Lennox Hearth MP54-VDLE, MN04-VDLE, MP53-VDLE, EN54-VDLE, MN53-VDLE, MP04-VDLE manual Table of Contents

Congratulations!

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

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

General Information

Note: Installation and repair should be per- formed 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 the appliance be kept clean.

TABLE OF CONTENTS
Introduction	page	2
General Information	page	2
Operation/Care of Your Appliance	page	3
Variable Flame Adjustment	page	4
Glass Cleaning	page	4
Maintenance	page	4
Maintenance Schedule	page	5
Front Glass Enclosure Panel,
Removal and Installation	page	6
Burner Adjustments	page	6
Flame Appearance and Sooting	page	6
Adjustment	page	6
Log Placement	page	7
Embers & Volcanic Stone Placement	page	8
Millivolt Appliance Checkout	page	8
Electronic Appliance Checkout	page	8
Accessory Components	page	8
Wiring Diagrams	page	11
Warranty	page	11
Replacement Parts	page	11
Product Reference Information	page	11
Lighting Instructions – Millivolt	page	12
Lighting Instructions – Electronic	page	14
Troubleshooting Guide – Millivolt	page	16
Troubleshooting Guide – Electronic	page	17
Replacement Parts List	page	18

This manual is part of a set of three supporting this product. Refer to manual 850,036M for Installation Instructions and 750,201M for Log Placement Guide.

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 com- bustion chamber completely isolated from the inside atmosphere. All air for combustion is brought in from the outside and exhaust gases are vented through the same direct vent, vent system.

The millivolt appliances are designed to operate on either natural or propane gas. A millivolt gas control valve with piezo ignition system provides safe, efficient operation. External electrical power is required to operate the optional electrically powered components if installed. Electrical power must be wired during appliance installation.

Electronic appliances are designed to operate on natural or propane gas. An electronic intermit- tent pilot ignition system provides safe, efficient operation. External electrical power is recom- mended to operate these units. If the system operates on line voltage with 3V adapters, two

(2)"D" batteries can be used as a backup in case of a power outage. The electronic appliance can be operated solely with two (2) "D batteries.

These appliances comply with National Safety Standards and are tested and listed by Omni- Test Laboratories (Report No. 116-F-39-5) to ANSI Z21.88 (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, or the Natural Gas and Propane Installation Code, CSA B149.1. The appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1.

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.

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.

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.

Warning: THEse FIREPLACES ARE

VENTED Heaters. DO NOT BURN

WOOD OR OTHER MATERIAL IN THESE

APPLIANCES.

These appliances are designed to operate on natural or propane gas only.

Millivolt Models -

Input of millivolt models is shown in the fol- lowing table:

Millivolt Models with

Manually-Modulated Gas Valve

Natural Gas		Propane Gas
	Input		Input
Model No.	rate	Model No.	rate
	(BTU/H)		(BTU/H)
	27,000		26,000
ELDV35	to	ELDV35	to
	21,000		20,000
	29,000		27,000
ELDV40	to	ELDV40	to
	23,000		22,000
	30,000		28,000
ELDV45	to	ELDV45	to
	23,000		21,000

Electronic Models -

Electronic models have a modulating gas valve. Input of electronic models is shown in the following table:

Electronic Models with Natural Gas Valve

Model No.	Input rate (BTU/H)
ELDV35	27,000 to 21,000
ELDV40	29,000 to 23,000
ELDV45	30,000 to 23,000