Lennox MLDVT-40PM, MLDVT-35NM, MLDVT-35PM, MLDVT-40NM, MLDVT-45NM Care And Operation Instructions Manual

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Page 1

CARE AND OPERATION

Portland

INSTRUCTIONS

DIRECT VENT

WARNINGS

• Hot! Do not touch! The glass and surfaces of this appliance will be hot during operation and will retain heat for a while after shutting off the appliance. Severe burns may result.

• Carefully supervise children in the same room as appliance.

• If small children are present in the home, it is recommended that this appliance be ﬁtted with a screen door or screen panel kit. See

Pages

15 and 16 for ordering information.

OTL Report No. 116-F-57-5

WARNING: IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

Do not store or use gasoline or other ﬂammable vapors or liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS:

MLDVT-30/35/40/45 SERIES

VENTED GAS FIREPLACE HEATERS - DIRECT VENT MODELS

P/N 506017-01 REV. A 06/2009

MODELS

Millivolt Models

MLDVT-30NM MLDVT-30PM MLDVT-35NM MLDVT-35PM MLDVT-40NM MLDVT-40PM MLDVT-45NM MLDVT-45PM

AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE LES INSTRUCTIONS DONNÉES DANS CETTE NOTICE POUR RÉDUIRE AU MINIMUM LE RISQUE D'INCENDIE D'EXPLOSION OU POUR ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE BLESSURE OU LA MORT.

Ne pas entreposer ni utiliser d'essence ni d'autre vapeurs ou liquides inﬂammables dans le voisinage de cet appareil ou de tout autre appareil.

Electronic Models

MLDVT-30NE MLDVT-35NE MLDVT-40NE MLDVT-45NE

• Do not 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 your gas supplier's

instructions.

• If your gas supplier cannot be reached, call the ﬁre department.

Installation and service must be performed by a qualiﬁed installer, service agency or the gas supplier.

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 con sultation ultérieure.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d'allumer d'appareil.

• Ne touchez à aucun interrupteur. Ne pas vous servir des téléphones se trouvant dans le bátiment où vous 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 incendies.

L'installation et l'entretien doivent être assurés par un installeur ou un service d'entretien qualiﬁé ou par le fournisseur de gaz.

A French manual is available upon request. Order P/N 506223-04

Ce manuel d’installation est disponible en francais, simplement en faire la demande. Numéro de la pièce 506223-04

Page 2

CONGRATULATIONS!

GENERAL INFORMATION

In selecting this LENNOX Direct-Vent Gas Appliance you have chosen the ﬁnest and most dependable ﬁreplace to be found anywhere. Its a beautiful, prestigious alternative to a wood burning ﬁreplace. Welcome to a Family of tens of thousands of satisﬁed LENNOX Fireplace Owners.

Please carefully read and follow all of the instructions found in this manual. Please pay special attention to the safety instructions provided in this manual. The Care and Operation Instructions included here will assure that you have many years of dependable and enjoyable service from your LENNOX product.

TABLE OF CONTENTS

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

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

Gas Controls Access .........................Page 4

Operation/Care of Your Appliance .....Page 4

Variable Flame Adjustment ................Page 5

Maintenance ......................................Page 6

Front Glass Enclosure Panel,

Removal and Installation .................Page 7

Install Volcanic Stone,

Embers and Logs ...........................Page 8

Burner Flame Appearance/Sooting ....Page 12

Burner Flame Adjustments ................Page 13

Millivolt Appliance Checkout .............Page 13

Electronic Appliance Checkout ..........Page 13

Warranty ...........................................Page 13

Product Reference Information .........Page 14

Wiring Diagrams ...............................Page 14

Accessory Components ....................Page 15

Lighting Instructions – Millivolt ........Page 18

Lighting Instructions – Electronic .....Page 20

Maintenance Schedule ......................Page 22

Troubleshooting Guide – Millivolt......Page 23

Troubleshooting Guide – Electronic ..Page 24

Replacement Parts List .....................Page 25

This manual is part of a set of two supporting this product. Refer to manual 506015-02 for Installation Instructions.

The Millivolt appliances have a millivolt gas control valve with piezo ignition system provides safe, efﬁcient operation. If any optional accessories which require electrical power are being installed, the electrical power must be provided at the time of appliance installation.

The Electronic appliances have a battery backed up electronic intermittent pilot system that provides safe, efﬁcient operation. No external electrical power is required to operate these appliances.

These appliances comply with National Safety Standards and are tested and listed by OmniTest Laboratories (Report No. 116-F-57-5) to ANSI ZZ21.88 (in Canada, CSA-2.33), and CAN/CGA-2.17-M91 in both USA and Canada, as vented gas ﬁreplace heaters.

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, or the Natural Gas and Pro pane Installation Code, CAN/CSA B149.1-latest edition. The appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, the latest edition of the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1 - latest editions.

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.

INTRODUCTION

The Fireplace models covered in this manual are Direct-Vent sealed combustion gas ﬁreplace heaters designed for residential application. Direct-Vent appliances operate with the combustion chamber completely isolated from the indoor environment.

All air for combustion is brought in from the outside and exhaust gases are vented through the same direct vent, co-axial (intake/exhaust) vent system.

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.

Note: Installation and repair should be performed by a qualiﬁed service person. The appliance should be inspected annually by a qualiﬁed professional service technician. More frequent inspections and cleanings may be required due to excessive lint from carpeting, bedding material, etc.

It is imperative that the control compartment, burners and circulating air passage ways of appliance be kept clean. See Maintenance instructions on Page 6.

S'assurer que le brùleur et le compartiment des commandes sont propres. Voir les instructions d'installation et d'utilisation qui accompagnent l'appareil.

Provide adequate clearances around air open ings and adequate accessibility clearance for service and proper operation. Never obstruct the front openings of the appliance.

Due to high temperatures the appliance should be located out of trafﬁc and away from furniture and draperies. Locate furniture and window coverings accordingly.

The vent termination is hot while in operation and for a period of time following the use of the ﬁreplace. To prevent contact with hot surfaces, we recommend the use of a termination guard. See Page 15 for ordering information.

These ﬁreplaces are designed as supplemen

tal heaters. Therefore, it is advisable to have an alternate heat source when installed in a dwelling.

WARNING: These ﬁreplaces are vented heaters. Do not burn wood or other materials in these appliances.

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

Millivolt Models - BTU Input

Millivolt models come standard with the manually-modulated gas valve; ﬂame appearance and heat output can be controlled at the gas valve. The BTU Input for millivolt models is shown in Tables 1 and 2.

Page 3

Input (BTU) Manually-Modulated

Gas Valves (all models)

NATURAL GAS

Models Input Rate (BTU / HR)

MLDVT-30N

MLDVT-35N

MLDVT-40N

MLDVT-45N

13,500 high

10,500 low

16,000 high

12,500 low

22,000 high

17,000 low

23,000 high

17,500 low

Table 1

Input (BTU) Manually-Modulated

Gas Valves (all models)

PROPANE GAS

Models Input Rate (BTU / HR)

MLDVT-30P

MLDVT-35P

MLDVT-40P

MLDVT-45P

12,500 high

9,000 low

15,000 high

11,500 low

20,000 high

15,800 low

22,000 high

17,000 low

Table 2

Gas Pressure -

Tables 3 and 4 show the appliances' 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

(2.61 kPa)

13.0" WC

(3.23 kPa)

Table 3

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 4

Do not use these appliances if any part has been under water. Immediately call a qualiﬁed, professional service technician to inspect the appliance and to replace any parts of the control system and any gas control which have been under water.

Ne pas se servir de cet appareil s'il a été plongé dans l'eau, complètement ou en partie. Appeler un technicien qualiﬁé pour inspecter l'appareil et remplacer toute partie du système de contrôle et toute commande qui ont été plongés dans l'leau.

Test gauge connections are provided on the front of the millivolt gas control valve, identi ﬁed IN for the inlet and OUT for the manifold side (see Figure 3 on Page 5). A 1/8" NPT Test gauge connection is provided at the inlet and outlet (manifold) ports on the electronic gas control valve (see Figure 4 on Page 5).

These appliances must be isolated from the gas supply piping system (by closing their individual manual shut-off valve) during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

These appliances and their individual shut-off

must be disconnected from the gas

valves supply piping system during any pressure testing of that system at pressures greater than 1/2 psig (3.5 kPa).

