Northwestern Memorial Hospital's Prentice Women's Hospital

OBJECTIVE

Northwestern Memorial Hospital’s effort and commitment to bring ecological benefits to their newest building and the surrounding neighborhood, Prentice Women’s Hospital was designed to be a green building – “An eco-friendly facility that would improve the health of patients and positively impact the environment”.

The engineer’s objective was to decrease operating static pressure by implementing EBTRON airflow measurement on all VAV return air valves.  Outside airflow measurement was added on system serving the boiler room for dilution.

EBTRON’s local representative Energy Improvement Products, Inc. (EIP) supported ESD specifications and coordinated installation requirements with Johnson Controls and the ventilation contractor who fabricated duct sections with EBTRON AFMS and TAMCO dampers at their facility.

RESULTS

With EBTRON Advantage airflow stations, Prentice Women’s Hospital meets the requirements of ASHRAE 62.1-2004/2007 and the International Mechanical Code ventilation requirements, reduces energy costs and accomplishes their mission to create the best environment possible for care, diagnostics, patient services and education.

Evaluation of installation from Michael L. Smith, Project Manager, Johnson Controls, Inc.: “The big advantage to utilizing the Ebtron Silver Series in the Return Air Valve Application proved to be flexibility.  The manufacturer’s recommended laying lengths (upstream and downstream) were often impossible to meet with the amount of other services in the ceiling.  Ebtron Silver Series AFMS’s delivered accurate and repeatable air flow measurement under less than ideal ductwork configurations.”

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