School District 33
Rosedale Traditional Community School

Project Description

This consolidation of two schools into a new elementary and middle school on the existing site accommodates 570 students.

Mechanical Systems Description:

MCW designed the plumbing (including hydronic heating and domestic hot water systems) and fire protection systems, and designed the ventilation and make-up air systems in accordance with ASHRAE 62.1-2004.

The complete HVAC systems include integration of geothermal energy (the detailed design of the geothermal field was provided by the geothermal sub-contractor). Occupancy zone-based air handling units maximize system shutdown times and the variable volume air systems are based in rooms with high occupant diversity, resulting in energy savings. Constant volume air systems are based in rooms with low occupancy diversity, thus improving air quality.

Occupancy sensors in each zone shut off airflow when unoccupied, saving up to 60% in fan energy. The geothermal vertical closed loop heating and cooling system reduces heating energy by 55%, while the waste heat recovery systems will save up to $10,000 annually. Gas heating is only required for 50% of the domestic hot water systems, creating negligible greenhouse gas emissions.

Electrical Systems Description:

MCW’s electrical designs include site and landscape lighting, power distribution, fire alarm and emergency lighting, emergency power, and low voltage communications systems. All classrooms incorporate occupancy sensors to turn lights off during unoccupied periods, and have low-voltage dimming controls, which provide constant light levels in conjunction with daylight harvesting light level sensors.