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Trane ComfortSite is an extranet site designed to save you time. With your secure login, you can:

  • Order Equipment, Parts, Literature and track Order Status
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  • Complete Warranty requirements online
  • Search for specific Product Information
  • Use interactive Product Support functions
  • View and print invoices through Account Track Online
  • and More
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Trane Connect

This is the login for Trane® Connect™ and other Trane® commercial applications. Trane® Connect™ is our secure, cloud-based customer portal to access your building systems to remotely monitor and manage building systems, and conduct routine maintenance.

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The world is our building. Let’s engineer it together.

Supporting Engineers who are designing the future. 

Trane Commercial Building Systems

Pre-engineered for efficient and cost-effective electrified solutions

Comprehensive Chilled Water Systems

Comprehensive chilled-water systems employ best practices in chiller plant design that align with current industry guidance for achieving high performance cooling, heating, and ventilation, all while reducing first cost.

Comprehensive Chiller-Heater Systems

Trane® Comprehensive Chiller-Heater systems, featuring electric heat pumps, provide cost-effective, energy-efficient, reliable cooling and heating, while reducing carbon emissions. We offer multiple options and variations, so that more buildings in more places can maintain year-round comfort while working to reach their decarbonization goals.

CoolSense® Integrated Outdoor Air Systems

The CoolSense® pre-packaged HVAC design system combines a dedicated outdoor-air system (DOAS) with chilled-water sensible-cooling terminal units to deliver a flexible, energy-efficient solution that enhances comfortable spaces and simplifies maintenance.

Intelligent VAV Systems

Trane Intelligent VAV systems simplify the design and implementation of systems that HVAC designers typically consider complicated and time-consuming. With new technologies and optimized controls, these systems are 20% to 30% more efficient than traditional multiple-zone VAV systems.

Thermal Battery Systems

Trane Thermal Battery™ systems are premier HVAC plants that provide a distributed resource for our changing grid. Their ability to store thermal energy enables your building to reliably modify HVAC operations to optimize for carbon reduction or energy cost savings.

Variable Refrigerant Flow (VRF) Systems

Regardless of the capacity, energy efficiency, functionality or performance-monitoring requirements, our VRF Systems Solutions, featuring Trane® / Mitsubishi Electric VRF Technology, are designed to exceed the comfort and sustainability goals established for commercial building projects.

Zoned Rooftop Systems

Ideal for small buildings, Trane® Zoned Rooftop Systems provide cost-effective options to increase comfort and energy efficiency, while simplifying operation and maintenance. These packaged systems make advanced functionality affordable and easy for non-technical users to operate.

From our desks to yours

Consuming and sharing relevant and timely industry updates is pivotal to your success meeting customer goals and staying aprised of technology and trends in buildings today. And it's key to our success as a partner in your work. Find below a sampling of the latest spotlight resources and training for you to simplify professional development, in a meaningful way. 

Engineers Newsletter

[Engineers Newsletter] Hydronic Variable Refrigerant Flow HVAC Systems

As heating and cooling account for 30% of CO2 emissions in commercial buildings, building owners are making efforts to decarbonize in hand with the shift to lower Global Warming Potential (GWP) refrigerants. This Engineers Newsletter will introduce an additional variation of VRF heat pump systems and their benefits in moving towards a decarbonized world.

Read the Latest EN

[Now Available] TRACE 3D Plus Version 6

TRACE® 3D Plus Version 6.00.106 has been released! This latest update is focused on added functionality, enhanced editing options, and more. Update your software to take advantage of the latest enhancements, or for new users, explore how TRACE 3D Plus can add efficiency to your system design process.

Explore Now

[On-Demand Webinar] Geothermal and Thermal Energy Storage Systems: Opportunities to Decarbonize

This webinar will explore advantages and disadvantages for commercial building geothermal and thermal energy storage solutions. Presenters will discuss key application considerations for distributed and centralized geothermal systems including a review of equipment. Thermal energy storage economics, cooling and heating system applications will also be discussed.

Watch On-Demand

Sign-up for Engineer News Updates

Before progress happens in the world, it happens in the minds of engineers.  Inspire your minds and follow along with the latest industry updates, innovative product solutions, and educational opportunities for your unique development needs.

On-Demand Webinars for Engineers



How to Make Any Building A Smart Building
A strong smart building foundation starts with 4 key areas: connectivity, cybersecurity, serviceability, and resilience. Addressing these through building controls and automation is the key to creating spaces that prioritize performance and energy efficiency without sacrificing occupant comfort.
IRA Investment Tax Credit: Opportunities to Decarbonize


Geothermal and Thermal Energy Storage Systems: Opportunities to Decarbonize
This webinar will explore trend shifts in the market to incentivize geothermal and thermal energy storage. Presenters will discuss key application considerations for distributed and centralized geothermal systems including a review of equipment. Thermal energy storage economics and cooling and heating system applications will also be discussed.
Holistic HVAC


Energy Cast Podcast

Read the Latest



Meet Trane’s CDS Design and Analysis Tools
Designing mechanical systems for commercial buildings requires managing small details, big decisions and complex analysis – all while keeping building owners happy. Trane’s suite of CDS Design and Analysis tools are purpose-built to support your design process from initial system selection and concepting, through energy load analysis and detailed design development.


Trane Engineers Newsletter: Hydronic Variable Refrigerant Flow Systems
In this Engineers Newsletter (EN), Trane spotlights hydronic variable refrigerant flow systems; the next generation of all-electric heat pump systems that can help achieve building decarbonization goals, while satisfying upcoming demands for reduced refrigerant charge.