Bosch Thermotechnology has introduced its Heatronic 4000 commercial boiler control for producing and maintaining a set target temperature in up to four boilers. The Heatronic 4000 controls and monitors both condensing and non-condensing commercial boilers that have modulating, single-stage, two-stage, and dual fuel burners. The company claims the BacNet® and Modbus® compatible burner controller allows for a more flexible, cost-effective mixed boiler plant solution, providing better system control, energy efficiency and overall boiler performance.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.