Lennox Hearth MPD35ST-NE Maintenance Schedule, Maintenance Task, Accomplishing Person, Procedure

MAINTENANCE SCHEDULE

Annually (Before the onset of the Burning Season)

MAINTENANCE TASK	ACCOMPLISHING PERSON	PROCEDURE
Inspecting/Cleaning Burner, Logs	Qualified Service Technician	Inspect valve and ensure it is properly operating. Check piping
and Controls		for leaks. Vacuum the control compartment, fireplace logs and
		burner area.
Check Flame Patterns and Flame	Qualified Service Technician	Refer to Figure 13 on Page 9 and verify the flame pattern and
Height		height displayed by the appliance conforms to the picture. Flames
		must not impinge on the logs. Ensure flames are steady (not
		lifting or floating).
Inspecting/Cleaning Pilot and Burner	Qualified Service Technician	Refer to Figure 15 and Figure 16 on Page 10. 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.
Checking 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. Note:
		Excessive condensation can cause corrosion of caps, pipe &
		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 the appropriate appliance checkout procedure detailed
		in this manual.
Replacing Rockwool Ember Materials	Homeowner/Qualified Service	Remove old ember materials (rockwool) and vacuum the ember
	Technician	placement area. Place new embers as described in Step 6 on
		Page 8.
Periodically (After the Burning Season)
MAINTENANCE TASK	ACCOMPLISHING PERSON	PROCEDURE
Cleaning Firebox Interior	Homeowner	Carefully remove logs, rockwool, volcanic stone and vermiculite.
		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	Homeowner	Refer to Figure 13 on Page 9 and verify the flame pattern and
Height		height displayed by the appliance conforms to the picture. Flames
		must not impinge on the logs.
Checking Vent System	Homeowner	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 of the vent components.
Cleaning 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.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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