Lennox Hearth L20 DVF-2, L20 BF-2 manual Maintenance

MAINTENANCE

Always Turn Off Gas Control Valve Before Cleaning. Annual Maintenance Should Only Be Performed By A Qualified Service Technician:

(ALL MODELS)

LOG SET

Removing & Cleaning Logs - Carefully remove the logs (remov- ing top logs, then lifting front log out, then rear log). Use care when handling the fiber logs, as they become quite fragile after curing. Use a small soft-bristled brush (e.g., a nylon paint brush) to remove soot, dust or debris that may have accumu- lated on the burner or log set. Remove the logs and burner, and clean them outside the home in a location with plenty of fresh air ventilation. Avoid breathing fine particulates of dust that may be generated. See page 14, Installing Log Set for instruc- tions on reinstalling logs.

Replacing Logs - If logs become damaged by accident or im- proper handling and need replacement, use only the proper re- placement logs from manufacturer, which can be purchased from your local dealer. See Page 25.

CLEANING BURNER

With the logs removed, vacuum out any foreign matter (lint, carbon etc.) on the burner. Be sure the burner ports are “open.”

CLEANING VALVE / AIR VENTURI

Clean all lint and dust build-up around the control valve and air shutter on the venturi. Inspect and clean with a brush or wire the inlet of the venturi for any spider webs or lint accumulation.

Burner Assembly

Air Shutter

Ensure opening is clear from lint, dust, spider webs, debris, etc.

INSPECT WIRING / CAUTIONS:

1)Label all wires prior to disconnection when servicing con- trols. Wiring errors can cause improper and dangerous op- eration.

2)Verify proper operation after servicing.

3)Inspect and clean all wire connections. Ensure that there is no melting or damage from rodents. Inspection should in- clude:

•Terminals at the valve

•On / Off switch

•Wall Thermostat / Remote Control (optional kits)

VENTING SYSTEM

A periodic examination of the venting system must be per- formed to ensure that the flow of combustion and ventilation air is not obstructed (outlet and inlet is open and free from block- age). We recommend that you have your gas appliance checked yearly by your independent Lennox dealer.

(Model L20 DVF-2) If the vent-air intake system is disassembled for any reason, the service technician should follow vent manu- factures instructions for proper reassembly and sealing of the vent-air intake system.

IMPORTANT – APPLIANCES INSTALLED USING SIMPSON DURA-VENT BRAND PIPE MUST SEAL ALL JOINTS WITH MILL-PAC BLACK, HIGH TEMPERATURE SEALANT.

CLEAN EXTERNAL SURFACES

External surfaces should be kept clean and dust removed form air inlets to the appliance. The flow of combustion and ventila- tion air must not be obstructed. The appliance must be kept clear and free from combustible materials, gasoline and other flammable vapors and liquids.

SMALL AREA PAINT TOUCH-UP

The stove body is painted with a quality high-temperature stove paint. Use only model TSPK-C Stove Paint, Catalog # 19L92. Do not touch-up this appliance with any other paint.

Using one small piece of 320 grit sand paper and lightly sand the blemish so that the edges are “feathered” or smooth to the touch between the painted and bare surfaces. Do not let the sand paper gum up with paint, as this will cause scratches on the metal surface. If there are any scratches, use 600 grit sand- paper instead. Mask off surfaces you do not want painted. Paint lightly over the bare surface first as this will act as an undercoat. Then paint over a larger area in smooth even strokes to blend.

See Break-In Period on page 17 for information on curing the paint.

CLEANING GLASS

The window on the gas appliance is made from a clear ceramic material and may be cleaned when cool with any non-abrasive product designed for use on glass windows. Do not use abra- sive cleaners on glass. The viewing glass should be cleaned periodically. Exterior glass may be cleaned with a glass cleaner as desired. Interior glass - use soap and water, or commercial glass cleaner recommended for stove glass.

Note: Each time the appliance is lit, it may cause condensation and fog on the glass. This condensation and fog will disappear in a few minutes.

CLEANING BLOWER INTAKE

The blower air intake requires cleaning at least once a year to remove lint, dust, etc. If there are pets in the dwelling, the intake should be cleaned at least twice a year.

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