor section

forward until it butts up against the burner, and secure using (3) of
the #10-16 x 3/8 hex head sheet metal screws provided with the Floor
Kit (one screw per side).

Side Panel

(Center Lower Tab)

Rear

Floor

Section

Reinstall front floor section.

1. See Figure 27-2. Engage lower front lip of front floor section under
locking clips attached to fireplace front ledge, and then slide it back.

2. Align notches in back edge of front floor section over holes in rear
floor section. Push front floor section backward until it butts up against

burner, and secure using (2) of the #10-16 x 3/8 hex head sheet metal
screws provided with the Floor Kit (one screw per side).

Install media.

1. Place an even layer of media in the recessed area around the burner

(see bold outlined area in Figure 27-3; also refer to Figure 32-1).

IMPORTANT!

• Do NOT mound up media.

• If using multiple colors of media, NEVER use more than

five (5) pounds total (approx.) at one time.

Figure 27-1

Front
Floor

Section

Lip

Front

Ledge

Tab

Notch

Rear
Floor

Section

Rear
Ledge

~

Place media in EVEN LAYER in recessed area

in oor (area outlined in bold in this illustration).

Do NOT mound up media.

Figure 27-3: Placement of media

WARNING

IMPORTANT!
Do NOT place
media on burner
or around pilot.

• HANDLE MEDIA ONLY WHEN COOL. Turn OFF all
electricity to the appliance before installing media.
Media gets very HOT during fireplace use and will
remain hot up to ONE HOUR after the gas supply is
turned off.

• Any attempt to use media not specified for your fire-
place configuration will result in incomplete combus­tion, sooting, and poor flame quality, and will void
the warranty.

Figure 27-2

Locking Clip

27

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

Reinstall baffle.

With the baffle oriented as shown in Figure
28-1, slide the rear tabs into the slots in the

back panel.

While sliding the tabs into the slots, slide the

front lip of the baffle under the clips in the
firebox ceiling.

Clip

Baffle

Figure 28-1

Reinstall control compartment access
panel.

Reverse the steps shown under CONTROL
COMPARTMENT ACCESS on Page 12.

Firebox Ceiling

Tabs

Back Panel

WARNING

• The media was designed to provide a safe, reliable, attractive flame.
Any attempt to use media not specified for this fireplace will result
in incomplete combustion, sooting, and poor flame quality, and will
void the warranty.

• Media gets very HOT during fireplace use and will remain hot up to
ONE HOUR after gas supply is turned off. HANDLE MEDIA ONLY WHEN
COOL. Turn OFF all electricity to the appliance before installing media.

• If media is not installed according to the installation instructions,
flame impingement and improper combustion could occur, resulting
in soot.

• This appliance is NOT designed to burn wood. Any attempt to burn
wood in this fireplace may be a safety hazard, cause irrepairable
damage to the appliance, and void the warranty.

28

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

INSTALLING FIREPLACE COMPONENTS

(CONTINUED)

INSTALL GLASS DOOR ASSEMBLY

1. While holding the door assembly by the

side edges, hook the top edge to the re­place, and then swing the bottom edge in
toward the replace, taking care not to

damage the glass (Figure 29-1).

2. Align the screw holes below the door

assembly with the holes in the replace,
and secure using the (3) provided screws.

Reverse these steps to remove the glass door
assembly.

WARNING

HOT GLASS WILL CAUSE BURNS.

DO NOT TOUCH GLASS UNTIL COOLED.

• Remove glass door assembly only when
fireplace is OFF and COLD.

• Do not attempt to touch the front enclo-
sure glass with your hands while the
fireplace is in use.

•The glass on the front of the fireplace
reaches EXTREMELY HIGH temperatures
and can cause severe burns if touched.
Even after the gas is turned off, fireplace
surfaces remain extremely hot.

WARNING

Do not operate appliance with
the glass front removed, cracked
or broken.

AVERTISSEMENT

Ne pas utiliser l'appareil si le
panneau frontal en verre n'est
pas en place, est craqué ou brisé.

INSTALL MODESTY PANEL

To install the modesty panel, attach the 3 hooks
to the slots in the door, and then slide it to the
LEFT until fully seated.

INSTALL OPTIONAL SURROUND

Install the surround after wall finish is com­plete. See Pages 33 and 34.

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.

