Case study

Optimizes Operations with New 320-Ton Chiller Plant

Flexible materials manufacturer, Sheldahl, was faced with a critical need to upgrade a worn-out 320-ton cooling system within their expansive 7,500 square foot manufacturing cleanroom.

Initially scoped as a design/build contract with CMTA, the need for a mechanical contractor to construct and install the controls of the upgraded system transitioned the project to a more traditional construction path alongside Gilbert Mechanical.

The teams collaborated to install the new chilled water system, resulting in an estimated $8,000 of annual energy savings, a 15% carbon emissions reduction, and an extended invitation by Sheldahl for additional services to upgrade a heating system in their cleanroom air handling system.

Customer Needs

Sheldahl’s priority was ensuring uninterrupted manufacturing operations with zero downtime and adhering to a carefully managed budget.  

The benefits of the upgraded chilled water system included:

  • Energy efficiency
  • Redundancy benefits
  • Temperature control capabilities
Key Strategies Implemented

CMTA engineered a detailed plan for the conversion of Sheldahl’s outdated system to a new energy-efficient central chilled water system to ensure seamless manufacturing operations with zero downtime.

Gilbert handled all aspects of mechanical, electrical, and HVAC controls construction, collaborating closely with CMTA to meet project deadlines and stay within budget.  

Key elements of the project included:

  • Installation of a new 320-ton chiller plant  
  • Chilled water piping system  
  • Upgraded cleanroom HVAC controls  
  • Replacement of existing refrigerant coils

This collaborative effort between CMTA and Gilbert not only improved the efficiency of Sheldahl’s facility but also yielded substantial cost savings and environmental benefits, including:

  • $8,000 annual energy savings
  • 15% reduction in carbon emissions
  • $10,000 in energy rebates
Consulting Engineering
Energy Solutions
MEP Contracting
Fabrication, Process, + Controls
Northfield, MN
project size
7,500 SF
Year Completed
Net Zero incentives

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