Dumac has issued both Electrical & Mechanical designs for the Wallace McCain Learning Commons, Dalhousie University in Halfiax, N.S.
This project consisted of a 12,700 square foot addition to the existing Dalhousie Life Sciences Building which opened in October 2015. The Wallace McCain Learning Commons serves as a multi-use space for student and faculty at Dalhousie to collaboratively learn and share knowledge. Dumac Energy Limited was retained to provide complete mechanical and electrical design services. This project is currently seeking LEED certification.
One of the key features of the mechanical design is a Dedicated Oudoor Air System (DOAS) air handler, which provides all outside air to the occupied areas. The DOAS is equipped with an enthalpy wheel for energy recovery and a variable speed heat pump heating/cooling coil. Supply and Exhaust Fans are equipped with Variable Frequency Drives (VFDs) and an Auto Balancer which maintains a constant air volume. Perimeter heating and cooling is provided from a state of the art Variable Refrigerant Flow (VRF) heat pump system equipped with heat recovery terminals capable of using heat rejected from one zone to heat another.
The design included an energy efficient lighting and control system incorporating direct/indirect LED luminaires for all areas. An LED based dimmable lighting system was designed for the open computer learning commons, smaller learning spaces and large group work rooms. Lighting controls include dimmer switches for each row of lighting allowing for maximum control and flexibility in the lighting system.