A refrigerated display case includes a housing surrounding multiple shelves. An air return passage is defined below the shelves. A fan is disposed at a downstream end of the air return passage. An air distribution gap is connected to an outlet of the fan and disposed behind the shelves and a top passage is disposed above the shelves. At least one microchannel heat exchanger connects the air distribution gap to the shelves.

A refrigerator has an open front, an air curtain system having at least one upper air egress having an outer edge and at least one lower air-recovery ingress. The air curtain system is adapted to produce a substantially vertical air curtain over at least part of the open front of the refrigerator. The refrigerator has a plurality of shelves between the egress and the ingress a plurality of shelves between the egress and the ingress including a first shelf that has an aerofoil positioned in front of it, the first shelf being located in the upper half of the open front of refrigerator. The refrigerator also includes a second shelf that does not have an aerofoil positioned in front of it, the second shelf being located below the first shelf.

A system 1001 comprises a display unit 1002 and shelves 4. The display unit has an open front chamber 50 for storing food products, lower and upper air ducts 32, 34, a fan 36, and an air refrigerator 44. At least one wall is transparent. The display unit further comprises a conduit wall 88, parallel to the transparent wall for creating an air conduit 90. The air conduit comprises a first conduit inlet 92, a second conduit inlet 94, and a conduit outlet 96. The first conduit inlet is in fluid connection with one of the lower and upper air ducts for diverting a portion of the air moving through the relevant air duct into the air conduit. The second conduit inlet is in fluid connection with ambient air outside of the display unit.

A system comprises a display unit and shelves. The display unit has an open front chamber for storing food products, a lower air duct with a lower front inlet, an upper air duct with an upper front outlet, a fan and an air refrigerator. The upper front outlet is directed at the lower front inlet for creating an air curtain in front of the open front. At least one of the shelves is a hollow shelf with an inner space, a shelf air outlet at a front side, a shelf air inlet at a back side, a fan, and a shelf heater. The fan is in fluid connection with the shelf air inlet and the shelf air outlet for moving air from the shelf air inlet through the hollow shelf to the shelf air outlet.

A refrigerated display case having a front and including a duct to direct an air stream flow through a bottom, a back, and a top of the refrigerated display case, a guide vane communicating with the top of the duct to redirect the air stream flow along the front of the refrigerated display case, and a receiver coupled to the bottom of the duct to accept the air stream flow redirected by the guide vane. The guide vane includes a top wall, a bottom wall, a pair of side walls, a first end region, a second end region, a plurality of internal wall, and a plurality of flow paths extending between the first end region and the second end region and defined between the pair of side walls, and at least two of the top wall, the bottom wall, a first internal wall of the plurality of internal walls, and a second internal wall of the plurality of internal walls.

An air curtain guide mounting kit for attaching an air curtain guide to an open-display refrigerator, the kit comprising: an arm adapted to be mounted to the refrigerator; and a bracket comprising an engagement section adapted to be connected to an air curtain guide, and a mounting section connected to the engagement section and adapted to form a hinged connection with the arm.

The present disclosure describes a method for configuring an open display refrigerator, the method comprises: measuring an initial temperature difference between the warmest temperature recorded by an array of temperature sensors and the coldest temperature recorded by the array of temperature sensors; coupling an air guide to at least one shelf; adjusting the distance between the air guide and the edge of the shelf for the at least one shelf; measuring a final temperature difference associated with the distance, the final temperature difference being the temperature difference between the warmest temperature recorded by the array of temperature sensors and the coldest temperature recorded by the array of temperatures sensors after coupling an air guide to the at least one shelf; selecting a distance from the plurality of distances that gives rise to at least a threshold temperature difference, or selecting the distance from the plurality of distances wherein the difference between the initial temperature difference and the associated final temperature difference is greatest.

An open display refrigerator is provided, comprising: a refrigerated interior space, air in the refrigerated interior space being separated from air in a space exterior to the open display refrigerator by an air curtain established by a fan which blows air through an air outlet towards a corresponding air inlet which recovers air from the air curtain for recirculation to the air outlet; and a weir screen positioned proximal to the exterior space relative to the air inlet, wherein the weir screen is moveable between a retracted position in which the weir screen does not limit access to a base of the refrigerator and a deployed position in which the weir screen acts as a barrier to prevent air from the air curtain spilling into the exterior space.

A heat exchanger for a refrigerated merchandiser includes a fan housing having an asymmetrical configuration. The fan housing can include a first section with a first open outlet and a second section with a second open outlet. A first fan is positioned in the first section and configured to create a first airflow through the first open outlet. A second fan is positioned in the second section and configured to create a second airflow through the second open outlet. An evaporator is in fluid communication with the first open outlet and second open outlet. The first section is asymmetrical about a first section central axis and the second section is asymmetrical about a second section central axis.

A refrigerated merchandiser including a case including case structure defining a product display area, a refrigeration system supported by the case to condition the product display area, a first refrigerated section including a first product display arrangement supported by the case structure and positioned in a first portion of the product display area, and a second refrigerated section including a second product display arrangement that is supported by the case structure and positioned in a second portion of the product display area. The refrigeration system communicates with the first and the second portions of the product display area to respectively maintain the same within a predetermined temperature range. One or both the first product display arrangement or the second product display arrangement is replaceable, without the use of tools, by a third product display arrangement that is different from the first product display arrangement and the second display arrangement.