Location: Dartmouth, Nova Scotia

Client: Public Works and Government Services Canada

Architect: Lydon Lynch Architects

Certifications: LEED Canada-NC Gold

Size: 160,000 sq. ft.

Project Budget: N/A

M&R Engineering was responsible for mechanical design including HVAC, Plumbing and Fire Protection as well as electrical design including Lighting, Power, Communications and Security.

Key Facts: 

• Efficient Building Envelope with triple glazed windows.
• Condensing Gas Boilers.
• Variable Speed Magnetic Bearing Chiller
• Variable Speed drives are installed on circulation pumps and fans to save electricity and provide greater control. 
• Energy Recovery is installed in Air Handling Units to recover heat from exhaust air. 
• Occupancy sensors are installed to reduce lighting power when the room is unoccupied. 
• Daylight sensors are used to control perimeter lighting; lights dim when there is sufficient daylight available. 
• Cut-off fixtures are installed in the parking lot to reduce light pollution. 
• An IAQ system is installed that monitors Carbon Dioxide (CO2), Particulate Matter (PM), Humidity, Total VOCs and Temperature.
• Low flow plumbing fixtures save water and energy used to heat domestic water: 4.8 L/flush and dual flush toilets, 0.5 L/flush urinals, 1.9 L/min lavatories, 5.7 L/min sinks, 7.6 L/min showers.
• Rainwater Cistern collects runoff from the roof and supplies toilets and urinals saving city water and reducing runoff into the storm system. 
• Energy modeling indicates energy cost savings of 43% compared to the energy code (MNECB).