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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 4.5 out of 5 by 36 reviewers.
Rated 4 out of 5 by Well built The outside unit has a steel casing that encloses the heat exchanger fins, protecting them from damage from lawnmowers, etc. Unit runs very quiet, & is the perfect companion for my Lennox high efficiency furnace. September 9, 2013
Rated 5 out of 5 by Its quiet My neighbor was concerned with the placement of my new Lennox a/c and the noise pollution it would generate. Both my neighbor and I were very much pleased to find when standing next to it running it was quieter then my other neighbor's unit running on the opposite side of my three story house. July 25, 2013
Rated 4 out of 5 by Cools Good, but is Noisy I bought a three-year old house, and this is the unit that was installed when the house was built. I really don't have any complaints about it other than it is loud. Thankfully, my master bedroom is on the opposite side of the house. My son's room is closest to it, and I don't know how he sleeps. I guess it is like living next to a set of train tracks. One gets used to it. If you jostle the unit gently, it seems to quiet down. I have had it serviced, e.g., tighten loose hardware, etc., and it hasn't changed the noise level. Is this unit supposed to have a sound suppressing blanket around the compressor? I wish it did. Now to the positives. It keeps my house with its 9 foot or better ceilings nice and cool! I have no issues with it's function other than the noise. It performs well when it is 100 degrees outside during the hot Louisiana summers. Not a bad unit other than the noise. I gave it four stars because it cools well; otherwise, it is an average unit. July 24, 2013
Rated 5 out of 5 by The best buy without breaking your wallet Now a days all AC Runs with R410A . This refrigerant runs in high pressure of 300 PSI. You can have leak even if you have the best installation and most expensive AC. Some leaks can not be found at all. In some cases you may need to change the whole AC in five to Six years if you can not find the leak. Solidly built 13ACX is the best value for your money. I gave been in the AC business since 2005. precision balance direct drive fan system in this AC makes it very quiet and smooth. I have one installed in the balcony of my townhouse in Ajax,ON.I never hear any sound in side my house. some time to make sure that condenser is running or not I have to open the balcony door to maker sure. I did not mean that other brands I sell are bad. All I mean is that if you buy this Ac you should be happy. there is nothing to worry about. July 4, 2013
Rated 3 out of 5 by Keeps us cool even on the hottest days We live on a hill facing south and have no shade at all, this unit has kept us cool. We have had it now for 6 years and today the compressor went on it. This is the first problem we have had with it. We will replace the compressor and see how it goes. June 18, 2013
Rated 5 out of 5 by Great System Replacement This system is quiet. that is a big plus. I used to hear the old system but now I hardle know it is on. As a matter of fact, the air coming out of the vents when the system is on is an easier way to know it is working that the noise. It is the same size as the replaced unit but comes on less and runs for a shorter period of time. I have to believe I am saving money here. Am I satisfied? Absolutely. May 13, 2013
Rated 5 out of 5 by Excellent Value and Really Cools Had this system installed and it runs great, is efficient (lowered electric bills) and is a lot quieter than the older system it replaced. Have no reservations about making this purchase. May 9, 2013
Rated 5 out of 5 by It is working well for my home. My Lennox unit that I replaced was almost 21 years old so I would not have replaced it with any other product. I also replaced my old duct work last summer so the new unit is working well. I don't think I have ever felt as much cold air come thru my vents as does now. April 24, 2013

*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

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