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

WARNING: Failure to comply with the installation and operating instructions provided in this document will result in an improperly installed and operating appliance, voiding its warranty. Any change to this appliance and/or its operating controls is dangerous. Improper installation or use of this appliance can cause serious injury or death from ﬁre, burns, explosion or carbon monoxide poisoning.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning are similar to the ﬂu with headaches, dizziness and/or nausea. If you have these signs, obtain fresh air immediately. Turn off the gas supply to the appliance and have it serviced by a qualiﬁed professional, as it may not be operating correctly.

WARNING: Do not place clothing or other ﬂammable materials on or near this appliance.

AVERTISSEMENT: Surveiller les

enfants. Garder les vêtements, les meubles, l'essence ou autres liquides à vapeur inﬂammables à cote de l'appareil.

WARNING: Children and adults should be alerted to the hazards of high surface temperatures. Use caution around the appli ance to avoid burns or clothing ignition. Young children should be carefully supervised when they are in the same room as the appliance.

Oriﬁce Sizes - Sea Level to High Altitude (All Models): These appliances are tested and

approved for installations at elevations of 0-4500 feet (0-1372 meters) above sea level using the standard burner oriﬁce sizes (marked with an "*" in Table 5 ).

At the time of installation, it must be determined if the appliance needs to be derated. Contact your local gas supplier for deration requirements for your area.

Burner Oriﬁce Sizes

Elevation 0-4500 feet ( 0-1372 meters)

Model

Series

MLDVT-30

MLDVT-35

MLDVT-40

MLDVT-45

Table 5

Nat.Gas

drill size (inches)

#50 (0.070")*

H4873•

#49 (0.073")*

21L82•

#43 (0.089")*

99K75•

0.090"* 37L70•

* Standard size installed at factory

• Part /Cat. Number

drill size (inches)

#59 (0.041")*

#55 (0.052")*

#54 (0.055")*

Propane

H7838

0.045"* 75L10•

19L52•

99K79•

Page 4

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 or by 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/CSAB149.1 - latest edition.

Burn-in Period

Operation of millivolt and electronic gas con trol systems are different. Before lighting and operating your appliance determine if you have a millivolt or electronic appliance. Familiarize yourself with the gas control valve that your appliance uses. Refer to to the gas control valve.

Millivolt Appliances - Appliances with

Millivolt systems will be ﬁtted with the gas control valve shown in Figure 3.

Figure 1 for access

During the ﬁrst few ﬁres of this appliance there will be some odor due to the curing of the paint and burning off of lubricants used in the manufacturing process.

Depending on your use, the burn-in period may take a few hours or a few days.

KEEP YOUR HOUSE WELL VENTILATED DURING THE CURING PROCESS. THE ODOR AND HAZE EMITTED DURING THE CURING PROCESS CAN BE QUITE NOTICEABLE AND MAY SET OFF A SMOKE DETECTOR.

If an optional blower is installed, Do Not turn it on during the Burn-In period.

A white ﬁlm may develop on the glass front during the ﬁrst few ﬁres as part of the curing process. The glass should be kept clean during the ﬁrst two weeks of use to prevent the ﬁlm from baking on (making it very difﬁcult to remove). See

Cleaning Glass on Page 6.

Gas Controls/Control Compartment Access

The gas controls can be found behind the control compartment access door.

Control Compartment Door Tab

Figure 1

OPERATION AND CARE OF YOUR APPLIANCE

CAUTION: THE VENT TERMINATION IS HOT WHILE IN OPERATION AND FOR A PERIOD OF TIME FOLLOWING THE USE OF THE FIREPLACE. TO PREVENT CONTACT WITH HOT SURFACES, WE RECOMMEND THE USE OF A TERMINATION GUARD. SEE PAGE 17 FOR ORDERING INFORMATION.

The standard controls for appliance operation are located behind the panel below the appli ance front glass enclosure panel (Figure 2 ). Optional control switches are also available (see Pages 15 and 17 - Remote Wall Switch,

Remote Control or Wall Thermostat).

Electronic Appliances - Appliances with

electronic systems will be ﬁtted with the electronic valve shown in Figure 4.

Millivolt Appliances - To light millivolt appliances refer to Figure 2. Detailed lighting instruc- tions are found on Pages 18 and 19 . Millivolt

appliance lighting instructions may also be found on the pull out lighting instruction labels attached to the gas control valve.

Once the pilot is lit, the main burner may be turned ON and OFF using wall switch, remote control, optional on unit rocker switch (FRS), or wall thermostat. To operate: Toggle the switch between its ON and OFF positions.

If your millivolt appliance is equipped with an optional remote switch kit (wall switch, remote

control, rocker switch, or wall thermostat) and the pilot is lit, the appliance main burner may be turned on and off using the optional switch.

Removing Control Compartment Door:

Open the panel by gently lifting it upward and forwards. Slide the door, ﬁrst to one side and then the other, so the tabs clear both of the locating holes.

On millivolt systems, the piezo igniter, HI/LO ﬂame adjustment knob, and pilot and main gas OFF/ON control knob are located below the glass panel enclosure. The gas valve for electronic systems is also located below the glass enclosure panel. See

Reinstalling Control Compartment Door:

To reinstall, insert the tabs on each side of the door into the corresponding holes in the control compartment opening, one side ﬁrst then the other. To close, pull the door gently up and close by pushing forward and pushing the top edge down into the groves at the brackets until it locks in place.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Figure 2.

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.

Page 5

PILOT

OUT

VENT

Pilot Stage Terminal

Pressure-Tap (Inlet)

Pilot Gas Outlet

Supply

Gas Inlet

Pressure-Tap (Manifold)

Burner Stage Terminal

Ground (TP)

Gas Outlet To Burner

Regulator Mounting Screw

Variable Flame Height Adjustment

Manifold Pressure Port

Inlet Pressure Port

Main Gas Control Knob

TPTH TP TH

OUT

Gas Inlet

Terminals TPTH, TP and TH

Gas Outlet

Figure 2

Gas Flex Line

3 Inch Pipe Nipple

Valve

Piezo

Spring Door

Latch

Lower Control

Compartment

Note: To prevent excessive resistance in burner circuit (which can cause burner operation problems), only one burner control switch should be wired to valve.

Electronic Appliances -

To light electronic appliances refer to the detailed lighting instructions found on

Pages 20 and

21 of these instructions. Electronic appliance

lighting instructions may also be found on the pull out lighting instruction labels attached to the gas control valve.

If your electronic appliance is equipped with an optional remote wall switch or remote control kit the appliance main burner may be turned on and off with the wall switch or remote control.

If your electronic appliance is not equipped with a wall switch or remote control, the main burner must be turned off and on with a gas control switch located in some other location by the installer. Contact the installer for direc tions. Check batteries, if installed, routinely (ever three months).

Figure 3

Figure 4

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

SIT Millivolt Gas Valve

Dexen Electronic Gas Valve

TO LIGHT YOUR APPLIANCE IN A POWER

OUTAGE DO THE FOLLOWING:

• Install batteries in battery pack.

• Turn unit mounted switch or wall switch to the ON Position.

• Unit should spark at pilot and light.

• Operate Normally.

• Replace batteries if needed.

• After power is restored, remove batteries.

Note: It is recommended that batteries not be installed in the battery holder until a power outage, or if the appliance is to be operated solely with two (2) "D" batteries.

Refer to the Lighting Instructions on page 20 to light the appliance in the event of a power failure.

Variable Flame Height Adjustment

1. All millivolt appliances are equipped with a

variable gas control valve. Flame height for these models may be adjusted through a range between ﬁxed low and high settings while the appliance is in operation. Adjust the ﬂame height as desired after lighting the appliance by rotating the variable adjustment control knob (HI/LO) located on the front of the valve (refer to Figures 3 and 4).

Page 6

2. During the ﬁrst initial burns of these appli-

ances, there will be some odor emitted (

to Burn-In Period on Page 4).

3. Keep the lower control compartment clean by vacuuming or brushing at least twice a year. More frequent cleaning may be required due to excessive lint from carpeting, bedding materials, pet hair, etc. It is very important that control compartments, burners, circulating air passageways and air venturi on the appliance are NOT obstructed in any way.

4. Always turn off gas to the pilot (millivolt

appliances) and let the appliance cool down before cleaning. Before re-lighting, refer to the lighting instructions in this manual. Lighting instructions may also be found on the pull out lighting instruction labels attached to the gas control valve.

5. Always keep the appliance area clear and free from combustible materials, gasoline and other ﬂammable liquids.

6. Remember, Millivolt appliances have a continuous burning pilot ﬂame. Exercise caution when using products with combustible vapors.

refer

MAINTENANCE (See Maintenance Schedule, Page 22)

Refer to the maintenance schedule for maintenance tasks, procedures, periodicity and by whom they should be performed. Always verify proper operation of the appliance after servicing.

