Lennox Hearth LSBV-3628MN User Manual

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.

P/N 850042M REV. D 04/2013

US

Portland

This manual is one of a set of two supporting this product.
Refer to P/N 875035M for Care and Operation Instructions.

This manual is available in French. Order P/N 506223-07.
Ce manuel est disponible en francais. Simplement en faire

la demande numéro de la pièce 506223-07.

OTL Report No. 116-F-45-5

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.

INSTALLATION INSTRUCTIONS

Crestline™ B-Vent Gas Fireplaces
36"/42" LSBV Models

MODELS

Millivolt Models Electronic Models

LSBV-3628MN LSBV-4228MN LSBV-3628EN
LSBV-3628MP LSBV-4228MP LSBV-3628EN-H
LSBV-3628MN-H LSBV-4228MN-H LSBV-4228EN
LSBV-3628MP-H LSBV-4228MP-H LSBV-4228EN-H

Decorative Product: Not for use as a heating appliance.

NOTICE: Fireplace is not to be operated by a thermostat.

LENNOX HEARTH PRODUCTS • CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS

TABLE OF CONTENTS

Packaging .........................................Page 2

Introduction ......................................Page 2

General Information ..........................Page 2

Requirements for the
Commonwealth of Massachusetts

Cold Climate Insulation .....................Page 5

Location ............................................Page 5

Appliance Specications ...................Page 4

Vent Termination Clearances ............. Page 5

Appliance and Vent Clearances .........Page 6

Appliance and Framing Specications .Page 7

Pre-Installation Steps ........................Page 6

Typical Installation Sequence ............Page 8

Step 1. Framing .................................Page 8

Step 2. Routing Gas Line ..................Page 8

Step 3. Position the Appliance ..........Page 9

Step 4. Install The Venting System ...Page 9

Step 5. Field Wiring ...........................Page 10

Step 6. Connecting Gas Line .............Page 11

Step 7. Optional Outside Air Kit .........Page 12

Step 8. Installing Logs .....................Page 12

Step 9. Verifying Appliance Operation .Page 14

Blocked Flue Safety Switch ...............Page 14

Millivolt Appliance Checkout .............Page 14

Electronic Appliance Checkout ..........Page 14

Step 10. Burner Adjustments ............Page 15

Step 11. Attaching Safety-in-

Operation Warnings ............... Page 16

Installation Accessories ....................Page 17

Gas Conversion Kits .................. Page 18

Please read and understand these

instructions before beginning your

installation.

..Page 4

PACKAGING

The assembled vented gas replace is packaged
with the following items:

• One foam packaged log set located in rebox
area.

• One bag of glowing embers (rockwool)
located in the bottom compartment.

• One envelope containing the literature pack­age, which consists of the care and operation
manual, installation instructions, warranty
and warning labels kit. The envelope is located
in the control area.

INTRODUCTION

The millivolt appliances are designed to operate
on either natural or propane gas. A millivolt gas
control valve with piezo ignition system provides
safe, efcient operation.

The electronic appliances are designed to
operate on either natural or propane gas. An
electronic intermittent pilot system provides
safe, efcient operation. External electrical
power is required to operate these units.

These vented gas replaces are designed for
residential applications. They must be installed
with approved type-B, 10" double wall vent pipe
systems routed to the outside atmosphere.

GENERAL INFORMATION

WARNING

B-Vent appliances are not
designed to operate in negatively
pressured environments (pres­sure within the home is less than
pressures outside). Significant
negatively pressured environ­ments caused by weather, home
design, or other devices may
impact the operation of these
appliances. Negative pres­sures may result in poor flame
appearance, sooting, damage to
property and/or severe personal
injury. Do not operate these
appliances in negatively pres­sured environments.

WARNING

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 infor­més 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.

DO NOT ATTEMPT TO ALTER OR MODIFY
THE CONSTRUCTION OF THE APPLIANCE OR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY,

2

CERTIFICATION AND LISTINGS OF THIS UNIT.

LENNOX HEARTH PRODUCTS • CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS

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

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.

WARNING

THIS APPLIANCE MAY ONLY BE FITTED
WITH DOORS CERTIFIED FOR USE
WITH THE APPLIANCE.

