Lennox ML196DFEK Series User's Information Manual
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Lennox ML196DFEK Series User's Information Manual

Lennox ML196DFEK Series User's Information Manual

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©2024 Lennox Industries Inc.
Dallas, Texas, USA
508572-01
11/2024
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
WARNING
FIRE OR EXPLOSION HAZARD.
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
USER'S INFORMATION
ML196DFEK
SERIES
GAS FURNACE
WARNING
This furnace is equipped with an ignition control
factory enabled for use with Lennox A2L refrigerant
systems.
Disabling
functionality on A2L system is prohibited by safety
codes. Refer to furnace installation instructions for
non-A2L and non-Lennox refrigerant system setup.
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Leave the building immediatly
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
MANUAL
the
refrigerant
detection

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Summary of Contents for Lennox ML196DFEK Series

  • Page 1 508572-01 SERIES 11/2024 GAS FURNACE WARNING This furnace is equipped with an ignition control factory enabled for use with Lennox A2L refrigerant systems. Disabling refrigerant detection functionality on A2L system is prohibited by safety codes. Refer to furnace installation instructions for non-A2L and non-Lennox refrigerant system setup.

  • Page 2: Pressure Switch

    ML196DFEK Parts Identification TOP CAP AIR INTAKE EXHAUST BLOWER MOTOR LOW GWP INTEGRATED CONTROL PRESSURE SWITCH COMBUSTION AIR INDUCER GAS VALVE BURNER BOX / BURNERS FIGURE 1 If this is not possible, the water supply to the house should be NOTE - This manual is the property of the homeowner shut off and the pipes should be drained.

  • Page 3: Safety Instructions

    WARNING Safety Instructions 1 - Keep the furnace area clear and free of combustible Do not set thermostat below 60°F (16°C) in heating material, gasoline, and other flammable vapors mode. Setting thermostat below 60°F (16°C) reduces and liquids. If it is installed in an insulated area, the the number of heating cycles.
  • Page 4 4 - This furnace is equipped with an ignition device which places) has the potential to produce carbon monoxide automatically lights the burners. Do not try to light the gas. Because of this, Lennox recommends the use of burners by hand. a carbon monoxide detector in your home, even if you do not own gas appliances.

  • Page 5: Maintenance

    Annually (before heating season) inspect furnace venting Filters system, vent cap, heat exchanger, and burners for corrosion, All filters are installed external to the unit. Filters should be deterioration, or deposits of debris. Remove any obstructions. inspected monthly. Clean or replace the filter(s) when nec- Inspect the furnace for obvious signs of deterioration.

  • Page 6: Service Reminder

    Service Reminder Planned Service Call your Lennox service technician if the unit will not op- Annual Furnace Maintenance erate. Before calling, always check the following to be At the beginning of each heating season, and to comply sure service is required: with the Lennox Limited Warranty, your system should be 1 - Check that electrical disconnect switches are ON.

  • Page 7: Repair Parts List

    12 - Inspect the furnace return air duct connection to Repair Parts List ensure the duct is sealed to the furnace. Check for The following repair parts are available through Lennox air leaks on supply and return ducts and seal where dealers. When ordering parts, include the complete fur- necessary.

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