Lennox Hearth LSM40ST-P Maintenance Schedule, Do not touch or attempt to clean glass while hot

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LENNOX HEARTH PRODUCTS • MONTEBELLO® SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • CARE AND OPERATION INSTRUCTIONS

Maintenance Schedule

WARNING: BURN HAZARD.

Turn OFF gas and electrical power to the fireplace, and allow it to cool before cleaning or servicing the appliance.

Annually (before onset of burning season)

MAINTENANCE TASK

ACCOMPLISHING PERSON

PROCEDURE

 

 

 

Inspect/Clean Burner, Logs,

Qualified Service Technician

Inspect valve and ensure it is properly operating. Check piping for

and Controls

 

leaks. Vacuum the control compartment, fireplace logs and burner area.

 

 

 

Check Flame Patterns and Flame Height

Qualified Service Technician

Refer to Figures 20 and 21 on Page 16 and verify the flame pattern and

 

 

height displayed by the appliance conform to the illustration. Flames must

 

 

not impinge on the logs. Ensure flames are steady (not lifting or floating).

 

 

 

Inspect/Clean Pilot and Burner

Qualified Service Technician

Refer to Figure 22 on Page 17. Remove any surface build-up on pilot

 

 

and burner assembly. Wipe the pilot nozzles, igniter/flame rod and hood.

 

 

Ensure the pilot flame engulfs the flame sensor as shown.

 

 

 

Check Vent System

Qualified Service Technician

Inspect the vent system at the top and at the base (within the firebox) for

 

 

signs of blockage or obstruction. Look for any signs of dislocation or

 

 

deterioration of the vent components (reconnect or replace as necessary).

 

 

 

Appliance Checkout

Qualified Service Technician

Perform the appropriate appliance checkout procedure detailed in this

 

 

manual.

 

 

 

Replace Glowing Embers

Homeowner/Qualified Service

Remove old ember materials and vacuum the ember placement area.

 

Technician

Place new embers per instructions on Page 13.

 

 

 

Periodically (after burning season)

 

 

 

 

 

MAINTENANCE TASK

ACCOMPLISHING PERSON

PROCEDURE

 

 

 

Clean Firebox Interior

Homeowner

Carefully remove logs, rockwool and volcanic stone. Vacuum out interior

 

 

of the firebox. Clean firebox walls and log grate. Replace logs, rockwool

 

 

and volcanic stone as detailed in this manual.

 

 

 

Check Flame Patterns and Flame Height

Homeowner

Refer to Figures 20 and 21 on Page 16 and verify the flame pattern

 

 

and height displayed by the appliance conforms to the picture. Flames

 

 

must not impinge on the logs.

 

 

 

Clean Front Glass Enclosure Panel

Homeowner

Clean as necessary following the directions provided in this manual.

 

 

Do not touch or attempt to clean glass while hot.

 

 

 

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Contents 506025-05 Rev. C 05/2011 Important Safety InformationSafety Your Fireplace Spanish Seguridad y su chimenea Et toute commande qui a été plongée dans l’eau Important Safety InformationLennox Attaching Safety-in-Operation WarningsColocación de advertencias de seguridad en operación Appliance Operation Notices Appliance Installation Service, and MaintenanceWarranty Information Burn-in Period Inputs and EfficienciesInputs Orifice Sizes Sea Level to High Altitude All ModelsIs OFF Gas Controls / Control Compartment AccessON/OFF Switch Switches from Operation and care of your applianceRemote Control System Key Lock Intermittent/Standing Pilot ModeSlider Switch Remote Position Room Temperature Flame On Maximum Level IndicatiorsClean Logs and Burner See Maintenance Schedule,Glass Cleaning Clean Control CompartmentSee Figure Install only when fireplace is OFF and ColdHot Glass will Cause Burns Removing Glass Doors, Mesh Pull Screens, and Modesty PanelControl Side Top view of burner shown IMPORTANT! Ember pieces must be As Small and Thin as a dimeBag of Glowing Embers Control SideLog, Top Front Install logs reference and TableLog, Center Log, Top Right Log, Top LeftGroove Location PinBurner Flame Appearance Control Side Burner AdjustmentsBurner Air Shutter Adjustment Guidelines Flame Appearance and SootingElectronic Appliance Checkout Pilot AssemblyWiring Diagram Ordering Replacement partsBag of Glowing Embers Bag of Volcanic Stone Accessory ComponentsAndiron Kits Ceramic and Porcelain Panel Kits Barrier Screen Kits Outdoor Kit Arch Screen Kits Classic Screen KitsBe performed Slide the switch on the receiver to OFFInstructions D’ALLUMAGE Do not touch or attempt to clean glass while hot Maintenance ScheduleSymptom Possible causes Corrective action Troubleshooting the Montebello LSM40ST FireplaceCat. No Replacement Parts ListGas Controls SIT Electronic Replacement Parts Illustration Page 506025-05 Rev. C 05/2011
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