Lennox Hearth LSM40ST-N-PV Safety and Your Fireplace, • Free Safety Guard Offer •

(Lennox Hearth Products / Owner Resources)

LENNOX HEARTH PRODUCTS • MONTEBELLO® SEE-THROUGH POWER VENT DV GAS FIREPLACES (LSM40ST-N-PV) • CARE AND OPERATION INSTRUCTIONS

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Thank you for your purchase. We appreciate your business! Please carefully read and follow all instructions in this manual.

Pay special attention to all warnings and safety information.

Following these safety, care, and operation instructions will help ensure many years of dependable and enjoyable service from your fireplace.

• FREE SAFETY GUARD OFFER •

The Lennox® SAFETY GUARD protects against

severe burns and injuries by preventing direct contact

with the front glass surface of your fireplace.

To receive your FREE SAFETY GUARD, call 1-800-786-7976 or visit www.lennox.com

TABLE OF CONTENTS

Safety and Your Fireplace . . . . . . . . . . . . . . . . 2 Important Safety Information . . . . . . . . . . . . . . . 4 Attaching the Safety-in-Operation Warnings . . . . . . . . . 5 Appliance Installation, Service, and Maintenance Notices. . . . . . 6 Appliance Operation Notices . . . . . . . . . . . . . . . . . 6 Warranty Information. . . . . . . . . . . . . . . . . . . . 6 General Information . . . . . . . . . . . . . . . . . . . 7

Inputs and Efficiencies. . . . . . . . . . . . . . . . . . 7 Gas Pressure Requirements. . . . . . . . . . . . . . . . 7 Orifice Sizes. . . . . . . . . . . . . . . . . . . . . . 7 Burn-In Period. . . . . . . . . . . . . . . . . . . . . 7 Operation and Care of Your Appliance. . . . . . . . . . . . . 8 Appliance Operation. . . . . . . . . . . . . . . . . . . 8 Gas Controls . . . . . . . . . . . . . . . . . . . . . . 8 Remote Control System. . . . . . . . . . . . . . . . . . 9 Maintenance. . . . . . . . . . . . . . . . . . . . . . . 11

Removal/Installation of Glass Doors, Mesh Pull Screens, and Modesty Panel . . . . . . . . . . . . . . . . . . . . 12

Placement of Volcanic Stone, Glowing Embers, and Logs. . . . . . 13 Burner Adjustments. . . . . . . . . . . . . . . . . . . . 16 Flame Appearance and Sooting. . . . . . . . . . . . . . 16 Burner Air Shutter Adjustment Guidelines. . . . . . . . . . 16 Burner Air Shutter Adjustment Procedure. . . . . . . . . . 16 Electronic Appliance Checkout. . . . . . . . . . . . . . . . 16 Ordering Replacement Parts . . . . . . . . . . . . . . . . 17 Product Reference Information. . . . . . . . . . . . . . . 17 Wiring Diagram. . . . . . . . . . . . . . . . . . . . . 17 Accessory Components. . . . . . . . . . . . . . . . . . 18 Operating (Lighting) Instructions . . . . . . . . . . . . . . 20 Maintenance Schedule. . . . . . . . . . . . . . . . . . . 22 Troubleshooting Guide: Electronic Gas Control System. . . . . . 23 Troubleshooting Guide: Power Vent System . . . . . . . . . . 24 Replacement Parts List . . . . . . . . . . . . . . . . . . 25 Power Vent Replacement Parts . . . . . . . . . . . . . . . . 27

Safety and

Your Fireplace

All parts of your Lennox Hearth Products fireplace get EXTREMELY HOT!

To prevent severe burns and injuries, install a screen or physical barrier to prevent direct contact with the glass.

To order a FREE Lennox® SAFETY GUARD for your fireplace, see details at left.

Follow the safety instructions below and be sure everyone in your household understands this burn hazard:

•The surfaces on your fireplace get

EXTREMELY HOT!

•The glass on the front of the fireplace reaches

EXTREMELY HIGH temperatures and can

cause severe burns if touched.

•Keep children away from an operating fireplace. Closely supervise children in any room where a fireplace is operating to prevent contact with glass.

•Keep clothing, furniture, gasoline, and other flammable liquids away from the fireplace.

•Even after the gas is turned off, fireplace surfaces remain extremely hot.

Be sure to attach the enclosed Safety-in- Operation Warnings where you turn on your fireplace, to help remind everyone of the dangers associated with high temperatures (see Page 5).

Read Important Safety Information on Page 4.