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, etcetera. 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 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.

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.

These appliances comply with National Safety
Standards and are tested and listed by OMNI­Test Laboratories (Report No. 116-F-45-5) to
ANSI Z21.50b (in Canada, CSA-2.22b), and
CAN/CGA-2.17-M91 in both USA and Canada,
as vented gas replaces.

Both millivolt and electronic versions of these
appliances may be used in bedrooms (USA
only) when the room is an "unconfined space"
as defined by the National Fuel Gas Code.
Use in bedrooms may not be allowed by your
local building codes. You should obtain prior
approval from the Authority having jurisdiction
prior to installation.

This appliance uses room air for combustion.
It is imperative that provisions for adequate
combustion and ventilation air be made. This
appliance is NOT designed to and will not
operate in a negative pressure.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Misc. Codes / Standards -

The 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/CGA-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.

Provide adequate clearances around air open­ings and adequate accessibility clearance for
service and proper operation. Never obstruct the
front or back viewing surfaces of the appliance.

These appliances are designed to operate on
natural or propane gas only. The use of other
fuels or combination of fuels will degrade
the performance of this system and may be
dangerous.

These replaces are designed as decorative
appliances and are not intended for use as area
heaters. They must Not be equipped with wall
thermostats or remote controls with thermostat
functions.

These appliances must not be connected to a
chimney or ue serving a separate solid fuel
burning appliance.

The appliance area be kept clear and free from
combustible materials, gasoline and other
flammable vapors and liquids.

These appliances are equipped with an inte­gral combustion air door and actuator arm.
Combustion air kits are optional and must be
installed before removing the securing screw
allowing the movement of the combustion air
actuator arm (see Step 7 on Page 12).

Millivolt Models - The millivolt appliances are

manually controlled and feature a spark igniter
(piezo) that allows the appliance's pilot gas to be
lit without the use of matches or batteries. This
system provides continued service in the event
of a power outage. Input of for these models
are shown in Table 1.

Electronic Models - Electronic models have a
xed rate gas valve. Input of electronic models
is shown in Table 1.

Input (BTU) Gas Valves (all models)

All Models Fuel Type Input Rate (BTU / HR)

Millivolt Natural 50,000
Millivolt Propane 45,000

Electronic Natural 50,000
Electronic Propane 45,000

Table 1

3

EA

TPTH TP TH

P

I

L

O

T

P

I

L

O

T

O

N

it

O

F

F

LENNOX HEARTH PRODUCTS • CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS

Gas Pressure - All Models

Tables 2 and 3 show the appliances' inlet and
manifold gas pressure requirements:

Inlet Gas Supply Pressure

(all models)

Fuel # Minimum Maximum

Natural Gas

Propane

5.0" WC

(1.24 kPa)

11.0" WC

(2.74 kPa)

10.5" WC

(2.62 kPa)

13.0" WC

(3.24 kPa)

Table 2

Manifold Gas Supply Pressure

(all models)

Fuel # Low High

Natural

Gas

Propane

(Lo) 2.2" WC

(0.55 kPa)

(Lo) 6.3" WC

(1.57 kPa)

(Hi) 3.5" WC

(0.87 kPa)

(Hi) 10.0" WC

(2.49 kPa)

Table 3

Test gauge connections are provided on the front
of the millivolt gas control valves (identied OUT
for the manifold side and IN for inlet pressure side.

The appliance and its appliance main gas
valve must be disconnected from the gas
supply piping system during any pressure
testing of that system at test pressures in
excess of 1/2 psi (3.5 kPa).

The appliance must be isolated from the
gas supply piping system by closing its
equipment shutoff valve during any pressure
testing of the gas supply piping system at
test pressures equal to or less than 1/2 psi
(3.5 kPa).

Orifice Sizes - Sea Level to High Altitude
(All Models)

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 "*" in Table 4). For
elevations above 4500 feet, contact your gas
supplier or qualied service technician.

Deration - 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.

