Maintenance Schedule - Lennox Hearth Products MERIT PLUS Care And Operation Instructions Manual

LENNOX HEARTH PRODUCTS • MERIT PLUS

MAINTENANCE SCHEDULE

Annually (Before the onset of the Burning Season)
MAINTENANCE TASK
Inspect/Clean Burner, Logs
and Controls
Check Flame Patterns and Flame Height
Inspect/Clean Pilot and Burner
Check Vent System
Appliance Checkout
Replacing Glowing Embers
Periodically (After the Burning Season)
MAINTENANCE TASK
Clean Firebox Interior
Check Flame Patterns and Flame Height
Check Vent System
Clean Front Glass Enclosure Panel
DIRECT VENT GAS FIREPLACES (MPD33/35/40/45) • CARE AND OPERATION INSTRUCTIONS
®
ACCOMPLISHING PERSON
Qualified Service Technician
Qualified Service Technician
Qualified Service Technician
Qualified Service Technician
Qualified Service Technician
Homeowner/Qualified Service
Technician
ACCOMPLISHING PERSON
Homeowner
Homeowner
Homeowner
Homeowner
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
PROCEDURE
Inspect valve and ensure it is properly operating. Check piping
for leaks. Vacuum the control compartment, fireplace logs and
burner area.
Refer to Figures 10 (MPD33), 11 (MPD35) or 12 (MPD40 &
MPD45) 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. Ensure flames are steady (not
lifting or floating).
Refer to Figure 14 (millivolt) or Figure 15 (electronic) 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.
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). NOTE: Inspect wall straps
or plumbers's tape to ensure it is secure and in place.
Perform the appropriate appliance checkout procedure detailed
in this manual.
Remove old ember materials (rockwool) and vacuum the
ember placement area. Place new rockwool as described in
this document.
PROCEDURE
Carefully remove logs, glowing embers and decorative 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.
Refer to Figures 10 (MPD33), 11 (MPD35) or 12 (MPD40 &
MPD45) 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.
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 (reconnect or replace as
necessary).
Clean as necessary following the directions provided in this
manual. DO NOT TOUCH OR ATTEMPT TO CLEAN GLASS
WHILE HOT.
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