CAUTION

RISK OF PERSONAL INJURY

OR PROPERTY DAMAGE.

• Do NOT abuse glass door by striking or
slamming shut.

• Handleglasswithextremecare!Glassis

susceptible to damage; do NOT scratch or
handle roughly while reinstalling the glass
door frame.

• Never operate fireplace with glass door
assembly removed.

These direct-vent appliances are designed
to operate only when glass door assem-

bly is installed. Generally, the glass door
assembly should not be removed, except

when access to components within the
firebox is required.

• Do not attempt to substitute the materials
used on these doors, or replace cracked
or broken glass.

• Theglassdoor(s)ofthisappliance must

only be replaced as a complete unit as pro­vided by the manufacturer. Do not attempt
to replace broken, cracked or chipped glass
separately.

Glass Door Assembly

Rating plate and lighting instructions
are attached to door bracket.

Figure 29-1

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

29

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

VERIFYING APPLIANCE
OPERATION

With the gas line installed, run the initial

system checkout before closing up the front
of the unit.

Follow the pilot lighting instructions provided

in on the next page.

Note: Lighting instructions (and rating plate)
are also provided on a tag attached to one
of the lower door brackets.

When rst lighting the appliance, it will take

a few minutes for the gas line to purge itself

of air. Once purging is complete, the pilot and

burner will light and operate as indicated in the
instruction manual.

Appliance Checkout

To light the burner, slide the wall switch to the
ON position (or use the remote control with the

wall switch in the REMOTE position.

Ensure the ignitor lights the pilot. The pilot

ame should engulf the ame sensor rod, as

shown in Figure 30-1.

Ignitor

Pilot
Hood

Sensor

Figure 30-1

30

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

LIGHTING INSTRUCTIONS

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.

A. This appliance is equipped with an ignition device which

automatically lights the pilot. Do not try to light the pilot by
hand.

B. BEFORE OPERATING smell all around the appliance area for

gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.

• Do not touch any electric switch; do not use any phone in your

building.

OPERATING INSTRUCTIONS

1. STOP! Read the safety information above on this label.

2. Read the Care and Operation manual including the section on
"Remote Control System," (if applicable).

3. Slide the switch on the receiver, wall switch or ON/OFF switch
to "OFF."

4. Turn "OFF" all electric power to the appliance. Note: The control
may have a battery backup (remove batteries, if installed).

5. This appliance is equipped with an ignition device which
automatically lights the pilot. Do not try to light the pilot by hand.

6. Wait five (5) minutes to clear out any gas. If you then smell
gas, STOP! Follow “B” in
page. If you do not smell gas, go to the next step.

7. Turn on all electric power to the appliance. Note: The control
may have a battery backup (install batteries, if applicable).

8. Slide the switch on the receiver to REMOTE or ON/OFF switch /
wall switch to ON.

9. (if applicable) Press ON/OFF button on remote control
transmitter to "ON."

10. (if applicable)

setting.

11. If the appliance will not operate, follow the instructions "To
Turn Off Gas To Appliance" and call your service technician or
gas supplier.

Set thermostat on remote control to desired

the safety information above on this

TO TURN OFF GAS TO APPLIANCE

• 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.

C. If any portion of this appliance does not operate as the

instructions indicate, do not try to repair it, call a qualified
service technician. Do not use tools. Force or attempted
repair may result in a fire or explosion.

D. Do not use this appliance if any part has been under water.

Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been under water.

Electronic Gas Control

Valve - SIT

Electronic Pilot Assembly

Figure 31-1

1.

Slide the switch on the receiver, wall switch or ON/OFF

switch to "OFF.

2. (if applicable) Press ON/OFF button on remote control
transmitter to "OFF."

WARNING

DO NOT TOUCH GLASS UNTIL COOLED.

NEVER ALLOW CHILDREN TO TOUCH GLASS.

P/N 580491-01, REV. 00

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

3. Turn off all electric power to the appliance if service is to
be performed.

(remove batteries, if installed).

4. Close the main line gas shut-off valve.

Note: The control may have a battery backup

HOT GLASS WILL CAUSE BURNS.

31

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

VERIFYING APPLIANCE OPERATION

(CONTINUED)

ADJUSTING THE AIR SHUTTER

Note: Before adjusting the air
shutter, the glass door assembly
must be in place and secured.

