BX (Building Control System)

BX (Building Control System)

Taking Back Control

  • E2 BX Series controllers are easy to work with;
  • Enables rooftop units (RTU) to be controlled based on a specific temperature-sensor reading;
  • Create zones of variable heating or cooling to meet specific demands and cycle heating and cooling stage to maximize energy savings, while maintaining the correct temperature and relative-humidity setpoints.

Power Monitoring

  • Maximizes building comfort levels while minimizing wasted energy;
  • Monitors and regulates power usage;
  • Comes with extensive demand shedding features and detailed power-usage logs to help you spot trends and optimize performance.

Lighting Control

  • Combines results from time schedules, light-level sensors and override buttons;
  • Determines whether your lights are illuminated, optimizes your lighting needs and provides you with timed overrides;
  • Employs push button control.


  • Seamlessly interfaces with third-party devices using Echelon, Modbus and BACnet;
  • Integrates and controls devices with a single controller.

HVAC and Indoor Air Quality (IAQ)

  • Monitors and controls IAQ in HVAC applications to meet ASHRAE standards;
  • Reduces energy usage and expenses using advanced algorithms to bring in and condition only the required amount of outside air.

The "Intelligent" Advantage

  • Reduces annual maintenance costs by interfacing Lennox commercial RTUs directly with E2 BX through Emerson Climate Technologies’ Intelligent Store™ architecture, allowing users to adjust setpoints and view over 100 error codes;
  • Eliminates the need for additional proprietary controllers and costly technician visits.

Click link for a product data sheet on this product.

Click link for the E2's user manual detailing programming and installation instructions.