UPFLOW FURNACE SIDE RETURN AIR

BURNER FLAME

FLAME APPEARS BLUE IF BURNING NAT. GAS; BLUE/ YELLOW FOR PROPANE.

BURNER

FLAME

HEAT

EXCHANGER

TUBE

VEST

PANEL

FIGURE 5

Blower

Check and clean blower wheel for any debris. Blower motor is prelubricated for extended bearing life. No further lubrication is needed.

WARNING

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

Burner Flame

The 80UHG burner flame is not adjustable; however, the flame should be inspected at the beginning of each heating season and burners should be cleaned, if nec8 essary. Burner flame should be blue when burning natural gas, blue/yellow when burning propane gas.

FIGURE 6

Venting System Inspection

Annually (before heating season) inspect furnace venting system, vent cap, heat exchanger and burn8 ers for corrosion, deterioration, or deposits of debris. Remove any obstructions.

Contact your Lennox dealer for a periodic unit inspec8 tion by a qualified service technician.

Flame Rollout Safety Switches

Your Lennox furnace is equipped with two flame roll- out safety switches which shut off the gas supply to the furnace in case of heat exchanger blockage. If the furnace fails to operate due to the functioning of these safety switches, DO NOT attempt to place the furnace into operation. Contact a qualified service technician.

Service Reminder

Call your Lennox service technician if unit is inopera8 tive. Before calling, always check the following to be sure service is required.

1 - Check that electrical disconnect switches are ON.

2 - Are access panels securely in place?

3 - Check room thermostat for proper setting.

4 - Replace any blown fuses or reset circuit breakers. 5 - Gas valve should be ON.

6 - Air filter should not be plugged limiting air flow.

7 - Is gas turned on at meter?

8 - Is manual main shut&off valve open?

To keep your Lennox gas heating system in peak operat8 ing condition year after year, contact your independent Lennox dealer about a planned service program.

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Lennox International Inc 80UHG manual Blower, Burner Flame, Venting System Inspection, Flame Rollout Safety Switches

80UHG specifications

Lennox International Inc. is a prominent player in the heating, ventilation, and air conditioning (HVAC) industry, renowned for its innovative solutions and commitment to energy efficiency. Among its diverse range of products, the Lennox 80UHG stands out as a high-performance, gas-fired furnace designed for residential applications. This model exemplifies the brand's dedication to quality, reliability, and advanced technology.

The 80UHG is characterized by its efficiency, operating at an Annual Fuel Utilization Efficiency (AFUE) rating of up to 80%, which translates to substantial energy savings for homeowners. The unit is engineered to provide consistent heating while minimizing energy consumption. The use of a multi-speed blower motor enhances the unit’s performance, ensuring optimal airflow and temperature distribution throughout the home.

One of the standout features of the 80UHG is its durable construction. The furnace is built with a robust cabinet that helps to minimize noise during operation, providing a quieter environment for occupants. Additionally, the heat exchanger is crafted from high-quality materials, allowing for prolonged lifespan and dependable performance under varying conditions.

Lennox has incorporated several advanced technologies into the 80UHG, enhancing user experience and operational efficiency. The unit is compatible with the brand’s iComfort S30 smart thermostat, which allows for remote temperature control and monitoring from a smartphone. This integration not only provides convenience but also enables homeowners to optimize their energy use based on real-time data and personal preferences.

Safety is another critical aspect of the 80UHG’s design. The unit features a self-diagnostic control board that monitors system performance and alerts users to any potential issues. This proactive approach helps prevent breakdowns and extends the life of the furnace.

Another noteworthy characteristic of the 80UHG is its environmentally friendly operation. The furnace is designed to produce lower emissions, contributing to a reduced carbon footprint. This focus on sustainability is increasingly important in today’s eco-conscious market.

In summary, Lennox International Inc.’s 80UHG gas furnace is a reliable and efficient heating solution that combines advanced technologies with robust construction. Its high AFUE rating, compatibility with smart thermostats, and safety features make it an intelligent choice for homeowners looking to enhance their comfort while also minimizing energy costs and environmental impact.