WARNING: Turn off gas and electrical power to the ﬁreplace and allow it to cool before cleaning or servicing the appliance.

CAUTION: Wear gloves and safety glasses for protection while doing required maintenance.

Verify proper operation after servicing.

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

Before re-lighting the ﬁreplace, refer to the lighting instructions in this manual. Instructions are also found on pull-out panels located below the glass door in the control compartment.

Inspect Venting System

The appliance and venting system should be thoroughly inspected before initial use and at least annually by a qualiﬁed service technician (inspection should include ensuring that exhaust or intake passages are unobstructed and vent components are properly assembled and not damaged).

If the venting system is disassembled for any reason, a qualiﬁed service technician should follow vent installation instructions for proper reassembly and proper sealing of the venting system components. However, more frequent periodic inspections and cleanings should be performed by the homeowner.

Cleaning Glass

(see Front Glass Enclosure Panel, Removal and Installation on Page 7 )

Note: Clean glass after ﬁrst two weeks of opera- tion (after Burn-In period is over) and then only when necessary and when the ﬁreplace is cool. Wipe surface with clean, dampened, soft cloth. Follow with dry, soft towel as desired. Take care not to scratch the glass surface.

The viewing glass should be cleaned periodically to remove any build-up caused from the following:

IMPORTANT: Do not use abrasive cleaners on glass. Never clean the glass when it is hot.

• During start-up, it is normal for condensation to form on the inside of the glass (this condensation and fog will usually disappear in a few minutes). The moisture can cause lint, dust and other airborne particles to cling to the glass surface.

• Initial curing of the high temperature paint and burning off of lubricants used in the manufacturing process may result in a ﬁlm on the glass.

• A white coating may form on the glass as a result of impurities and minerals in the fuel.

It is recommended that the glass be cleaned two or three times during each heating season, depending on the circumstances present. The following cleaning solutions are approved for use to clean glass:

• Non-ammonia based household cleaner

• 50%-50% mix of white vinegar and water

• Gas ﬁreplace/stove glass cleaner

Inspect Glass Gasket - Visually inspect the gasket on the backside of the glass enclosure panels. The gasket surface must be clean, free of irregularities and seated ﬁrmly.

Clean Logs And Burner

Carefully remove the logs (use care when han dling the ﬁber logs, as they become quite fragile after curing). Vacuum out any foreign matter (lint, carbon, etc). on the burner. Ensure the burner ports are “open.” Remove any carbon deposits from the under side of the logs using a vacuum cleaner, or a soft bristled brush (i.e. paint brush).

Note: Improper positioning of logs can create carbon build-up and will alter the performance of the appliance.

Replacing Logs -

If the logs become damaged by accident or improper handling and need replacement, use only the proper replacement logs from manufacturer (see Pages 25 and 26 for order- ing information).

Re-Install Embers and Logs - Carefully follow placement instructions on Pages 8 thru 11. All logs should ﬁt onto corresponding pins and/or log stoppers. This will ensure a proper ﬂame and safe combustion.

Inspect Wiring Refer to wiring diagrams on Page 14

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

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.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 7

Inspect and clean all wire connections. Ensure

Control Compartment Panel

Hood

Glass Door

Header Spacing Top Standoffs

Flush Nailing Flange

1/2” Nailing Flange

5/8” Nailing Flange

Glass Door Spring Latch

that there is no melting or damage. Inspection should include

• Terminals at the Valve

• OFF/ON Switch

• (Optional Control Switch) Wall Thermostat, Remote Control or Remote Wall Switch Kit

Inspect Burner Flame Appearance

Ensure that the burner ﬂame appearance resembles the ﬂame shown in Figures 11

and 12 and 13 and as described in Flame Appearance and Sooting on Page 12. The

Homeowner must contact a qualiﬁed service technician at once if any abnormal condition is observed.

Small Area Paint Touch-up

The ﬁnish of the appliance is a high-quality powdercoat. Only use factory supplied powdercoat paint kit for touch-ups. Paint is available at your local authorized Lennox Hearth Products dealer. Never attempt to paint a hot ﬁreplace.

Do not attempt to repaint the appliance until the ﬁnish is completely cured (see Burn-In Period on Page 4 ). If the surface later becomes stained or marred, it may be lightly sanded and touched up with spray paint.

Front Glass Enclosure Panel, Removal and Installation

WARNING: Do not operate appliance with the glass front removed, cracked or broken. Replacement of the glass should be done by a licensed or qualiﬁed service technician.

WARNING: Do not attempt to substitute the materials used on this door, or replace cracked or broken glass with any materials other than those provided by the appliance manufacturer.

WARNING: Handle this glass with extreme care! Tempered glass is susceptible to damage – do not scratch or handle roughly while reinstalling the glass door frame.

WARNING: The glass door 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.

WARNING: Do

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

WARNING: Any safety screen or guard removed for servicing this appliance must be replaced prior to operating the appliance.

Removing Glass Enclosure Panels (see Figure 5)

4. Retrieve the glass door. Visually inspect the

gasket on the backside of the frame. Gasket surface must be clean, free of irregularities and seated ﬁrmly.

5. Position the door in front of the ﬁrebox opening with the bottom of the door held away from the ﬁreplace (Figure 5). Hook the top ﬂange of the door frame over the top of the ﬁrebox frame.

6. Let the bottom of the door frame swing gently in towards the ﬁreplace ensuring that the gasket seats evenly as the door frame draws shut. Fasten the two latches located underneath the ﬁrebox ﬂoor to the door's vee-ﬂange. Close both the latches securely.

7. If desired, install the optional hood. Note the location of the three clips inside the top air channel above the door. The clips are equally spaced on the top surface of the air channel opening. Use a screwdriver to open the clips slightly if needed. Engage the back edge of the eyebrow into the clips to secure.

AVERTISSEMENT: Ne pas utiliser l'appareil si le panneau frontal en verre n'est pas en place, est craqué ou brisé. Confiez le remplace ment du panneau à un technicien agréé.

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

1. To access the glass door securing latches,

ﬁrst open the lower control compartment door (Figure 5 ) by lifting and pulling the bottom panel forward.

2. Pull the latches forward and down to release

them from the door channel.

3. Pull the bottom of the door out a few inches and grasp it on the right and left. Gently lift to release the door from its channel above the door. Pull the door forward.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Figure 5 - INSTALLING GLASS DOOR

Page 8

INSTALL VOLCANIC STONE, GLOWING EMBERS AND LOGS

NOTE: Turn off all electricity to the appliance before you install volcanic stone, embers and logs.

1. Remove the front glass enclosure panel

(see Removing Glass Enclosure Panels on

Page 7).

2. Always handle logs carefully to prevent breakage.

3. Install decorative volcanic stone - Sprinkle

the decorative volcanic stone in a pleasing pat tern (see Figure 6). The volcanic stone should be placed directly on top of the ﬁrebox bottom, along the slope and to the back at the right and left sides of the burner. Position any ceramic ﬁber liners before placing the stone. Logs can be positioned after the volcanic stone.

Volcanic Stone

Place Volcanaic Stone As Shown

Figure 6

4. Placement of Glowing Embers - Separate the Embers (rockwool) into pieces about the size of a quarter (see Figure 7 ). Keep the pieces ﬂuffed up, not matted. Distribute these pieces over the surface of the burner, as shown in Figures 8 and 9. Do not use more than is necessary. Ensure that the

main burner slots remain uncovered by the ember material. Position the embers on the

small holes of the ember bed area.

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.

Figure 7

Bag of Glowing

Embers (rockwool)

5. Placement of Logs -

All logs that have locating notches or slots to help ensure that they are properly positioned.

All top logs that rest on lower logs, do so over

notches, indents or nubs. Proper log placement is critical to prevent sooting. Logs should be placed in the gaps between the ﬂame peaks and should be positioned so they do not impinge the ﬂames.

MLDVT-30 & MLDVT-35 - Install the ﬁve logs as Follows:

Carefully position the ceramic ﬁber logs over the burner as shown in be placed in the order shown and per the fol lowing instructions.

1. Place the rear log (1) as shown. Position it on the left rear log bracket.

2. Place the left front log (2) as shown. Position it against the left front of the log rack.

3. Place the right front log (3) as shown. Position it against the right front of the log rack.

4. Place the left cross log (4) as shown. Position it over the rear log (1), with the front of the log resting on the log rack.

5. Place the right cross log (5) as shown. Position it over the right log (3), and rest the rear of the log over the right rear bracket.

MLDVT-40 & MLDVT-45 - Install the ﬁve logs as Follows:

Carefully position the ceramic ﬁber logs over the burner as shown in be placed in the order shown and per the fol lowing instructions.