Flame Appearance and Sooting

Proper flame appearance is a flame that is blue
at the base and becomes yellowish-orange in
the body of the flame. When the appliance is

rst lit, the entire ame may be blue and will

gradually turn yellowish-orange during the first
30 minutes of operation. After 30 minutes of

operation, if the ame is blue, or if the ame is
orange with evidence of sooting (black tip), the

air shutter opening may need to be adjusted.

If the air shutter opening is closed too far,

sooting may develop. Sooting is indicated by
black puffs developing at the tips of very long
orange flames. Sooting results in black depos­its forming on the appliance inside surfaces
and on exterior surfaces adjacent to the vent
termination.

Sooting is caused by incomplete combustion
in the flames and lack of combustion air enter­ing the air shutter opening. To achieve a warm
yellowish-orange flame with an orange body

that does not soot, the shutter opening must be

adjusted between these two extremes.

Figure 32-1: Proper Flame Appearance

Air Shutter Adjustment Lever

(Below door assembly)

If installed, the optional Surround can be

removed to provide easier access to the Air
Shutter Adjustment Lever.

Figure 32-2

[DETAIL]

Air Shutter Adjustment Guidelines

• If there is smoke or soot present, first ensure

that the flames are not impinging on any of
the panels. If the panels are properly posi-

tioned and a sooting condition still exists,

increase the air shutter opening.

• The more offsets in the vent system, the

larger the air shutter opening will need to be.

• An appliance operated with the air shutter

opened too far may have flames that appear
blue and transparent.

• Propane models may exhibit ames that

candle or appear stringy. If this is present

and persists, adjust the air shutter to a more
OPEN position, then operate the appliance for

a few more minutes to ensure that the flame
normalizes and the flames do not appear
sooty.

WARNING

• Air shutter adjustment should

only be performed by a qualified
professional service technician.

• Ensure front glass panel is in

place and sealed during adjust-

32

ment.

The following chart is provided to aid you in
achieving the correct air shutter adjustment
for your installation:

Air Shutter Adjustment Guidelines

Amount of

Primary Air

If air shutter is
closed too far

If air shutter is
open too far

Flame

Color

Flame will
be orange

Flame will
be blue

Air Shutter

Adjustment

Air shutter
gap should be
increased

Air shutter
gap should be
decreased

CAUTION

• Soot will be produced if the air

shutter is closed too much. Any
damage due to sooting resulting

Air Shutter Adjustment Procedure

To adjust the air shutter for proper flame
appearance (as illustrated in Figure 32-1):

1. Before adjusting the air shutter, allow the

2. Adjust the air shutter using the lever on the

• If the ame appears sooty, adjust the air shut-

ter until proper flame appearance is achieved.

• If the ame stays blue, gradually adjust the

air shutter to a more CLOSED position until
proper flame appearance is achieved.

from improperly setting the air
shutter is not covered under the
warranty.

• The air shutter door and nearby

appliance surfaces are hot. Exer­cise caution to avoid injury while
adjusting flame appearance.

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

burner to operate for at least 30 minutes
while observing the flame.

lower right side of the firebox (Figure 32-2).

• For more CLOSED air shutter, PULL
lever OUT (toward front of fireplace).

• For more OPEN air shutter, PUSH
lever IN (toward back of fireplace).

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

Before installing optional Surround, remove both filler/angle brackets and both side nailing flanges.

Left Side

Nailing

Flange

(removed)

Left Side Filler/Angle Bracket (removed)

Non-Combustible Fiber Board

Cut to height of installed top spacers.

Top Nailing

Flange

Right Side
Nailing
Flange

Top Nailing
Flange

Non-Combustible Fiber Board

Cut to height of installed top spacers.

Top Nailing

Flange

Right Side
Nailing
Flange

Top Nailing
Flange

FINISH
AND TRIM

INTERIOR WALL FINISH

A minimum 1" (25 mm) clearance is required

from the door frame outer edge to any finish
material.

Note: NEVER install combustible
material (wall finish, surround, trim,
etc.) on, in front of, or overlapping any
part of the appliance front face.

See Page 4 for Cold Climate Insulation

and Page 6 for Clearances.

Wall Finish Requirements
for Cleanface Finish

(without optional Surround)

1. TOP/BOTTOM NAILING FLANGES: Make

sure TOP and BOTTOM Nailing Flanges

are attached to fireplace in the correct
VERTICAL position for Cleanface Finish
and the correct HORIZONTAL position for
the wall finish material thickness (Page 9).