• By changing the burner orice to a smaller

size as regulated by the local authorities having
jurisdiction and by the (USA) National Fuel Gas
Code NFPA 54/ANSI Z223.1 - latest edition or,
in Canada, the CAN/CGA-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/CGA-B149.1 - latest edition.

Flame breadth, height and width will diminish
4% for every 1,000 feet of altitude.

In Canada - CAN/CGA-2.17-M91 (R2009) (high
altitude): THE CONVERSION SHALL BE CAR­RIED OUT BY A MANUFACTURER’S AUTHO­RIZED REPRESENTATIVE, IN ACCORDANCE
WITH THE REQUIREMENTS OF THE MANU­FACTURER, PROVINCIAL OR TERRITORIAL
AUTHORITIES HAVING JURISDICTION AND
IN ACCORDANCE WITH THE REQUIREMENTS
OF THE CAN/CGA-B149.1 OR CAN/CGA-B149.2
INSTALLATION CODES.

Burner Orifice Sizes (all models)

Elevation

Feet (meters)

0-4500

(0-1372)

Table 4

• Part /Cat. Number

Natural

Gas

drill size (inches)

#26 (0.147")

H5805 •

* Standard size installed at factory

*

Propane

Gas

drill size (inches)

#45 (0.082")

39L66 •

*

Gas Valve Diagrams

See Figure 1 for Millivolt models and Figure 2
For Electronic Models.

Manifold Pressure Tap

Piezo
Igniter

Inlet Pressure Tap

Main Gas Control Knob

OFF/PILOT/ON

Figure 1 - - SIT Millivolt Gas Valve

Manifold Gauge Port

Pilot Adjustment Screw

Inlet Gauge Port

Figure 2 - SIT Electronic Gas Valve

REQUIREMENTS FOR THE COMMON­WEALTH OF MASSACHUSETTS

These replaces are approved for installation in
the US state of Massachusetts if the following
additional requirements are met:

• Installation and repair must be done by a
plumber or gas tter licensed in the Com­monwealth of Massachusetts.

• The exible gas line connector used shall not
exceed 36 inches (92 centimeters) in length.

• The individual manual shut-off must be a
T-handle type valve.

4

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

LENNOX HEARTH PRODUCTS • CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS

COLD CLIMATE INSULATION

For cold climate installations, seal all cracks
around your appliance with noncombustible
material and wherever cold air could enter
the room. It is especially important to insulate
outside chase cavity between studs and under
oor on which appliance rests, if oor is above
ground level. Gas line holes and other open­ings should be caulked or stuffed with unfaced
berglass insulation.

If the replace is being installed on a cement
slab in cold climates, a sheet of plywood or
other raised platform can be placed underneath
to prevent cold transfer to the replace and into
the room. It also helps to sheetrock inside
surfaces and tape for maximum air tightness
and caulk restops.

MANUFACTURED HOUSING

B-Vent Fireplaces are not approved for use in
OEM or aftermarket manufactured housing built
to HUD standards.

LOCATION

In selecting the location, the aesthetic and
functional use of the appliance are primary
concerns. However, vent system routing to
the exterior and access to the fuel supply are
also important.

Typical Locations

Figure 3

VENT TERMINATION CLEARANCES

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, the current National
Fuel Gas Code (ANSI-Z223.1) in the USA or
the current standards of CAN/CGA-B149.1
in Canada.

Vertical Vent Termination Clearances

Gas Vent Rule – Gas vent caps are not permitted

within 8 ft. (2.4 m) of a vertical wall or similar
obstruction.

Gas vent caps that are located 8 ft. or more
from a portion of a building which extends
at an angle greater than 45° upward from the
horizontal may terminate in accordance with
Figure 4 , provided that in no case shall any
discharge opening on the cap be less than 2
ft. (.6 m) horizontally from the roof surface
(National Fuel Gas Code ANSI Z223.1 (NFPA

54) (CAN/CGA B149.1).

Multiple Terminations

These appliances may vent adjacent to and at
the same level with any other gas appliances
(including direct-vent appliances) provided that
there is at least 2 ft. (0.6m) between the proximal
edges of the vent caps. These appliances may
be vented adjacent to a chimney vent servicing
a solid fuel replace provided the B-vent cap
is at least 2 ft. (0.6m) away from the nearest
point of the chimney opening.

