Refrigeration unit for cold space merchandiser

A refrigeration cabinet having insulated outer walls and an access door for accessing the cabinet interior;

• a space defined between an insulated back wall and an inner panel of the cabinet, the space being vertically divided by a pair of partitions defining a central vertically-extending cold air passage for cold air flow having cold air discharge openings in fluid communication with the cabinet interior, and two outer vertically-extending return air passages for return air flow disposed on opposite sides of said cold air passage and having return air inlet openings in fluid communication with the cabinet interior, said return air inlet openings being downwardly spaced from at least some of said cold air discharge openings, said return air passages each having an upper termination spaced from an insulated upper wall, and said terminations being spaced from said insulated upper wall to define a cold air passage which broadens at the top of the cabinet;
• and air circulation means adapted to draw air from the cabinet interior through said return air inlet openings into said return air passages, to cool said air and to expel cool air into the cabinet interior through said cold air discharge openings from said cold air passage, a circulatory air flow being created in the cabinet interior with cool air discharged forwardly and downwardly from said inner panel and return air drawn into said return air passages for refrigeration and continued circulation.

A refrigeration cabinet having insulated outer walls, and an access door for accessing the cabinet interior between an insulated floor of the cabinet interior and a top outer wall of the cabinet,

• the insulated floor being upwardly spaced from a bottom outer wall of the cabinet and accommodating therebetween an evaporator assembly mounted to one side of an insulated bulkhead,
• the bulkhead and the cabinet being adapted to sealingly engage with each other so as to define an insulated compartment for containing the evaporator assembly,
• a condenser assembly being mounted to the opposite side of the bulkhead, and
• the evaporator assembly, the bulkhead, and the condenser assembly defining a modular unit which may conveniently be removed from the cabinet for servicing.