Retrofit Design


411 East Wisconsin Center, Milwaukee, WI – 611,000 sq.ft., 31 story office building
Retrofit design of 519 point DDC Building Automation System. Retrofit design of mixed air plenums of eight 70,000 to 84,000 CFM variable air volume systems to dramatically reduce cold air stratification problems. Design included replacement of outside and return air dampers, installation of new airflow stations measuring outside air, supply air and relief air quantities. Designed a supply/exhaust tracking control system for large variable pitch in motion relief fans to reduce building pressurization problems during periods of free cooling (1998-99).