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 16-20 of 24 reviews

"Poor reliability and poor performance"

1.0 rating
Very Unsatisfied

Top of line unit for Trane installed for 18 months. Two failures, one an installation problem and one a failed coil. Trane replaced the coil under warranty, but labor costs not covered. Biggest issue has been that the unit is not noticeably any more efficient than the 12 seer unit it replaced.

G. Jefferson

Houston, TX

"Great unit since 2009"

5.0 rating
Very Satisfied

Our builder's unit finally went out after 6 years. Purchased the XL20i after considering competing models from other manufacturers. Completely satisfied. After five years the only problem was a leak at the solder joint. Not an equipment problem but an installation problem. Had warranty, so no cost to me.

Ron Wirsing

Havre de Grace, MD

"The Service Warranty Worst Ever"

1.0 rating
Very Unsatisfied

It's the worst unit I ever bought in 2010. Brand new one.

N Dawood



1.0 rating
Very Unsatisfied

Last year I wrote telling buyers beware of this unit after both compressors failed and had to be replaced within the first year. Now after another year the insulation inside the coil box has fallen down and prevented the unit from cooling. Wishing I had never, never purchased this system. Good luck to anyone who opts to buy this system! Hot in Texas

Mel Ashton

Denton TX

"Do Not Buy Trane, you will be sorry!"

1.0 rating
Very Unsatisfied

Bought top of the line, expected it to actually work – never has. We get lots of communication errors, about 3-4 times per week the unit stops working temporarily due to those ongoing issues that nobody has been able to fix. Authorized dealer gave up and won't return my calls. Tried Trane directly but they do not care. Have also had 3 compressors and several controller boards replaced in the 2 years we've owned it. Meanwhile the 3 American Standard 15 year old units we have are chugging along with no problems. Do Not Buy Trane!!!!


Seacrest, FL

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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