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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 4.4 out of 5 by 26 reviewers.
Rated 2 out of 5 by Purchased in 2010 - replaced both air handler and compressor Had to replace the blower motor in 2012 - and now it's leaking - the tech says that it's algae and will have to pull the coils to clean which will be very expensive - I can't believe that I have had so many problems with a new and expensive air conditioner! October 22, 2013
Rated 3 out of 5 by noise on start up and shut down The system cools great.Very. quite when running. Makes loud noise on start up,and again on shut down August 24, 2013
Rated 5 out of 5 by If this new air conditioner is as good as the old one, I'm blessed. My old air conditioner was installed in 1983. It has served me well with excellent performance and much lower costs than some of my neighbors. After 30 years, one month and a few days, it finally quit. If my new, more efficient, compressor and evaporator coil performs as expected, I will save a ton of money on electrical bills. My quality of life is already better with more quiet operation and greater cooling. Thanks, Lennox! August 3, 2013
Rated 1 out of 5 by Product has poor quality. Product has poor quality. Installed two complete systems in March 2011. One until failed to cool July 2013. Repair tech said the coil has failed and only way to fix is to replace. These units replaced a competitor that had been in place for fifteen years. Will never own another Lennox. July 25, 2013
Rated 5 out of 5 by this is a great product, very quiet this product is very quiet and has a value and what is so great is that I get tax credits on this product. love the this product. May 20, 2013
Rated 5 out of 5 by This product has a good service history and was afordable In comparison between features and price, this unit was a good solution. April 28, 2013
Rated 5 out of 5 by Replaced a 24 year old Lennox with this new one that seems even better built We had very good service from our old unit but had to move it off the deck. Chose to get another Lennox and are looking forward to the more efficient running when the weather warms. We love the new furnace that was part of our package, it is very quiet compared to the old furnace. April 23, 2013
Rated 5 out of 5 by Great value for a quality product! We love Lennox products and look forward to many years of superior cooling with this product! A great value for excellent quality! April 18, 2013

*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

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