Project:

• 50,790 ft² 3-story Tech-Flex Facility
• 33,860 ft² 2-story Parking Garage

Site Location:

• Bellevue, WA

Team:

• Owner - Metzler North America
• Architect - Baylis Architects
• GC - Baugh Construction
• HVAC - PSF Mechanical, Inc.

HVAC Systems:

• Office - standard temperature variable air volume (VAV) systems utilizing two Aaon Twinned rooftop units
• Nailor series and shut-off type VAV terminal boxes, fan powered terminal boxes use electric heat for the perimeter and second floor; first and second floor interior office areas have VAV shut-off type
• Communicating electronic direct digital controls system (LonWorks/Echelon)
• Central toilet exhaust systems utilizing quiet utility-set type rooftop centrifugal fans
• Raised curb sound attenuating system at rooftop units
• 100% airside economizers
• Efficient pleated filters
• The parking garage utilizes multiple enclosed prop type exhaust fans placed at strategic perimeter locations

Energy Saving Strategies:

• Variable speed (inverter) driven supply fans for Aaon Twinned units result in both energy savings and very accurate control of duct static pressure
• Premium efficiency motors used throughout
• Direct digital controls provide accurate temperature control, minimizing drift and overshoot
• 100% modulating airside economizers
• High efficiency scroll compressors

System Benefits/Goals: