Building Controls Group

The PENN System 550 is the first commercially available controller that combines temperature, humidity, and pressure control with A2L refrigerant leak detection and mitigation and optional cloud-based connectivity. The System 550 is designed for versatility. Customers can mix and match control and expansion modules with relay outputs, analog outputs, or both, to meet their application needs.

The System 550 provides single or multi-stage on/off, proportional or proportional plus integral control. Customers can plug in relay expansion modules and analog expansion modules to increase the number of outputs up to ten outputs.

Tridium will have a price increase on January 1st, 2026.