2. LEFT/RIGHT SIDE NAILING FLANGES:

Make sure the LEFT and RIGHT SIDE Nailing
Flanges are installed (see Figure 33-2).

Note: Fireplace ships from factory with

the all nailing flanges installed.

3. LEFT/RIGHT FILLER/ANGLE BRACKETS:

Make sure the two Filler/Angle Brackets are

installed (ref. Figure 34-2, next page).

Note: Fireplace ships from factory with

both Filler/Angle Brackets installed.

4. NON-COMBUSTIBLE FIBER BOARD: See

Figures 33-1, this page, and 34-1,next
page. Attach the provided non-combustible

ber board to the TOP Nailing Flange, and

secure using field-supplied screws.

Note: The provided non-combust ible
fiber board may be faced with any
NON-combustible finish material ap­propriate for use (brick, tile, stone,
high-temperature paint*, etc.).

5. INTERIOR WALL FINISH: Cover the lower

portion of the fireplace with finish material.

6. Skim-coat all drywall, and mud all joints.

Note: If skimming the provided Fiber

Board to match drywall, use Sheet-

®

rock

brand Durabond® 90 setting-

type joint compound to fill all joints.
*For painted wall finish, use two (2)

coats of quality primer and high-tem­perature paint on provided Fiber Board.

7. DOOR: After nishing all interior walls,

install the Glass Door Assembly, if not

already done (see Page 29).

____________

The following trademarks are owned by United States Gyp-

sum Company or a related company: Durabond, Sheetrock.

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

Installing Optional Surround

1. TOP/BOTTOM NAILING FLANGES: Make

sure TOP and BOTTOM Nailing Flanges are

attached to fireplace in the correct VERTI­CAL position for Surround finish and the
correct HORIZONTAL position for the wall
finish material thickness (see Page 9).

2. LEFT/RIGHT SIDE NAILING FLANGES:

REMOVE the LEFT and RIGHT SIDE Nail­ing Flanges (see Figure 33-2), and discard

using appropriate disposal methods.

3. LEFT/RIGHT FILLER/ANGLE BRACKETS:

REMOVE the two Filler/Angle Brackets (see

Figure 33-2), and discard using appropriate

disposal methods.

4. NON-COMBUSTIBLE FIBER BOARD: See

Figures 33-2 (this page) and 34-1 (next
page). Attach the provided non-combus-

tible ber board to the TOP nailing ange,

and secure using field-supplied screws.

Figure 33-1: Preparing for cleanface finish

Figure 33-2: Preparing for optional Surround finish

Wall Finish Requirements when

Note: The provided Non-Combust ible
Fiber Board may be faced with any
NON-combustible finish material ap­propriate for use (brick, tile, stone,
high-temperature paint*, etc.).

5. INTERIOR WALL FINISH: Cover the lower

portion of the fireplace with finish material.

6. Skim-coat all drywall, and mud all joints.

Note: If skimming the provided Fiber

Board to match drywall, use Sheet-

®

rock

brand Durabond® 90 setting-

type joint compound to fill all joints.
*For painted wall finish, use two (2)

coats of quality primer and high-tem­perature paint on provided Fiber Board.

7. DOOR: After nishing interior walls, install

the Glass Door Assembly, if not already

done (Page 29).

8. SURROUND: Attach the Surround, and

secure using the nine (9) screws provided
with the Surround Kit (see Figure 34-3).

Non-combustible
Fiber Board (secured

to TOP Nailing Flange)

33

Min. 1"

(25 mm)

Min. 3"

(76 mm)

Top Nailing Flange*

Bottom Nailing Flange*

Spacer

Combustible material NOT ALLOWED

BELOW THIS POINT on face of unit.

Lip on Top Nailing Flange

Bottom edge of Fiber Board abuts lip.

Combustible Wall Finish Material

Top Non-Combustible
Fiber Board (provided

with fireplace)

Wall
Stud

*

*

Insulation and combustible

material NOT ALLOWED in
clearance zones around vent
components.

*

Header

Header

Cleanface Finish Surround/Bezel Finish

*Position of Top
and Bottom Nailing
Flanges depends on
type and thickness
of wall finish. See
“UNIT NAILING
FLANGES” section.

