Doorcooler

A doorcooler is a type of refrigeration unit designed to be integrated into a display door of a refrigerated case or walk-in cooler. Its primary function is to maintain a consistent and optimal temperature within the display area, thereby preserving the quality and shelf life of the products stored inside. Doorcoolers are particularly common in retail environments, such as supermarkets and convenience stores, where they are used to showcase chilled or frozen goods like beverages, dairy products, and pre-packaged meals.

The design of a doorcooler typically involves a compact refrigeration system, often a small compressor and evaporator coil, fitted directly behind or within the door panel. This localized cooling system works in conjunction with the main refrigeration system of the display case, if present, or can function independently. This dual-cooling approach helps to counteract the temperature fluctuations that can occur when the door is opened and closed, a common issue with conventional refrigerated displays. By minimizing heat ingress and providing targeted cooling, doorcoolers ensure that products remain at their intended temperature, even with frequent customer access. This improved temperature stability can lead to reduced product spoilage and a more appealing presentation for consumers.