Lennox MPB35ST-NM-B Installation instructions

03

/27

/20

13

INSTALLATION INSTRUC TIONS

MPB B-Vent See-Through

Gas Fireplaces

MODELS

MILLIVOLT:

MPB35ST-NM-B

MPB35ST-PM-B

ELECTRONIC:

MPB35ST-NE-B

P/N 850023M REV. E 04/2013

This manual is one of a set of two supporting this product.

Refer to P/N 875024M for Care and Operation Instructions.

Ce manuel est disponible en francais, simplement en faire la demande. Numéro de la pièce 850023CF.

US

Portland

OTL Report No. 116-F-27-5

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.

Decorative Product: Not for use as a heating appliance.

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

WARNING /AVERTISSEMENT/AVISO

HOT GLASS WILL

CAUSE BURNS.

UNE SURFACE VITRÉE CHAUDE

PEUT CAUSER DES BRÛLURES.

EL VIDRIO CALIENTE

CAUSARÁ QUEMADURAS.

DO NOT TOUCH GLASS

UNTIL COOLED

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

LAISSER REFROIDIR LA SURFACE

VITRÉE AVANT D'Y TOUCHER.

NE PERMETTEZ JAMAIS À UN ENFANT

DE TOUCHER LA SURFACE VITRÉE.

USTED DEBE NUNCA

TOCAR EL VIDRIO CALIENTE.

LOS NIÑOS DEBEN NUNCA

TOCAR EL VIDRIO.

WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury, or death.

- 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 t ry 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.

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.

- 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 interrupteu r. 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.

2

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 6

Appliance and Vent Clearances ........Page 7

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

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

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

Fireplace Specifications .....................Page 9

Step 2. Routing Gas Line ................Page 10

Step 3. Install the Venting System ..Page 11

Step 4. Field Wiring .........................Page 12

Step 5. Connecting Gas Line ...........Page 13

Step 6. Outside Air Kit Installation ..Page 14

Step 7. Verify Unit Operation ...........Page 15

Step 8. Install Grate, Vermiculite

Embers and Logs ...............Page 15

Step 9. Installing/Removing Glass

Enclosure Panels ................Page 18

Step 10. Burner Adjustment ..............Page 19

Step 11. Vent Operation Test and

Safety Limit Switch Operation Page 20

Step 12. Hood Installation .................Page 20

Finishing Requirements ....................Page 20

Step 13. Attaching Safety-in-

Operation Warnings .....................

Page 21

Gas Conversion Kits .........................

Page 22

Please read and understand these instructions before beginning your installation.

PACKAGING

The assembled vented gas fireplace is packaged with:

1 - One log set, with one plastic bag of vermiculite, is packaged in a carton located within the firebox.

2 - One plastic bag of glowing embers located in the control compartment.

3 - One envelope containing the literature package, which consists of the care and operation manual, installation instructions, safety in operation warning labels, warranty,

8 nailing flanges; envelope is located in the control area.

4 - Two hoods taped to the top of the fireplace.

5 - One Grate, located in firebox.

6 - One Electrical Outlet Kit which consists of a junction box, 2 screws, an receptacle outlet, an OFF/ON rocker switch and a snap bushing. Note: All the components in the electrical kit will Not be used by every model.

7. Carton Support (must be removed from the control area prior to first burning).

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.

INTRODUCTION

The Millivolt appliances have a millivolt gas control valve with piezo ignition system.

The Electronic appliances have an electronic intermittent pilot ignition system. External electrical power is required to operate these units.

Use Only These Approved Vent Components

- These vented gas fireplaces are designed for residential applications. They must be installed with approved Type-B, 5" 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.

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, CER-

TIFICATION AND LISTINGS OF THIS UNIT.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualified installer, service agency or the gas supplier.

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 OMNI-Test Laboratories, Inc. (Report No.

116-F-27-5) to ANSI Z21.50 (in Canada, CSA

2.22), and CAN/CGA-2.17-M91 in both USA and

Canada, as vented gas fireplaces.

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.

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 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 踀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 flue 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.

Outside Combustion Air Hook Up -

(All manufactured home installations require the use of an Outside Combustion Air Hook-

Up Kit)

These appliances are equipped with an integral combustion air door and actuator arm. Combustion air kits are optional. Install as shown in Step 6 on Page 14.

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.

Millivolt models come standard with a manuallymodulated gas valve; flame appearance and heat output can be controlled at the gas valve. Input of for these models are shown in Table 1.

Input (BTU) Manually-Modulated Gas

Valves (millivolt models)

Model

Natural Gas

BTU/HR

Propane Gas

BTU/HR

MPB35ST-B 23,000 to 30,000 22,000 to 28,000

Table 1

Electronic Models - Electronic models have a fixed rate gas valve. Input of electronic models is shown in Table 2.

Input (BTU) Fixed-Rate Gas Valves

(electronic models)

Model

MPB35ST-B

Table 2

Natural Gas

BTU/HR

30,000

Propane Gas

BTU/HR

28,000

3

4

Gas Pressure - All Models

Tables 3 and 4 show the units' 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 3

Fuel #

Manifold Gas Supply Pressure

(all models)

Low

(millivolt only)

High

Natural

Gas

(Lo) 2.2" WC

(0.55 kPa)

(Hi) 3.5" WC

(0.87 kPa)

(Hi) 10.0" WC

(2.49 kPa)

Table 4

Test gauge connections are provided on the front of the millivolt gas control valve, identified IN for the inlet and OUT for the manifold side. A 1/8" NPT Test gauge connection is provided at the inlet and outlet side of the electronic gas control valve.

Propane tanks are at pressures that will cause damage to valve components. Verify that the tanks have step down regulators to reduce the pressure to safe levels.

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 orifice sizes (marked with an "*" in Table

5 ). For elevations above 4500 feet, contact your gas supplier or qualified 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.

• Changing the burner orifice 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.

NOTE: Flame appearance will diminish 4% per thousand feet.

In Canada - CAN/CGA-2.17-M91 (R2009) (high altitude): THE CONVERSION SHALL BE CAR-

RIED OUT BY A MANUFACTURER’S AUTHO-

RIZED REPRESENTATIVE, IN ACCORDANCE

WITH THE REQUIREMENTS OF THE MANU-

FACTURER, 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.

Gas Valve Diagrams

See Figure 1 for Millivolt models and Figure 2

For Electronic Models.

HI/LO Variable

Flame Height

Adjustment

Inlet Pressure Tap

Manifold Pressure Tap

OUT IN

HI

LO W

OFF

PIL

ON

T

PILO

Pilot Adjustment

Screw

Main Gas

Control Knob

OFF/PILOT/ON

Figure 1 - SIT Millivolt Gas Valve

Manifold Pressure

Port

Figure

ON / OFF Switch

Inlet

Pressure

Port

Electronic Gas

Control Valve

2 - Honeywell Electronic Gas Valve

Burner Orifice Sizes

Elevation 0-4500 feet ( 0-1372 meters)

Model

Series

Nat.Gas

drill size (inches)

Propane drill size (inches)

MPB35ST-B

Table 5

#37 (.104") *

24M10 •

1.55 mm (.061")*

42M79 •

* Standard size installed at factory

• Part /Cat. Number

Burner Orifice Sizes (all models)

Elevation

Feet (meters)

Natural

Gas drill size (inches)

Propane

Gas drill size (inches)

0 - 4500

(0-1372)

#37 *

(.104")

1.55 mm *

(.061")


Table 8

REQUIREMENTS FOR THE COMMON-

WEALTH OF MASSACHUSETTS

Installation of these fireplaces 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. Sec. 5.08 2(a) through 2(e).

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

• The flexible 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.

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 floor on which appliance rests, if floor is above ground level. Gas line holes and other openings should be caulked or stuffed with unfaced fiberglass insulation.

If the fireplace 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 fireplace and into the room. It also helps to sheetrock inside surfaces and tape for maximum air tightness and caulk firestops.

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.

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 flooring, the appliance shall be installed on a metal or wood panel extending the full width and depth of the appliance.

Locations

* One side

(end) flush with a wall

** One face flush with a wall

Typical Installations

Vertical

Venting

Offset

Venting

NOTE: When the 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.

