Lennox Residential
Email SignupSign up for email news
13ACX Air Conditioner

Merit® Series

13ACX Air Conditioner

Economical, environmentally responsible home cooling

Even in the hottest summer months, the 13ACX works efficiently to enhance your comfort. Compared to an older system, this air conditioner can help you save significantly on your monthly cooling bills.


Here are some of the top features of the 13ACX:

Efficiency rating meets or exceeds 13.00 SEER

Dependable scroll compressor provides smooth, efficient and reliable operation.


Features and Benefits

Energy Efficiency

  • Efficiency rating meets or exceeds 13.00 SEER—which can save you hundreds of dollars a year, compared to a standard air conditioner
  • High-efficiency outdoor coil—provides exceptional heat transfer and low air resistance for high-efficiency operation

Quiet Operation

  • Sound levels—as low as 76 dB
  • Direct-drive fan—precision-balanced direct-drive outdoor fan is designed to provide quieter operation and longer product life

Home Comfort

  • Dependable scroll compressor—provides smooth, efficient and reliable operation
  • Designed to work with the Humiditrol® whole-home dehumidification system*

Environmental Responsibility

  • Chlorine-free R-410A refrigerant—meets the EPA's most stringent environmental guidelines

Reliable Performance

  • PermaGuard™ Cabinet—heavy-gauge, galvanized steel construction, louver coil guard, baked-on powder finish and durable zinc-coated steel base provide long-lasting protection against rust and corrosion.

Warranty and Specs

Warranty and Specs

13ACX Product Literature

Product Brochures


13ACX Air Conditioner Product Brochure

Installation Manuals


13ACX Air Conditioner Installation Manual


Rated 4.5 out of 5 by 73 reviewers.
Rated 5 out of 5 by Very pleased with this product. The product is more effiecient than our previous air conditioner, it runs much quieter and is more economical. July 28, 2014
Rated 5 out of 5 by Perfect for our home We had to replace our old unit and opted for this model. It cools our house (1,800 sq ft.) quickly, came with a digital touch-screen 7 day programmable thermostat and runs almost silently. We couldn't be happier. The price was affordable. Definitely recommend. July 28, 2014
Rated 4 out of 5 by Cools nicely Cools nicely and very quiet. Great product. Very Happy. July 26, 2014
Rated 4 out of 5 by Economical and reliable I have 2 of these units installed and they have been trouble free for 4 years so far. July 25, 2014
Rated 4 out of 5 by efficient product The unit delivers efficient cooling for my home at a reasonable cost. While not a major issue, I wish the noise level was lower. July 25, 2014
Rated 5 out of 5 by Great Air conditioner This Air conditioner is the best size and fit for my house. Glad we purchased this brand. July 21, 2014
Rated 3 out of 5 by Plastic Logo on top rattled the plastic piece with lennox logo on it rattled & made a loud noise. had to put rubber washer & felt under top to quiet it down. its quiet now. July 21, 2014
Rated 5 out of 5 by Efficient Pleased with product; very efficient. Pleased with warranty information as well. July 17, 2014

*Must be accompanied by either a variable speed air handler or furnace and the ComfortSense® 7000 Series touchscreen thermostat

Recognitions and Certifications

UL Listed (C)(US) AHRI Certified C Good Housekeeping HRAI Canada

© 2014 Lennox International Inc.