Fortune 15 Telecommunications Company


Switch Room 3 Addition


Mechanical & Electrical
Architecture & Interiors
Construction Management
Fire Protection


Norton, Massachussetts




$4 million

Designing N+1 Redundant MEP Systems to Support a Switch Room

Our client’s goal for this project was to convert existing control and training rooms into a new 2,000-square-foot raised-floor switch room that could support systems and functions that are critical to telecommunications operations. The sheer volume of digital information this carrier transmits to its clients through their network requires powerful equipment.

To operate reliably and efficiently, these systems required strict environmental control with supporting HVAC equipment installed both inside and outside the new switch room.

We designed N+1 redundant MEP systems that support 150 watts per square foot with a Liebert DSE Computer Room Air Conditioner that provides humidity control using the raised access floor and ceiling plenums for air distribution.

This included a new OptiCool indoor chiller pack and refrigerant pump systems (ICPs and RCPs) for further environmental control.

We added ICP and RCP condensers and HVAC equipment servicing the switch room to the roof of the facility, supported by a 1,200-square-foot structural platform. This platform includes a louvered screen wall to shield the equipment from outside view.

A new FM200 fire protection zone above and below the room’s raised access floor as well as modifications to the building’s pre-action sprinkler system to provide protection for the new switch room.