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Lennox SL280UH090V48B Variable Speed Low NOx Gas Furnace 80% AFUE 4 Ton

Name: Lennox SL280UH090V48B Variable Speed Low NOx Gas Furnace 80% AFUE 4 Ton
Brand: Lennox
SKU: SL280UH090V48B
Price: 1514.00 USD
Availability: InStock

Low stock: 1 left

$1,514.00 USD

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Lennox (Dave Lennox Signature Collection)

Premium 2-Stage Heating: Automatically adjusts flame size to maintain a perfectly consistent home temperature.
Variable Speed Comfort: Enhanced humidity control and air filtration due to constant, low-speed air circulation.
80% AFUE Reliability: The ideal choice for regions where non-condensing venting is required or preferred.
Energy Star Rated: Meets strict efficiency guidelines, potentially qualifying for local utility rebates.
Durable Duralok Heat Exchanger: Constructed from high-quality patented ArmorTuf steel for long-term corrosion resistance.

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Specifications

Product Details

Brand: Lennox (Dave Lennox Signature Collection)
Manufacturer: Lennox Industries
Model #: SL280UH090V48B
UPC/SKU: 662551468249 / SL280UH090V48B
Weight: 152 Pounds
Voltage: 115 VAC
Capacity: 88,000 BTUH Input / 71,000 BTUH Output
Airflow: 4.0 Ton Capacity (1600 CFM)
Efficiency: 80% AFUE
Ignition Type: Silicon Nitride Hot Surface Ignition (HSI)

description

Lennox SL280UH090V48B Variable Speed Low NOx Gas Furnace 80% AFUE 4 Ton

The Lennox SL280V Series serves as the high-efficiency "airflow brain" for your home’s heating and cooling system. This 80% AFUE variable-speed furnace is part of the elite Dave Lennox Signature Collection (DLSC), featuring a two-stage gas valve and a variable-speed blower motor. This combination allows the unit to modulate its output to maintain precise temperature control, reducing energy waste by running at a lower, quieter speed for the majority of the day. Specifically designed for Upflow/Horizontal installations, this 88,000 BTUH powerhouse provides the consistent 4-ton airflow capacity required to support high-efficiency air conditioners and heat pumps.

Key Features

Precision OEM Logic: Controlled by a sophisticated integrated board that manages the variable-speed motor and two-stage gas valve for maximum indoor comfort.
Variable-Speed Blower Technology: Eliminates the "blast" of cold air at startup and significantly reduces electrical consumption compared to standard induction motors.
Acoustically Insulated Cabinet: Features a fully insulated heater compartment and a heavy-duty blower to provide whisper-quiet operation during both heating and cooling cycles.
Low NOx Compliance: Engineered with a specialized burner system to meet strict environmental standards, reducing nitrogen oxide emissions by up to 65%.
Dual-Fuel Compatibility: Optimized to work seamlessly with electric heat pumps, automatically switching between gas and electric heat for the most cost-effective performance.

Product Details

Brand: Lennox (Dave Lennox Signature Collection)
Manufacturer: Lennox Industries
Model #: SL280UH090V48B
UPC/SKU: 662551468249 / SL280UH090V48B
Weight: 152 Pounds
Voltage: 115 VAC
Capacity: 88,000 BTUH Input / 71,000 BTUH Output
Airflow: 4.0 Ton Capacity (1600 CFM)
Efficiency: 80% AFUE
Ignition Type: Silicon Nitride Hot Surface Ignition (HSI)

🛠️ HVAC Depot Pro Tip

Take a Picture First! Before removing the old furnace, photograph the existing gas line, flue venting, and return air drop. The SL280V is a variable-speed unit; ensure your return ductwork is sized correctly for a 4-ton load (typically 20x25 or dual returns). Diagnostic Check: After installation, verify the "Dip Switch" settings on the control board. If these aren't set to match your outdoor AC unit's tonnage, the variable-speed motor may not ramp up to the proper CFM, leading to frozen evaporator coils or poor dehumidification.

Cross-Reference

Superseded / Legacy: G60UHV, G60UH, SL280UH090V48A
Model Equivalents: Armstrong Air A802V, AirEase A802V
Series Code: DLSC (Dave Lennox Signature Collection)
Other Identifiers: 80% Variable Speed, Low NOx 88k BTUH

Model Compatibility

SL280V Series (Suffixes: UH070V36A, UH090V48B, UH090V60C, UH110V60C)
C35/CX35 Coils (Suffixes: 48B, 49B, 50/60C)
S30/E30 Controls (Suffixes: iComfort Smart Thermostats)
Healthy Climate (Suffixes: PCO3, HEPA, Carbon Clean 16)

User manuals

Product Specifications

Installation Instructions

Specification

Refund policy

Refund & Return Policy

Last Updated: June 2026

At HVAC Parts & Equipment Depot, customer satisfaction is important to us. This Refund & Return Policy explains how returns, exchanges, and refunds are handled for purchases made through TopHVACParts.com.

Return Eligibility

We accept returns within 30 days of delivery.

To qualify for a return:

The item must be unused, uninstalled, and in its original condition.
The item must be returned in its original packaging.
Model numbers and serial numbers must match the original purchase records.
Proof of purchase or order confirmation is required.

Non-Returnable Items

The following items are not eligible for return or refund:

Installed or used parts.
Products showing signs of installation, modification, or damage caused after delivery.
Items missing original packaging.
Sale or clearance items.
Special-order or custom-order products.
Returns requested more than 30 days after delivery.

Restocking Fee

Approved returns may be subject to a 20% restocking fee.

