Lennox Hearth LSM40ST-N-PV Warning: Burn Hazard, Maintenance Task, Procedure

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LENNOX HEARTH PRODUCTS • MONTEBELLO® SEE-THROUGH POWER VENT DV GAS FIREPLACES (LSM40ST-N-PV) • 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 operating properly.
and Controls		Check piping for leaks.
		Vacuum the control compartment, fireplace, logs, and burner area.
Check Flame Patterns and Flame Height	Qualified Service Technician	Refer to Figures 21 and 22 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 23 on Page 16. 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 top and 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.
		Note: Excessive condensation can cause corrosion of caps, pipe
		and fittings (excessive condensation can be caused by long lateral
		runs, too many elbows and/or exterior portions of the system being
		exposed to cold weather). Also inspect wall straps or plumbers's
		tape to ensure it is secure and in place.
Appliance Checkout	Qualified Service Technician	Perform appropriate appliance checkout procedure, as detailed in this
		manual.
Replace Glowing Embers	Homeowner/Qualified Service	Remove old glowing ember material, and vacuum the ember placement
	Technician	area. Place new glowing embers, per instructions on Page 13.
Periodically (after burning season)
MAINTENANCE TASK	ACCOMPLISHING PERSON	PROCEDURE
Clean Firebox Interior	Homeowner	Carefully remove logs, glowing ember material, and volcanic stone.
		Vacuum out interior of the firebox.
		Clean firebox walls and log grate.
		Replace logs, glowing embers, and volcanic stone, as detailed in this
		manual.
Check Flame Patterns and Flame Height	Homeowner	Refer to Figures 21 and 22 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.