Figure 3 - Typical Installations


5

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.

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 fireplace provided the B-vent cap is at least 2 ft. (0.6m) away from the nearest point of the chimney opening.

X

12

Roof Pitch is X/12

Minimum Height from Roof to

Lowest Discharge Opening

1“ (25 mm)

Minimum

Figure 4 - Vertical Vent Termination Clearances

Termination Heights For Vents

Above Flat Or Sloped Roofs

Ref. NFPA 54 / ANSI Z223.1, 7.6

Roof Pitch Feet Meters

Flat to 6/12

6/12 to 7/12

7/12 to 8/12

8/12 to 9/12

9/12 to 10/12

10/12 to 11/12

11/12 to 12/12

12/12 to 14/12

14/12 to 16/12

16/12 to 18/12

18/12 to 20/12

20/12 to 21/12

3.25

4.0

5.0

6.0

1.0

1.25

1.5

2.0

2.5

7.0

7.5

8.0

0.99

1.22

1.52

1.83

0.3

0.38

0.46

0.61

0.76

2.13

2.29

2.44

Multiple Terminations

2 ft.

(0.6m)

Minimum

6


MINIMUM CLEARANCES TO COMBUSTIBLES

Appliance And Vent Clearances

Maintain clearances from appliance to combustible materials as detailed in

Table 6 with the following exception: When the 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.

In addition, when the unit is installed in the middle of a room, the side walls surrounding the unit must not extend beyond the front or rear edge of the unit. See Figure 3 .

Sides

MINIMUM CLEARANCES

Inches (millimeters)

Top Spacers

1/2 (13)

0 (0)

0 (0) Floor

Bottom of Appliance

To Ceiling

72 (1829)

Vent 1 (25.4)

SERVICE CLEARANCES Feet (meters)

Front and Back Faces 3 ft. (0.9 m)

Table 6

*NOTE: 3" (75 mm) above any inclined vent component.

**NOTE: See Page 8 , Step 1 and Figure 8 for clearance requirements to the nailing flange located at each side of the unit and any screw heads adjacent to it.

Hearth Extension - A hearth extension is not required with this appliance.

If a hearth extension is used, do not block the control compartment access panel. 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 front face. See Figure 37 .

Non-combustible materials, such as surrounds and other appliance trim, may be installed on the appliance front and back faces with the following exception: The material must NOT cover any portion of the glass, louvers or top radiant panel (optional kit).

Vertical installation clearances to combustible mantels vary according to the depth of the mantel. (See Figure 5 ). Mantels constructed of noncombustible materials may be installed at any height above the appliance opening; however, do not allow anything to hang below the hood.

These instructions should be used as a guideline and do not supersede local codes in any way.

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.

Mantel Depth

13 (330)

11 (279)

9 (289)

7 (178)

5 (127)

3 (76)

12

(305)

10

(254)

8

(203)

6

(152)

4

(102)

2

(51)

NOTE: The side walls of mantels may protrude beyond the front face of the fireplace a maximum of 5" (127 mm) at 0" clearance to the sides of the fireplace.

inches (millimeters)

Top Of Appliance

Figure 5 - Minimum Mantel Clearances

Combustible materials may project beyond one side of the fireplace opening as long as they are kept within the shaded areas illustrated here.

At 5" minimum side wall clearance, the wall (shown in dark gray) can be any length.

45 o

Top View of

Fireplace

1 (25)

2 (51)

3 (76)

4 (102)

5 (127)

6 (152)

7 (178)

8 (203)

9 (229)

10 (250)

Inches (millimeters)

5

(127)

4

(102)

3

(76)

2

(51)

1

(25)

Figure 6 - Minimum Distance to Unprotected Side Wall


7

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.

PRE-INSTALLATION STEPS

The appliance is shipped with all gas controls and components installed and pre-wired.

1. Remove the shipping carton. Remove the shipping pad, exposing the front glass door.

2. Open the two latches (located under the firebox floor) securing the glass door. Remove the door by tilting it outward at the bottom and lifting it up. Set the door aside protecting it from inadvertent damage. See Removing

Glass Panels on Page 18 .

Top Louver Panel

TYPICAL INSTALLATION SEQUENCE

The typical sequence of installation is outlined below. However, each installation is unique and may result in variations to the steps described.

See the page number references in the following steps for detailed procedures.

Step 1 . ( Page 8 ) - Construct the appliance framing. Position the appliance within the framing and secure with nailing flanges.

Step 2.

( Page 10) Route gas supply line to appliance location.

Step 3.

( Page 11 ) Install the vent system and exterior termination.

Step 4 . ( Page 12 ) Field Wiring a. Millivolt Appliances – Install the

OFF/ON burner control switch.

b. Electronic Appliances – Connect 120

VAC electrical power to the appliance receptacle.

Step 5.

( Page 13 ) Make connection to gas supply.

Step 6.

( Page 14 ) Outside Air Kit Installation.

Step 7 . ( Page 15 ) Verify appliance operation.

Step 8 . ( Page 15 ) Install grate, vermiculite, embers and logs.

Step 9 . ( Page 18 ) Installation/Removal of glass enclosure panels.

Step 10 ( Page 19 ) Adjust burner primary air shutter to achieve proper flame appearance.

Step 11 . ( Page 20 ) Vent operation test and (safety limit) switch operation.

Step 12.

( Page 20 ) Install the decorative trims and hoods.

Step 13.

( Page 21 ) Attach Safety in Operation

Warnings.

Step 1. FRAMING

Frame these appliances as illustrated in Figure

9 . All framing details must allow for a minimum clearance to combustible framing members as shown in Table 6 on Page 7 .

If the appliance is to be elevated above floor level, a solid continuous platform must be constructed below the appliance.

Headers may be in direct contact with the appliance top spacers but must not be supported by them or notched to fit around them.

All construction above the appliance must be self-supporting, DO NOT use the appliance for structural support.

Side Nailing Flanges

The fireplace should be secured to the side framing members using the unit's nailing flanges - one top and bottom on each side of the fireplace front. See Figure 8 using the existing screws. Position the fireplace within the framing. When required, the tabs may be bent 90 degrees by hand or with the assistance of a hammer. Use wood screws to secure the nailing flanges to the framing. See Table 6 on

Page 7 for clearances of framing members to cabinet parts. The nailing flange itself can directly contact framing.

Floor Nailing Tabs

Secure the fireplace to the floor as shown in

Figure 8.

Remove the screws and use them when installing the nailing flanges

Control Compartment Access Panel

Figure 7 - Unit Parts Identification

8

* NOTE: INSTALLATION DIAGRAMS AND

INSTRUCTIONS SHOW THE FRONT OF

THE APPLIANCE AS THE SIDE WHICH HAS

VALVE ACCESS, EXCEPT WHERE NOTED.


Nailing

Flanges

Turn nailing tabs down and secure to the floor with 8d nails or other appropriate fasteners on both sides of appliance.

Figure 8

FIREPLACE SPECIFICATIONS - MPB35ST

SPECIFICATIONS

Natural Gas BTU Input 30,000

Propane Gas BTU Input

B-Vent Size

28,000

5" (127 mm)

NOTES

Diagrams, illustrations and photographs are not to scale. Consult installation instructions. Product designs, materials, dimensions, specifications, colors, and prices are subject to change or discontinuance without notice.

PRODUCT REFERENCE INFORMATION

Cat.

No.

Model Ship

Weight

Ship.

Volume

H7808 MPB35ST-NM-B

H7809 MPB35ST-PM-B

200 lbs 46W x 26D x

43H (30 cu.ft.

200 lbs 46W x 26D x

43H (30 cu.ft.

H7810 MPB35ST-NE-B 200 lbs 46W x 26D x

43H (30 cu.ft.

Framing Specifications

Notes:

• Inches (millimeters)

• Minimum Framing Stud Size is 2 x 4

• See side views of fireplace below for

gas line inlet location options.

35-1/4

(895) **20-3/4

(527) Gas line center is

3-1/8" (79 mm) up from floor.

5-5/8" (143)

Gas line

** This dimension based on 5/8" drywall. For 1/2" drywall use 21"

(533 mm). The finished dimension should be 22" (558 mm).

