Lennox MLDVT-30NM Care And Operation Instructions Manual
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Lennox MLDVT-30NM Care And Operation Instructions Manual

Lennox MLDVT-30NM Care And Operation Instructions Manual

Mldvt-30/35/40/45 series vented gas fireplace heaters - direct vent models
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See also: Instruction and Installation Manual , Care and Operation Instructions Manual
Enlarged version
• 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 appli-
ance. 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.
Portland
US
WarninG: iF tHe inForMation in tHis ManuaL
is not FoLLoWed eXactLY, a Fire or eXpLo-
sion 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:
• 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.
WarninGs
otL report no. 116-F-57-5

care and operation

instructions

DIRECT VENT

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.
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 báti-
ment 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
Electronic Models
MLdVt-30ne
MLdVt-35ne
MLdVt-40ne
MLdVt-45ne

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Summary of Contents for Lennox MLDVT-30NM

  • Page 1: Care And Operation

    • carefully supervise children in the Millivolt Models Electronic Models same room as appliance. MLdVt-30nM MLdVt-30ne • if small children are present in the home, it is MLdVt-30pM MLdVt-35ne recommended that this appliance be fitted with...

  • Page 2: Table Of Contents

    GeneraL inForMation Note: Installation and repair should be per- In selecting this LENNOX Direct-Vent Gas Appliance you have chosen the finest and most formed by a qualified service person. The dependable fireplace to be found anywhere. Its a beautiful, prestigious alternative to a appliance should be inspected annually by wood burning fireplace. Welcome to a Family of tens of thousands of satisfied LENNOX a qualified professional service technician. Fireplace Owners. More frequent inspections and cleanings may be required due to excessive lint from Please carefully read and follow all of the instructions found in this manual. Please...
  • Page 3 Do not use these appliances if any part has carbon Monoxide poisoning: early signs input (Btu) Manually-Modulated been under water. Immediately call a qualified, of carbon monoxide poisoning are similar Gas Valves (all models) professional service technician to inspect the to the flu with headaches, dizziness and/or naturaL Gas appliance and to replace any parts of the con- nausea. if you have these signs, obtain fresh trol system and any gas control which have air immediately.

  • Page 4: Gas Controls Access

    Operation of millivolt and electronic gas con- deration - At higher elevations, the amount of BTU fuel value delivered must be reduced trol systems are different. Before lighting and by either using gas that has been derated by operating your appliance determine if you have the gas company or by changing the burner a millivolt or electronic appliance. Familiarize yourself with the gas control valve that your orifice to a smaller size as regulated by the local authorities having jurisdiction and by the (USA) appliance uses. Refer to Figure 1 for access National Fuel Gas Code NFPA 54/ANSI Z223.1 to the gas control valve. - latest edition or, in Canada, the CAN/CSA- B149.1 - latest edition. Millivolt appliances - Appliances with Millivolt systems will be fitted with the gas Burn-in period control valve shown in Figure 3.

  • Page 5: Variable Flame Adjustment

    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 3 inch optional remote wall switch or remote control kit pipe nipple Gas Flex Line Valve the appliance main burner may be turned on and...

  • Page 6: Maintenance

    2. During the first initial burns of these appli- Before re-lighting the fireplace, refer to the It is recommended that the glass be cleaned ances, there will be some odor emitted (refer lighting instructions in this manual. instruc- two or three times during each heating season, to Burn-In Period on page 4). tions are also found on pull-out panels depending on the circumstances present. The located below the glass door in the control following cleaning solutions are approved for use to clean glass: 3. Keep the lower control compartment clean compartment.

  • Page 7: Front Glass Enclosure Panel, Removal And Installation

    Only use factory supplied as a complete unit as provided by channel above the door. The clips are equally powdercoat paint kit for touch-ups. Paint is available at your local authorized Lennox the manufacturer. do not attempt spaced on the top surface of the air channel opening. Use a screwdriver to open the clips Hearth Products dealer. Never attempt to to replace broken, cracked or slightly if needed. Engage the back edge of the...

  • Page 8: Embers And Logs

    instaLL VoLcanic stone, GLoWinG 3. Place the right front log (3) as shown. Posi- Figure 7 Glowing Embers tion it against the right front of the log rack. eMBers and LoGs 4. Place the left cross log (4) as shown. Posi- Separate into Quarter Size (separate) Pieces NOTE: Turn off all electricity to the appliance tion it over the rear log (1), with the front of before you install volcanic stone, embers the log resting over log (2). and logs. 5. Place the right cross log (5) as shown.
  • 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) number description Rear Log Left Front Log Right Front Log Left Cross Log Right Cross Log catalog number for the entire log set: MLdVt-30: H7???
  • 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) number description Rear Log Left Front Log Right Front Log Left Cross Log Right Cross Log catalog number for the entire log set: MLdVt-40: H7667...
  • Page 11 notes:...

