Explore Thermafit® MAS

Trane has launched the new Thermafit® Air-Source Modular Multi-pipe unit, model MAS.

Article content provided by Trane.

MAS provides simultaneous heating and cooling with all the benefits of Thermafit® modular design for ease of install in new and existing buildings.  

  • This sustainable, all-electric solution can reduce carbon footprint by reducing or eliminating the need for traditional fossil fuel boilers. 
  • Three modes of operation: cooling, heating, simultaneous
  • 30-ton (433 MBh) modules can be banked together with up to 10 modules for larger capacities or future expansions (up to 300-ton bank/4330 MBh heating). 
  • Easy to apply into buildings: no cooling towers, geothermal, complex infrastructure required.
  • Vapor injection scroll compressor with advanced defrost capabilities for cold climate operation. 
  • A redundant, modular design eliminates single points of failure to support continuous operation.  
  • Next-generation, low-GWP refrigerant R-454B. 

Learn more here. 

Have a question for Trane? Contact us here.

Trane creates sustainable, energy-efficient systems for commercial and residential projects. Contractors can count on our expertise, partnerships, as well as tools and resources to get the job done.


Dec 19, 2024 Products & Services Update

Latest Articles


Protect Your Labor, Schedule, and Budget

Jun 11, 2026 - Streamline how you monitor labor and equipment performance to help keep your projects moving and your margins protected.


Fire Resisting Ductwork Specialists

Jun 8, 2026 - We developed our CASWELL FIRESAFE® Brand in 2003, which is now sold internationally through our carefully selected network of Licensed Manufacturing Partners.


FastDUCT HVAC Estimating Software: Bid More Today!

Jun 8, 2026 - FastDUCT simplifies HVAC estimating with accurate pricing, industry-standard labor rates, and seamless integration, helping contractors save time and deliver precise, competitive bids faster.