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Lennox Merit Plus Series - User Manual

Lennox Merit Plus Series
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MODELS
OTL Report No. 116-F-59-5
US
Portland
This appliance may be installed in an aftermarket permanently located, manufactured home (USA only) or mobile
home, where not prohibited by local codes. This appliance is only for use with the type of gas indicated on the rating
plate. This appliance is not convertible for use with other gases, unless a certified kit is used.
INSTALLATION INSTRUCTIONS
MPD Pro Direct-Vent
Gas Fireplaces
ELECTRONIC:
MPDP35IN
MPDP40IN
P/N 506015-06 Rev. NC 06/2012
This manual is one of a set of two supporting this product.
Refer to P/N 506017-05 for Care and Operation Instructions.
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 506223-39.
Please read and understand these instructions
before starting installation.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
INSTALLATEUR : Laissez cette notice avec l’appareil.
CONSOMMATEUR : Conservez cette notice pour
consultation ultérieure.
AVERTISSEMENT : Assurez-vous de bien suivre les
instructions données dans cette notice pour réduire au
minimum le risque d’incindie ou d’explosion ou pour
éviter tout dommage matériel, toute blessure ou la mort.
WARNING: If the information in these instructions
is not followed exactly, a fire or explosion may
result, causing property damage, personal injury,
or death.
WARNING
/
AVERTISSEMENT
/
AVISO
HOT GLASS WILL CAUSE
BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
UNE SURFACE VITRÉE CHAUDE
PEUT CAUSER DES BRÛLURES.
LAISSER REFROIDIR LA SURFACE
VITRÉE AVANT D'Y TOUCHER.
NE PERMETTEZ JAMAIS À UN ENFANT
DE TOUCHER LA SURFACE VITRÉE.
EL VIDRIO CALIENTE
CAUSARÁ QUEMADURAS.
USTED DEBE NUNCA
TOCAR EL VIDRIO CALIENTE.
LOS NIÑOS DEBEN NUNCA
TOCAR EL VIDRIO.
- Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
- WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch; do not use any
phone in your building.
Immediately call your gas supplier from a
neighbor’s phone. Follow the gas suppliers
instructions.
If you cannot reach your gas supplier, call the fire
department.
- Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
- Ne pas entreposer ni utilizer d’essence ni d’autres vapeurs
ou liquides inflammables dans le voisinage de cet appareil
ou de tout autre appareil.
- QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
Ne pas tenter d’allumer d’appareil.
Ne touchez à aucan interrupteur. Ne pas vous servir des
téléphones se trouvant dans le bâtiment où vous trouvez.
Appelez immédiatement votre fournisseur de gaz depuis
un voisin. Suivez les instructions du fournisseur.
Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service des incindies.
- L’installation et l’entretien doivent être assurés par un
installateur ou un service d’entretien qualifié ou par le
fournisseur de gaz.
MPDP35IP
MPDP40IP

Questions and Answers

  • L
    Lisa WebbAug 11, 2025
    What to do if Lennox Indoor Fireplace won't turn on?
    • R
      Ronald KimAug 11, 2025
      If your Lennox Indoor Fireplace isn't turning on, there are several things you can check. First, if you're using a remote, make sure the wall switch plate is set to 'remote'. Try operating the fireplace from the wall plate switch. Replace the batteries in the remote and/or receiver. Also, check the gas supply and gas shutoff valves to ensure gas is reaching the fireplace. Finally, check or replace the back-up batteries behind the wall plate and verify that the building circuit breakers are on.
  • M
    mary59Aug 20, 2025
    Why does my Lennox Indoor Fireplace burner turn on then off?
    • T
      Thomas KruegerAug 20, 2025
      If the main burner of your Lennox Indoor Fireplace comes on but then goes out, check the gas supply and gas shutoff valves to ensure gas is reaching the fireplace. Inspect the control compartment for any obvious loose wiring to the valve or ignition module. If these steps don't resolve the issue, a service technician should be called to check the pilot flame and vent system.
  • T
    Timothy FlemingAug 31, 2025
    What to do if Lennox Merit Plus igniter sparks but burner won't light?
    • P
      Paul BakerAug 31, 2025
      If the igniter is sparking but the main burner of your Lennox Indoor Fireplace won't light, start by checking the gas supply and gas shutoff valves. Inspect the control compartment for any loose wiring to the valve or ignition module. If there's still no ignition, it is possible that there is air in the gas line.

Lennox Merit Plus Series Specifications

General IconGeneral
CategoryIndoor Fireplace
SeriesMerit Plus Series
Fuel TypeNatural Gas or Propane
VentingDirect Vent
IgnitionElectronic Ignition
Dimensions (H x W x D)Varies by model
WeightVaries by model
TypeGas Fireplace
EfficiencyUp to 70% AFUE

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