CoolTrol® Cooler Control Systems The energy efficient, cost-saving solution for your walk-in coolers and freezers. With skyrocketing fuel and energy costs, many owners and managers are turning to National Resource Management's smart and innovative system to help them reduce operational costs and improve their bottom line. Evaporator fans run 25% to 80% less, saving electricity and reducing compressor run time. Door and frame heaters are controlled based on store dew point, reducing run time by up to 95% in coolers and 60% in freezers. In areas with winter temperatures, cool outside air is used so that the compressor and fans run less often.

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