£

.2000 Lennox Industries Inc. Dallas, Texas, USA

503,991M

6/2000

G40UH(X)

SERIES

GAS FURNACE

Litho U.S.A.

WARNING

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

Do not store or use gasoline or other flam- mable 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.

WHAT TO DO IF YOU SMELL GAS:

Do not try to light any appliance.

-Extinguish any open flames.

Do not touch any electrical switch; do not use any phone in your building.

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 de- partment.

06/00

503,991M

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Lennox International Inc G40UH(X) manual Litho U.S.A, What to do if YOU Smell GAS

G40UH(X) specifications

Lennox International Inc. has long been a recognized leader in the heating, ventilation, and air conditioning (HVAC) industry, providing customers with innovative, high-efficiency solutions. One of its standout products is the G40UH(X) series, a gas furnace that exemplifies modern engineering and energy efficiency. The Lennox G40UH(X) is designed to offer powerful heating capability while maintaining eco-friendly performance and reliability.

One of the main features of the G40UH(X) is its multi-speed blower motor, which not only enhances comfort levels but also operates quietly and efficiently. This furnace utilizes advanced technology to provide better airflow and even heating throughout the space, reducing temperature fluctuations and ensuring that every corner of a home remains comfortable regardless of external weather conditions.

The G40UH(X) series includes a variable-speed gas valve, allowing for precise control over heating output. This feature enables the furnace to adjust its heating capacity in response to the specific needs of the home, optimizing energy consumption and reducing utility costs. Its efficiency rating of up to 96% AFUE (Annual Fuel Utilization Efficiency) means that a significant majority of the energy consumed is effectively converted into heat, making it an environmentally friendly choice.

In terms of design, the G40UH(X) is compact and versatile, making it suitable for various home layouts. Its quiet operation is another significant benefit, as it is engineered to minimize noise, ensuring that it does not disrupt daily activities while efficiently heating the home.

Additional characteristics of the G40UH(X) include compatibility with the Lennox iComfort S30 Smart Thermostat. This integration allows homeowners to control the system remotely, optimizing performance and ensuring maximum comfort. Safety is also a top priority with features such as a secondary heat exchanger and an integrated carbon monoxide sensor, providing peace of mind to users.

Overall, the Lennox G40UH(X) gas furnace embodies quality, efficiency, and innovative design, making it a popular choice for homeowners looking to enhance their heating systems. With its combination of advanced technology, substantial performance, and user-friendly features, the G40UH(X) remains an ideal solution for modern indoor comfort.