Harmonizing the science of Engineering with the art of Architecture
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Retro-Commissioning Study
The Greenbusch Group was retained by the City of Seattle to provide retro-commissioning services related to Air-Handling Unit 1 (AHU-1), AHU-2 and associated HVAC systems at the renovated Seattle Animal Shelter. Results from testing pinpointed the cause helping the owner to prioritize next steps.

“Commissioning is where engineering becomes real. Until the project is built, it’s just lines on a paper. Every project is unique. Determining why something isn’t working or how a system could be optimized in the real world and collaborating with others to enact solutions, is interesting and rewarding.”
- Dylan Turner, PE, CCP, LEED AP® BD+C
Associate Principal
Seattle Genetics is a premier biotech company that develops cancer treatments. Over the past several years Greenbusch has provided Cx services for many of their renovated campus buildings and lab spaces including Buildings 1, 3, 4 and 5:

Seattle Genetics Building 1 - Special Lab Expansion
- System Readiness Checklist, Startup, Data Sheets Provided
- Fire Detection (HVAC Interface)
- HVAC Airside & Wetside Controls: DDC/BMS
- Lighting & Lighting Controls
- Laboratory Gasses / Emergency Eye Wash
- Renovation / Retrofit / Tenant Improvements
Greenbusch provided Cx services for a $8.4 million, 76,000 SF renovation of a Transit Vehicle Operations and Maintenance Base, targeted LEED Gold.

Project Scope: Fundamental (EA Prerequisite 1) and Enhanced (EA Credit 3) Cx services.
Systems Commissioned: Rooftop HVAC Units, Vehicle Maintenance Air Monitoring, Heat Recovery Ventilation, VRF Units, VAVs, Hydronic Heating, Boilers, Heating Water Distribution, Emergency Generator, Lighting Controls, DDC.
For more information about commissioning, please contact Dylan Turner at (206) 378-0569.
Greenbusch provides technical expertise in commissioning, acoustical engineering, audio/video consulting, mechanical engineering and vertical transportation design. Established in 1989, Greenbusch is a certified State of Washington WBE.


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