Lennox Hearth LSS-35CN, LSS-35CP, LSS-40CN, LSS-40CP page, page, page, page, page, page, page, page, page, page, page, page, page, page, page, page, page, page, page, page, page, Fuel, Fuel, Rear, Model, Front

CONGRATULATIONS!

In selecting this LENNOX Signature Series Direct-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.

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.

TABLE OF CONTENTS
Introduction .....................................	page	2
General Information .........................	page	2
Operation/Care of Your Appliance ....	page	3
RF Comfort Control Valve Operation page		3
Transmitter Operation ......................	page	4
Trouble shooting .............................	page	5
Glass Cleaning .................................	page	6
Maintenance ....................................	page	6
Maintenance Schedule .....................	page	7
Front Glass Enclosure Panel,
Removal and Installation ...............	page	8
Burner Adjustments .........................	page	8
Flame Appearance and Sooting .......	page	8
Adjustment ......................................	page	9
Vent Restrictor ................................	page	9
Log Placement .................................	page	10
Rockwool Placement .......................	page	10
Pilot Inspection ...............................	page	10
Warranty ..........................................	page	11
Replacement Parts ..........................	page	11
Product Reference Information .......	page	11
Accessory Components ...................	page	11
Replacement Parts List .....................	page	14

INTRODUCTION

The Fireplace models covered in this manual are Direct-Vent sealed combustion vented gas fireplace heaters designed for residential ap- plication. Direct-Vent appliances operate with the combustion 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.

These appliances feature a comfort control valve which allows remote control of tem- perature, fan and flame appearance. These appliances also use a spark ignitor (piezo) that allows the appliance's pilot gas to be lit without the use of matches. This system provides continued service in the event of a power outage.

The external electrical power (120v) is required to operate the provided circulating blower.

These appliances comply with National Safety Standards and are tested and listed by Omni- Test Laboratories (Report No. 116-F-02-5) to ANSI Z21.88-2002 (in Canada, CSA-2.33-2002), 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 openings 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.

Input of millivolt models is variable. These rates are shown in the following table:

		Maximum	Minimum
Model	Fuel	Input	Input
		(BTU/H)	(BTU/H)
LSS-35CN	Nat. Gas	33,000	23,500
LSS-35CP	LP Gas	31,000	23,500
LSS-40CN	Nat. Gas	41,500	28,400
LSS-40CP	LP Gas	39,000	30,700

The following table shows the units' orifice size fortheelevationsof0-4500feet(0-1370meters).

Model	Fuel	Rear	Front
		Burner	Burner
LSS-35CN	Nat. Gas	#44	#50
LSS-35CP	LP Gas	#55	#61
LSS-40CN	Nat. Gas	#42	#45
LSS-40CP	LP Gas	0.054"	#56

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