Front - V

*36-1/2

(927)

* This dimension does not include the addition of drywall to the inside of framing. Adjust accordingly for your installation.

FINISH WALL BRACKET

(Front and back edge of unit top)

TOP VIEW

17-3/4 (451) Fireplace Specifications

11 (279)

FRAMING SPACER

(Top and Both Sides)

22

(559)

20-7/8 (529)

FRAMING

Figure 9

Control Switch

Wires

Knock-Out

Gas

Inlet

3-1/8 (79)

6-1/4

(159)

LEFT SIDE VIEW

3 (76)

35-1/8

(892)

32-5/8

(827)

19

(483)

5 (127) DIA. B-VENT

36-3/8 (923)

35-3/8

(899)

29 1/2

(749)

FRONT VIEW

3 (76)

12

(305)

Control

Compartment

Door

Control Switch

Wires

Knock-Out

Gas

Inlet

Outside Air

Shutter

3-1/8 (79)

6-1/4

(159)

RIGHT SIDE VIEW

6

(152)

Junction Box

Knock-Out (2 places each side)


9

Step 2. ROUTING GAS LINE

Route a 1/2" (13 mm) gas line along the inside of the right side framing as shown in Figure 10 .

Gas lines must be routed, constructed and made of materials that are in strict accordance with local codes and regulations. All appliances are factory-equipped with a flexible gas line connector and 1/2" shutoff valve. (See Step

5 on Page 13 ).

Also see

Figure 9

Never use galvanized or plastic pipe. Refer to

Table 7 for proper sizing of the gas supply line, if black iron pipe is being used. Gas lines must be routed, constructed and made of materials that are in strict accordance with local codes and regulations. We recommend that a qualified individual such as a plumber or gas fitter be hired to correctly size and route the gas supply line to the appliance. Installing a gas supply line from the fuel supply to the appliance involves numerous considerations of materials, protection, sizing, locations, controls, pressure, sediment, and more. Certainly no one unfamiliar and unqualified should attempt sizing or installing gas piping.

6-1/4"

(159 mm)

Figure 10 - Route Gas Line

Proper Sizing of Gas Line

3-1/8"

(79 mm)

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/CGA-B149.1

- latest edition (Canada).

Schedule 40 (black iron) Pipe

Inside Diameter (Inches)

Schedule 40 Pipe

Length (feet)

Natural

Gas

Propane

Gas

0-10

10-40

40-100

100-150

150-200

Table 7

1/2

1/2

1/2

3/4

3/4

3/8

1/2

1/2

1/2

1/2

Notes:

• All appliances are factory-equipped with a flexible gas line connector and 1/2" shutoff valve (see Figure 19 on Page 14 ).

• See Massachusetts Requirements on Page 4 for additional requirements for installations in the state of Massachusetts in the USA.

• The gas supply line should Not be connected to the appliance until Step 5 ( Page 13 ).

• A pipe joint compound rated for gas should be used on the threaded joints. Ensure propane resistant compounds are used in propane applications.

Be very careful that the pipe compound does not get inside the pipe.

• It is recommended to install a sediment trap in the supply line as close as possible to the appliance (see Figure 19 , Page 14 ). Appliances using propane should have a sediment trap at the base of the tank.

• Check with local building official for local code requirements (i.e. are below grade penetrations of the gas line allowed?, etc).

IMPORTANT: If propane is used, be aware that if tank size is too small (i.e. under 100-lbs, if this is the only gas appliance in the dwelling.

Ref. NPFA 58), there may be loss of pressure, resulting in insufficient fuel delivery (which can result in sooting, severe delayed ignition or other malfunctions). Any damage resulting from an improper installation, such as this, is not covered under the limited warranty.

10


Step 3. INSTALL THE VENT SYSTEM &

EXTERIOR TERMINATION:

General Information

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.

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

Dégagement conforme aux codes d'installation locaux et aux exigences du foumisseunde gaz.

Use only approved venting components.

See Approved Vent Components on

Page 2.

These fireplaces must be vented directly to the outside.

Slip the first 5" (127 mm) section of B-Vent over the fireplace flue outlet and secure with four sheetmetal screws (# 8 or larger), and install the remainder of the B-Vent to the outside.

Minimum overall height of the vent system and appliance must be 10' (2.54 m) vertical - no offset (see Figure 12) ; or 12' (3.7 m) when an offset up to 60 degrees from the vertical is used - this offset may start at the fireplace flue collar (see Figure 12). The maximum overall height of the vent system and appliance should not exceed 40 feet.

Install the B-vent system in accordance with the vent manufacturer's instructions.

Vertical

Installations

10 Feet (3 Meters)

Minimum

Figure 12

1" (25 mm)

Minimum

Firestop

CAUTION

This appliance cannot be vented horizontally.

The maximum overall height of the vent system and appliance should not exceed 40 feet.

Offset

Installations

60 Degrees

Maximum

12 Feet (3.7 Meters)

Minimum

NOTE: Refer to the vent manufacturers installation instructions for variations of venting techniques. If common venting of several units is contemplated, it should be discussed with an architect and the local Building Department.

Do not place insulation materials within 1" of the gas vent system.

Use only approved venting components.

See Approved Vent Components on Page 2.

Securing

Screws

Flue Outlet

Collar

Figure 11

11


12

Step 4. FIELD WIRING

CAUTION

Ground supply lead must be connected to the wire attached to the green ground screw located on the outlet box. See Figure 18 . 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).

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 peuvent entraîner un fonctionnement inadéquat et dangereux.

Verify proper operation after servicing.

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

Refer to Section A for millivolt appliances and

Section B for electronic appliances.

A. Millivolt Wiring (See Figure 14) –

1. Install and wire in the burner control switch

(install either " a" or "b" below, NOT BOTH) a.

Standard OFF/ON Switch - Install the OFF/

ON burner control switch (rocker switch) as shown in Figures 13 and 14 . b.

Optional Control Switch (OFF/ON wall switch or remote control receiver). Install snap bushing (provided in Electrical

Outlet Kit) into control switch knock-out in side panel (see Figure 9 on Page 9 ).

Wire the optional control switch within the millivolt control circuit (as shown in

Figure 14 ) using the 15 feet of 2 conductor wire supplied (route wires through the snap bushing to the optional control switch). Mount the optional wall switch in a convenient location on a wall near the fireplace.

CAUTION: DO NOT CONNECT OPTIONAL CON-

TROL SWITCH TO 120 V POWER SUPPLY.

CAUTION: REMOVE THE CARTON SUPPORT

FROM THE CONTROL COMPARTMENT BEFORE

OPERATING THE APPLIANCE.

CAUTION: ENSURE THAT WIRES ARE POSI-

TIONED AWAY FROM HOT SURFACES AND

SHARP EDGES.

Install OFF/ON Switch

(millivolt models)

1. Connect the 2 wires (provided in Electrical

Outlet Kit) to the TP/TH and TH terminals on valve.

2. Pass the 2 wires through the opening where

OFF/ON switch will be installed (left of piezo, below valve).

3. Connect the two wires to the OFF/ON Switch.

OFF/ON

Switch

Connect wires to terminals

4. Press the OFF/ON switch into bracket as shown below (it will snap into place).

TP TH

TH

OFF/ON

Switch

Figure 13

Control Compartment

Access panel

Schematic Representation Only

White

Millivolt Wiring Diagram

If any of the original wire as supplied must be replaced, it must be replaced with Type

AWM105 C - 18 gage wire.

Thermopile

Gas

Valve

B. Electronic Wiring

(also see Figure 18 on Page 13 )

Note: The electronic appliance must be connected to the main 120 VAC power supply.

1.

Locate the Electrical Outlet Kit provided (packaged in firebox - contents: junction box, 2 screws, an receptacle outlet, a snap bushing and an OFF/ON rocker switch - for millivolt

units only).

Note: The junction box can be installed in any of the 4 outside corners of the control compartment (outlet installed in front left corner is shown in Figure 17) .

2.

Route a 3-wire, 120 VAC, 60 Hz, 1 ph power supply to the location on appliance where junction box is to be installed.

3.

Open the control compartment access panel

(see Control Compartment Access Instruc-

tions on Page 14 ).

4 . Wire and install the outlet receptacle to junction box, then install into the chosen corner of the control compartment as shown in Figure 17 .

