Commercial Office · Boston, MA

Advanced energy-efficiency solution cuts HVAC energy use by 33%.

FMC Technologies helped Hold Thyssen right-size the controls at 55 Thomson Place with a custom energy management system, delivering measurable savings in the first year.

55 Thomson PlaceBoston Seaport, MA

33%

Energy reduction

Terminal boxes networked

Rooftop units

0.65MWh

Saved per year

The challenge

Excessive electricity usage from uncontrolled HVAC systems.

With hundreds of commercial properties throughout the US, Hold Thyssen prioritizes energy efficiency. The property at 55 Thomson Place was not meeting those expectations. The all-electric HVAC system was likely the source of the building's unusually high electricity usage.

The HVAC system consisted of three rooftop units and 84 fan-powered terminal boxes with electric reheat coils, all with separate control systems. Hold Thyssen wanted to understand why the system was underperforming, gain visibility into its operation, and simplify its management.

Before implementing the EMS, there was no way to see when the 84 terminal boxes used the electric reheat coils, or to enact system-level limits on coil usage based on outside air conditions. It is likely the terminal boxes were using the coils day and night throughout the entire year.

The solution

Full BACnet integration with advanced energy sequencing.

FMC networked all 84 terminal boxes using BACnet controllers and integrated to the BACnet communications cards in the rooftop units. This custom EMS provided advanced energy sequencing that allowed for temperature setbacks when the building is unoccupied, optimized start/stop, and discharge air temperature resets on the rooftop units.

By bringing all the HVAC equipment under direct digital control, FMC transformed 55 Thomson Place into a fully optimized, responsive energy management system.

The results

A 33% reduction in HVAC energy consumption.

Immediate, measurable results.

Through the custom EMS implementation, 55 Thomson Place achieved a 33% reduction in HVAC energy use, saving approximately 0.65 MWh annually. The advanced energy sequencing delivered immediate, measurable results while giving Hold Thyssen full visibility and control over their building's performance.

“We had our FMC system installed in February of 2018. The system is user friendly with excellent graphics. Our goal was to maximize the system's potential to help us achieve energy savings and gain better control. The system achieved both and gave us a considerable reduction in energy.”

— Paul Lanza, Hold Thyssen

Let’s talk

Wondering what your building's 33% looks like?

Every building has its own version of this story — different HVAC, different bills, different places the money is leaking out. We'd be glad to walk yours and tell you where we'd start.

Talk to FMC

Or call 978·856·7862