Chiller Plant Expansion
Sioux City, Iowa

As the Mercy Medical Center grew, their need for a dependable, responsive, an innovative mechanical system became their priority. They could not keep up with cooling loads and they did not have the proper emergency response systems in place. To satisfy this need, RMS was hired as the prime contractor to design and install a new chiller plant, diesel generator, building automation, and emergency response system. The renovation was completed in 2011 and RMS provides services to the Mercy Medical Center to this Day.
6 months of design and 8 months of construction.
The chiller plant was located off-site and needed a tunnel to supply chilled water to the Med Center.
Innovative emergency control system installed to detect refrigerant leaks in the building.
Honeywell Spider Controls were installed on existing mechanical equipment.
0 incidents.
About US
Rasmussen Mechanical Services is a full-service mechanical contractor with over 55 years of experience supporting commercial and industrial facilities. Our teams work across a wide range of mechanical systems, providing the knowledge and field experience needed to complete projects of varying size and complexity.
Each project we take on is approached with careful planning, clear communication, and a focus on quality execution. Our crews are experienced working in active facilities, coordinating with other trades, and adapting to site-specific conditions to keep work moving efficiently and safely.
From initial coordination through project completion, Rasmussen Mechanical Services remains focused on delivering dependable results that support long-term system performance. This project reflects our ongoing commitment to practical solutions, skilled workmanship, and consistent execution across every job we perform.
- Design Build
- HVAC
- Mechanical Construction
- Temperature Controls

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