Preferred Mechanical worked as the prime contractor for the installation of the refrigerated ice floor and refrigeration equipment at the Walter Brown Arena at Boston University in Boston, MA. The refrigeration plant is a modular dual circuit direct expansion system utilizing R-507C refrgierant. The refrigerated floor is a fully welded steel tubing floor which was installed in conjunction with the refrigeration plant over the course of a summer. The refrigeration plant also boasts a full DDC package which allows for remote monitoring of critical plant temperatures and overall plant function. Remote SMS and email alarming allow the operators to rest at ease knowing that any unlikely failure will result in immediate alerts wherever they have cell reception.