Case Studies

APR Control Case Studies

Saskatoon Public School HVAC Upgrades

Saskatoon Public Schools chose cost-effective APR Control over variable speed options for their school HVAC upgrade. Discover how this decision led to significant savings and improved performance. Learn more about the APR Control solution for schools! Read More

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Massachusetts Institute of Technology

After many compressor replacements, Massachusetts Institute of Technology leverages Rawal Devices’ APR Control to enhance HVAC equipment's reliability and lifespan. The APR Control's compressor protection allows the university to save on its maintenance budget, both in actual dollars and in their technicians' time. Read More

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Marco’s Pizza – Quick-Serve Restaurant

Rapidly expanding pizza chain deploys Rawal APR across new locations in Texas, meeting tight timelines. Quick Serve Restaurant (QSR) kitchens require exhaust hoods over grills and ovens that pull ventilation air from dining areas. That’s why makeup air needs to incorporate capacity control. Read More

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Nodaway School District

School district retrofits unit ventilators with APR Controls. Previously, lowering fan speed to mitigate noise complaints led to multiple problems including significant water damage as a result of frozen (seasonal) hot water heating coils. Read More

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ASHRAE Cleanroom Research Project

ASHRAE approved research project to test and demonstrate the use of new technologies in controlled environments. The Electronic APR Control was installed to provide precise discharge air control to maintain the tight temperature tolerances of the room. Read More

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Indoor Agriculture Cannabis Farm

Cannabis ‘Grow’ facilities account for one of the fastest sectors of growth ever in HVAC! Having a properly designed HVAC system to control the exacting conditions of grow rooms is critical to increasing plant yield per week and potentially up to 1/3 more crop per harvest season. Read More

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The Rawal APR Control is a variable capacity enhancement to DX HVAC systems.