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Category: CO₂

Ammonia/CO₂ Cascade: A Retrofit for the Future

We successfully designed and implemented a cascade ammonia and CO2 system that harnesses the benefits of both natural refrigerants.

Excel Refrigeration and Air Conditioning is your Industry Specialist. We design, build, install, service and maintain industrial and commercial refrigeration, heating, ventilation and cooling systems throughout Aotearoa New Zealand. 

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