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South 405 Place

Project:

  • 53,553 ft2 3-story Building
  • 17,274 ft2 "open" Parking Garage

Site Location:

  • Renton, WA

Team:

  • Owner - John C. Radovich Development Company
  • Architect - LPN Architects
  • GC - Foushee
  • HVAC - PSF Mechanical, Inc.

Major Tenants:

  • Universal Underwriters Group
  • Pacific Laser Vision
  • University of Phoenix
  • Prudential Insurance Company

HVAC Systems:

  • Medium temperature variable air volume (VAV) systems utilizing one Mammoth 78 series Ultraline rooftop unit
  • Series type VAV boxes with silent mercury contactors (Terminal boxes use electric heat)
  • Communicating electronic ddc system with modem remote access
  • Ceiling transfer fan for elevator machine room exhaust
  • Raised curb sound attenuating system at rooftop unit
  • Evaporatively cooled condensing sections for high efficiency

Energy Saving Strategies:

  • Variable speed (inverter) driven supply and relief fans for Mammoth Ultraline unit result in both energy savings and very accurate control of duct and building static pressure
  • Direct digital controls provide accurate temperature control, minimizing drift and overshoot: Heating signals are ‘pulsed’ to exactly match the load

System Benefits/Goals:

  • Variable speed (inverter) driven supply and relief fans for Mammoth Ultraline unit result in both energy savings and very accurate control of duct and building static pressure
  • Direct digital controls provide accurate temperature control, minimizing drift and overshoot: Heating signals are ‘pulsed’ to exactly match the load