1. Place the rear log (1) as shown. Position it on the left rear log bracket.

2. Place the left front log (2) as shown. Position it against the left front of the log rack.

Glowing Embers

Separate into Quarter

Size (separate) Pieces

Figure 8. Logs should

Figure 9. Logs should

3. Place the right front log (3) as shown. Position it against the right front of the log rack.

4. Place the left cross log (4) as shown. Position it over the rear log (1), with the front of the log resting over log (2).

5. Place the right cross log (5) as shown. Position it over the right log (3), and rest the rear of the log over the right rear bracket.

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.

WARNING: 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.

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

WARNING: 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.

REFERENCE

Firebox Accessories / Parts

Cat. No. Model No. Description

88L53 FGE Bag of Glowing Embers

80L42 FDVS

(1 oz. rockwool)

Bag of Decorative Volcanic Stone

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 9

WARNING: Logs get very hot and will remain hot up to one hour after gas supply is turned off. Handle only when logs are cool.

MLDVT-30 & MLDVT-35 LOG PLACEMENT (model-35 shown, model-30 similar)

Left Rear Log Bracket

Log Number Description

1 Rear Log 2 Left Front Log 3 Right Front Log 4 Left Cross Log 5 Right Cross Log

Catalog Number for the entire log set:

MLDVT-30: H7??? MLDVT-35: H7666

Right Rear Log Bracket

Position against the right

side of the log rack

(Do Not Place Rockwool Over Burner Slots)

Position on the left

rear log bracket

Figure 8

Rockwool

Step 1

Step 2

Log RackVolcanic Stone

Right Rear Log Bracket

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Position against the left

side of the log rack

Step 3

Position on the right rear log bracket

Position over rear log (1) and against log rack

Step 4

Page 10

WARNING: Logs get very hot and will remain hot up to one hour after gas supply is turned off. Handle only when logs are cool.

MLDVT-40 & MLDVT-45 LOG PLACEMENT (model-40 shown, model-45 similar)

Position on the left

rear log bracket

Log Number Description

1 Rear Log 2 Left Front Log 3 Right Front Log 4 Left Cross Log 5 Right Cross Log

Catalog Number for the entire log set:

MLDVT-40: H7667 MLDVT-45: H7???

Right Rear Log Bracket

Rest over log (1) and log (2) with

the front resting on the log rack.

Rockwool

(Do Not Place Rockwool Over Burner Slots)

Step 1

Position the left front log (2) and the right front log (3) against the log rack.

Step 2

Figure 9

Log RackVolcanic Stone

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Step 3

Position on the right rear log

bracket and over log (3)

Step 4

Page 11

NOTES:

Page 12

BURNER ADJUSTMENTS

(QUALIFIED TECHNICIANS ONLY)

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 yellowish-orange during the ﬁrst 15 minutes of operation. If after a short period the ﬂame stays lowered 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 openings 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. Soot ing 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

Figure 10 - Burner Flame Appearance Model MLDVT-30 & MLDVT-35

• 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 appliance 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 open position, then operate the appliance for a few more minutes to ensure that the ﬂame normal izes 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

If air shutter is open too far

Flame

Color

Flame will be orange

Flame will be blue

Air Shutter

Adjustment

Air shutter gap should be increased

Air shutter gap should be decreased

Figure 11 - Burner Flame Appearance Model MLDVT-40 & MLDVT-45

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 13

Burner Air Shutter Adjustment Procedure

ELECTRONIC

Pilot Hood

Sensor

Igniter

1. Locate adjustment rod and adjust air shutter

to the standard setting as shown in Figure 12 (adjustment rod is located in the lower

control compartment).

Note: Rotating the adjustment rod down to decrease air and up to increase air.

CAUTION: Carbon 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.

SIT MILLIVOLT PILOT ASSEMBLY

Proper Pilot Flame Appearance

Hood

Thermocouple

Igniter Rod

3/8" Min.

(9 mm)

2. Light appliance (follow lighting procedure on

lighting label in control compartment or see the lighting instructions, pages 18 and 20 in this manual).

3. Allow the burner to operate for at least 15 min utes while observing the ﬂame continuously to ensure that the proper ﬂame appearance has been achieved (see Figure 10 or 11). 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 and the burner OFF/ON switch OFF (and remote switches, if applicable).

When satisﬁed that the burner ﬂame appearance is normal, close the lower control compartment door.

Adjustment Rod Down (fully open air opening position)

Burner Air Shutter Adjustment

Adjustment Set-Screw

Adjustment Rod Up

Burner Tube

Air Shutter

(closed min. position)

Ref. Air shutter Patent: U.S. Pat. 5,553,603

Main Burner Factory Air Shutter

Opening Setting - Inches (millimeter)

Model Natural

MLDVT-30

MLDVT-35

MLDVT-40

MLDVT-45

(0.795 mm)

Gas

1/32"

Propane

Gas

1/8"

(3.2 mm)

1/8"

(3.2 mm)

1/4"

(6.4 mm)

3/16"

(4.8 mm)

Pilot Nozzels

Thermopile

Figure 13

Electronic Appliance Checkout

To light the burner, refer to the lighting instructions on Page 20. Ensure the igniter lights the pilot. The pilot ﬂame should engulf the ﬂame sensor as shown in Figure 14.

ELECTRONIC PILOT ASSEMBLY

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

WARNING: Ensure front glass panel is in place and sealed during adjustment.

CAUTION: The air shutter door and nearby appliance surfaces are hot. Exercise caution to avoid injury while adjusting ﬂame appearance.

Figure 12

Millivolt Appliance Checkout

The pilot ﬂame should be steady, 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" minimum (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. See Figure 13.

To light the burner, refer to the lighting instructions on Page 18.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Note: If the igniter is damaged, a replacement kit is available, order Catalog Number 87L54.

Figure 14

WARRANTY

Your gas appliance is covered by a limited twenty year warranty. You will ﬁnd a copy of the warranty accompanying this manual. Please read the warranty to be familiar with its coverage.

Retain this manual. File it with your other documents for future reference.

Page 14

PRODUCT REFERENCE INFORMATION

JUNCTION BOX

120 VAC

TRANSFORMER 3V

INTERMITTENT ELECTRONIC WIRING DIAGRAM

BROWN

BLACK

BATTERY BACK-UP

TO WALL

SWITCH, FRS

OR THERMOSTAT

BLACK (SENSOR)

BLACK (IGNITER)

SPARK TO PILOT IGNITER

IGNITER MODULE

RED

OPTIONAL BLOWER SWITCH

FAN

(OPTIONAL)

PILOT

OUT

VENT

ORANGE (THTP)

BLACK (TP)

GREEN (TH)

TP-TH

OPTIONAL APPLIANCEMOUNTED ON/OFF SWITCH

BK/W(1)

WALL-MOUNTED ON/OFF SWITCH (OPTIONAL) THERMOSTAT (OPTIONAL)

JUNCTION BOX

BLACK

120 V

WALL MOUNTED CONFIGURATION FOR FAN SWITCH (OPTIONAL)

WIRING DIAGRAM MILLIVOLT GAS VALVES

THERMOPILE

GAS VALVE

FAN

(OPTIONAL)

We recommend that you record the following important information about your ﬁreplace. Please contact your Lennox distributor or dealer for any questions or concerns. For the number of your nearest Lennox dealer, please call 1-800-9-LENNOX

REPLACEMENT PARTS

A complete parts list is found at the end of

Normally, all parts should be ordered through your Lennox distributor or dealer. Parts will be shipped at prevailing prices at time of order.

When ordering repair parts, always give the following information:

1. The model number of the appliance.

2. The serial number of the appliance.

3. The part number.

4. The description of the part.

5. The quantity required.

6. The installation date of the appliance.

If you encounter any problems or have any questions concerning the installation or application of this system, please contact your dealer, distributor, or Lennox directly:

LENNOX HEARTH PRODUCTS 1110 West Taft Avenue Orange, CA 92865 visit us at www.Lennox.com

this manual. Use only parts supplied from the manufacturer.

With proper care and maintenance, your appli-

Your Fireplace's Model Number ________________________________________ Your Fireplace's Serial Number ________________________________________

ance will provide many years of enjoyment. If you should experience any problem, ﬁrst refer to the troubleshooting guide in this manual. If problem persists, contact your Lennox distributor or dealer.

The Date On Which Your Fireplace Was Installed ___________________________ The Type of Gas Your Fireplace Uses ____________________________________ Your Dealer's Name ________________________________________________

WIRING DIAGRAMS

Wiring diagrams are provided here for reference purposes only. This information is also provided on schematics attached directly to the appliance on a pullout panel located within the control compartment.