5 . After the receptacle/junction box wiring is complete, install the field-provided metal junction box cover plate (see Figure 17 ).

6.

Install the snap bushing (provided in kit) into the selected cabinet knockout opening in side cabinets (see Electrical Inlets, Figure

9 on Page 9) . The snap bushing provides protection for the wires (see note below) passing through side cabinet going to an optional burner control switch Wire in the burner control switch to the low voltage circuit as shown in Figure 18 .

Note: The supplied 15 feet of 2 conductor wire has one end of each conductor connected to the gas valve circuit and the other end of each conductor placed loose on top of the appliance.

Important Note: The gas valve OFF/ON switch is shown in Figure 18 on Page 13.

It is integral with the gas valve and should be set to the ON

position.

Black

Field Wired

Factory

Wired

Appliance mounted OFF / ON Switch

* Optional Kits - OFF/ON wall switch or remote control receiver.

Figure 14

Ground Wire

Connection

White

(supply)

Black

(supply)

Bipolar

Terminal

Screw

Note: Supply wires may be alternatively connected to the outlet using the screw terminals, however the black supply wire must be wired to a terminal that is opposite (across the outlet) the point where the white supply wire is connected.

Figure 15


0.375" 0.25" Ø

N 120 VAC - Black

J-BOX/RECEPTIACLE

WIRING

120V, 60HZ, 1PH

Junction Box

Black

Tab

Intact

Tab Intact

Field Wired

Factory Wired

Figure 16- J-BOX WIRING

Hot

Side of

Receptacle

Neutral

Side of

Receptacle

Green

Ground

Screw

NOT FOR USE WITH SOLID FUEL

CAUTION:

Hot while in operation. Do not touch. Severe Burns may result. Keep children, clothing, furniture, gasoline and other liquids having flammable vapors away.

WARNING:

Do not connect 120 V AC to the control valve.

B-VENTED APPLIANCES NEED FRESH AIR FOR SAFE

OPERATION AND MUST BE INSTALLED SO THERE

ARE PROVISIONS FOR ADEQUATE COMBUSTION AND

VENTILATION AIR.

vapors away.

CAUTION:

factory installed refractory panel(s) removed, cracked or broken. Replacement of the factory installed refractory panel(s) should be completed by a licensed or qualified service person.

NOT FOR USE WITH SOLID FUEL

WARNING:

CAUTION:

WARNING:

Do not operate the appliance with

Improper installation, adjustment,

Hot while in operation. Do not or property damage. Refer to the owner’s information furniture, gasoline and other liquids having flammable

Do not operate the appliance with

Improper installation, adjustment,

WARNING:

OPERATION AND MUST BE INSTALLED SO THERE or additional information consult a qualified installer, service agency or the gas supplier.

Due to high temperatures, keep children, and furniture away.

Keep burner and control compartment clean. See installation and operating instructions accompanying

DIRECT VENTED APPLIANCES MUST NOT BE OPERATED

WITHOUT THE FRONT GLASS PANEL(S) INSTALLED.

0.25" Ø 0.375"

DO NOT OPERATE APPLIANCE WITH BROKEN,

CRACKED OR MISSING GLASS DOORS OR ENCLOSURE

PANEL(S).

Do not connect 120 V AC to the control valve.

THIS APPLIANCE MUST BE INSTALLED IN ACCORDANCE

WITH LOCAL CODES, IF ANY; IF NONE, FOLLOW THE

NATIONAL FUEL GAS CODE, ANSI Z223.1, OR NATURAL

GAS AND PROPANE INSTALLATION CODE, CSA B149.1.

If not installed, and maintained in accordance with the manufacturer's instructions, this product could expose you to substances in fuel or fuel combustion which are known to the state of California to cause cancer, birth defects, or other reproductive harm.

or property damage. Refer to the owner’s information manual provided with this appliance. For assistance or additional information consult a qualified installer, service agency or the gas supplier.

Due to high temperatures, keep children, and furniture away.

appliance.

OFF/ON Switch

Keep burner and control compartment clean. See installation and operating instructions accompanying

* For a copy of the homeowner’s care and operation manual, go to www.lennox.com or call 1-800-9-lennox.

GAS AND PROPANE INSTALLATION CODE, CSA B149.1.

ELECTRONIC IGNITION WIRING DIAGRAM

If not installed, and maintained in accordance with the manufacturer's instructions, this product could expose you to substances in fuel or fuel combustion which are known to the state of California to cause cancer, birth defects, or other reproductive harm.

J-Box Wiring

WITHOUT Optional Blower Switch appliance.

Control

Switch *

Pilot Burner

Assembly

BL

BL

BK

Control

Switch *

G = GREEN

Igniter

Connector

BK = BLACK BL = BLUE

R = RED W = WHITE

G = GREEN

P/N 62L2701_4

NOTES:

BL

BL

OFF/ON Switch

(Integral with

BK

Honeywell

Electronic

Gas

Valve

DAMPER

SWITCH

HIGH LIMIT

SWITCH

BK

Igniter

Connector

Optional Blower**

B-Vent appliances only - one or both of these switches must

BK

* For a copy of the homeowner’s care and operation manual, go to www.lennox.com or call 1-800-9-lennox.

Field Wired

Factory

Wired

1. If any of the original wire as supplied must be replaced, use Type AWM 105°C - 18 gage wire ONLY.

2. 120 VAC, 60 Hz - Less than 3 Amps.

DAMPER

B-Vent appliances only - one or both of these switches must be factory installed in series as shown. If wires to these switches

P/N 62L2701_4

BK

SWITCH

24 V are replaced, wires must be Type AWM 200°C - 18 gage wire ONLY.

Honeywell

Electronic

Gas

Valve

ELECTRONIC IGNITION WIRING DIAGRAM

GROUND

HIGH LIMIT

Secondary

BK

R

Primary

Field Wired

Factory

Wired

Transformer

BL

BK

24 V

Secondary

*

**

GROUND

120 VAC

Primary

**

Control Switches: Wall On/Off

Switch, Unit Mounted On/Off Switch,

Wall Thermostat (Direct-Vent Units

Only) or Remote Control Switch.

Some models are not approved for use with an optional blower. See Care and Operation manual for approved accessories.

disconnection when servicing controls.

Wiring errors can cause improper and

dangerous operation. Verify proper

operation after servicing.

G

NOTES:

1. If any of the original wire as supplied

must be replaced, use Type AWM

105°C - 18 gage wire ONLY.

2. 120 VAC, 60 Hz - Less than 3 Amps.

CAUTION: label all wires prior to

*

Wall Thermostat (Direct-Vent Units

Only) or Remote Control Switch.

Some models are not approved for use with an optional blower. See Care and Operation manual for approved accessories.

NOTES:

BK

1. If any of the original wire as supplied

must be replaced, use Type AWM

105°C - 18 gage wire ONLY.

disconnection when servicing controls.

Wiring errors can cause improper and

dangerous operation. Verify proper

operation after servicing.

Control Switches: Wall On/Off

Switch, Unit Mounted On/Off Switch,

BK

W

BK

GR

Break Off Tab

Junction Box


.

BK

G

Junction Box

J-Box Wiring

WITH Optional Blower Switch

BK

R

W

BK

GR

BK

W

G

Break Off Tab

Junction Box


Figure 18

0.375"

Receptacle, Junction Box and Cover Plate Installation

Outlet Receptacle

Junction Box Step 5. CONNECTING GAS LINE

Latching magnet not shown

All codes require a shut-off valve mounted in the supply line. The orientation of the shut-off valve should face the front. Figure

19 illustrates two methods for connecting the gas supply. A Sediment Trap is recommended to prevent moisture and debris in gas line from damaging the valve.

The millivolt control valve has a 3/8" (10 mm)

NPT thread inlet port. The electronic control valve has a 1/2" (13 mm) NPT thread inlet port and is fitted with a 1/2" x 3/8" (13 mm x

10 mm) NPT fitting.

Secure all joints tightly using appropriate tools and sealing compounds (ensure propane resistant compounds are used in propane applications). It is recommended to seal around the gas line to prevent cold air leakage.

