San Jose City Hall | San Jose, CA


The client had an antiquated Honeywell Building Automation System that needed to be upgraded. Sunbelt Controls developed a solution to upgrade the City Hall three-building complex to a state-of-the-art Distech Controls BAS. The project involved multiple buildings (Rotunda, Council, and Tower) and required multiple phases to complete the conversion from Honeywell to Distech Controls.


  • Conversion of legacy DDC controls to brand new, IP-based controls
  • New Graphical User Interface complete with state-of-the-art graphics
  • New IP-based BAS network spanning multiple buildings including a High-rise tower
  • UUKL control/monitoring of critical life-safety equipment
  • Project phasing included Normal Day Time working hours and Night/Overtime working hours
  • Replace existing critical infrastructure with the latest and greatest


  • Installed state-of-the-art Distech Controls Building Automation System.
  • Web-based Graphical User Interface with enhanced three-dimensional graphics
  • IP Based controls that reside on a high-speed Ethernet network
  • DDC Control of advanced HVAC Systems, including Air Handling Units, Variable Volume Boxes, Fan Coil Units, Exhaust Systems, Computer Room Units, Hot Water Plant, and Chilled Water Plant
  • Implemented Title 24 Energy-savings programming and control
  • Monitoring and control of critical life-safety systems with separate UUKL-rated network and controls
  • Retrofitted complicated Fire Fighter’s Override Panel
  • Monitoring of critical systems, like Fire Life Safety System, Generator, Sewage Systems

Project Team

Owner/Occupant: City of San Jose

Product Solution: Distech