  • Page 12: Burner Flame Appearance/Sooting

    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- Figure 10 - Burner Flame appearance Model MLdVt-30 & MLdVt-35 ing is caused by incomplete combustion in the flames and lack of combustion air entering the air shutter opening. To achieve a warm yellow- ish-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...

  • Page 13: Burner Flame Adjustments

    Burner air shutter adjustment procedure caution: carbon will be pro- sit MiLLiVoLt piLot asseMBLY duced if the air shutter is closed proper pilot Flame appearance 1. Locate adjustment rod and adjust air shutter igniter rod too much. any damage due to Hood to the standard setting as shown in Figure carboning resulting from improp- 12 (adjustment rod is located in the lower control compartment).

  • Page 14: Product Reference Information

    We recommend that you record the following dealer, distributor, or Lennox directly: important information about your fireplace. When ordering repair parts, always give the Please contact your Lennox distributor or following information: LennoX HeartH products dealer for any questions or concerns. For the 1. The model number of the appliance. 1110 West taft avenue number of your nearest Lennox dealer, please 2. The serial number of the appliance.

  • Page 15: Accessory Components

    Cat. Model Ship. Ship. Weight Volumn 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.
  • Page 16 accessorY coMponents continued screen panel Kits pull screen panel Kit cat. no. Model no. Models Where used This easy to install optional decorative screen kit H6112 psFpKM30 MLdVt-30 installs over the standard glass enclosure panel. H6113 psFpKM35 MLdVt-35 These screen kits cannot be used in conjunction with the arch door kits or door frame kits. H6114 psFpKM40 MLdVt-40...
  • Page 17 accessorY coMponents continued touch-up paint Kit White Wall switch Kit Forced air Blower Kits Repair of minor scratches and discoloration of the cat. no. Model no. description appliance black painted surfaces may be accomplished cat. Model no. description with the touch-up paint kit. 85L87 FWsK oFF/on Wall switch Kit 80L84 FBK-100 Blower, standard touch-up paint Kits oFF/on Wall switch Kit (single speed) (all models) 80L85...

  • Page 18: Lighting Instructions - Millivolt

    LiGHtinG instructions – MiLLiVoLt Gas VaLVe 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 • Do not use any phone in your building. igniter. When lighting the pilot, follow these instructions • Immediately call your gas supplier from a neighbor’s exactly.
  • Page 19 instructions d’aLLuMaGe – Vanne GaZ MiLLiVoLt 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. • Appelez immédiatement votre compagnie de gaz en utilisant le télé- a. Cet appareil est muni d’une veilleuse qui doit être allumée avec un phone du voisin.

  • Page 20: Lighting Instructions - Electronic

    LiGHtinG instructions — eLectronic 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. • Do not use any phone in your building. a. When lighting the appliance, follow these instructions exactly. • Immediately call your gas supplier from a neighbor’s phone.
  • Page 21 instructions d’aLLuMaGe — eLectronic 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- • Ne touchez à aucun commutateur électrique.

  • Page 22: Maintenance Schedule

    Maintenance scHeduLe annually (Before the onset of the Burning Season) Maintenance tasK accoMpLisHinG person procedure Inspecting/Cleaning Burner, Logs Qualified Service Technician Inspect valve and ensure it is properly operating. Check piping and Controls for leaks. Vacuum the control compartment, fireplace logs and burner area. Check Flame Patterns and Flame Qualified Service Technician Refer to Figure 10 (MLDVT-35), Figure 11 (MLDVT-40) on page Height 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). Inspecting/Cleaning Pilot and Burner Qualified Service Technician Refer to 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.

  • Page 23: Troubleshooting Guide - Millivolt

    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...

  • Page 24: Troubleshooting Guide - Electronic

    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...

  • Page 25: Replacement Parts List

    repLaceMent parts List item description MLdVt-30 MLdVt-35 MLdVt-40 MLdVt-45 part no. Qty. part no. Qty. part no. Qty. part no. Qty. Hood H7568 H7266 H7267 H7569 Lower control compartment panel H7556 H7262 H7263 H7557 enclosure, Glass Front (complete) H7560 H7264 H7265 H7561 door Latch spring...

  • Page 26: Replacement Parts

    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. Printed in U.S.A. © 2009 by Lennox Hearth Products Lennox Hearth products 1110 West Taft Avenue • Orange, CA 92865 p/n 506017-01 reV. a 06/2009...

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