For Surround finish,
cut Top Fiber Board
to height of installed
Top Spacers.

Combustible

material

NOT ALLOWED

BELOW THIS

POINT on

face of unit.

Side Non-Combustible

Fiber Board (one of two;

provided with fireplace)

Minimum 6"

Vertical Vent

and 90° Elbow

Min. 1"

(25 mm)

Min. 3"

(76 mm)

Spacer

Wall
Stud

*

*

Minimum 6"
Vertical Vent

and 90° Elbow

Min. 1"

(25 mm)

Min. 3"

(76 mm)

Min. 1"

(25 mm)

Min. 3"

(76 mm)

Wall

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

FINISH AND TRIM

Insulation and combustible

*

material NOT ALLOWED in
clearance zones around vent
components.

(CONTINUED)

Figure 34-1

Figure 34-2: Removing Filler/Angle Brackets
(When installing optional Surround only)

Removing Filler/Angle Brackets

Surround FinishCleanface Finish

(when installing Surround)
IMPORTANT!

•Remove filler brackets when installing Surround ONLY.

Do NOT remove filler brackets for Cleanface Finish, as they
are required for proper combustion.

•Nailing flanges were omitted in illustration for clarity only
(it is NOT necessary to remove nailing flanges when
removing filler brackets).

34

Figure 34-3: Installing Optional Surround

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

ATTACHING WARNING
LABELS

ATTACHING SAFETY-IN-OPERATION WARNINGS
It is the installer’s responsibility to ensure these warnings are properly affixed during installation. These warning labels are a

critical step in informing consumers of safe operation of this appliance.

ATTACHING SAFETY-IN-OPERATION
WARNINGS

It is required that the set of safety instruction labels
that have been furnished with the fireplace be affixed
to the operation and control points of the fireplace. A
safety instruction label must be affixed to the receiver
wall switch plate where the fireplace is turned on
and off (see Figure A) and on the remote control
handheld transmitter (see Figure B). To properly

complete the installation of this replace, locate the

multi-lingual adhesive labels provided with the Care
and Operation Instructions and proceed as follows:

1. Locate the wall receiver that controls the fireplace

(verify the switch operates the replace by turn­ing it on and off). Clean the wall receiver plate

thoroughly to remove any dust and oils. Affix
the label to the surface of the plate of the wall
receiver that controls the fireplace (Figure A).
Choose the language primarily spoken in the

home. If unknown, afx the English language

label.

2. Locate the remote control transmitter and
clean it thoroughly to remove any dust and
oils. Affix the label to the surface of handheld
transmitter (Figure B). Choose the language

primarily spoken in the home. If unknown, afx

the English language label.

3. If you are unable to locate the labels, please

call Lennox Hearth Products or your nearest
Lennox Hearth Products dealer to receive ad­ditional safety instruction labels free of charge.

Cat. No. H8024 Replacement Label Kit

LENNOX HEARTH PRODUCTS
1-800-9-LENNOX

Note: English is red text on clear label. French
and Spanish are white text on black label.

APPOSITION DES MISES EN GARDE RELATIVES
À LA SÉCURITÉ D’UTILISATION

Il est impératif que le jeu d’étiquettes de sécurité qui ont été
fournies avec le foyer soient collées à côté des dispositifs de
contrôle du foyer. Une étiquette de sécurité doit être collée
sur la plaque du récepteur mural contrôlant l’allumage du
foyer (voir Figure A) et sur le boîtier de la télécommande
(Figure B). Pour achever l’installation correcte de ce

foyer, procédez comme suit avec les étiquettes adhésives

en langues étrangères fournies avec les instructions
d’utilisation et d’entretien :

1. Repérez le récepteur mural qui contrôle le foyer

(vérifiez que l’interrupteur contrôle le fonction -

nement du foyer en le faisant basculer de Marche
à Arrêt, et vice-versa). Nettoyez soigneusement
la plaque du récepteur mural pour éliminer la poussière
et les traces de graisse ou d’huile. Collez l’étiquette sur
la surface de la plaque du récepteur mural qui contrôle
le foyer (Figure A). Choisissez la langue qui est
principalement parlée dans la résidence du propriétaire.

En cas de doute, collez l’étiquette en anglais.

