Terumo Medical Corporation – Project Gemini

Terumo Medical Corporation is one of the world’s leading manufacturers of medical devices and supplies. Precis developed a master plan for phased renovations to the company’s existing 180,000-sf production facility, which contains a combination of ISO 8 and Controlled-Non-Classified (CNC) spaces. The existing layout had production spaces along perimeter exterior walls, and most of the HVAC used a plenum return, making it difficult to control pressurization, temperature, and humidity.

Precis developed a phased master plan to provide redundant primary air-handling units (AHUs) and flow-control devices to support ventilation, pressurization, dehumidification, preheat, and humidification requirements. In this approach, construction could occur in phases while maintaining production activities. Existing AHUs were utilized to support sensible cooling within each suite. Ducted fan filter units and low wall return grilles were used to provide for additional air turnover.

The first phase of implementation consisted of interior renovations to provide a modern clean room production space and involved providing primary air to the Project Gemini clean room and an adjacent clean room. The total project area of the two clean rooms, utility closet, and adjacent corridors totals approximately 15,300 sf.

The second phase of implementation included adding the third and fourth primary air units, connecting them to three additional production air-handling systems, and replacing and supplementing the existing fan filter units and low wall return grilles to improve space pressurization, temperature, and humidity control.