The interior space within a refrigeration unit cassette associated with a refrigerated merchandiser is divided by a division wall (68) into a first section in air flow communication with the interior product display space of the cabinet, and a second section isolated from said first section and in fluid flow communication with the environment exterior of the cabinet. An evaporator module (160) disposed within the first section, and a condenser module (170) and a compressor are disposed within the second section. The refrigeration cassette is selectively insertable in to and out of the equipment compaitulent to facilitate servicing of the refrigeration equipment therein, including removal and replacement of the evaporator module and the condenser module. |