CAN/CSA-C22.2 No.120-M91 (R2008)

1. Scope 1.1 This Standard applies to self-contained and remote refrigeration equipment, designed to be installed and used in accordance with the Canadian Electrical Code, Part I, for use in nonhazardous locations indoors or outdoors in commercial and business establishments. 1.2 This Standard also applies to self-contained, cord-connected equipment rated at not more than 250 V to be operated from branch circuits fused at not more than 60 A, and equipment intended for permanent connection rated at 600 V and less. 1.3 This Standard applies to (a) refrigerated equipment such as display cases, meat, dairy, or frozen food cases, reach-in cabinets, wall cabinets, and bottle type beverage coolers; (b) self-service or illuminated refrigerators, freezers and ice cream cabinets; (c) walk-in coolers; (d) equipment designed to be field-installed as part of a refrigeration system such as remote display cases and unit coolers; (e) equipment designed to produce some degree of freezing of food or beverage mixtures and to dispense them at will from the equipment at the time of sale; (f) water coolers, pressure or bottle type, freestanding or wall-mounted having added features such as a means for heating water, or a refrigerated space; (g) refrigerated beverage dispensers for use in commercial establishments, designed for freestanding use or for building into fixtures; (h) coolers for raw milk intended for farm use, permanently connected, of the bulk direct expansion ice bank type having either a self-contained or remote condensing unit; (i) ice making machines that manufacture and harvest ice in cube, flake or other readily usable form and that may or may not incorporate ice storage means; Note: This Standard does not apply to automatic ice-makers that are accessory components in household refrigerators and freezers. (j) door and frame assemblies used as part of a refrigerated room or cabinet; and (k) other equipment used in conjunction with refrigerated equipment such as carbonators, ice dispensers, and nonrefrigerated display cases. 1.4 This Standard includes requirements for the electrical features of equipment, having in mind the effects of sanitation procedures that may be required by authorities having jurisdiction in these matters, as well as the functional operation of the equipment, and requirements for the mechanical safety of refrigerating systems, water heating means, carbonating equipment, dispensing equipment, and door frame assemblies. 1.5 This Standard does not apply to compressor and condensing units covered by CSa Standard C22.2 No. 236. 1.6 The values given throughout this publication in SI (metric) units are the standard. The values given in parentheses are for information only.