Coronado Hospital



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Capital Upgrade - Building Automation System (BAS) Retrofit

Not Started

FY 2024




Roughly 90% of building terminal equipment is operating on a pneumatic system with the exception of OPP and operating rooms. This aging infrastructure is able to nominally maintain space conditions, but its maintenance and risk to building operations will grow over the next few years. Replace all pneumatic terminal devices & upgrade the constant air volume boxes to a variable air volume (VAV) box with a new heating coil that is sized for the new heating hot water plant. Having centralized digital insight and control of these terminal units will allow for:
- Better management of space conditions affecting patients and staff
- Proactive maintenance of terminal units by removing aging infrastructure and allowing computer-based troubleshooting
- Ability to shut off or setback non-critical spaces during unoccupied hours
- Ability for primary equipment to stage and react to the building load throughout the day and seasons, allowing for resets on static pressure, chilled water (CHW) temperature, and heating hot water (HHW) temperature.

Note: Costs reported for this measure are based on pursuing this upgrade as a single project, but BAS and terminal equipment can be upgraded as spaces are renovated. This sequential approach will require much tighter standardization across projects & may potentially expose Sharp to maintenance and operational risks as well as utility waste.

Additionally, costs are based on transitioning the project from a sole source provider (Siemens) to multivendor platform (Niagara) which will require new controllers for central equipment. If Sharp desires to stay with Siemens for this project, some central equipment controllers may be re-used, but total lifecycle costs will likely rise due to a non-competitive bid and service environment.


See above Description.