CAUTION: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS APPLIANCE OPERATION.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 15

ACCESSORY COMPONENTS

Product Reference Information

Cat.

No.

H7506 MLDVT-30NM 78 lb. 9.09 cu. ft.

H7507 MLDVT-30PM 78 lb. 9.09 cu. ft.

H7508 MLDVT-30NE 78 lb. 9.09 cu. ft.

H7511 MLDVT-35NM 86 lb. 10.61 cu. ft.

H7512 MLDVT-35PM 86 lb. 10.61 cu. ft.

H7515 MLDVT-35NE 86 lb. 10.61 cu. ft.

H7516 MLDVT-40NM 108 lb. 14.01 cu. ft.

H7517 MLDVT-40PM 108 lb. 14.01 cu. ft.

H7518 MLDVT-40NE 108 lb. 14.01 cu. ft.

H7519 MLDVT-45NM 122 lb. 15.76 cu. ft.

H7520 MLDVT-45PM 122 lb. 15.76 cu. ft.

H7521 MLDVT-45NE 122 lb. 15.76 cu. ft.

Digital Wall Thermostat

The wall thermostat kit provides temperature control for optimum comfort.

Cat. No. Model No. Description

H4635 DWTK Wall Thermostat Kit,

Model Ship.

Weight

Wall Thermostat, Millivolt

White

Ship.

Volumn

Standard Remote Control System

The Model RCL (Standard) Remote Control System, features a simplistic OFF/ON control function for the ﬁreplace. This model includes a hand-held transmitter, a remote receiver with wall-mount cover plate and all hardware required to install the unit. The remote receiver can be wall or hearth mounted.

The transmitter has ON and OFF functions that are activated by pressing either button on the face of the transmitter. When a button on the transmitter is pressed, a signal light illuminates brieﬂy to verify that a signal has been sent.

The Model RCL is designed to operate with all mil livolt ignition systems, as well as electronic ignition systems. It may be installed with use for either natural gas or propane gas appliances. The RCL offers ease of installation and allows you to execute on-off commands to the ﬁreplace effortlessly with one simple motion.

The Model RCL comes complete with detailed operat ing instructions.

Remote Control Kit, Standard

Cat. No. Model No. Description

H0249 RCL Remote Control System

(Standard)

Deluxe Remote Control System

The Model RCL-T (Deluxe) Remote Control System has all of the features of the standard system along with an added easy to read LCD screen which presents access to many enhancements, including; battery power level indicator, timer, mode of operation, thermostatic display including room temperature in either metric of English units, ﬂame indicator and clock. Fully programmable, the Model RCL-T allows for virtual command over nearly all operational and temperature variables, using the hand held remote control transmitter.

The Model RCL-T (Deluxe) remote control system

is installed in the same manner as the standard system, may be operated with electronic and millivolt systems with either natural gas or propane gas. The RCL-T comes complete with detailed operating instructions.

Remote Control Kit, Deluxe

Cat. No. Model No. Description

H0251 RCL-STAT Remote Control System

(Deluxe)

Unit-Mountable Rocker Switch

This rocker switch kit can be installed directly in the gas valve mounting bracket (millivolt gas valve equipped ﬁreplaces) to provide On/Off operation in lieu of a wall switch.

Rocker Switch Kit

Cat. No. Model No. Description

80L41 FRS Rocker Switch Kit

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Barrier Screen Panel Kit

This easy to install optional screen panel installs over the standard glass enclosure panel and provides a barrier to prevent direct contact with the hot glass surface. These screen panels cannot be used in conjunction with the arch door kits or door frame kits.

Screen Panel Kits

Cat. No. Model No. Models Where Used

H6094 30MSKP MLDVT-30

H6095 35MSPK MLDVT-35

H3989 40LSPK MLDVT-40

H3990 45LSPK MLDVT-45

Page 16

ACCESSORY COMPONENTS CONTINUED

Arch Pane Design

Square Pane Design

ARCH PANE DESIGN KITS

Cat. No. Model Description Model Series

35” Arch Pane Door, Painted

35” Arch Pane Door, Satin Pewter

MLDVT-35

H6106

APDML35C

H6107

APDML35SP

40” Arch Pane Door, Painted

MLDVT-40

40” Arch Pane Door, Satin Pewter

H6108

APDML40C

H6109

APDML40SP

30” Arch Pane Door, Painted

MLDVT-30

30” Arch Pane Door, Satin Pewter

APDML30C

APDML30SP

H6104

H6105

45” Arch Pane Door, Painted

MLDVT-45

45” Arch Pane Door, Satin Pewter

APDML45C

APDML45SP

H6110

H6111

SQUARE PANE DESIGN KITS

Description Model Series

35” Square Pane Door, Painted

35” Square Pane Door, Satin Pewter

MLDVT-35

H6098 SPDML35C

H6099

SPDML35SP

40” Square Pane Door, Painted

MLDVT-40

40” Square Pane Door, Satin Pewter

H6100 SPDML40C

H6101

SPDML40SP

Cat. No. Model

30” Square Pane Door, Painted

MLDVT-30

30” Square Pane Door, Satin Pewter

SPDML40C

SPDML40SP

H6096

H6097

45” Square Pane Door, Painted

MLDVT-45

45” Square Pane Door, Satin Pewter

SPDML45C

SPDML45SP

H6102

H6103

Pull Screen Panel Kit

This easy to install optional decorative screen kit installs over the standard glass enclosure panel. These screen kits cannot be used in conjunction with the arch door kits or door frame kits.

Cat. No. Model No. Models Where Used

H6112 PSFPKM30 MLDVT-30

H6113 PSFPKM35 MLDVT-35

H6114 PSFPKM40 MLDVT-40

H6115 PSFPKM45 MLDVT-45

Screen Panel Kits

Style View Screen Doors -

These Style View doors are easy to install and will not require hardware to atach them to the standard glass door frame. The Style View door installs over the standard glass enclosure panel and provides a barrier to prevent direct contact with the hot glass surface. The door includes heavy duty magnet door latches and functional twin-pane screen doors.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 17

ACCESSORY COMPONENTS CONTINUED

White Wall Switch Kit

Cat. No. Model No. Description

85L87 FWSK OFF/ON Wall Switch Kit

OFF/ON Wall Switch Kit

The OFF/ON wall switch kit may be used to control the operation of the ﬁreplace burner or blower. Install the OFF/ON wall switch in a convenient location near the ﬁreplace.

Brickaded Wall Liner Kits

Cat. No. Model No. Description

H7523 MBLPK-30B

H7525 MBLPK-35B

H7528 MBLPK-40B

H7531 MBLPK-45B

H7524 MBLPK-30R

H7526 MBLPK-35R

H7529 MBLPK-40R

H7532 MBLPK-45R

H7525 MBLPK-30H

H7527 MBLPK-35H

H7530 MBLPK-40H

H7533 MBLPK-45H

Brick Liner Kit, Buff MLDVT-30

Brick Liner Kit, Buff MLDVT-35

Brick Liner Kit, Buff MLDVT-40

Brick Liner Kit, Buff MLDVT-45

Brick Liner Kit, Red MLDVT-30

Brick Liner Kit, Red MLDVT-35

Brick Liner Kit, Red MLDVT-40

Brick Liner Kit, Red MLDVT-45

Brick Liner Kit, Herringbone MLDVT-30

Brick Liner Kit, Herringbone MLDVT-35

Brick Liner Kit, Herringbone MLDVT-40

Brick Liner Kit, Herringbone MLDVT-45

Brickaded Panel Liner Kit

Forced Air Blower Kits

Cat.

Model No. Description

No.

80L84 FBK-100 Blower, Standard

80L85 FBK-200 Blower, Variable Speed

H7841 FBK-300 Blower, Variable Speed

(single speed)

(w/wall-mounted switch)

(w/thermal snap switch)

Forced Air Kit

The FBK-100 blower provides constant velocity forced air circulation. The FBK-200 assembly with variable speed, wall-mountable switch provides variable speed forced air circulation.

Variable Speed Wall Switch

Provides variable speed control if optional blower kit is purchased.

Variable Speed Wall Switch

Cat. No. Model No. Description

045571H VSWS Rocker Switch Kit

Bag of Glowing Embers Bag of Volcanic Stone

Replacement ember materials or volcanic stone are available for use with these appliances. Order kits as part of the periodic maintenance of the appliance.