2. Repérez la télécommande et nettoyez-la soigneuse­ment pour éliminer la poussière et les traces
de graisse ou d’huile. Collez l’étiquette sur le boîtier
de la télécommande (Figure B). Choisissez la
langue qui est principalement parlée dans la

résidence du propriétaire. En cas de doute, collez

l’étiquette en anglais.

3. Si vous ne trouvez pas les étiquettes, veuillez
appeler Lennox Hearth Products ou votre distribu­teur Lennox Hearth Products local pour recevoir
gratuitement des étiquettes supplémentaires.

Étiquettes de remplacement, n° cat. H8024

LENNOX HEARTH PRODUCTS
1-800-9-LENNOX

Remarque : Le texte anglais est rouge sur un support
transparent. Le texte français et espagnol est blanc sur un
support noir.

COLOCACIÓN DE ADVERTENCIAS DE
SEGURIDAD EN OPERACIÓN

Se requiere que el juego de etiquetas de instrucciones
de seguridad que se incluyeron con la chimenea se
coloque en los puntos de operación y control de la
misma. Se debe colocar una etiqueta de instrucciones
de seguridad en la placa del interruptor de pared
del receptor desde el cual se enciende y se apaga
la chimenea (ver la Figura A) y en el transmisor de
control remoto (ver la Figura B). Para completar

correctamente la instalación de esta chimenea,

encuentre las etiquetas adhesivas multilingües
incluidas con las instrucciones de cuidado y
operación y haga lo siguiente:

1. Identifique el receptor de pared que controla la

chimenea (verique que el interruptor opera la
chimenea encendiéndola y apagándola). Limpie

bien la placa del receptor de pared para quitar el
polvo y aceite. Pegue la etiqueta en la superficie
de la placa del receptor de pared que controla la
chimenea (Figura A). Seleccione el idioma que

más se habla en la casa. Si no sabe cuál es, use

la etiqueta en inglés.

2. Identifique el transmisor de control remoto y
límpielo bien para quitar el polvo y aceite. Pegue
la etiqueta en la superficie del transmisor (Figura
B). Seleccione el idioma que más se habla en la

casa. Si no sabe cuál es, use la etiqueta en inglés.

3. Si no puede encontrar las etiquetas, sírvase

llamar a Lennox Hearth Products o al distribuidor
de Lennox Hearth Products más cercano para
recibir etiquetas de instrucciones de seguridad
adicionales gratuitas.

Juego de etiquetas de repuesto - Nº de cat. H8024

LENNOX HEARTH PRODUCTS
1-800-9-LENNOX

Nota: La etiqueta en inglés es transparente con
texto rojo. Las etiquetas en francés y español son
negras con texto blanco.

SAFETY LABEL DIAGRAMS / DIAGRAMMES DES ÉTIQUETTES DE SÉCURITÉ / DIAGRAMAS DE ETIQUETAS DE SEGURIDAD

ON

Figure A Figure B

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

REMOTE

OFF

35

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

S

e

a

l

a

n

t

INSTALLATION
ACCESSORIES

Listed Secure Vent™ Components

Cat. No. Model Description

H1968 SV4.5HT-2 Horizontal Termination

with Firestop/Spacer (H2246)
and Adaptor (74L61)

Vent Sections

(Rigid)

The following flashings come packaged with a storm collar:

77L70 SV4.5L6 Straight, 6-inch (152 mm)
77L71 SV4.5L12 Straight, 12-inch (305 mm)
77L72 SV4.5L24 Straight, 24-inch (610 mm)
77L73 SV4.5L36 Straight, 36-inch (914 mm)

77L74 SV4.5L48 Straight, 48-inch (1219 mm)
77L75 SV4.5LA Telescopic Length Slip

Section (2" to 7-1/2" rigid)

77L76 SV4.5E45 Elbow, 45-degree

77L77 SV4.5E90 Elbow, 90-degree

77L78 SV4.5F Flat Roof Flashing

77L79 SV4.5FA 1/12 to 7/12 Adjustable

Flashing

77L80 SV4.5FB 7/12 to 12/12 Adjustable

Flashing

77L81 SV4.5SC6 Storm Collar (6 per box)

H6183 SV4.5HF5 Firestop/Spacer, 5", rigid

H6184 SF4.5HF5

Firestop/Spacer, 5", flex

H2246 SV4.5HF-10 Firestop/Spacer, Horizontal,

rigid (3-1-1 spacing) [10-pk]

