It thus takes a significant amount of energy to cool product within the display case. Because of the size of the air curtain, it is more susceptible to the intrusion of ambient warm air from outside the display case. The air curtain is consequently very large. This air is drawn into the warm air return by a fan that then blows the warmed air over a refrigeration coil and recycles the air back to the air outlet at the top of the display case through a duct extending from the refrigeration coil to the air outlet.ĭue to the relative locations of the air inlet and air outlet, the air curtain generally extends over the entire viewing area. An outlet at the top of the display case blows air vertically down to a warm air return near the bottom of the display case. To keep the product refrigerated within the display case, these refrigerated merchandisers have an air curtain that extends from near the top to near the bottom of the display case over the viewing area.
![single and multideck refrigerated display cases single and multideck refrigerated display cases](https://www.hillphoenix.com/wp-content/uploads/2019/05/SMD-RG-display-case-product-page-hero-graphic.jpg)
Refrigerated display cases found in supermarkets and convenience stores may have an open viewing area that permits consumers to reach into the display case without opening a door to retrieve refrigerated product from the display cases shelves. This invention relates to a refrigerated display case.