Trane XL20i Central Air Conditioners | FurnaceCompare®

Trane XL20i Air Conditioner Overview

The Trane XL20i high-efficiency air conditioning unit offers up to 20 SEER performance. This model uses dual compressors to maximize efficiency by consistently operating with the smaller compressor and only using the larger component when the system detects a drastic change in temperature.

According to the manufacturer, the XL20i boasts consistent, quiet operation due to an adjustable fan motor and compressor sound insulator designed to minimize noise. Additional components, including galvanized steel cabinets, a rustproof basepan, zinc-coated fasteners and a powder-paint finish, contribute to the unit’s durability.

This series also is equipped with Trane’s ComfortLink II system, which controls communication between components and can be used to automatically charge, configure and calibrate the unit.

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Consumer Reviews of Trane XL20i


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #12 of 24 Trane Air Conditioner
  • 33.33% of customers recommended

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Trane XL20i Air Conditioner Reviews

Showing 6-10 of 24 reviews

"Poor quality"

1.0 rating
Very Unsatisfied

Bought an entire new $8,600 Trane AC and gas furnace system 5 years ago. Last week the refrigerant line dryer leaked on the compressor unit. Charged me $800 for labor and refrigerant to repair, even though the dryer "part" was covered. Charged $418 to refill refrigerant –not covered under warranty even though the defective line dryer was the cause of the lost refrigerant. Spoke to Trane customer relations. They basically told me too bad, refrigerant is not covered under the parts warranty even though the refrigerant is part of the compressor. No one should consider a Trane product with this deceptive warranty policy.


Tampa Bay area, FL

"Pretty good unit"

5.0 rating
Very Satisfied

I have had the 3 Ton XL20i HVAC system for about 4-5 years now. So far, it has been a really good unit. It is a dual stage AC with a combined SEER rating of 18 or so. It immediately cut our electric bill by about 35% which was great. The outside AC unit is on the wall outside my bedroom and it is super quiet. Performance has been good with no issues to speak of. There was a leak in the line but that was an installation issue and not anything wrong with the unit itself. Once the installers fixed it, it has worked great. About the only thing I don't like about this is the Comfort Link II thermostat. It is not very user intuitive so programming is a pain. It is also a monochrome display so it is not always easy to read. I know the newer models are color and may be easier to program (not sure about that or not). I also don't like that the thermostat control is proprietary and I cannot use something like a Nest thermostat. Overall, I have been pleased with the unit. I do wonder how accurate or balanced this site is though. Having looked at all the top brands, none of them had any sense of balance to the reviews. Virtually every brand I looked through had a 2:1 ration of 1 star to 5 star reviews. So, this seems to indicate that more people with negative experiences are posting reviews as I cannot find any major AC brand with more positive reviews than negative. It's actually why I posted this review as my experience with Trane has been quite positive.

J. Taylor

Austin, TX

"Unhappy in Montgomery, Alabama"

1.0 rating
Very Unsatisfied

I had a XL20i installed in September, 2013. The coils started leaking in less than two years. The cost to replace the coils cost me $754. 00 on August 13, 2015. The initial cost of the unit was $9800. Don't ever get a Trane.

B. Riley

Montgomery, AL

"Run Forrest run"

1.0 rating
Very Unsatisfied

This is the worst piece of scrap ever made. Sadly, Trane knows there are problems with this unit but ignores them. My unit is about five years old. I had one year with no issues then all hell broke loose. I am on the fourth set of compressors. Last year every part in the unit was replaced. This year the problems have begun again. Throw your money in the toilet by getting this junk.

c quinn

Fort Lauderdale, FL

"Top of the line air conditioner"

5.0 rating
Very Satisfied

I have owned this air conditioner for about 5-7 years. I like its seasonal energy efficiency ratio (SEER) of up to 20 and a Comfort-R feature that's great for controlling humidity. For the 7 years I have held this machine it hasn't given me a problem at all. The XL20i boasts consistent, quiet operation due to an adjustable fan motor and compressor sound insulator designed to minimize noise. The only thing that I dislike about this is that I don't get a federal tax discount. But that is okay since I have a great product. I only have done the 5 year maintenance, which is required. I would buy the same product again and I would also recommend this product to my friends as well.

New Milford, CT

Other XL20i Reviews

Homeowners and contractors alike seem to be pleased with the XL20i. Reviews on note how easy the unit is to install, and compliment the unit’s performance and air quality control. and users also comment on the high quality of this unit, stating it’s “at the top of its class.” According to the reviewers, the XL20i’s unique features and components, such as the ComfortLink II system, help set this unit apart from other top-tier units.

However, the same reviewers note this product may not attract all consumers because of the high price point. Threads on support this notion, with consumers stating the price is “overkill” for an air conditioning system.

Trane XL20i Model Numbers

The XL20i is available in different models which vary in efficiency and capacity.

Model Number SEER BTUs per Hour
4TTZ0024A 20 24,000
4TTZ0036A 20 36,000
4TTZ0048A 20 48,000
4TTZ0060A 20 60,000

XL20i Warranty

Consumers must register their product online or by calling 1-800-554-6413 within 60 days of installation. Trane’s warranty coverage includes a:

  • 12-year warranty on compressor;
  • 10-year warranty on outdoor coil; and
  • 10-year warranty on internal functional parts.

An option to purchase a transferable warranty and extended coverage through a Trane independent contractor also is available.

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