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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 134 reviewers.
Rated 5 out of 5 by This product was economical and trustworthy. We like the fact that it is a quiet air conditioner. September 15, 2014
Rated 5 out of 5 by Efficient and Even Cooling Because of cool weather, we used the air conditioner only a few times. When we did the cooling was so quiet and even throughout the house. Very pleased. September 12, 2014
Rated 3 out of 5 by Good basic unit Good basic unit. Hoping this will last for next 12 years September 9, 2014
Rated 5 out of 5 by SLIM, QUIET, & EFFICIENT. Our old Lennox air conditioner performed well for some 40 years! But, we caused a freon leak when we shifted it back into upright position because of ground shifting. Our new one is slimmer, quieter, and more energy-efficient. With improvements from the past 40 years, we expect this product to be as good as, or even better. September 9, 2014
Rated 5 out of 5 by Just installed, quiet It is cooling my home while being quiet. It replaced a 40 yr old unit. I plan to take care of it so it lasts 40 years. September 6, 2014
Rated 5 out of 5 by Great product!! The new system was installed 2 weeks ago, the house has never been cooler!! The digital thermostat is easy to use and pretty :) September 5, 2014
Rated 5 out of 5 by Great for small home The unit I purchased was ideal for the size of my home. I have 865 square feet and this works great. September 4, 2014
Rated 5 out of 5 by Efficient and quiet. Our new Lennox air conditioner is cooling our house efficiently and very quietly. September 4, 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.