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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
TABLE OF CONTENTS
Introduction ..................................... page 2
General Information......................... page 2
Operation/Care of Your Appliance.... page 3
Damper & Combustion Air Controls page 4
Manual Limit Switch ........................ page 5
Maintenance .................................... page 5
Burner Adjustments......................... page 5
Flame Appearance and Sooting ....... page 5
Maintenance Schedule..................... page 6
Adjustment ...................................... page 7
Millivolt Appliance Checkout............ page 7
Electronic Appliance Checkout......... page 7
Log and Rockwool Placement ......... page 7
Wiring Diagrams.............................. page 9
Warranty.......................................... page 9
Product Reference Information ....... page 9
Replacement Parts .......................... page 9
Lighting Instructions – Millivolt ....... page 10
Lighting Instructions – Electronic.... page 12
Troubleshooting Guide – Millivolt ..... page 14
Troubleshooting Guide – Electronic .. page 15
Accessory Components ................... page 16
Replacement Parts List ..................... page 17
These appliances are designed to operate on
natural or propane gas only. The use of other
fuels or combination of fuels will degrade the
performance of this system and may be dan-
gerous.
Input of appliances are 45,000 and 50,000 BTU/
HR for LBV-3824 and LBV-4324 respectively.
CONGRATULATIONS!
In selecting this LENNOX B-vented 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.
INTRODUCTION
The millivolt appliances are designed to oper-
ate on either natural or propane gas. A millivolt
gas control valve with piezo ignition system
provides safe, efficient operation.
The electronic appliances are designed to op-
erate on either natural or propane gas. An
electronic intermittent pilot system provides
safe, efficient operation. External electrical
power is required to operate these units.
GENERAL INFORMATION
Note: Installation and repair should be per-
formed by a qualified service person. The appli-
ance should be inspected annually by a quali-
fied professional service technician. More fre-
quent inspections and cleanings may be re-
quired 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 in-
structions d'installation et d'utilisation qui
accompagnent l'apareil.
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 furni-
ture and draperies. Locate furniture and win-
dow coverings accordingly.
Nominal operating pressures for the manifold
side of the gas control system are; 3.5 inches
water column (6.54 MmHg) for natural gas
models and 10 inches water column (18.69
MmHg) for propane gas models.
Do not use these appliances if any part has
been under water. Immediately call a qualified,
professional service technician to inspect the
appliance and to replace any parts of the
control system and any gas control which
have been under water.
Ne pas se servir de cet appareil s'il a été plongé
dans l'eau, complètement ou en partie. Appeler
un technicien qualifié pour inspecter l'appareil
et remplacer toute partie du système de contrôle
et toute commande qui ont été plongés dans
l'lau.
Millivolt appliances may be fitted at time of
manufacture with either a Honeywell millivolt
gas control valve or as SIT millivolt gas control
valve. Both valves have been tested with and
approved for use with these appliances and
are listed accordingly.
Gas Orifice Size
Type Elevation
0 - 4500'
(0 - 1370 m)
0 - 4500'
(0 - 1370 m)
Natural
Propane
#30
#47
#48
0.125
in.
LBV-3824
LBV-4324
These appliances comply with National Safety
Standards and are tested and listed by Omni-
Test Laboratories (Report No. 116-F-18-5) to
ANSI Z21.50b-2002 (in Canada, CSA-2.22b-
2002), 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.) Elec-
trical 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 ASSISTANCE OR
ADDITIONAL INFORMATION CONSULT
A QUALIFIED INSTALLER, SERVICE
AGENCY OR THE GAS SUPPLIER.
WARNING: THESE FIREPLACES ARE
VENTED DECORATIVE GAS APPLI-
ANCES. DO NOT BURN WOOD OR OTHER
MATERIAL IN THESE APPLIANCES.