LG Electronics MPB3328CNE manual Congratulations, Table of Contents

CONGRATULATIONS!

In selecting this Lennox B-Vent Gas Appliance you have chosen the finest and most dependable fireplace to be found anywhere. 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 Homeowner's Care and Operation Instructions included here will assure that you have many years of dependable and enjoyable service from your Lennox product.

WARNING

These fireplaces are vented deco- rative gas appliances. Do not burn wood or other material in these appliances.

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

Input of millivolt models is variable. These rates are shown in Table 1:

2

TABLE OF CONTENTS
Introduction	Page	2
General Information	Page	2
Operation/Care of Your Appliance	Page	3
Variable Flame Adjustment	Page	4
Outside Combustion Air Control	Page	5
Manual Limit Switch	Page	5
Maintenance Schedule	Page	6
Maintenance	Page	7
Front Glass Enclosure Panel,
Removal and Installation	Page	7
Burner Adjustments	Page	8
Millivolt Appliance Checkout	Page	8
Electronic Appliance Checkout	Page	8
Logs, Rockwool, Vermiculite &
Volcanic Stone Placement	Page	9
Wiring Diagrams	Page 14
Warranty	Page 14
Replacement Parts	Page 14
Product Reference Information	Page	14
Accessory Components	Page 15
Lighting Instructions – Millivolt	Page	18
Lighting Instructions – Electronic	Page	20
Troubleshooting Guide – Millivolt	Page	22
Troubleshooting Guide – Electronic ..	Page	22
Replacement Parts List	Page	24

INTRODUCTION

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.

The electronic appliances are designed to operate on either natural or propane gas. An electronic intermittent pilot system provides safe, efficient operation. External electrical power is required to operate these units.

These appliances comply with National Safety Standards and are tested and listed by OMNI- Test Laboratories, Inc. (Report No. 116-F-__-__) to ANSI Z21.50 (in Canada, CSA 2.22), and CAN/CGA-2.17-M91 in both USA and Canada, as vented gas fireplaces.

Installation must conform to local codes. In the absence of local codes, installation must comply with the current National Fuel Gas Code, ANSI Z223.1 (NFPA 54). (In Canada, the current CAN/CGA B149 installation code). Electrical wiring must comply with local codes. In the absence of local codes, installation must be in accordance with the National Electrical Code, NFPA 70 - (latest edition). (In Canada, the current CSA C22.1 Canadian Electric Code).

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 assistanceoradditionalinformation consult a qualified installer, service agency or the gas supplier.

GENERAL INFORMATION

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 the appliance be kept clean.

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.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Millivolt Models with

Manually-Modulated Gas Valve

	Natural Gas	Propane Gas
Model	Input Rate	Input Rate
	(BTU/HR)	(BTU/HR)
MPB3328	13,500 to 17,500	13,500 to 17,500
MPB3530	16,000 to 20,000	16,500 to 20,000
MPB4035	24,000 to 30,000	22,300 to 28,000
MPB4540	24,750 to 31,000	23,000 to 29,000

Table 1

Electronic Models -

Electronic models have a fixed rate gas valve. Input of electronic models is shown in Table 2:

Electronic Models with

Fixed-Rate Gas Valve

	Natural Gas	Propane Gas
Model	Input Rate	Input Rate
	(BTU/HR)	(BTU/HR)
MPB3328	17,500	17,500
MPB3530	20,000	20,000
MPB4035	30,000	28,000
MPB4540	31,000	29,000
Table 2

Table 3 shows the units' orifice size for the elevations indicated.

Burner Orifice Sizes

Elevation 0-4500 feet ( 0-1372 meters)

Models	NaturalGas	Propane Gas
	drill size (inches)	drill size (inches)
MPB-3328	#47 (.0785")	1.2mm (.048")
MPB-3530	#44 (.086")	#55 (.052")
MPB-4035	#37 (.104")	1/16" (.0625")
MPB-4540	#36 (.1065")	#52 (.0635")

Table 3

Maximum manifold pressure is 3.5 in. w.c. (0.87 kPa) for natural gas and 10 in. w.c. (2.49 kPa) for LP/Propane gas.

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