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Redmond Software Campus, Building 87

Project:

  • 100,000 ft2 Office Space
  • Single-story Tenant Improvement

Site Location:

  • Redmond, Washington

Team:

  • Construction Manager - Olympic Associates
  • Architect - NBBJ
  • General Co. - Skanska USA
  • HVAC, design/build - PSF Mechanical, Inc.

HVAC Systems:

  • Under Floor Air Delivery System with swirl VAV & CV Air Terminal Diffusers
  • Perimeter Air Delivery System using underfloor low-profile series flow fan terminal units with electric heat
  • Tree indoor mechanical rooms with central VAV air handlers
  • Critical room dedicated split system units with redundant building VAV system
  • Central chilled water system with pad-mounted air-cooled 240 ton chiller

Energy Saving Strategies:

  • Under Floor Air Displacement system reduced cooling tonnage and air flow rates result in fan energy savings
  • VFD’s for all air handling unit fans (supply and relief)
  • ECM motors for all fan terminal units
  • "Free" cooling with economizers on all AC units; warmer discharge air temperatures result in reduced mechanical refrigeration operating hours

System Benefits/Goals:

  • Under floor building pressure sensors are utilized to control air flow throughout the 30" high space
  • DDC provides accurate temperature control for consistant space comfort
  • Building energy consumption is reduced via the use of low pressure fans and distribution systems
  • Enhanced indoor air quality: displacement ventilation concept carries indoor pollutants up and away from the occupied zone, resulting in increased ventilation effectiveness
  • Underfloor plenum allows for technology flexility: re-wiring, relocating may be accomplished without working on other floors
  • Warmer supply air results in lower space relative humidity: more comfortable and more healthy environment

 

 

Our Customer's Comments:

"PSF listened for what the client wanted and did it."
Jessica Hickey
Olympic Associates