The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.

Damaged, Defective, or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.

Email: support@tophvacparts.com
Phone: (214) 734-5222

We may request photographs and additional information to help process your claim.

If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.

Exchanges

We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.

To request an exchange, contact us at:

support@tophvacparts.com

Refund Process

Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.

If approved:

Refunds will be issued to the original payment method.
Processing typically takes 7–14 business days after approval.
Your financial institution may require additional time before the refund appears in your account.

Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

Our shipping error,
A defective product,
A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

Refund & Return Policy

Last Updated: June 2026

Return Eligibility

We accept returns within 30 days of delivery.

To qualify for a return:

The item must be unused, uninstalled, and in its original condition.
The item must be returned in its original packaging.
Model numbers and serial numbers must match the original purchase records.
Proof of purchase or order confirmation is required.

Non-Returnable Items

The following items are not eligible for return or refund:

Installed or used parts.
Products showing signs of installation, modification, or damage caused after delivery.
Items missing original packaging.
Sale or clearance items.
Special-order or custom-order products.
Returns requested more than 30 days after delivery.

Restocking Fee

Approved returns may be subject to a 20% restocking fee.

The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.

Damaged, Defective, or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.

Email: support@tophvacparts.com
Phone: (214) 734-5222

We may request photographs and additional information to help process your claim.

If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.

Exchanges

We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.

To request an exchange, contact us at:

support@tophvacparts.com

Refund Process

Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.

If approved:

Refunds will be issued to the original payment method.
Processing typically takes 7–14 business days after approval.
Your financial institution may require additional time before the refund appears in your account.

Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

Our shipping error,
A defective product,
A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

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Happy Shouts From Our Thrilled Customers

William Bartlett

Cecil really saved me with troubleshooting tips over the phone. Thought I was going to have to replace the blower motor and ended up only needing a motor run capcitor. Thank you and God bless!

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Riley Connolly

Cecil and Fidel were absolutely amazing and so helpful. We were happy they were open on Sunday, but was impressed with their knowledge and willingness to make sure we had everything we needed. If you need parts or service or install, I would recommend.

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Cole Meger

Our AC went out during the hottest stretch of summer, and with a one-year-old at home, we were desperate for a quick fix. These guys came through big time — not only did they source the part faster than anyone else in the area, they also walked me through DIY troubleshooting while I waited. Trustworthy, knowledgeable, and run by a solid local family. As someone who owns rental properties nearby, I’ll be sourcing all my HVAC parts from them moving forward. Highly recommend!

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Carl T. Droste

Had a power outage last night and during the 100 degree heat today noticed that the AC was not blowing any cold air. Pulled the capacitors to have them checked and also took video of the relay making noise even with the breaker was off. The proprietor and her staff were very friendly and helpful. She had the video analyzed and confirmed something was wrong. She checked one of the capacitors was a little low. Capacitor replacement is the biggest ticket item for HVAC repair. It is hundreds of dollars with the a capacitor only about $20.

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Cecil and his family have been a life saver. I walked in with very little knowledge on parts let alone how to repair my unit. All I had was my brother in FL who knows more than I do and Cecil at HVAC Depot. With 2 young kids at home I couldn't afford to wait for a HVAC tech. Cecil walked me through what I needed to know, even after hours when the shop closed. I successfully repaired the fan motor and replaced the capacitor. Thank you HVAC team for being totally awesome. Prices were amazing and I'm forever going to support this small family business. You and your family are what Texas is all about!!!

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Linda Robinson

I called HVAC Depot and was absolutely blown away by the fast, courteous and exceptional service. They were very knowledgeable about explaining what they were doing and what had happened to the ac system. If you ever need a HVAC team they are best and they won’t hesitate by coming out and they won’t leave until you are happy with the service. Thank you so much for your excellent service. Kudos to you Michelle for your amazing customer service.

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Paul Hamer

My AC went out in our home on Friday night. I went out and got the capacitor details and took them here first thing Saturday morning. Lady at the counter was friendly and had the capacitor I needed! When I got home, I installed the capacitor and AC is all good!!

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Jeff Ledesma

Awesome support and had everything I needed for an older unit! Then helped me out with the DIY!! Air conditioning back up and running at 100%!!
Thanks for everything

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Frequently Asked Questions

Questions? We’ve got you covered

Can anyone buy from your store, or do I need to be a licensed contractor?

We are open to the public! Homeowners, landlords, and DIYers are all welcome—no license required.

What kinds of HVAC parts do you sell?

We carry blower motors, fan motors, capacitors, control boards, contactors, thermostats, filters, copper lines, refrigerants, and more.

Do you sell parts for specific brands like Trane, Goodman, or Lennox?

Yes, we stock OEM and compatible replacement parts for major brands including Trane, Goodman, Lennox, Carrier, Rheem, and others.

Can you help me find the right part for my system?

Absolutely! Bring in the part, model number, or a picture, and our team will help match you with the correct replacement.

Do you offer returns or exchanges on parts?

Yes, we accept returns or exchanges within a set time period—just make sure the item is unused and in original packaging. Ask for specific terms at the counter.

Do you provide technical support or installation services?

While we don't install, we can answer basic questions and refer you to trusted local HVAC technicians if needed.

Do you sell refrigerants to the public?

We sell certain refrigerants, but EPA regulations require certification for purchase of products like R-410A or R-22.

Do you ship parts, or is it in-store only?

We offer both! You can shop in person or call to arrange shipping if you're out of town.

Lennox SL280UH090V48B Variable Speed Low NOx Gas Furnace 80% AFUE 4 Ton