Lennox Hearth LMBV-42R 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 850041M REV. C 04/2013

This manual is one of a set of two supporting this product. Refer to P/N 875034M for Care and Operation Instructions.

This manual is available in French. Order P/N 506223-25. Ce manuel est disponible en francais. Simplement en faire la demande numéro de la pièce 506223-25.

WH Report No. 3106807

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

B-Vent Gas Fireplaces 42" LMBV Models

MODELS

Millivolt Models

LMBV-42RMN LMBV-42RMP

Decorative Product: Not for use as a heating appliance.

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

Electronic Models

LMBV-42REN

LENNOX HEARTH PRODUCTS • MERIT® SERIES B-VENT GAS FIREPLACES • 42" LMBV MODELS • INSTALLATION INSTRUCTIONS

TABLE OF CONTENTS

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

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

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

Requirements for the Commonwealth of Massachusetts ... Page 4

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

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

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

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

Appliance and Framing Specications .. Page 7

Fireplace Installation:

Pre-Installation Steps ..................... Page 8

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

Step 1. Construct Appliance

Framing ...................... Page 8

Step 2. Route Gas Line ................. Page 8

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

Step 4. Install Vent System and Exterior Termination ...Page 9 Step 5. Field Wiring; Install (Optional)

Wall Switch ................Page 10

Step 6. Connect to Gas Line ......... Page 11

Step 7. Install (Optional) Outside

Air Kit ......................... Page 12

Step 8. Install Logs and

Glowing Embers ......... Page 12

Appliance Operation:

Step 9. Check Appliance

Operation ....................Page 14

Manual Limit Switch ........ Page 14

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

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

Step 10. Adjust Burner ...................Page 15

Step 11. Attach "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.

PACKAGING

The assembled vented gas replace is packaged with: 1 - One log set and bag of glowing embers

is packaged in a carton located within the rebox.

2 - One envelope containing the literature

package, which consists of the care and operation manual, installation instructions, warranty, 8 nailing anges; envelope is located in the control area.

3 - One grate, located in rebox.

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.

Use Only These Approved Vent Components These vented gas replaces are designed for residential applications. They must be installed with approved Type-B, 6" diameter double wall vent pipe systems and a listed vent termination 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, CERTIFICATION AND LISTINGS OF THIS UNIT.

LENNOX HEARTH PRODUCTS • MERIT® SERIES B-VENT GAS FIREPLACES • 42" LMBV 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.

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.

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 poussière. 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 Warnock Hersey (Report No. 3106807) to ANSI Z21.50, latest edition (in Canada, CSA 2.22, latest edition), 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.

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 electrically 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 openings 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 ammable 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).

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. The BTU Input for these appliances is 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 30,000 Millivolt Propane 30,000

Electronic Natural 30,000 Electronic Propane 30,000

Table 1

LENNOX HEARTH PRODUCTS • MERIT® SERIES B-VENT GAS FIREPLACES • 42" LMBV MODELS • INSTALLATION INSTRUCTIONS

TPTH TP TH

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

4.5" WC

(1.12 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 valve (identied E for the inlet and A for the manifold side). A 1/8" NPT test gage connection is provided at the inlet and manifold side of the electronic gas control valve.

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)

#37 (0.104")

H5830 •

* Standard size installed at factory

1.65mm

Propane

Gas

drill size (inches)

(0.065")

H5831 •

Gas Valve Diagrams

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

Manifold Pressure Tap

Pilot Adjustment

Screw

Inlet Pressure Tap

Piezo Igniter

Main Gas Control Knob

OFF/PILOT/ON

Figure 1 - SIT Millivolt Gas Valve

OFF

ON/OFF Switch

PSI

Inlet Pressure Port

Electronic Gas Control Valve

Manifold Pressure Port

CONTROL

IGNITER

Figure 2 - Honeywell 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:

• Install this appliance in accordance with Massachusetts Rules and Regulations 248 C.M.R.

• 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.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

LENNOX HEARTH PRODUCTS • MERIT® SERIES B-VENT GAS FIREPLACES • 42" LMBV 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

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 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

(CAN/CGA B149.1).

54)

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

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

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

Gas Vent Rule - Gas vent caps are not permitted within 8 ft. (2.4 m) of a vertical wall or similar obstruction.

Vertical Vent Termination Clearances

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

Figure 5

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

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

LENNOX HEARTH PRODUCTS • MERIT® SERIES B-VENT GAS FIREPLACES • 42" LMBV MODELS • INSTALLATION INSTRUCTIONS

Fireplace Opening

Spacer

Finished Wall

Header

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1011

Combustible Mantel Clearances

Inches

Min. Height of Mantel

Above Fireplace

Opening

Max.Length of Mantels

Three mantels are shown (dark gray elongated rectangles)one, 1-1/2 in. long at a min. of 8-3/8 in. above the fireplace opening; the second, 8 in. long at a min. of 12 in. above the fireplace opening;

the third, 12 in. long at a min. of 14-1/4 in. above the fireplace opening;

for any mantels between these three in length, they must be located

within the lighter gray shaded area.

8-3/8

1-1/2

14-1/4

64"

(1626 mm)

Min. to Ceiling

14-1/2" Min. (368 mm)

0" (0 mm) Clearance to Combustible Side Wall

Max. Projection 12" (305 mm)

Combustible Mantel

CLEARANCES

Minimum clearance to combustibles for the appliance is as follows: sides and back - 0" (0 mm), oor - 0" (0 mm), adjacent wall - 0" (0 mm), ceiling - 64" (1625 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.

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 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 panel 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.

Wall Details and Combustible Mantels -

Complete nished interior wall. To install the appliance facing ush with the nished wall, position framework to accommodate the thickness of the nished wall (Figure 6). This Figure also indicates vertical installation clearances to combustible mantels. Figure 7 also shows an example of a combustible mantel shelf projecting a maximum of 12" (305 mm) from the wall, and which must be installed a minimum distance of 14-1/2" (368 mm) from the top of the rebox opening.

Figure 6

Figure 7

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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