
2NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
These appliances are designed to operate on
naturalorpropanegasonly.Theuseofotherfuels
or combination of fuels will degrade the perfor-
mance of this system and may be dangerous.
OnMillivoltmodelstheinputoftheappliancecan
beadjustedbetween31,000and39,000BTU/HR
when using natural gas or propane gas.
On Electronic models the input is fixed at
39,000 BTU/HR for both gas types.
CONGRATULATIONS!
InselectingthisLENNOXDirect-VentGasApplianceyouhavechosenthefinestandmost
dependable fireplace to be found anywhere. Its a beautiful, prestigious alternative to a
woodburningfireplace. WelcometoaFamilyoftensofthousandsofsatisfiedLENNOX
Fireplace Owners.
Please carefully read and 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 Fireplace models covered in this manual
are Direct-Vent sealed combustion gas fire-
placeheatersdesignedforresidentialapplica-
tion. Direct-Vent appliances operate with the
combustionchambercompletelyisolatedfrom
the indoor environment. All air for combus-
tion is brought in from the outside and ex-
haust gases are vented through the same
direct vent, vent system.
GENERAL INFORMATION
Note: Installation and repair should be per-
formedbyaqualifiedserviceperson.Theappli-
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
airpassagewaysoftheappliancebekeptclean.
S'assurer que le brùleur et le compartiment
des commandes sont propres. Voir les in-
structions d'installation et d'utilisation qui
accompagnent l'appareil.
Provideadequateclearancesaroundairopen-
ings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.
Duetohightemperaturestheapplianceshould
be located out of traffic and away from furni-
ture and draperies. Locate furniture and win-
dow coverings accordingly.
The millivolt appliances are designed to oper-
ateoneithernaturalorpropanegas.Amillivolt
gas control valve with piezo ignition system
provides safe, efficient operation. If any op-
tional accessories which require electrical
powerarebeinginstalled,theelectricalpower
must be provided at the time of appliance
installation.
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.
Theseappliancescomplywith National Safety
Standardsandaretestedandlistedby(Report
No. 116-F-04-5) to ANSI Z21.88-2002 (in
Canada,CSA-2.33-2000),andCAN/CGA-2.17-
M91 in both USA and Canada, as vented gas
fireplace heaters.
Installation must conform to local codes. In
the absence of local codes, installation must
comply with the current National Fuel Gas
Code,ANSIZ223.1(NFPA54).(InCanada,the
currentCAN/CGAB149installationcode.) Elec-
tricalwiringmust complywithlocalcodes. In
the absence of local codes, installation must
be in accordance with the National Electrical
Code, NFPA 70 - (latest edition). (In Canada,
thecurrentCSAC22.1CanadianElectricCode.)
DO NOT ATTEMPT TO ALTER OR MODIFY
THE CONSTRUCTION OF THE APPLIANCE OR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY,
CERTIFICATIONANDLISTINGSOFTHISUNIT.
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
Front Glass Enclosure Panel,
Removal and Installation ............... page 4
Maintenance Schedule..................... page 5
Burner Adjustments......................... page 6
Flame Appearance and Sooting ....... page 6
Adjustment ...................................... page 6
Ceramic Panel, Log and
Glowing Ember Placement............. page 7
Millivolt Appliance Checkout............ page 7
Electronic Appliance Checkout......... page 8
Wiring Diagrams.............................. page 8
Warranty.......................................... page 8
Replacement Parts ........................... page 8
Product Reference Information ....... page 8
Accessory Components................... page 9
Lighting Instructions –Millivolt....... page 16
Lighting Instructions –Electronic.... page 18
Troubleshooting Guide –Millivolt ..... page 20
Troubleshooting Guide –Electronic .. page 21
Replacement Parts List..................... page 22
WARNING: THESE FIREPLACES ARE
VENTED HEATERS. DO NOT BURN
WOOD OR OTHER MATERIAL IN THESE
APPLIANCES.
WARNING: IMPROPERINSTALLATION,
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: ELECTRONIC MODELS OF
THESE APPLIANCES ARE EQUIPPED
WITH A THREE-PRONG (GROUNDING)
PLUG UTILIZED IN CONNECTING THE
ELECTRONIC COMPONENTS TO THE
JUNCTION BOX IN THE LOWER COM-
PARTMENT. THIS GROUNDING PLUG
PROVIDES PROTECTION AGAINST
SHOCK HAZARD AND SHOULD BE
PLUGGED DIRECTLY INTO THE PROP-
ERLY GROUNDED THREE-PRONG RE-
CEPTACLE. DO NOT CUT OR REMOVE
THE GROUNDING PRONG FROM THE
PLUG.