View Of Left

Bottom Corner Of Unit

The flex-line method is acceptable in the U.S.A. where local codes permit, however, Canadian requirements vary depending on locality. Installation must be in compliance with local codes.

These appliances are equipped with a gas flexline for use in connecting the unit to the gas line.

See Figure 19 for flex-line description. The flex-line is rated for both natural and propane gas. A manual shut off valve is also provided with the flex-line.

Acquire the shut-off valve and gas lex line and pull the assembly forward out of the compartment. Separate the shut-off valve from the gas flex-line. Determine the length of pipe needed to route the gas line from the last fitting (shown in Figure 19 on Page 14 ) to a point within the control compartment that will allow the shutoff valve to be easily attached by hand to the gas flex-line.

Field-provided Metal Junction Box

Cover Plate With Screw

Junction Box knock-out (2 places each side) Fireplace

Side

Press snap bushing into the knock-out for control switch wires.

The gas control valve is located in the lower control compartment.

To access the valve open the lower control compartment door (see Figure 21) .

Using pipe-dressing materials appropriate for the gas type, securely affix the shut-off valve to this determined pipe length at a convenient location outside of the appliance lower control compartment.

Figure 17

13


14

TEST ALL CONNECTIONS FOR GAS LEAKS

(FACTORY AND FIELD):

WARNING

Never use an open flame to check for leaks.

Turn on gas supply and test for gas leaks using Turn on gas supply and test for gas leaks, using a gas leak test solution (also referred to as bubble leak solution). Note: Using a soapy water solution is an effective leak test solution but it is not recommended, because the soap

Gas

Valve

Gas Flex Line Connector

3/8" NPT x

Flare Fitting

1/2" x 3/8" Flare

Shut-off Valve

3/8" Flex Tubing

1/2" x 3/8"

Reducer

3/8" Nipple

3/8" Union

3/8" Close

Nipple 3/8" Shut-off Valve

Gas Solid Line Connector

Figure 19 - GAS CONNECTION residue that is left on the pipes/fittings can result

in corrosion over time.

A.

Light the appliance (refer to the lighting instructions label in the control compartment or in the Care and Operation Instructions manual).

B.

Brush all joints and connections with the gas leak test solution to check for leaks. If bubbles are formed, or gas odor is detected, turn the gas control knob (off/pilot/on) to the “OFF” position. Either tighten or refasten the leaking connection, then retest as described above.

C. When the gas lines are tested and leak free, be sure to rinse off the leak testing solution.

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.

*Sediment

Trap

3"

Min

Step 6. OUTSIDE AIR KITS

Optional outside make-up air kits, Model

FOAK-4 or FAOK-4LD (see Figure 22 on Page

15) , may be used with these appliances. Refer to the installation instructions packaged with the air kits for specific installation information.

If used, the outside air kit must be installed before the fireplace is framed and enclosed in the finished wall.

Outside air drawn into the fireplace supplies air to the fire for combustion. Only one outside air duct is necessary, if installed. See Figure 9, Page

9 for the location of the units outside air inlet.

If additional length of duct is necessary, purchase locally available U.L. Class 0 or Class 1 metallic ducting. The duct may extend up to 50'

(15.24 m) in any direction.

Note: When installing the air duct vertically,

DO NOT terminate the duct closer than 3 feet below the chimney top.

Outside combustion air ducting may be run upwards or vertically through framing and ceiling joists, with the hood installed through an outside wall and 3 feet (1 m) below the termination. Ducting may also be run downward through floor Joists and under the home to a ventilated crawlspace not considered part of the living area of the home.

Note: Do not terminate outside air kit in attic space under any circumstances.

CONTROL COMPARTMENT ACCESS INSTRUCTIONS ( Ref. Figure 20 )

Opening Control Compartment Door: Gently depress the outer top corners of the louvered Control

Compartment Access Panel until the spring-loaded magnetic catches "pop" it free, allowing it to swing out and down to open.

Removing Control Compartment Door: With the panel in the open position, depress the springloaded hinge pin on left side until it disengages from the left cabinet panel hole. Pull panel away from fireplace.

HI/LO (flame height control knob)

OFF/PILOT/ON (gas control knob)

Hinge Pin

Latch for

Glass Door

OFF/ON Switch

Control Compartment

Access panel

Piezo Igniter

Gas Flex Line

(with shut-off valve)

Gas Valve

Figure 20

CAUTION

Never locate inlet where it can be blocked by shrubs, snow drifts, etc. Never locate inlet in garage or any area where there is another fuel burning appliance or products emitting combustible gases such as paint, gasoline, etc. In cold climates, it is recommended the outside air duct be insulated.

After completing the installation of the optional outside air vent system, the outside air control lever must be put in service and tested to ensure proper operation before completing any enclosure around the firebox. Failure to do so may result in extensive and costly rework.

Before the operation of the vent system can be tested, the lever securing screw must be removed. See Figure 21 on Page 15.

The hand operated outside air control lever is located on the right side of the fireplace opening. See Figure 21.

To open the outside air , open the bottom control access panel, reach into the gap between the firebox bottom and pull the outside air control lever all the way out.


The outside air shutter should be fully open when the fireplace is in use and completely closed when the fireplace is not being used. Closing it when not in use will prevent outside cold air from entering the dwelling.

Operate the actuator through several cycles including the closed position. Ensuring proper operation and freedom of movement. Return the actuator arm to the closed position.

Outside Air Control Lever and Securing Screw Location

Glass Front

Outside Air Control Lever with Stop Behind

Securing Screw

Step 7. VERIFY APPLIANCE OPERATION

With gas line installed run initial system checkout before closing up the front of the unit. Follow the pilot lighting instructions provided in the

Care and Operation Instructions manual. For piezo igniter location see Figure 20 on Page

14 (millivolt appliances only).

Note: The (pull-out) Lighting instructions label can be found in the control compartment

(see Figure 20).

When first lighting the appliance, it will take a few minutes for the line to purge itself of air. Once purging is complete, the pilot and burner will light and operate as indicated in the instruction manual. Subsequent lightings of the appliance will not require such purging.

Inspect the pilot flame.

Millivolt Appliance Checkout

The pilot flame should be steady and, not lifting or floating. Flame should be blue in color with traces of orange at the outer edge.

The top 3/8" (10 mm) at the pilot generator

(thermopile) and the top

1/8

" min (tip) of the quick drop out thermocouple should be engulfed in the pilot flame. The flame should project 1"

(25 mm) beyond the hood at all three ports

( Figure 23 ).

To light the burner; rotate the gas valve control knob counterclockwise to the “ON” position then turn “ON” the OFF/ON switch (installed at

Step 4, Page 12 ).

Control Compartment Access Panel

Figure 21

Outside Air Kits - Outside Air kits are available with duct (FOAK-4) and without duct

(FOAK-4LD) for use if outside combustion air is required or desired. If model FOAK-4LD is used it must be used in conjunction with locally purchased, non-combustible Class 1 or Class

0 flexible duct.

MILLIVOLT

Proper Pilot Flame Appearance

Thermocouple

1/8" Min.

(3 mm)

Igniter Rod

Hood

Pilot

Nozzels

3/8" Min.

(9 mm)

Figure 23 Thermopile

(ref. Form # 750,008M)

Outside Combustion Air Kits

Cat. No.

Model No.

Description

81L87 FOAK-4 Combustion Air Kit (w/duct)

81L88 FOAK-4LD Combustion Air Kit (w/o duct)

Figure 22

Observe the individual tongues of flame on the burner. Make sure all ports are open and producing flame evenly across the burner. If any ports are blocked, or partially blocked, clean out the ports.

Electronic Appliance Checkout

To light the burner, turn ‘ON’ the OFF/ON switch

(located below valve) and turn the gas control switch to the “ON” position. Ensure the igniter lights the pilot. The pilot flame should engulf the flame rod as shown in Figure 24.

ELECTRONIC

Proper Flame

Adjustment

Pilot

Nozzels

Figure 24

3/8" to 1/2"

(9 -13 mm)

Ground

Electrode

Flame Rod

Hot Surface

Igniter

Step 8. INSTALL GRATE, VERMICULITE,

GLOWING EMBERS AND LOGS

WARNING

• DO NOT attempt to install the logs until the appliance installation has been completed, the gas line connected and tested for leaks and the initial burner operation has been checked out.

