Lennox Signature Montebello DLX Series Installation Instructions Download Page 1

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

INSTALLATION INSTRUCTIONS FOR GAS CONVERSION KITS 

FOR USE WITH MONTEBELLO

®

 DLX DIRECT-VENT GAS FIREPLACES

[FIREPLACE MODELS MDLX40, MDLX45]

P/N 506019-99  
Rev. NC   06/2012

HEARTH PRODUCTS

KITS AND ACCESSORIES

GAS CONVERSION KITS

 CAUTION

RISK OF PERSONAL INJURY OR PROPERTY DAMAGE. 

• Never operate fireplace without liner panels installed.
• These appliances are NOT approved for operation without 

liner panels. 

• Do NOT abuse glass doors by striking or slamming shut.
• Never operate fireplace with glass door assembly removed.
• Handle glass door assembly with extreme care. Replace 

damaged glass door assembly with approved replacement 

assembly only.

• Use only media approved for use with these fireplaces (as 

applicable). Failure to use approved media may result in sooting, 

delayed ignition, or other improper fireplace operation, and may 

void the warranty.

 

WARNING

HOT GLASS WILL CAUSE BURNS. 

DO NOT TOUCH GLASS UNTIL COOLED. 

NEVER ALLOW CHILDREN TO TOUCH GLASS.

• Install only when fireplace is OFF and COLD.

• Fireplace surfaces get EXTREMELY HOT!
• The glass on the front of the fireplace reaches EXTREMELY HIGH 

temperatures and can cause severe burns if touched. Even after 

the gas is turned off, fireplace surfaces remain extremely hot.

• Keep children away from an operating fireplace. Closely 

supervise children in any room where a fireplace is operating to 

prevent contact with glass. 

NOTICE

• READ ALL STEPS BEFORE STARTING INSTALLATION. 
• LEAVE THESE INSTRUCTIONS WITH THE APPLIANCE.
• All warnings, precautions, and instructions in the Installation 

Instructions and Care and Operation Instructions provided with the 

appliance also apply to these instructions.

• If you encounter any problems, need clarification of these 

instructions, or are not qualified to properly install this kit, contact 

your local distributor or dealer.

1

 AVERTISSEMENT

Cette trousse de conversion doit être installée 

par un technicien agréé, selon les instructions 

du fabricant et selon toutes les exigences et tous 

les codes pertinents de l’autorité compétente. 

Assurez-vous de bien suivre les instructions 

dans cette notice pour réduire au minimum le 

risque d’incendie, d’explosion ou la production 

de monoxyde de carbone pouvant causer des 

dommages matériels, des blessures ou la mort. Le 

tecnicien agréé est responsable de l’installation 

de cette trousse. L’installation n’est pas adéquate 

ni complète tant que le bon fonctionnement de 

l’appareil converti n’a pas été vérifié selon les 

instructions du fabricant fournies avec la trousse. 

Le fournisseur de service qualifié ayant réalisé 

l'installation assume les responsabilités liées à 

la conversion.

 WARNING

This conversion kit shall be installed by a 

qualified service agency in accordance with the 

manufacturer’s instructions and all applicable 

codes and requirements of the authority having 

jurisdiction. If the information in these instruction 

is not followed exactly, a fire, explosion or 

production of carbon monoxide may result causing 

property damage, personal injury or loss of life. 

The qualified service agency is responsible for 

the proper installation of this kit. The installation 

is not proper and complete until the operation of 

the converted appliance is checked as specified 

in the manufacturer’s instructions supplied with 

the kit.The qualified service agency performing 

this installation assumes responsibility for 

this conversion.

Summary of Contents for Signature Montebello DLX Series

Page 1: ...ation Instructions provided with the appliance also apply to these instructions If you encounter any problems need clarification of these instructions or are not qualified to properly install this kit contact your local distributor or dealer 1 AVERTISSEMENT Cette trousse de conversion doit être installée par un technicien agréé selon les instructions du fabricant et selon toutes les exigences et t...

Page 2: ... Fireplace Model No Conversion Kit Model No Conversion Kit Cat No MDLX40IP GCK MDLX40PN H8670 MDLX45IP GCK MDLX45PN H8671 Table 3 Propane Gas to Natural Gas Conversion Kits NOTE For contemporary LP burner setups use the orifice and conversion label shipped with the burner kit Before Installing the Kit Step 1 Turn off the gas supply to the appliance and disconnect the power supply at the circuit br...

Page 3: ...ly seen Step 8 Make stepper motor pressure regulator and valve electrical connections Step 9 Refer to Figure 3 and remove the pilot hood assembly to access the hex head pilot orifice Pull up sharply on the pilot hood to remove it NOTE Use care to avoid damaging the igniter assembly The pilot hood is secured with a spring clip do not remove this spring clip Pilot Orifice Pilot Hood Figure 3 Pilot O...

Page 4: ... label provided in the conversion kit to the rating plate on the appliance Step 5 The BTU input for these appliances is shown in Table 7 Model No Input BTU Hr Natural Gas MDLX40IN 32 000 to 50 000 MDLX45IN 38 500 to 60 000 Propane Gas MDLX40IP 32 000 to 50 000 MDLX45IP 38 500 to 60 000 Table 7 Input BTU HrR Testing Step 1 Reconnect the power supply at the circuit breaker Step 2 Return gas to the s...

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