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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 80 reviewers.
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
Rated 5 out of 5 by Prodect has great features Have not had unit for long, but so far very satisfied! August 27, 2014
Rated 1 out of 5 by Broken Within 2 Weeks I purchased this air conditioner brand new. 2 weeks after installation, the coil was frozen and it turned out the coil was leaking so severely that a refresh of coolant to trace the leak lasted less than 2 days. The entire coil had to be replaced with a new unit. Naturally, this wasn't a 'next day' repair. In addition to time spent diagnosing the issue, I had to wait for the new coil and for a new installation team to install it. No item should break down immediately after install, and this item broke down dramatically and while I didn't have to pay for the new coil, I paid significantly in inconvenience, sitting around in the heat, days off work for multiple installs and repair visits, and general stress. My impression is that the coils on these may be subject to failure, and that it seems to be a known issue to everyone except to customers who are trying to decide on what product to buy. Had I known this was a unit that would fail so immediately and dramatically, I would have selected a different brand. August 26, 2014
Rated 5 out of 5 by Energy efficient This product is perfect for our home and is energy efficient and economical to own. August 24, 2014
Rated 5 out of 5 by So far works great and is quiet So far it is working great, it is cooling my house better that my old Lennox. It is much quieter than my old AC and has a better outside outer case, which should make it more hail beating resistant than my old AC. I will also be looking forward to lower bills than my old AC as well. August 21, 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.