Foundation® Rooftop Units

3 - 5 Tons / 7.5 - 12.5 Ton / 15 - 25 Tons

Foundation® Rooftop Units

Foundation® Rooftop Units

3 - 5 Tons / 7.5 - 12.5 Ton / 15 - 25 Tons

Key Features

  • 3 - 5 Tons / 7.5 - 12.5 Ton / 15 - 25 Tons
  • Designed for easy like-for-like replacement
  • Reliable, efficient performance and a great value
  • Broad capacity range adds to appeal
  • Super-fast shipping and installation
  • App-based parts ordering
  • Financing available
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Get Your Rooftop Replacement Off on the Right Foot with Trane® Foundation™

Designed for plug and play replacement, Foundation rooftop units fit a wide range  footprints making it easy to replace competitor units as well as other Trane models – without the need for curb adaptors.

Quick, easy and efficient like-for-like replacements that save you and your customers time and money. Talk about simple. HVAC, ASAP. 

Want More Foundation Performance?

Trane introduces the new Medium Foundation

7.5 – 12.5 Tons

Readily available units in stock with same day quick shipment options

With a stringent inventory management strategy that stocks locally available equipment, Trane makes sure these rooftop units are close to your customer's site and ready to ship when you need it – often delivered on the same day.  The Trane 360 mobile app also streamlines the quick replacement process – making it easy to purchase parts directly from your mobile device. 

Competitively priced - Exceptional reliability and efficiency

For the basics done right, look no further than Trane Foundation rooftop units. Simply designed, highly dependable, easy to install and competitively priced for outstanding value.

  • Long-life compressors for years of dependability
  • Tubular heat exchanger maximizes heat transfer
  • Ability to detect slow refrigeration leaks
  • Electrical phase monitor prevents operation due to loss of phase, phase reversal and insufficient voltage
  • Microchannel condenser coil
  • Reliable gas ignition system
  • AHRI® Certified
  • Digital controls simplify installation, troubleshooting, service and support  

Broadest light commercial rooftop offering around in 3 - 25 Tons

No matter the capacity requirements or commercial application, Foundation rooftop units are a dependable choice for a broad range of small to medium-size buildings. 

With the addition of new Medium Foundation with midsize tonnages, Trane’s 3 – 25 Ton Foundation rooftop units provides the broadest light commercial rooftop offering in the industry.

Designed for immediate, like-for-like retrofit applications, Foundation makes competitor replacement a quick and easy win for contractors, business owners and facility managers alike. 

Start Your Next Replacement with a Foundation unit:

Small Foundation: 3 - 5 Tons

Medium Foundation: 7.5, 8.5, 10 & 12.5 Tons

Large Foundation: 15 - 25 Tons



Need it now? Get it fast

Gotta a customer who's business is down because of an HVAC equipment failure? Trane's local Commercial Replacement Solutions team is dedicated to providing a fast, accurate quote, locating a local Foundation unit that meets your requirements  and scheduling a delivery quickly – often the same day you order it – from local Trane office inventories. Contractors can count on Trane to partner with them to meet their immediate rooftop replacement needs with a quick plug and play rooftop unit like the Foundation. 

Trane 360 Mobile app makes Foundation orders convenient, efficient for you

Trane’s 360 Mobile App streamlines service and maintenance.

Use it to order parts, see product information and order history, even get directions to the nearest parts store. 

Product Literature