Modernize Your Building's Legacy BCU or Summit System

Upgrade aging BCU or Summit controllers easily with Trane's backward-compatible solutions, minimizing disruption and costs.

Watch How Easy It Is

Upgrade easily: Remove your controller, install Tracer SC+, connect to system/network. Installation often completes in a day, depending on setup.

Lower Costs

Potentially reduce upfront expenses and gain energy efficiency.
Easy Transition

Designed for quick, minimal-disruption installation.
Reliable Support

Access local Trane professionals for timely support.
Backward Compatibility

Often eliminates the need to replace your entire system.

All we had to do was upgrade our main building control unit (BCU), and wow—suddenly we had a powerful system we could access from anywhere, on any device.

Facilities Manager K–12 District
By upgrading our front end, we now have a virtual AI operator monitoring our legacy system

Warehouse Manager University (CRE)
Our tenants didn’t even notice the upgrade—but they definitely noticed improved comfort and facility support.

Building Manager Commercial Real Estate
I can now rely on Trane’s connected services to securely monitor my hospital and advise me on energy efficiency strategies.

Facilities Director Healthcare
After upgrading our BCU, our aging chiller plant is now operating more efficiently than ever.

Plant Engineer Manufacturing Facility

Our team is ready to help you plan a smooth, cost-effective upgrade.