The Freeaire® All Climate™ System – How It Works
The heart, and brains, of every Freeaire refrigeration system is our patented (U.S. Patent #5,239,834) electronic Cooler Controller™, a powerful computer that maximizes efficiency by operating each component of a conventional refrigeration system only as much as it needs to. Anywhere in the world, at anytime of the year, the Freeaire All Climate system makes sure that you are not wasting energy, and money, by running reach-in door heaters, evaporator fans, and condensing units unnecessarily.
Freeaire Polar Power™ package – The Opportunity for Free Winter Cooling
But in colder climates, when the weather turns cool, is when a Freeaire system truly shines. Winter represents a virtually untapped natural resource. It is a season with the power to refrigerate coolers and even freezers, all without consuming huge amounts of electricity to run costly conventional equipment. A Polar Power package doesn’t have to rely on a compressor system to produce cold air. It simply moves super-filtered cold air from outside to inside, using just a fraction of the energy.
Whenever the outside temperature is at least 4°F cooler than the temperature inside your walk-in and cooling is needed, the Cooler Controller tells the intake fans to introduce outside air into your cooler. Your Freeaire filter, with a MERV rating of 8, catches particles as small as 3 microns. That means the air is super fresh, and even cleaner than outside air.
An exhaust fan lets warmer air escape from the cooler. When the proper temperature has been reached, the Cooler Controller turns off both intake and exhaust fans. In northern climates, outside air can take over the job of refrigeration for months at a time. Your condensing unit and power-hungry evaporator fans may not run at all on many days, saving electricity costs, utility demand charges, and wear and tear on your equipment.
When your walk-in is being cooled by Polar Power package it commonly uses less than 10% of the energy needed by the compressor system to do the same job, for 150 days or more, each year.
Polar Power packages can be used in old or new walk-ins as small as 500 cubic feet, and in warehouses with hundreds of thousands of cubic feet, all using the same modular 10″ intake and exhaust units. As the size of the space and the refrigeration load increases, simply add more pairs of intake and exhaust fan units to handle the larger load.
More info: Freeaire founder Richard Travers explains the workings of the Freeaire System (video).