Decorative Firebox Accessories

(all models)

Cat. No. Model No. Description

88L53 FGE

80L42 FDVS

Bag of Glowing Embers (1 oz. rockwool)

Bag of Decorative Volcanic Stone

Touch-Up Paint Kit

Repair of minor scratches and discoloration of the appliance black painted surfaces may be accomplished with the touch-up paint kit.

Touch-Up Paint Kits

(all models)

Cat. No. Model No. Description

90L73 FTPK-B Touch-Up Paint (Black)

Termination Shroud

(Fits H1968)

Deluxe Termination

Guard (Fits 94L10)

Square Termination

Guard (Fits 94L10)

Termination Guard Kits

(all models)

Cat. No. Model No. Description

H5820 4.5HTSK Termination Shroud

87L02 SV4.5HGS Termination Guard,

17M52 SV4.5HGS-1 Termination Guard,

Deluxe

Square

Termination Guard Kits

The vent termination guards may be used to cover the vent termination on the exterior of the home to minimize exposure to the hot surface of the termination.

The brickaded liner kits include ceramic panels as shown here. The panels have brick-like features in relief.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 18

LIGHTING INSTRUCTIONS – MILLIVOLT GAS VALVE

TPTH TP TH

OUT

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY

RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

A. This appliance has a pilot which must be lighted with a piezo

igniter. When lighting the pilot, follow these instructions exactly.

B. BEFORE OPERATING smell all around the appliance area for

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

WHAT TO DO IF YOU SMELL GAS

• Extinguish any open ﬂame.

• Open windows.

• Do not light any appliance.

• Do not touch any electrical switches.

LIGHTING INSTRUCTIONS

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

2. Access the lower control compartment.

3. Turn remote wall switch to “OFF.”

4. Verify main line shut-off valve is open.

5. Push in gas control knob slightly and turn clockwise

to “OFF.”

• Do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s

phone.

• If your gas supplier cannot be reached, call the ﬁre depart-

ment.

C. Use only your hand to push in or turn the gas control knob.

Never use tools. If the knob will not push in or turn by hand, do not try to repair it, call a qualiﬁed service technician. Force or attempted repair may result in a ﬁre or an explosion.

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

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

6. Wait ﬁve (5) minutes to clear out any gas. If you then smell gas,

STOP! Follow “B” in the safety information above on this page. If you do not smell gas, go to the next step.

7. Push in gas control knob slightly and turn counterclockwise

to “PILOT.”

8. Push in control knob all the way and hold in. Immediately light the

pilot by triggering the spark igniter (pushing the button) until pilot lights. Continue to hold the control knob in for about 1-1/2 minutes after the pilot is lit. Release knob and it will pop back up. Pilot should remain lit. If it goes out, repeat steps 5 through 8.

Note: Knob cannot be turned from “PILOT” to “OFF” unless the knob is pushed in slightly. Do not force.

TO TURN OFF GAS TO APPLIANCE

1. Turn remote wall switch “OFF.” The pilot will remain lit for nor-

mal service.

2. For complete shutdown, turn remote wall switch to “OFF.”

3. Access the lower control compartment.

• If knob does not pop up when released, stop

and immediately call your service technician or gas supplier.

• If pilot will not stay lit after several

tries, turn the control knob to “OFF” and call your service technician or gas supplier.

9. Turn gas control knob counterclockwise

to “ON.”

10. Close lower control compartment.

4. Depress gas control knob slightly and turn clockwise

to “OFF.” Do not force.

5. Close lower control compartment.

Page 19

INSTRUCTIONS D’ALLUMAGE – VANNE GAZ MILLIVOLT

TPTH TP TH

OUT

POUR VOTRE SÉCURITÉ, LISEZ CES INSTRUCTIONS AVANT L’ALLUMAGE

AVERTISSEMENT : SI VOUS NE SUIVEZ PAS CES INSTRUCTIONS À LA LETTRE, IL POURRAIT S’EN SUIVRE UN INCENDIE OU

UNE EXPLOSION CAUSANT DES DOMMAGES MATÉRIELS, DES BLESSURES CORPORELLES OU MÊME DES PERTES DE VIE.

A. Cet appareil est muni d’une veilleuse qui doit être allumée avec un

allumeur piézo-électrique. Lorsque vous allumez la veilleuse, suivre exactement ces instructions.

B. AVANT L’ALLUMAGE: Assurez-vous que vous ne détectez aucune odeur

de gaz autour de l’apareil ainsi que près du sol; certains gaz, étant plus lourds que l’air, descendent au niveau du sol.

VOICI CE QUE VOUS DEVEZ FAIRE SI VOUS DÉCELEZ UNE ODEUR

DE GAZ:

• Éteignez toute ﬂamme visible.

• Ouvrez les fenêtres.

• N’allumez aucun appareil.

• Ne touchez à aucun commutateur électrique.

• Ne vous servez d’aucun téléphone dans votre édiﬁce.

INSTRUCTIONS D'ALLUMAGE

1. ARRÊTEZ! Lisez les consignes de sécurité au verso de cette plaque.

2. Ouvrez le compartiment de contrôle du bas.

3. Tournez l’interrupteur mural à la position d’arrêt “OFF”.

4. Assurez-vous que la soupape d’arrêt de la canalisation principale est

ouverte.

5. Enfoncez légèrement le bouton de réglage du gaz et tournez-le dans

le sens des aiguilles d’une montre jusqu’à la position d’arrêt “OFF”.

• Appelez immédiatement votre compagnie de gaz en utilisant le télé-

phone du voisin.

• S’il vous est impossible de contacter votre compagnie de gaz, appelez

le service des incendies.

C. N’utilisez que votre main pour manipuler le bouton de réglage du gaz.

N’utilisez jamais d’outils. Si le bouton refuse de tourner ou de bouger, n’essayez pas de le réparer. Communiquez immédiatement avec un technicien de service qualiﬁé. Toute tentative pour le forcer ou le réparer, risquerait de provoquer un incendie ou une explosion.

D. Ne vous servez pas de cet appareil si l’un de ses éléments a été

immergé dans l’eau. Appelez immédiatement un technicien compétent pour faire inspecter l’appareil et remplacer toute pièce du système de réglage ou commande du gaz qui a été sous l’eau.

8. Enfoncez le bouton de réglage jusqu’au fond et gardez-le enfoncé.

Allumez immédiatement la veilleuse en déclenchant l’allume-gaz à étincelle (en poussant le bouton) jusqu’à ce que la veilleuse s’enﬂamme. Continuez de tenir le bouton de réglage enfoncé pen dant environ 90 secondes après l’allumage de la veilleuse. Relâ

chez le bouton et il sortira subitement. La veilleuse devrait rester allumée. Si elle s’éteint, répétez les étapes 5 à 8 inclusivement.

• Si le bouton ne sort pas automatiquement après avoir été relâché,

arrêtez immédiatement et téléphonez à votre technicien de service ou à votre fournisseur de gaz.

Remarque: Il est impossible de tourner le bouton de “PILOT” à “OFF” à moins qu’il ne soit légèrement enfoncé. Ne le forcez pas.

6. Attendez cinq (5) minutes pour l’evacuation du gaz. Si vous décelez

une odeur de gaz, ARRÊTEZ ! Retournez au point “B” des con signes de sécurité au verso de cette plaque. Si vous ne remarquez aucune odeur de gaz, passez à l’étape suivante.

7. Enfoncez légèrement le bouton de réglage du gaz et tournez-le en

sens inverse des aiguilles d’une montre jusqu’à la position de veil leuse “PILOT”.

POUR FERMER LE GAZ QUI ALIMENTE L’APPAREIL

1. Tournez l’interrupteur mural à la position d’arrêt “OFF”. La veilleuse

restera allumée jusqu’au retour du service normal.

2. Pour une fermeture complète, tournez l’interrupteur mural à la posi-

tion d’arrêt “OFF”.

3. Ouvrez le compartiment de contrôle du bas.

• Si la veilleuse refuse de rester al-

lumée après plusieurs tentatives, tournez le bouton de réglage jusqu’à sa position d’arrêt “OFF” et télé

phonez à votre technicien de service ou à votre fournisseur de gaz.

9. Tournez le bouton de réglage du gaz

en sens inverse des aiguilles d’une montre jusqu’à sa position de marche “ON”.

10. Fermez le compartiment de contrôle du bas.

11. Au besoin, rebrancher l’appareil au courant électrique et remettre

l’interrupteur du brûleur principal à la position “ON” ou régler le thermostat à la température désirée.

12. Si l’appareil ne fonctionne pas, suivre les instructions intitulées

“Pour fermer le gaz qui alimente l’appareil” et appeler un tech

nicien ou le fournisseur de gaz.

