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14ACX Air Conditioner

Merit® Series

14ACX Air Conditioner

Economical, environmentally responsible home cooling

The temperature always feels just right inside with the budget-friendly 14ACX. Precision-engineered with quality components, this air conditioner allows you to enjoy exceptional comfort, without the worry of high utility bills.


Here are some of the top features of the 14ACX:

Efficiency rating meets or exceeds 14.00 SEER which can save you hundreds of dollars each year*, compared to an older air conditioner.

ENERGY STAR® qualified which means it meets or exceeds EPA guidelines for energy efficiency.

Dependable scroll compressor provides smooth, efficient and reliable operation.


Features and Benefits

Energy Efficiency

  • Efficiency rating meets or exceeds 14.00 SEER—which can save you hundreds of dollars a year, compared to a standard air conditioner
  • ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency
  • 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—provides exceptional comfort without exacting a costly environmental toll

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

14ACX Product Literature

Product Brochures


14ACX Air Conditioner Product Brochure

Installation Manuals


14ACX Air Conditioner Installation Manual


Rated 4.5 out of 5 by 84 reviewers.
Rated 4 out of 5 by AC seems to be working properly. As I have only had the new system for a couple of weeks I am unable to give a more detailed review. AC seems to be cooling properly and using less electricity. September 11, 2014
Rated 5 out of 5 by A/C Coooooools!!! This A/C is replacing a 22 year old unit. It finally decided to give out. It did it so slowly we had forgotten what a cool room felt like! This thing cools. Not only does it cool our den but it also cools our workshop which has a lot of windows and never cooled before. It's not very noisy. The inside unit is a lot quieter than the last. Overall we are very satisfied with the unit. September 4, 2014
Rated 5 out of 5 by this product works great This products works great. It cools the house extremely well. September 3, 2014
Rated 5 out of 5 by THE BEAST AC UNIT 1 This was a fantastic choice for our AC unit replacement. The unit is relatively quiet and has a good cycle time with the digital thermostat. Having a two story home in Florida, our old unit never seemed to cool off the 2nd floor. This new AC unit actually causes me to look for some blankets. Also, I like the fact that Lennox is a name that has been around for a long-time and exemplifies " high quality!" Sincerely, Happy Customer September 1, 2014
Rated 5 out of 5 by Nice Being from Texas and as in Florida knowing how an AC unit should work. This product does everything it promises. I had some AC/DC electrical training but with being able to see my electric bill by the hour online.. This unit is awesome for the price! My home is so much more fun with a new level of comfort.. We are very pleased.. Thank You.. August 29, 2014
Rated 4 out of 5 by AC unit Cools very well, efficiently. The inside unit is a bit noisy. August 28, 2014
Rated 5 out of 5 by This product is quiet, efficient, and has reduced my electric bill. This product is quiet and efficient and has resulted in reducing my monthly electric bills. Highly recommend. August 28, 2014
Rated 3 out of 5 by Runs quite once it up and running ,but makes a prominent "bang" at the compressor start up . Works fine when it is up and running but at start up the the compressor makes a loud "bang". Can't be a good thing... If I had it to do over again... I would buy one that does not "bang" at start up. August 27, 2014

*Savings amounts depict potential energy savings you can expect from Lennox air conditioners versus a 13 SEER model. Your actual savings may vary depending on the weather patterns in your local area, local fuel rates and your individual lifestyle.
**Must be accompanied by either a variable speed air handler or furnace and the ComfortSense® 7000 Series touchscreen thermostat

Recognitions and Certifications

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

© 2014 Lennox International Inc.