• The size and position of the log set was engineered to give the appliance a safe, reliable and attractive flame pattern. Any attempt to use a different log set in the fireplace will void the warranty and will result in incomplete combustion, sooting, and poor flame quality.

• Logs get very hot and will remain hot up to one hour after gas supply is turned off.

Handle only when logs are cool. Turn off all electricity to the appliance before you install grate and logs.

• This appliance is not designed to burn wood. Any attempt to do so could cause irreparable damage to the appliance and prove hazardous to your safety.

• If logs are not installed according to the log installation instructions, flame impingement and improper combustion could occur and result in soot and/or excessive production of carbon monoxide

(CO), a colorless, odorless, toxic gas.

15


16

LOG SET - IDENTIFICATION

* Item

A

B

LOG SET

Catalog Number H3210

Description

Log, Center

Log, Left Rear

C

D

E

Log, Left Front

Log, Right Rear

Log, Top Center

F Log, Front Center

* Item "letters" above correspond to photos on right

Cat. No.

REFERENCE

Firebox Accessories / Parts

Model No.

Description

88L53

H6319

FGE Bag of Glowing Embers

Vermiculite, Bag (2 liters)

Glowing Embers

Separate into Quarter

Size (separate) Pieces

Bag of Glowing

Embers (rockwool)

Figure 25

B

D

F

Bottom View of Logs (in packaging)

C

Top View of Logs

E

B

E

A

D

A

C

B

Top View of Logs - Installed

F

C

(Valve Access Side)


E

F A

D

INSTALLATION STEPS:

READ WARNINGS ON Page 15 BEFORE PROCEEDING

1. Remove the front glass enclosure panel (see Glass Enclosure Panel

Removal Instructions, Page 18 )

2. Remove the following from firebox ; log set, bag of embers and bag of vermiculite. Handle logs carefully to prevent breakage.

3 . Ensure the Grate is properly installed in the firebox with the 4 legs of the grate fitting into the 4 dimples on the firebox floor.

4. Install Vermiculite - Place some vermiculite on the firebox floor around the grate (the entire bag of vermiculite will NOT be used). See Figure 34 on Page 19.

DO NOT PLACE ANY VERMICULITE ON THE BURNER.

5.

Placement of Glowing Embers -

Separate the Embers (rockwool) into pieces about the size of a quarter

(see Figure 25) . Keep the pieces fluffed up, not matted. Distribute these pieces over the surface of the burner, as shown in Figure 26.

Do not use more than is necessary. Ensure that the main burner ports remain uncovered by the ember material.

Note : This appliance is provided with enough Glowing Embers for several applications, do not use all that is in a new bag at one time. For best glowing effect, replace the ember material annually. Replacement

Glowing Embers are available (order Catalog Number 88L53).

Place Embers on burner as shown.

7.

Place Log (B) as shown in Figure 28.

B

Position Log (B) Against The Back Of

The Grate Here

Figure 28

Position Groove at The Bottom Of Log (B) Over The Grate

Here And Slide It Against The Back Of The Grate


8.

Place Log (C) as shown in Figure 29.

Log (C) Lays Over Logs (A) and (B)

B

A

Figure 26 DO NOT PLACE EMBERS OVER

GAS PORTS / AREAS CIRCLED

6.

Place Log (A) on the grate as shown in Figure 27.

C


Position The Groove in The Back of Log (C)

Against The Grate Figure 29

9. Place Log (D) as shown in Figure 30.

Position And Slide Log (D) Against The

Back Of The Grate

A

A

Position Groove At The Bottom Of

Log (A) Over The Log Support Here

Figure 27

Position The Groove At The Bottom Of

Log (A) Over The Grate And Slide It

Forward Against The Grate Here

(Valve Access Side) (Valve Access Side)

Figure 30


D

Place Log (D) Over The

Flat Spot On Log (A) Here

17

18

10. Place Log (E) as shown in Figure 31.

Position The Round End Of Log (E) Against The Notch Of

Log (D) Here. Two Charred Spots Face The Front

E

D

C

Position Small End of Log

(E) on The Notch of Log

(C) Here

11. Place Log (F) as shown in Figure 32.


Figure 31


Figure 32

F Log (F) Sits in

Front of The Grate

Step 9. INSTALLING/REMOVING GLASS ENCLOSURE PANELS

WARNING

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

• Handle this glass with extreme care! Glass is susceptible to damage – Do not scratch or handle roughly while reinstalling the glass door frame.

• 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.

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

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.

Only doors certified with the appliance shall be used.

Seules des portes certifiées pour cet appareil doivent être utilisées.

WARNING: DO NOT abuse glass door by striking or slamming shut.

These are B-vent appliances. They are designed to operate only when the glass enclosure panels are installed. Generally the glass enclosure panels should not be removed except to gain access to the components within the firebox.

1.

Visually inspect the gasket on the backside of the panels. The gasket surface must be clean, free of irregularities and seated firmly.

2. Position the glass enclosure panel in front of the firebox opening at a 45 degree angle and engage the top flange over the lip at the top of the firebox opening. See Figure 33.

3. Swing the glass enclosure panel down and back. Ensure the gasket seats evenly as the panel draws shut. Engage the Vee-flange at the bottom of the panel with the latches and close the latches to secure the panel.

4.

Reinstall the bottom control compartment access panel (if necessary) by inserting the right side locating pin into the right side cabinet panel and then the left side spring-loaded pin into the left side cabinet panel.

Glass Enclosure Panel Removal Instructions (see Figure 33 ) - Locate the two (2) latches at the top of the control compartment. Open the two latches from the bottom vee-flange of the glass enclosure panel (reach for the handles located towards the back of the latches and pull the handles down toward the front of the appliance).

Lower Compartment

Door & Hinge

Top Flange

Glass Door

Glass Door (Enclosure Panel)

Bottom Vee-flange

Glass Door

Figure 33

Firebox Floor

Glass Door Latch


Step 10. BURNER ADJUSTMENTS

Flame Appearance and Sooting

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

When the appliance is first lit, the entire flame may be blue and will gradually turn yellowishorange during the first 15 minutes of operation.

After 15 minutes of operation, if the flame is blue, or if the flame 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 logs, 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.

Air Shutter Adjustment Guidelines

• If there is smoke or soot present, first check the log set positioning to ensure that the flames are not impinging on any of the logs.

If the log set is properly positioned and a sooting condition still exists, then the air shutter opening should be increased.

• The more offsets in the vent system, the larger the air shutter opening will need to be.

• An a ppliance operated with the air shutter opened too far, may have flames that appear blue and transparent. These weak, blue and transparent flames are termed anemic.

• Propane models may exhibit flames which candle or appear stringy. If this is present and persists, adjust the air shutter to a more closed position, then operate the appliance for a few more minutes to ensure that the flame normalizes and the flames do not appear sooty.

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

Flame

Color

Flame will be orange

Air Shutter

Adjustment

Air shutter gap should be increased

If air shutter is open too far

Flame will be blue

Air shutter gap should be decreased

Burner Air Shutter Adjustment Procedure

WARNING

• Air shutter adjustment should only be performed by a qualified professional service technician.

• Ensure glass enclosure panels are in place and sealed during adjustment.

CAUTION

• Soot will be produced if the air shutter is closed too much.

Any damage due to carboning resulting 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.

Burner Air Shutter Adjustment Procedure

1 . Locate adjustment rod and adjust air shutter to the standard setting as shown in Figure

35 (adjustment rod is located in the lower control area).

Note: Rotating the adjustment rod counterclockwise decreases air and clockwise increases air.

2.

Light appliance (follow lighting procedure on lighting label in control compartment or see care and operation instructions manual).

3. Allow the burner to operate for at least 15 minutes while observing the flame continuously to ensure that the proper flame appearance has been achieved (see Figure 34 ).

Figure 34 -

Vermiculite

Burner Flame Appearance

If the following conditions are present, adjust accordingly.

• If flame appears weak or sooty, adjust the air shutter, incrementally, to a more open position until the proper flame appearance is achieved.

• If flame stays lowered blue, adjust the air shutter, incrementally, to a more closed position until the proper flame appearance is achieved.

4.