H2247 SV4.5VF-10 Firestop/Spacer-Vertical,

rigid (1-1-1 spacing) [10-pk]

96K92 SV4.5SP Support Plate

Listed Secure Vent™ Components

Cat. # Model Description

17M52 SV4.5HGS-1 Termination Guard, Square

17M53 SV4.5HGS-12 Termination Guard,

87L02 SV4.5HGS Termination Guard for

H5820 SV4.5HTSK Termination Shroud

H5816 SV4.5-

TWSK10

H3907 SV4.5ARSA Attic Insulation Shield,

96K93 SV4.5SU Support Strap

10K81 SFMP Mill-Pac, Black, High-

89L40 SFMP-12 Mill-Pac, Black, High-

99L02 SV4.5HRK14 Horizontal Riser Kit, 14",

99L03 SV4.5HRK36 Horizontal Riser Kit, 36",

H1988 CTSA-33

H1985 CTSO-33

H1987 CTSO-44

H1986 CTSO-46

[1-pk]

(ref. manual 750109M)

Horizontal [12-pk]

(ref. manual 750109M)

Horizontal Termination
(Deluxe) [1-pk]

(ref. manual 750055M)

(Guard) for Horizontal
Termination [1-pk]

(ref. manual 750246M)

Through Wall Shield Kit
(to shield direct-vent pipe
from blown insulation)

(ref. manual 750247M)

adjustable height, 12"-22"

Temp. Sealant [1-pk]

Temp. Sealant [12-pk]

(ref. manual 750146M)

(ref. imanual 750146M)

Chase Top Shroud Kit,
Arch Top, 3 x 3 ft.

(ref. manual 750194M)

Chase Top Shroud Kit,
Open Top, 3 x 3 ft.

(ref. manual 750193M)

Chase Top Shroud Kit,
Open Top, 4 x 4 ft.

(ref. manual 750193M)

Chase Top Shroud Kit,
Open Top, 4 x 6 ft.

(ref. instr. 750193M)

36

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

INSTALLATION ACCESSORIES

(CONTINUED)

Listed Secure Flex™ Components

Cat. # Model Description

Termination kits include firestop/spacer, gear clamps, and flex adaptor.

60L10 SF-18 18 feet (5.49 m)*

98K03 SF-12 12 feet (3.66 m)*

H2248 SF4.5HF-10 Firestop/Spacer, Horiz.,

H2249 SF4.5VF-10 Firestop/Spacer, Vertical,

H1969 SF4.5HT-2 Horiz. Termination for flex

77L87 SFKIT12S Horiz. Termination for flex

77L88 SFKIT18S Horiz. Termination for flex

77L89 SFKIT24S Horiz. Termination for flex

77L90 SFKIT36S Horiz. Termination for flex

77L91 SFKIT48S Horiz. Termination for flex

56L74 SFVT30 Vertical Termination for

56L75 SFVT45 Vertical Termination for

91L66 SFGC4-6 Gear Clamp 4.5 in. (114

91L67 SFGC7-6 Gear Clamp 7.5 in. (190.5

H7748 H7748 36"

compressed flex

(ref. manual 750053M

compressed flex

(ref. manual 750052M)

flex

(3-1-1 spacing)

flex (1-1-1 spacing)

(without ex)

(with 12 inch [305 mm]*
compressed ex)

(with 18 inch [457 mm]*
compressed ex)

(with 24 inch [610 mm]*
compressed ex)

(with 36 inch [914 mm]*
compressed ex)

(with 48 inch [1219 mm]*
compressed ex)

flex (flat to 6/12) with flex

adaptor, section of rigid
vent, roof support collar
assembly, roof ashing

and storm collar

(ref. manual 750052M)

flex (6/12 to 12/12) with

ex adaptor, section of
rigid vent, roof support
collar assembly, roof
ashing, and storm collar

(ref. manual 750052M)

mm) for flex, 6-pk

mm) for flex, 6-pk

Flex

Connector Kit.

(36" of ex with two

adapters for mating two
rigid sections of vent

together.)

,10-pk

,10-pk

GAS CONVERSION KIT

A gas conversion kits is available to adapt your appliance from natural
gas to liquid propane. The kit contains all necessary components, includ­ing labeling that must be affixed to ensure safe operation.

Refer to the instructions and warnings provided with the conversion
kit when performing any gas conversion.