4. Enfoncez légèrement le bouton de réglage du gaz et tournez-le dans

le sens des aiguilles d’une montre jusqu’à la position d’arrêt “OFF”. Ne forcez pas le bouton.

5. Fermez le compartiment de contrôle du bas.

Page 20

LIGHTING INSTRUCTIONS — ELECTRONIC

PILOT

OUT

VENT

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY

RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

A. When lighting the appliance, follow these instructions

exactly.

B. BEFORE OPERATING smell all around the appliance area

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

WHAT TO DO IF YOU SMELL GAS

• Extinguish any open ﬂame.

• Open windows.

• Do not light any appliance.

• Do not touch any electrical switches.

LIGHTING INSTRUCTIONS

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

2. Turn remote wall switch to “OFF" or set wall thermostat

to lowest setting. If used, remove the batteries from the battery holder.

3. This appliance is equipped with an ignition device which

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

4. Push the unit mounted "ON/OFF" switch to the "OFF" posi-

tion.

• Do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s

phone.

• If your gas supplier cannot be reached, call the ﬁre

department.

C. 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.

6. Push the unit mounted "ON/OFF" switch back to the "ON"

position. (The "ON/OFF" switch may include a wall switch if so equipped). Replace the batteries in the battery holder, if used. If the burner does not light or stay lit after several tries, turn the unit mounted "ON/OFF" switch to the "OFF" position and call your service technician or gas supplier. NOTE: Sufﬁcient time must be allowed for air to escape from lines if the unit is being lit for the ﬁrst time.

7. Turn HI-LO burner control knob to desired setting and

close control door.

8. Set thermostat to desired setting if applicable.

9. If the appliance will not operate, follow the in-

structions "To Turn Off Gas To Appliance" and call your service technician or gas supplier.

TO SHUT OFF

5. Allow sufﬁcient length of time (minimum 5 minutes) for

any gas in the combustion chamber to escape. If you still smell gas, STOP! Follow “B” in the safety information above on this page. If you do not smell gas, go to the

1. Turn off all electrical power to the appliance (remote wall

switch) or set the thermostat to the lowest setting, if applicable. Or remove batteries, if used.

next step.

TO TURN OFF GAS TO APPLIANCE

1. For complete shut-down, turn remote wall switch to “OFF"

or set the thermostat to the lowest setting, if applicable.

3. Turn off all electric power to the appliance and remove

backup batteries if service is to be performed or for extended shutdown.

2. Turn the ON/OFF switch to “OFF”. If step 1 is not applicable.

Page 21

INSTRUCTIONS D’ALLUMAGE — ELECTRONIC

PILOT

OUT

VENT

POUR VOTRE SÉCURITÉ, LISEZ CES INSTRUCTIONS AVANT L’ALLUMAGE

AVERTISSEMENT: SI VOUS NE SUIVEZ PAS CES INSTRUCTIONS À LA LETTRE, IL POURRAIT S’EN SUIVRE UN INCENDIE OU UNE EXPLOSION CAUSANT DES DOMMAGES MATÉRIELS, DES BLESSURES CORPORELLES OU MÊME DES PERTES DE VIE.

A. Lorsque vous allumez l’appareil, suivez exactement ces instruc-

tions.

B. AVANT L’ALLUMAGE: Assurez-vous que vous ne détectez

aucune odeur de gaz autour de l’apareil ainsi que près du sol; certains gaz, étant plus lourds que l’air, descendent au niveau du sol.

VOICI CE QUE VOUS DEVEZ FAIRE SI VOUS DÉCELEZ UNE ODEUR DE GAZ

• Éteignez toute ﬂamme visible.

• Ouvrez les fenêtres.

• N’allumez aucun appareil.

INSTRUCTIONS D’ALLUMAGE

1. ARRÊTEZ ! Lisez les consignes de sécurité au verso de cette

plaque.

2. Tournez l’interrupteur mural à la position d’arrêt “OFF”.

3. Ouvrez la porte du compartiment de contrôle du bas.

4. Assurez-vous que la soupape d’arrêt de la canalisation principale

est ouverte.

5. Tournez la manette de réglage du gaz à la position d’arrêt

“OFF”.

• Ne touchez à aucun commutateur électrique.

• Ne vous servez d’aucun téléphone dans votre édiﬁce.

• Appelez immédiatement votre compagnie de gaz en utilisant

le téléphone du voisin.

• S’il vous est impossible de contacter votre compagnie de

gaz, appelez le service des incendies.

C. Ne vous servez pas de cet appareil si l’un de ses éléments a

été immergé dans l’eau. Appelez immédiatement un technicien compétent pour faire inspecter l’appareil et remplacer toute pièce du système de réglage ou commande du gaz qui a été sous l’eau.

Si vous ne remarquez aucune odeur de gaz, passez à l’étape

suivante.

7. Tournez la manette de réglage du gaz jusqu’à la position de

marche “ON”. Ne la forcez pas.

8. Ouvrez le courant électrique (“ON”) qui alimente l’appareil

(interrupteur mural).

9. Fermez la porte du compartiment de contrôle du bas.

10. Au besoin, rebrancher l’apareil au courant électrique et

remettre l’interrupteur principal du brûleur à la position “ON” ou régler le thermostat à la température désirée.

11. Si l’appareil ne se met pas en marche, suivre

les instructions intitulées “Pour fermer le gaz qui alimente l’appareil” et appeler un technicien ou le fournisseur de gaz.

POUR ÉTEINDRE L’APPAREIL

6. Attendez cinq (5) minutes pour l’evacuation du gaz. Si vous

décelez une odeur de gaz ARRÊTEZ ! Retournez au point “B” des consignes de sécurité au verso de cette plaque.

1. Coupez tout le courant électrique qui alimente l’appareil (inter-

rupteur mural).

POUR FERMER LE GAZ QUI ALIMENTE L’APPAREIL

1. Pour une fermeture complète, tournez l’interrupteur mural à la

position d’arrêt “OFF”.

2. Ouvrez la porte du compartiment de contrôle du bas.

3. Tournez la manette de réglage du gaz à la position d’arrêt “OFF”.

Ne la forcez pas.

4. Fermez la soupape d’arrêt de la canalisation principale.

5. Fermez la porte du compartiment de contrôle du bas.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 22

MAINTENANCE SCHEDULE

Annually (Before the onset of the Burning Season)

MAINTENANCE TASK ACCOMPLISHING PERSON PROCEDURE

Inspecting/Cleaning Burner, Logs and Controls

Check Flame Patterns and Flame Height

Inspecting/Cleaning Pilot and Burner Qualiﬁed Service Technician Refer to

Checking Vent System Qualiﬁed Service Technician Inspect the vent system at the top and at the base (within the

Appliance Checkout Qualiﬁed Service Technician Perform the appropriate appliance checkout procedure detailed

Qualiﬁed Service Technician Inspect valve and ensure it is properly operating. Check piping

for leaks. Vacuum the control compartment, ﬁreplace logs and burner area.

Qualiﬁed Service Technician Refer to

Figure 10 (MLDVT-35), Figure 11 (MLDVT-40) on Page

12 and verify the ﬂame pattern and height displayed by the

appliance conforms to the picture. Flames must not impinge on the logs. Ensure ﬂames are steady (not lifting or ﬂoating).

Figure 13 (SIT Millivolt) or Figure 14 (Electronic) on

Page 13. Remove any surface build-up on pilot and burner assembly. Wipe the pilot nozzles, igniter/ﬂame rod and hood. Ensure the pilot ﬂame engulfs the ﬂame sensor as shown.

ﬁrebox) for signs of blockage or obstruction. Look for any signs of dislocation or deterioration of the vent components.

Excessive condensation can cause corrosion of caps, pipe and ﬁttings (excessive condensation can be caused by long lateral runs, too many elbows and/or exterior portions of the system being exposed to cold weather). Also inspect wall straps or plumbers's tape to ensure it is secure and in place.

in this manual.

Note:

Replacing Rockwool Ember Materials Homeowner/Qualiﬁed Service

Technician

Periodically (After the Burning Season)

Remove old ember materials (rockwool) and vacuum the ember placement area. Place new embers as described and shown in

Figures 8 and 9.

MAINTENANCE TASK ACCOMPLISHING PERSON PROCEDURE

Cleaning Firebox Interior Homeowner Carefully remove logs, rockwool and volcanic stone. Vacuum

out interior of the ﬁrebox. Clean ﬁrebox walls and log grate. Replace logs, rockwool, and volcanic stone as detailed in this manual.

