Lennox International Inc ML180UHE, Gas Furnace manual Safety Instructions

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CAUTION

Before attempting to perform any service or mainte- nance, turn the electrical power to unit OFF at the disconnect switch.

WARNING

Do not set thermostat below 60°F (16°C) in heating mode. Setting thermostat below 60°F (16°C) reduces the number of heating cycles. Damage to the unit may occur that is not covered by the warranty.

WARNING

If overheating occurs or if gas supply fails to shut off, shut off the manual gas valve to the furnace before shutting off electrical supply.

WARNING

Do not use this furnace if any part has been under- water. A flood−damaged furnace is extremely dan- gerous. Attempts to use the furnace can result in fire or explosion. Immediately call a licensed pro- fessional service technician (or equivalent) to in- spect the furnace and to replace all gas controls, control system parts, and electrical parts that have been wet or to replace the furnace, if deemed neces- sary.

NOTICE

Any additions, changes, or conversions required in order for the appliance to satisfactorily meet the ap- plication needs must be made by a licensed profes- sional installer (or equivalent) using factory−speci- fied and approved parts.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, person- al injury or loss of life. Installation and service must be performed by a licensed professional installer (or equivalent), a service agency, or the gas supplier.

Safety Instructions

1 − Keep the furnace area clear and free of combustible

material, gasoline, and other flammable vapors and

liquids. If it is installed in an insulated area, the furnace must be kept free of insulating material. Insulating ma- terial may be combustible.

2 − DO NOT obstruct air flow to unit. Unit must receive an unobstructed flow of combustion and ventilating air. DO NOT block or obstruct air openings on the furnace or air openings to the area in which the furnace is installed. Take care to maintain established clear- ances surrounding the furnace.

3 − DO NOT store chlorine or fluorine products near unit or introduce these products into the combustion air. These products can cause furnace corrosion.

4 − DO NOT draw return air from a room where this fur- nace, or any other gas appliance (ie., a water heat- er), is installed. When return air is drawn from a room, a negative pressure is created in the room. If a gas ap- pliance is operating in a room with negative pressure, the flue products can be pulled back down the vent pipe and into the room. This reverse flow of the flue gas may result in incomplete combustion and the formation of carbon monoxide gas. This toxic gas might then be distributed throughout the house by the furnace duct system.

WARNING

The blower door must be securely in place when the blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into the living space resulting in personal injury or death.

Your furnace is a gas appliance. It is critical that the gas supplied to the unit be completely burned to avoid the pro- duction of carbon monoxide gas. Complete combustion of the gas requires, but is not limited to, correct gas pressure and gas flow rate, adequate combustion, air, and proper venting.

WARNING

Carbon monoxide gas is invisible, odorless and toxic.

Exposure to carbon monoxide gas can cause personal inju- ry and even death to all occupants, including pets. Any item that is powered by or gives off heat from a combustion pro- cess (including lawn mowers, automobiles, and fireplaces) has the potential to produce carbon monoxide gas. Because of this, Lennox recommends the use of a carbon monox- ide detector in your home, even if you do not own gas appliances. Reliable detectors are available at reasonable retail prices. Contact your Lennox dealer for more details about this investment in your safety.

Your furnace is designed to meet standards set by nation- al agencies, and to operate safely when properly installed and maintained. However, the unit’s performance can be greatly impacted by the individual installation and the op- erating environment. It is your responsibility to ensure that

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Contents ML180UHE Series ML180UHE Parts Identification Carbon monoxide gas is invisible, odorless and toxic Safety InstructionsStart−Up & Operation Information Filters MaintenanceService Reminder Safety PrecautionsPlanned Service Repair Parts List
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ML180UHE, Gas Furnace specifications

Lennox International Inc is well-known for its commitment to sustainability, innovation, and efficiency in the HVAC industry. One of their standout offerings is the EL195DFE Series gas furnace, designed to provide optimum heating performance while maintaining energy efficiency.

The EL195DFE Series gas furnace operates with an impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 95 percent. This means that 95 percent of the fuel consumed is converted into usable heat, ensuring lower energy bills and a reduced environmental footprint. The high-efficiency rating makes it an ideal choice for homeowners looking to upgrade their heating system without sacrificing comfort.

A notable feature of the EL195DFE Series is its two-stage heating capability. This technology allows the furnace to adjust its heating output based on the home’s requirements, operating at a lower capacity during milder conditions and ramping up its output during colder weather. This not only enhances comfort by reducing temperature fluctuations, but it also contributes to energy savings, as the system does not run at full capacity unnecessarily.

Additionally, the EL195DFE Series is equipped with a variable-speed blower motor. This feature ensures that air is distributed evenly throughout the home, reducing hot and cold spots. The variable speed operation also contributes to quieter operation, allowing for a more peaceful indoor environment.

One of the key characteristics of the EL195DFE Series is its robust construction and reliability. The furnace is built with high-quality materials, designed to withstand years of use while minimizing the likelihood of breakdowns. Furthermore, Lennox provides an extensive warranty for this product, giving homeowners peace of mind regarding their investment.

Designed with ease of installation and maintenance in mind, the EL195DFE Series gas furnace includes a user-friendly control board and an integrated condensing design, which simplifies maintenance while providing efficient condensate management.

In summary, the Lennox EL195DFE Series gas furnace exemplifies advanced engineering and technology in home heating solutions. With its high AFUE rating, two-stage heating, variable-speed blower motor, and durable construction, it stands out as an energy-efficient option that promises comfort, reliability, and reduced energy costs for homeowners looking for an upgrade to their heating systems. Lennox continues to lead the market in HVAC innovations, making their products a sought-after choice for conscientious consumers.