Leave the control knob (off/pilot/on) in the

ON position (millivolt appliances) and the burner OFF/ON switch OFF (and remote switches, if applicable).

5. When satisfied that the burner flame appearance is normal, close the lower control compartment door then proceed to finish the installation.

Decrease Shutter Opening

In This Direction

Orifice

Air Shutter

Adjusting Rod

Increase Shutter Opening

In This Direction

NOTE: Burners are omitted in this view for clarity.

Main Burner Factory Air Shutter

Opening Setting - All Models

Model Natural

Gas

Propane

Gas

MPB35ST

1/8”

3.2mm

1/4”

6.4mm

Figure 35 Adjustment Rod Positions

(when viewed from above)

19


20

Step 11. VENT OPERATION TEST

A vent operation test is required as part of the installation to verify that proper venting conditions exist and should be done periodically to ensure nothing has changed that would affect proper venting of the appliance.

Procedure:

1. ENSURE APPLIANCE IS OFF (PILOT ONLY)

AND COOL.

2. Open both latches on one of the glass enclosure doors and slightly prop it open at the bottom (approx. 1/4” gap). See Figure 33 on Page 18 .

3. Turn on all the exhaust fans in the dwelling

(and any other appliances which remove air from the dwelling, such as a furnace or clothes dryer, etc)..

4. Ensure that all the doors and windows in the room where the fireplace is located are closed.

5. Light the appliance (see Lighting Instructions in Control Compartment or Care and

Operation Instructions Manual). Adjust flame height to highest setting and operate for approximately 5-10 minutes. Do not leave appliance unattended.

6. Take a smoke producing device and move it along the bottom edge of the glass door

(where it is cracked open). If smoke is drawn into the firebox, the vent operation is adequate.

IF THE SMOKE IS NOT

DRAWN INTO THE FIREBOX, TURN THE

APPLIANCE OFF AND CALL A QUALIFIED

SERVICE TECHNICIAN.

Manual-Reset (safety limit) Spill Switch

This appliance is equipped with a (safety limit)

spill switch that is designed to "trip" and disconnect the burner circuit if flue spillage occurs

(because of improper venting of combustion products or vent blockage). If, during appliance operation, the burner flame goes out (independently of the burner OFF/ON wall switch), it may be due to the operation of this (safety limit) spill

switch. If this switch "trips" it will need to be manually reset by pressing the reset button on switch (see Figure 36 ).

Procedure to Reset (safety limit) Spill Switch

ALLOW APPLIANCE TO COOL COMPLETELY

BEFORE ACCESSING AND RESETTING

To access the spill switch:

1. Pull off the top louvered panel.

2. Locate and press the red reset button on the switch (it will click and lock in).

The appliance should then relight and remain lit. If this does not occur, turn off the appliance and call a qualified service technician .

Step 12. HOOD INSTALLATION

All of these appliances must have hoods installed prior to operating on all sides with glass enclosure panels.

On all clean face units (with optional radiant panels), slide the hoods into the slots on the lower edges of the radiant panel (Figure 37).

FINISHING REQUIREMENTS

(Wall Details)

Complete finished interior wall. To install the appliance facing flush with the finished wall, position framework to accommodate the thickness of the finished wall ( Figure 37)

See Page 5 for Cold Climate Insulation and

Page 7 for Clearances .

SPILL SWITCH

Remove Top Louvered

Panel (or optional radiant panel, if applicable)

Press Reset

Button on Spill

Switch

Combustible

Wall

Framing

Combustible

Finished Wall

Materials 1 in. Min.

(25 mm)

Figure 36

Top

Spacers

Drywall

Bracket/Spacer

Hood must be installed as shown.

Top of Appliance

Louvers

Top of Door

Frame

IF OPTIONAL RADIANT

PANELS ARE INSTALLED

Top of Appliance

Radiant panel

Top of Door Frame

Hood must be installed as shown.

Figure 37 FINISHING REQUIREMENTS

17


STEP 13.

ATTACHING SAFETY IN OPERATION WARNINGS

It is the installers 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 safety instruction labels furnished with the fireplace be affixed to the operation and control point of the fireplace. A safety instruction label must be affixed to the wall switch plate where the fireplace is turned on and off (See Figure A ) and if used on the remote control handheld transmitter

( Figure B ). To properly complete the installation of this fireplace, locate the multi-lingual adhesive labels provided with the Care and Operation Instructions and proceed as follows:

1. Locate the wall switch that controls the fireplace

(verify the switch operates the fireplace by turning it on and off). Clean the wall switch plate thoroughly to remove any dust and oils. Affix the label to the surface of the plate of the wall switch that controls the fireplace ( Figure A ). Choose the language primarily spoken in the home. If unknown, affix the English language label.

2. If a remote control is used to control the fireplace, locate the 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, affix 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

1-800-655-2008

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 les étiquettes de sécurité fournies avec le foyer soient collées à côté des dispositifs de contrôle du foyer. Une étiquette de sécurité doit être collée sur la plaque de l’interrupteur contrôlant l’allumage du foyer

(voir Figure A ) et, le cas échéant, 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 l’interrupteur qui contrôle le foyer (vérifiez que l’interrupteur contrôle le fonctionnement du foyer en le faisant basculer de Marche à Arrêt, et vice-versa). Nettoyez soigneusement la plaque murale de l’interrupteur pour éliminer la poussière et les traces de graisse ou d’huile. Collez l’étiquette sur la surface de la plaque de l’interrupteur 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. Si une télécommande est utilisée pour contrôler le foyer, 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


1-800-655-2008

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 las etiquetas de instrucciones de seguridad incluidas con la chimenea se coloquen en el punto de operación y control de la misma. Se debe colocar una etiqueta de instrucciones de seguridad en la placa del interruptor de pared desde el cual se enciende y se apaga la chimenea (ver la Figura A ) y en el transmisor de control remoto ( Figura B ) si se usa. 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 interruptor de pared que controla la chimenea (verifique que el interruptor opera la chimenea encendiéndola y apagándola). Limpie bien la placa del interruptor de pared para quitar el polvo y aceite. Pegue la etiqueta en la superficie de la placa del interruptor 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. Si se usa un control remoto para controlar la chimenea, encuentre el transmisor 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


1-800-655-2008

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

Illustrations are for example only.

Your accessories may be different.

Les illustrations sont par exemple uniquement. Vos accessoires peuvent être différents.

Las ilustraciones son sólo ejemplos.

Tu accesorios pueden ser diferentes.

Figure A


Figure B

21

22

GAS CONVERSION KITS

WARNING

This conversion kit shall be installed by a qualified service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. If the information in these instruction is not followed exactly, a fire, explosion or production of carbon monoxide may result causing property damage, personal injury or loss of life. The qualified service agency is responsible for the proper installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as specified in the manufacturer’s instructions supplied with the kit. The qualified service agency performing this installation assumes responsibility for this conversion.

AVERTISSEMENT

Cette trousse de conversion doit être installée par un technicien agréé, selon les instructions du fabricant et selon toutes les exigences et tous les codes pertinents de l’autorité compétente. Assurez-vous de bien suivre les instructions dans cette notice pour réduire au minimum le risque d’incendie, d’explosion ou la production de monoxyde de carbone pouvant causer des dommages matériels, des blessures ou la mort. Le tecnicien agréé est responsable de l’installation de cette trousse. L’installation n’est pas adéquate ni complète tant que le bon fonctionnement de l’appareil converti n’a pas été vérifié selon les instructions du fabricant fournies avec la trousse. Le fournisseur de service qualifié ayant réalisé l'installation assume les responsabilités liées à la conversion.

In Canada:

THE CONVERSION SHALL BE CAR-

RIED OUT IN ACCORDANCE WITH THE

REQUIREMENTS OF THE PROVINCIAL

AUTHORITIES HAVING JURISDICTION

AND IN ACCORDANCE WITH THE RE-

QUIREMENTS OF THE CAN/CGA-B149.1

INSTALLATION CODE.

Millivolt SIT Systems

Natural Gas To Propane Gas

Conversion Kits

Models Catalog No.

GCK35STMPN H3360

Millivolt SIT Systems

Propane Gas to Natural Gas

Conversion Kits

Models Catalog No.

