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CSA C657:15 (R2020)
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Preface
This is the fourth edition of CSA C657, Energy performance standard for commercial refrigeration equipment. It supersedes the previous editions, published in 2012 and in 2004 under the title Energy performance standard for refrigerated display cabinets (merchandisers), and published in 1995 under the title Energy Performance Standard for Commercial Refrigerated Display Cabinets and Merchandisers.
This edition has been revised to
a) merge this Standard with CAN/CSA-C827, Energy performance of food service refrigerators and freezers;
b) harmonize this Standard with ANSI/AHRI 1200/1201, Performance Rating of Commercial Refrigerated Display Merchandisers and Storage Cabinets;
c) make use of the test method specified in ANSI/ASHRAE 72, Method of Testing Commercial Refrigerators and Freezers, and harmonize its performance levels with those of the U.S. Department of Energy; and
d) include two different test procedures: Test procedure A and Test procedure B, to be used in conjunction with its respective maximum energy consumption limits.
This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
Scope
1.1
This Standard specifies methods for measuring the volume, energy consumption, and total display area (TDA) of electrically operated commercial refrigeration equipment.
1.2
This Standard applies to commercial refrigerator, refrigerator-freezer, and freezer cabinets and merchandisers that are intended for displaying, storing, or holding food products including canned and bottled beverages, ice intended for human consumption, and other perishable merchandise (e.g., cut flowers).
1.3
This Standard applies to
a) both permanently connected and cord-connected equipment;
b) cabinets equipped with or designed to work with electrically driven system;
c) refrigeration equipment designed for storage temperatures either above or below freezing temperatures, or both in separate compartments;
d) open and closed cabinets of self-contained and remote type;
e) commercial refrigerated storage cabinets; and
Note: Example of products include
a) reach-in cabinets;
b) roll-in or roll-through cabinets;
c) pass-through cabinets;
d) reach-in wine coolers;
e) fish or poultry files;
f) ice cream cabinets;
g) milk or beverage cabinets;
h) meat cases;
i) cheese cases;
j) worktop tables;
k) undercounter cabinets;
l) chef base or griddle stand; and
m) cabinets with drawers.
f) closed refrigerated cabinets, regardless of the material used for the door(s) of such cabinets, provided that the closed cabinets are designed for holding and storing.
1.4
This Standard does not apply to
a) walk-in refrigerators and freezers, water coolers, refrigerated vending machines, or ice-making machines;
b) soft serve, slush, and shake-dispensing freezers and extruders;
c) refrigerators, freezers, or combinations thereof designed for residential or consumer household use;
d) refrigerated cabinets designed to form the front wall of a refrigerated storage room where the air space of the cabinet is not separated from the air space of the storage room;
e) mitred transitional cabinet fillers used as corner sections between two refrigerated cabinets of identical cross-sections;
f) refrigeration products for use in recreational vehicles and other mobile equipment;
g) laboratory-grade refrigerators and freezers;
h) preparation table;
i) salad bars and buffet tables; and
j) refrigerated vending carts.
1.5
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
1.6
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
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