Case Studies

Dollard-des-Ormeaux Sports Center

The Dollard-des-Ormeaux Sports Center partnered with MMC to replace their R22 refrigeration system with an environmentally friendly alternative that would reduce operational costs.

Recreational - Swimming


The multi-rink sports complex was challenged with replacing their 35-year-old R22 system with a natural-refrigerant solution that would increase energy savings, decrease maintenance costs, and reduce space usage – all while significantly cutting greenhouse gas emissions.

Recreational - Ice Skating


MMC replaced the old R22 refrigeration system with a Transcritical CO2 system with brine for existing installations and direct CO2 for heating and dehumidifying the ice rinks. The solution included the implementation of a heat recovery network for the Sport Center’s swimming pools, library, gym, and domestic hot water heating.


After just one year, MMC’s Transcritical CO2 solution saved the Municipality $257,000 by delivering an energy savings of 33.4%, a reduction in heating expenses of 81% and reduction in power peaks of 700 kilowatts. As for ROI, the new system is projected to pay for itself in 3.9 years.

81% reduction in heating costs.

Aquilon DS™ System

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