GCK-MPB40MPN H2014

LA CONVERSION DEVRA êTRE EF-

FECTUéE CONFORMéMENT AUX RE-

COMMANDATIONS DES AUTORITéS

PROVINCIALES AYANT JURIDICTION

ET CONFORMéMENT AUX EXIGENCES

DU CODE D'INSTALLATION CAN/CGA-

B149.1.

Gas conversion kits are available to adapt your appliance from the use of one type of gas to the use of another. These kits contain all the necessary components needed to complete the task including labeling that must be affixed to ensure safe operation.

Kit part numbers are listed here and the following steps detail the conversion procedure. Refer to the instructions provided with the conversion kit when performing any gas conversion.

Air Shutter

Adjustment Lever

Valve Access Side of Fireplace

Firebox Subfloor

Figure 38


Electronic Systems

Natural Gas To Propane Gas

Conversion Kits

Models

GCK35STENP

Catalog No.

H3361

Electronic Systems

Propane Gas To Natural Gas

Conversion Kits

Models

GCK-MP40EPN

Catalog No.

26M65

INSTALLATION INSTRUCTIONS

Step 1.

TURN OFF THE GAS SUPPLY TO THE

APPLIANCE and disconnect power supply at the circuit breaker. Ensure appliance is cold.

CAUTION: THE GAS SUPPLY SHALL BE

SHUT OFF PRIOR TO DISCONNECTING THE

ELECTRICAL POWER, BEFORE PROCEED-

ING WITH THE CONVERSION.

ATTENTION. AVANT D’EFFECTUER

LA CONVERSION, COUPEZ D’ABORD

L’ALIMENTATION EN GAZ, ENSUITE,

COUPEZ L’ALIMENTATION éLECTRIQUE.

Step 2.

Remove the front glass door/frame.

See Figure 33 .

a. Remove the control compartment door (see

Removing Control Compartment Door, Page

14 ).

c. Remove the glass panel enclosure (on valve access side) - Locate the two (2) latches at the top of the control compartment. To disengage the two latches from the bottom vee-flange of the glass enclosure panel, reach for the handles located towards the back of the latches and pull the handles down toward the front of the appliance.

d. Swing the bottom of the door out and raise it slightly to lift the top flange of the door frame away from the appliance.

Step 3.

Carefully remove the logs. Exercise care so as not to break the logs .

Step 4.

Referring to Figure 38 , remove the burner.

Pan Burner

Venturi Tube

Arm

Step 5.

Refer to Figure 39 and the instructions provided with the kit. Using a Torx T20

(with 1/4” shank and center hole) , remove and discard the three pressure regulator mounting screws. Remove the pressure regulator, spring, poppet, diaphragm and bushing. Discard all removed components . Ensure the rubber gasket installed on the back of the replacement pressure regulator is properly positioned and install the new pressure regulator using the new screws supplied with the kit. Tighten screws to

25 in-lbs of torque.

Pressure

Regulator

Figure 39

Remove

These

Components

Step 5.

Refer to Figure 40 and remove the pilot hood assembly to access the hexed pilot orifice. Remove and replace the orifice with the one provided with the kit.

Gas Valve

Assembly

Manifold

Pressure

Test Port

Slotted

Cap

Adjusting

Screw

Spring

Figure 41

Exercise extreme care to prevent damage to or breakage of the igniter assembly .

Remove the screw securing the pilot assembly to its mounting bracket. Back off the flare nut at the end of the pilot gas line to free the pilot assembly from the gas line. Remove the pilot orifice and replace it with the one provided with the conversion kit. Reinstall the pilot assembly by reversing the steps detailed here.

When reinstalling the igniter assembly, use extreme care to prevent damage and breakage. Do not apply any leverage to the igniter assembly while restoring the retainer clip to its original position.

Pilot

Orifice

Pilot

Assembly

Igniter

Assembly b.

Install the burner as shown in Figure 38 .

Ensure that the arm of the venturi of the burner is hooked onto the air shutter adjustment lever

(refer to Figure 38 on Page 22 ).

The primary air opening can be adjusted by rotating the adjustment lever from beneath the firebox floor. Refer to Figure 35 on Page 19 for the recommended minimum primary air shutter opening setting.

Burner Orifice Sizes

Elevation 0-4500 feet ( 0-1372 meters)

Model

Series

Nat.Gas

drill size (inches)

Propane drill size (inches)

MPB35ST-B

Table 8

Figure 43

#37 (.104") *

24M10 •

1.55 mm (.061")*

42M79 •


• Part /Cat. Number

BURNER POSITIONING

Pilot Assembly

Pilot

Orifice

Figure 40

Electronic Appliances

Step 6.

Honeywell Electronic Valves - See

Figure 41 and the instructions provided with the kit. Remove the slotted cap screw, o-ring, pressure-regulating adjusting screw and spring.

Retain all parts for possible later use. Install new components from the kit. Black cap and red spring for propane gas appliances. Silver cap and stainless steel spring for natural gas appliances. Before installing the cap, attach manometer to the manifold side pressure test fitting and adjust screw until pressure reads 3.5" water column (0.87 kPa) for natural gas, and

10.0" water column (2.49 kPa) for propane gas.

See Figure 42 and replace the pilot orifice as follows: Remove the igniter assembly retainer clip, and carefully remove the igniter assembly.

Flare Nut

Retaining

Clip

NOTE: If the igniter is damaged, a replacement kit is available, order Catalog No. 87L54.

Figure 42

All Models

Step 7 . (Refer to Figure 38 on Page 22 and

Figure 43 )

VERIFY THE PROPER ORIFICE SIZE BE-

FORE INSTALLING IT.

a. Remove the orifice from the manifold and replace it with the one provided in the kit. Table

8 shows the orifice sizes for natural and propane models . Figure 43 illustrates the orifice.

Use pipe joint compound or Teflon tape on all pipe fittings before installing (ensure propane resistant compounds are used in propane applications, do not use pipe joint compounds on flare fittings).


Pan Burner

Figure 44

Valve Access Side

Step 8.

Reassemble the remaining components by reversing the procedures outlined in the preceding steps. Use pipe joint compound or

Teflon tape on all pipe fittings before installing

(ensure propane resistant compounds are used in propane applications, do not use pipe joint compounds on flare fittings).

Step 9.

Attach the conversion label provided in the conversion kit to the rating plate on the appliance.

Step 10.

Turn on gas supply and test for gas leaks.

Step 11.

Attach manometer to the manifold side pressure test fitting and verify manifold pressure reads 3.5" water column (0.87 kPa) for natural gas, and 10.0" water column (2.49 kPa) for propane gas.

ALWAYS TEST PRESSURES WITH THE VALVE

REGULATOR CONTROL AT THE HIGHEST

SETTING.

23

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

Consult your local distributor for fireplace code information.

LENNOX ® , the LENNOX design, DAVE LENNOX, the image of DAVE LENNOX and other related

LENNOX marks are registered or common law trademarks of Lennox Industries Inc. and are used with permission.

Printed in U.S.A. © 2005 Lennox Hearth Products LLC

P/N 850023M REV. E 04/2013 1508 Elm Hill Pike, Suite 108 • Nashville, TN 37210

Lennox MPB35ST-NM-B Installation instructions

INSTALLATION INSTRUC TIONS

WARNING /AVERTISSEMENT/AVISO

HOT GLASS WILL

CAUSE BURNS.

UNE SURFACE VITRÉE CHAUDE

PEUT CAUSER DES BRÛLURES.

EL VIDRIO CALIENTE

CAUSARÁ QUEMADURAS.

DO NOT TOUCH GLASS

UNTIL COOLED

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

LAISSER REFROIDIR LA SURFACE

VITRÉE AVANT D'Y TOUCHER.

NE PERMETTEZ JAMAIS À UN ENFANT

DE TOUCHER LA SURFACE VITRÉE.

USTED DEBE NUNCA

TOCAR EL VIDRIO CALIENTE.

LOS NIÑOS DEBEN NUNCA

TOCAR EL VIDRIO.

WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury, or death.

- 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 t ry 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.

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.

- 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 interrupteu r. 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.

CAUTION:

WARNING:

CAUTION:

WARNING:

CAUTION:

WARNING:

WARNING:

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