Lennox SL280UHNV User's Information Manual

Lennox SL280UHNV manual cover
Pages 7
Year 2017
Language(s)
English en

Lennox SL280UHNV Specification

The Lennox SL280UHNV is a high-efficiency gas furnace designed to deliver consistent warmth and energy savings. It features a two-stage gas valve that adjusts fuel consumption based on demand, ensuring optimal heating and improved energy efficiency. This model operates with an AFUE (Annual Fuel Utilization Efficiency) rating of up to 80%, indicating that it converts up to 80% of its fuel into usable heat. The SL280UHNV is equipped with a variable-speed motor, which enhances airflow control and maintains a steady temperature throughout the home while reducing energy consumption and noise levels. This furnace is compatible with the Lennox iComfort® S30 ultra-smart thermostat, allowing for seamless integration into a smart home ecosystem and providing advanced monitoring and control options.

Constructed with a heavy-duty steel cabinet, the SL280UHNV ensures durability and long-lasting performance. The inclusion of a SureLight® ignitor and a reliable silicon nitride construction enhances ignition reliability and longevity. The unit also features a sealed blower compartment, which minimizes air loss and maximizes efficiency. Its design includes a secondary heat exchanger that optimizes heat transfer and efficiency. The SL280UHNV is engineered to meet stringent emissions standards, making it an environmentally responsible choice for homeowners. Additionally, it offers quiet operation through sound-absorbing materials and innovative design features, making it suitable for installation in various home settings. Overall, the Lennox SL280UHNV combines advanced technology with robust construction to provide reliable, efficient, and environmentally friendly heating solutions.

Lennox SL280UHNV F.A.Q.

How can I reset the Lennox SL280UHNV furnace?

To reset the Lennox SL280UHNV furnace, turn off the power to the unit, wait for about 5 minutes, and then turn the power back on. This allows the system to reboot and clear any temporary errors.

What maintenance steps are recommended for the Lennox SL280UHNV?

Regular maintenance for the Lennox SL280UHNV includes changing the air filter every 1-3 months, checking the thermostat settings, inspecting the vents for blockages, and scheduling annual professional inspections and cleanings.

Why is my Lennox SL280UHNV furnace not igniting?

The furnace may not ignite due to issues such as a dirty flame sensor, malfunctioning ignitor, or insufficient gas supply. Ensure the gas valve is open, clean the flame sensor, and consider contacting a technician if the problem persists.

How do I improve the efficiency of my Lennox SL280UHNV furnace?

To improve the efficiency, ensure proper insulation of your home, regularly replace air filters, seal ductwork leaks, and use a programmable thermostat to optimize heating schedules.

What should I do if the Lennox SL280UHNV furnace is making unusual noises?

Unusual noises can be caused by loose components, a failing blower motor, or debris in the blower wheel. Inspect the unit for loose parts and debris, and tighten or clean as necessary. If the noise persists, contact a professional technician.

How do I replace the air filter in the Lennox SL280UHNV?

To replace the air filter, turn off the furnace, locate the filter compartment, remove the old filter, and insert a new one with the correct size and airflow direction. Ensure the furnace is turned back on after replacement.

What does the error code on my Lennox SL280UHNV mean?

Error codes indicate specific issues with the furnace. Refer to the unit's manual or Lennox's official website for a detailed list of error codes and their meanings, and follow the recommended troubleshooting steps.

Can I install a humidifier with my Lennox SL280UHNV furnace?

Yes, you can install a compatible whole-home humidifier with the Lennox SL280UHNV furnace. It is recommended to consult with a professional HVAC technician to ensure proper installation and integration with your furnace system.

How do I troubleshoot thermostat issues with the Lennox SL280UHNV?

Check the thermostat's power supply, ensure it is set to the correct mode and temperature, and replace batteries if applicable. Verify that the thermostat is correctly wired to the furnace. If issues persist, consult with a professional technician.

What are the benefits of the Lennox SL280UHNV's variable speed motor?

The variable speed motor in the Lennox SL280UHNV provides enhanced comfort by maintaining consistent temperatures, improves air quality through better air circulation, and increases energy efficiency by adjusting speed to heating demands.