Client
3 Lagoon
Sector
Corporate Offices & Tenant Improvements
Location
Redwood City, CA
Scale
5,000 SF
Delivery
Design Build
Design Team
AP+I, PAE Engineers, Silicon Valley Mechanical
Features
Hydronic Conversion · Two 60-Ton Air-Cooled Chillers
Project Details
Overview
A full mechanical modernization of a four-story biotech facility in Redwood City. The aging direct expansion cooling system was converted to a high-performance hydronic cooling system centered around two new 60-ton air-cooled chillers. The work happened while the building's sensitive labs stayed in operation.
Scope
Installation of two rooftop chillers, primary and secondary pumps, and chilled water piping to all four floors. DX coils in multiple air handling units were replaced with hydronic coils and integrated into the Building Automation System. Structural modifications supported the new piping, chiller skids, and buffer tank. Construction was phased through winter to leverage the building's economizer system, with multiple crane picks managed through the rainy season without breaking watertight integrity.
Outcome
A more efficient, reliable, and sustainable cooling system delivered without disrupting the biotech labs running on the floors below. The new hydronic system replaced an aging DX setup that had been past its useful life. Operations stayed online through every phase of the build.
