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Natural refrigeration systems, controls and CO2 refrigerants start with M&M Carnot

You have high expectations for your refrigeration—our goal is to meet them with natural refrigeration that’s innovative, safe and sustainable. At M&M Carnot by Johnson Controls, we design, manufacture, build and service reliable refrigeration and controls—all with eco-friendly refrigerants like Ammonia, Cascade Ammonia-CO2, and Transcritical CO2. We give you complete control of your refrigeration, while protecting people and the planet.

Protect your investment. And the environment

You’re protecting thousands—maybe millions—of dollars worth of product. Shouldn’t the quality of your refrigeration be a priority? High demands on equipment require solutions that are easily maintainable, reliable and energy efficient—all while protecting the environment. Our complete portfolio of industrial refrigeration features state-of-the-art technology, complemented by engineering excellence and full dedication to your satisfaction. Whether it’s a packaged solutions or controls, see how the M&M Carnot team can guide you.

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