Gas Conversion Kits

Kit Model No. Kit Cat. No. Description

GCK-LDV42PN H8705 42" Liquid Propane to Natural Gas Conversion Kit
GCK-LDV42NP H8706 42" Natural Gas to Liquid Propane Conversion Kit
GCK-LDV54PN H8701 54" Liquid Propane to Natural Gas Conversion Kit
GCK-LDV54NP H8702 54" Natural Gas to Liquid Propane Conversion Kit

(Gas Conversion Kit manual P/N 506019-85)

*All compressed flex vents can be expanded up to two times.

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

37

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

REPLACEMENT
PARTS

Ordering Replacement Parts

Use only parts supplied from the
manufacturer.

With proper care and maintenance, your appli­ance will provide many years of enjoyment. If
you experience any problem, first refer to the
troubleshooting guide in this manual. If the
problem persists or you have any questions
about your fireplace system, contact your
Lennox Hearth Products dealer or distributor.

Order parts through your Lennox Hearth
Products dealer or distributor. Parts will be
shipped at prevailing prices at time of order.

When ordering parts, please provide the fol­lowing information:

1. Appliance model number.

2. Appliance serial number.

3. Part number.

4. Part description.

5. Quantity required.

6. Appliance installation date.

WARNING

Failure to position the parts in
accordance with these diagrams
or failure to use only parts
specifically approved with this
appliance may result in property
damage or personal injury.

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.

Replacement Parts List

Contact an Authorized Lennox Hearth Products dealer to obtain any of these parts. Never use
substitute materials. Use of non-approved parts can result in poor performance and safety
hazards and may void the warranty.

Parts with item numbers are illustrated on the next page.

Item No. Description

2 Control Compartment Access Panel H8435 1

3 Gasket, Control Compartment Access Door H8436 1

4 Gas Train Assembly, Natural Gas H8796 H8795 1

Gas Train Assembly, Propane H8798 H8797 1

5 Burner Assembly H8794 H8432 1

6 Remote Control Handheld Transmitter H8563 1

7 Remote Control Receiver (Wall Switch Assembly) H8564 1

9 DFC Wire Harness Assembly H8601 1

14 Top Baffle H8787 H8583 1

15 Glass Door Assembly (Fireplace Glass Enclosure) H8799 H8431 1

-- Back Panel, Black Porcelain H8800 H8804 1

19 Wrapper, Side

21 Wrapper, Blockoff

23 Nailing Flange, Horizontal Top/Bottom

24 Nailing Flange, Vertical

-- Side Panel RH, Black Porcelain H8801 H8805 1

-- Side Panel LH, Black Porcelain H8802 H8806 2

-- Power Transformer H8006 1

Floor Section, Rear H8790 H8791

--

Floor Section, Front H8792 H8793

--

Battery Holder (for backup batteries) H8803

--

A-1 Ground Wire H7278 1

A-2 DFC Ignition Board H7272 1

A-3

Gas Valve (886), Natural Gas H8562 1

Gas Valve (886), Propane H8594 1

A-4 Pilot Assembly, Natural Gas H7268 1

Pilot Assembly, Propane H7269 1

A-5 Latch, Door Assembly H8433 1

-- Flex Gas Connector Assembly 93L32 1

-- Orifice Connector H7847 1

-- ON/OFF Switch 27K30 1

-- Non-combustible Fiber Board

Catalog No. Qty.

LDV42 LDV54

H8788 H8789

1 pc.

38

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

25-1675 DB REV 004

25-1675 DB REV 004

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

25-1675 DB REV 004

25-1675 DB REV 004

Power

120V

Out

Fan

Aux

Out

REPLACEMENT PARTS

(CONTINUED)

Replacement Parts Illustrations

Note: The only parts offered as replacement parts are those listed on the previous page.

25-1675 DB REV 004

25-1675 DB REV 004

A-1

9

A-2

A-3

25-1675 DB REV 004

A-4

A-5

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

25-1675 DB REV 004

39

LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS

Lennox Hearth Products reserves the right to make changes at any time, without notice, in design,
materials, specications, and prices, and also to discontinue colors, styles, and products.

Consult your local distributor for fireplace code information.

Printed in U.S.A. © 2012 LENNOX HEARTH PRODUCTS

P/N 506011-02 Rev. NC 06/2012

40

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.

1508ElmHillPike,Suite108•Nashville,TN37210