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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 4.6 out of 5 by 122 reviewers.
Rated 5 out of 5 by Great unit for the price! Quiet when installed in the right spot. Fit perfect in the back corner of my house. Cooled my 1000 sq/ft home well. Very happy. August 26, 2014
Rated 5 out of 5 by Compact unit that packs a punch We've had our new Lennox for about a month in the full heat of Virginia summer. It cools our home quickly and doesn't need to run all day like our old unit. I was concerned about how noisy it would be based on other reviews, but it's actually a little quieter than our old unit. We live in a townhouse and the AC unit is right next to the back door. The other, less expensive brands, were much larger and would block the walkway quite a bit. Although Lennox was one of the more expensive options we considered, we ultimately chose the Lennox based on quality, reputation, size and it's ability to hold its value if and when we decide to sell our home. August 26, 2014
Rated 4 out of 5 by Works well, a little pricy This AC unit works well, but is a little pricey. It seems to be a standard for this size with adequate features. August 26, 2014
Rated 5 out of 5 by It does what we were told it would do It is a great product. You can barely hear it running. We have noticed a savings on electric bill. We can run it at a lower temperature that our old one also. Very good product. August 25, 2014
Rated 5 out of 5 by Very satisfied The new AC unit has only been in for 1 month but it works very well. Our previous unit was a Lenox AC that was originally a new unit installed when we bought our condo new 10 years ago. There were two AC units and so far we have only had to replace one of the original units. I assumed 10 years was good service for an AC unit so I was satisfied. August 25, 2014
Rated 5 out of 5 by Excellent product improvement As a conversion on an existing and outdated AC system, this is a quiet, compact, and efficient unit. It is a definite improvement over the previous older technology. August 24, 2014
Rated 5 out of 5 by Works great! I really like hat is seems more efficient than my old account from 1990. August 24, 2014
Rated 5 out of 5 by Great Unit Unit is the right size for the house and works well. August 23, 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.