Check Flame Patterns and Flame Height

Checking Vent System

Cleaning Front Glass Enclosure Panel

Homeowner Refer to

12 and verify the ﬂame pattern and height displayed by the appliance conforms to the picture. Flames must not impinge on the logs.

Homeowner Inspect the vent system at the top and at the base (within the

ﬁrebox) for signs of blockage or obstruction. Look for any signs of dislocation of the vent components.

Homeowner Clean as necessary following the directions provided in this

manual. DO NOT TOUCH OR ATTEMPT TO CLEAN GLASS

WHILE HOT

Figures 10 (MLDVT-35), 11 (MLDVT-40) on Page

Page 23

TROUBLESHOOTING THE MILLIVOLT CONTROL SYSTEM

Note: Before troubleshooting, be sure that the appliance main line gas shut-off valve, the gas control valve and the wall

switch are in the “ON” position.

Important: Valve system troubleshooting should only be accomplished by a qualiﬁed service technician.

SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION

1. Spark igniter will not light pilot after

repeated triggering of igniter button.

WARNING: if the pilot will not light

after 1 minute of attempting, wait for at least 5 minutes for gas to clear before attempting again.

2. Pilot will not stay lit after

carefully following the lighting instructions.

3. Pilot burning, no gas to burner, Valve

knob “ON,” and the (standard) burner OFF/ON switch is “ON." Read important note below.

IMPORTANT NOTE: If an optional

*remote switch is used for burner operation, if the standard burner OFF/ON switch is still installed on appliance it must be in the "OFF" position.

*Optional remote switch kits - wall

switch, wall thermostat or remote control.

4. Frequent pilot/burner outage prob-

lem.

A. Defective igniter (no spark at electrode).

B. Defective or misaligned electrode at pilot

(spark at electrode).

C. Gas supply pressure errant. Check inlet gas pressure. It should be within the limits

D. Pilot oriﬁce plugged. Clean or replace pilot oriﬁce. A. Defective pilot generator

(thermocouple).

A. Wall switch or wires defective. Check wall switch and wires for proper connections.

B. Thermopile may not be generating suf-

ﬁcient millivolts.

C. Plugged burner oriﬁce. Check burner oriﬁce for blockage and remove. D. OFF/ON Switch and *Remote Switch are

in the "ON" position resulting in excessive resistance.

A. Pilot ﬂame may be too low or blowing (high)

causing the pilot/valve safety to drop out.

Check for spark at electrode and pilot; if no spark and electrode wire is properly connected, replace igniter.

Using a match, light pilot. If pilot lights, turn off pilot and trigger the igniter button again. If pilot lights, an improper gas mixture caused the bad lighting and a longer purge period is recommended. If pilot will not light – check gap at electrode and pilot – should be 1/8" to have a strong spark. If gap measures 1/8", replace pilot (see

as marked on the rating plate.

Check pilot ﬂame, it must impinge on thermocouple

Figure 13 on Page 13). Clean and/or adjust pilot

(see for maximum ﬂame impingement on thermocouple. Ensure that the connection between the valve and thermocouple are tight and secure.

Jumper wire across terminals at wall switch, if burner comes on, replace defective wall switch. If okay, jumper wires across wall switch wires at valve, if burner comes on, wires are faulty or connections are bad.

Check thermopile with millivolt meter. Take reading at thermopile terminals of gas valve. Should read 325 millivolts minimum with optional wall switch “OFF.” Replace faulty thermopile if reading is below speciﬁed minimum.

When turning on the burner using a *remote switch, ensure that the standard OFF/ON switch is in the "OFF" position. If both switches are in the ON position, it may result in excessive resistance (and millivolt drainage) and the burner may not come on.

Clean and/or adjust pilot ﬂame for maximum ﬂame impingement on thermocouple (see Page 13).

Figure 13 on Page 13).

Figure 13 on

Page 24

TROUBLESHOOTING THE ELECTRONIC IGNITION SYSTEM

Note: Before troubleshooting, be sure that the appliance main line gas shut-off valve, the gas control valve and the wall

switch are in the “ON” position.

Important: Valve system troubleshooting should only be accomplished by a qualiﬁed service technician.

SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION

1. Nothing happens when

ON/OFF switch is turned on (pilot does not spark).

2. The main burner does

not light and the igniter is sparking.

3. The main burner come

"ON" but then go "OFF".

A. Low voltage/or bad lead

wires.

B. Damaged igniter wire.

C. Damaged pilot assembly.

D. Batteries Low

A. No fuel supply.

B. Loose sensor wire.

C. Lose wires to valve.

D. Loose wires to ignition

module.

E. Air in the gas line.

F. Low voltage.

A. Gas supply is turned

"OFF".

B. Loose wire connection on

valve or ignition module.

Check voltage on AC terminals of module an/or batteries. The value should be around 2.7 to 3.2 VAC. Conﬁrm that wire connections are secure.

Check for visible cracked casing, cuts, etc.

Check pilot assembly for visibly broken spark electrode, etc.

Check voltage on D.C. terminal of batteries. The value should be around 3.0V

Ensure that the gas supply is turned on.

Ensure sensor wire connection is secure.

Ensure black, green and orange wires connection is secure to valve.

Ensure black sensor wire (S) and black igniter wire (I) is secure to ignition module.

Purge gas line of air.

Test voltage at AC terminals of module and/or batteries. It should be around

2.7 to 3.2 VAC.

Turned gas supply to "ON".

Check wire connection.

4. The log and glass soot.

C. Flame does not engulf

ﬂame sensor.

D. Obstructed vent system.

A. Flame impingement on

the log.

B. Improper air shutter

opening.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Check location of sensor.

Check vent system for obstructions.

Check for proper log placement.

Check for proper air shutter openings.

Page 25

REPLACEMENT PARTS LIST

Item

Description MLDVT-30 MLDVT-35 MLDVT-40 MLDVT-45

No.

1 Hood H7568 1 H7266 1 H7267 1 H7569 1 2 Lower Control Compartment Panel H7556 1 3 Enclosure, Glass Front (Complete) H7560 1 H7264 1 H7265 1 H7561 1 4 Door Latch Spring H1264 2 H1264 2 H1264 2 H1264 2

5 Log Set (Complete) H7839 1 H7666 1 H7667 1 H7840 1 6 Burner Assembly H7717 1 H7717 1 H7718 1 H7718 1 7 Oriﬁce, Main Burner - Natural Gas H4873 1 H7716 1 99K75 1 37L70 1 7 Oriﬁce, Main Burner - Propane Gas H7838 1 62L37 1 19L52 1 99K79 1 8 Bag of Glowing Embers (Rockwool) 88L53 1 88L53 1 88L53 1 88L53 1 8 Bag of Decorative Volcanic Stone 80L42 1 80L42 1 80L42 1 80L42 1

9 Oriﬁce Holder H7257 1 H7257 1 H7257 1 H7257 1 10 Gas Line Flexible Connector 93L32 1 93L32 1 93L32 1 93L32 1 11 Grate H7719 1 H7719 1 H7720 1 H7720 1 12 Sub-Floor H7558 1 H7450 1 H7462 1 H7741 1

Part No.

Qty. Part No. Qty. Part No. Qty. Part No. Qty.

H7262

H7263

Gas Controls - SIT Millivolt

Item

Description Natural Gas Propane Gas

No.

15 Gas Valve, SIT H6209 1 88J53 1 16 Piezo Igniter 10K86 1 10K86 1

--- Piezo Igniter Wire 56L21 1 56L21 1 17 Pilot Assembly 69L17 1 69L18 1 18 Pilot Generator 60J79 1 60J79 1 19 Thermocouple 74L57 1 74L57 1 20 Pilot Tube 74L56 1 74L56 1 21 Electrode and Cable H6212 1 H6212 1

Part No.

Qty. Part No. Qty.

1 H7557 1

Gas Controls - Dexen Electronic

Item

Description Natural Gas

No.

28 Gas Valve, Dexen H4681 1

29 Pilot Assembly H4673 1 30 Igniter Module H4674 1 31 Battery Holder H4675 1 32 Wire Harness H4676 1 33 Adapter H4677 1

Part No.

Qty.

WARNING: Failure to position the parts in accordance with the diagrams in this manual or failure to use only

parts speciﬁcally approved with this appliance, may result in property damage or personal injury.

Page 26

REPLACEMENT PARTS

Dexen Gas

Controls

SIT Gas

Controls

(Ref.)

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 27

NOTE: THIS PAGE INTENTIONALLY LEFT BLANK.

Page 28

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.

P/N 506017-01 REV. A 06/2009

Lennox Hearth Products

1110 West Taft Avenue • Orange, CA 92865