Project Portfolio


Sutter Roseville Medical Center AHU-10 Replacement


Sutter Roseville Medical Center


Roseville, CA


HGA Architecture

Mechanical Engineer

Frank M. Booth, Inc.

Year Complete


Contract Type

Design Build

Mechanical Contractor

Frank M. Booth, Inc.

Project Overview

Replaced 140,000 CFM active built-up fan room located in the penthouse to eliminate the risk of a single fan failure at the hospital which could shut down the entire patient tower. 

Updated airside with a FANWALL array, while maintaining 140,000 CFM airflow in the building during the project.

Mechanical Highlights

  • HVAC FANWALL design: two banks of FANWALL arrays, each five-wide by three-high.
  • Redesign of ductwork and plenum walls.
  • Relocation of piping to accommodate the new system.
  • Relocation of major supply duct serving the birthing center.
  • Fabricated and assembled platform in shop to keep on-site welding to a minimum.
  • FANWALL arrays were assembled on each side of the existing vane axial fan before it was removed.  Each FANWALL array discharges into a common plenum that is ducted to cool or heat the building.
  • FANWALL control system integrated into the existing Siemens Talon building automation system.

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