Connecticut Orthopedic Specialists in Branford is a multi-phase medical project with both renovation to the existing facility and a new addition. The facility provides orthopedic healthcare to adults and children including urgent care walk-in, MRI, physical therapy and surgical procedures.

In the first two phases of work, Controlled Air, Inc. installed two Carrier high efficiency gas electric roof top units on standard 14” insulated curbs with slope, to match their existing roof pitch. The RTUs have multi stage cooling with barometric relief and MERV 7 filters. Units are equipped with factory controls along with BacNet interface that tie into a new Johnson Controls FX system.  In addition to installing the RTUs we manufactured and installed the supply and return duct distribution system.

In the second phase, Controlled Air, Inc. installed a Carrier heat recovery VRF system for the new surgery recovery rooms, which consisted of eight ceiling mounted recessed evaporators and one outdoor condensing unit with a single and central controller. For additional energy efficiency, an Energy Recovery Unit (ERV) with a supply and return duct distribution system was added.

In the third phase Controlled Air, Inc. furnished and installed three AAON roof top units with filter curbs and HEPA filters, serving the new operating rooms and clean room. These units include high gas heat and multi stage cooling. Additionally Controlled Air, Inc. manufactured and installed the necessary supply and return-duct distribution system with Nortec steam humidifiers and HEPA grills. Each operating room was equipped with thermostats, humidistats and room pressure monitoring sensors. Multiple fresh air and exhaust fans with hood systems were installed for the oxygen storage rooms and clean rooms.

To accommodate the new system our controls department upgraded the existing FX-30 web based supervisory controller to a new FX-80. All the new equipment was tied into the new system by our in-house controls department.

When making renovations to an existing medical center it is important for us not to interrupt any daily activities. All work in critical areas was performed at specific shut down periods dictated by the vacation schedule of the facility, during holidays or after hours.