Lennox Merit Series User Manual

24
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • CARE AND OPERATION
MAINTENANCE TASK ACCOMPLISHING PERSON PROCEDURE
Inspect/Clean Burner and
Controls
Qualified Service Technician Inspect valve and ensure it is properly operating. Check piping
for leaks. Vacuum the control compartment and burner area.
Check Flame Patterns and Flame Height Qualified Service Technician Refer to Figure 7 (MLDVTCD-35) on Page 14 and verify the
flame pattern and height displayed by the appliance conforms
to the picture. Ensure flames are steady (not lifting or floating).
Inspect/Clean Pilot and Burner Qualified Service Technician Refer to Figure 9 (SIT Millivolt) or Figure 10 (Electronic) on Page
15. 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
rebox) 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 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 the appropriate appliance checkout procedure detailed
in this manual.
Periodically (After the Burning Season)
MAINTENANCE TASK ACCOMPLISHING PERSON PROCEDURE
Clean Firebox Interior Homeowner Carefully remove contemporary media. Vacuum out interior of
the firebox. Clean firebox walls. Replace contemporary media
as detailed in this manual.
Check Flame Patterns and Flame Height Homeowner Refer to Figure 7 (MLDVTCD-35) on Page 14 and verify the
flame pattern and height displayed by the appliance conforms
to the picture.
Check Vent System Homeowner Inspect the vent system at the top and at the base (within the
rebox) for signs of blockage or obstruction. Look for any signs
of dislocation of the vent components.
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.
Annually (Before the onset of the Burning Season)
MAINTENANCE SCHEDULE
Turn off gas and electrical power to the fireplace and allow it to cool before cleaning or servicing the appliance.

Lennox Merit Series Specifications

General

Brand	Lennox
Model	Merit Series
Category	Furnace
Language	English