Multiple Terminations

2 ft.

(0.6m)

Minimum

Figure 5

Due to high temperatures, the appliance
should be located out of traffic and away from
furniture and draperies (Figure 3).

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 (Figure 3).

The location should also be free of electrical,
plumbing or other heating/air conditioning
ducting.

Be aware that this is a heat producing ap­pliance. Objects placed above the unit are
exposed to elevated temperatures.

Do not insulate the space between the appli­ance and the area above it.

The appliance must be mounted on a fully sup­ported base extending the full width and depth of
the unit. The appliance may be located on or near
conventional construction materials. However,
if installed on combustible materials, such as
carpeting, vinyl tile or other combustible material
other than wood ooring, the appliance shall be
installed on a metal or wood panel extending the
full width and depth of the appliance.

Vertical Vent Termination Clearances

X

12

Roof Pitch is X/12

Minimum Height from Roof
to Lowest Discharge Opening

The vent / air intake termination clearances
above the high side of an angled roof is as
shown in the following chart:

Figure 4

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Termination Heights For Vents

Above Flat Or Sloped Roofs
Ref. NFPA 54 / ANSI Z223.1

Roof Pitch * Feet * Meters

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

5

LENNOX HEARTH PRODUCTS • CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS

Fireplace Opening

Typical Installation

10"

Min.

12"

Min.

18"

12"

Max.

Combustible
Mantel and Trim
(See Note)

3 Sheet Metal Screws
#10 x 3/4" Max. Flat Head

5"

Top Of Fireplace

Non
Combustible
Material

Sheet Metal
Spacer

Finished Wall

Header

Note: Mantel At Minimum Height Should Be Affixed to Framing Hinge Posts At Right
And Left Of The Fireplace. Do Not Use Molly Bolts In Front Of The Fireplace.

18 5/8"

Non-Combustible Material

1-3/8"

11-3/8"

Min.

CLEARANCES

Minimum clearance to combustibles for the
appliance is as follows: sides and back - 3/8"
(9.52 mm), oor - 0" (0 mm), adjacent wall - 0"
(0 mm), ceiling - 37-1/2" (953 mm). Service
Clearances, Front - 3' (0.9 m).

NOTE: 3" (75 mm) minimum clearance is
required above any inclined vent component.
1" minimum clearance is required to the sides
of vertical vent.

Hearth Extension - A hearth extension is not

required with this appliance. If a hearth exten­sion is used, do not block the lower control
compartment door. Any hearth extension used
is for appearance only and does not have to
conform to standard hearth extension instal­lation requirements.

Right Side of Fireplace

Wall Finishes / Surrounds / Mantels

Note: Combustible wall finish materials and/
or surround materials must not be allowed to
encroach the area defined by the appliance front
face (black sheet metal). Never allow combus­tible materials to be positioned in front of or
overlapping the appliance front face.

Non-combustible materials, such as surrounds
and other appliance trim, may be installed on
the appliance face with these exceptions: they
must not cover any portion of the removable
glass door (if used) or control compartment.

Vertical installation clearances to combustible
mantels vary according to the depth of the
mantel. See Figure 6. Mantels constructed of
non-combustible materials may be installed
at any height above the appliance opening;
however, do not allow anything to hang below
the replace hood.

Minimum clearance requirements include any
projections such as shelves, window sills,
mantels, etc. above the appliance.

NOTE: We recommend the use of high tem­perature paint (rated 175° F or higher) on the
underside of the mantel.

To install the appliance facing ush with the
nished wall, position framework to accommo­date the thickness of the nished wall (Figure

6). Both Figures 6 and 7 show a combustible
mantel shelf projecting a maximum of 12" (305
mm) from the wall, and which must be installed
a minimum distance of 12" (305mm) from the
top of the rebox opening. No other mantel
length/height combinations are allowable for
this replace.

Figure 6

Figure 7

Max. Projection 12" (305 mm)

Combustible
Mantel

0" Clearance
to Combustible
Side Wall

60"

(1524 mm)

Min. to
Ceiling

12" Min.
(305 mm)

6

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.