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CSA C746

4th Edition, January 1, 2017

Complete Document

Energy performance rating for large and single packaged vertical air conditioners and heat pumps

Includes all amendments and changes through Errata , November 2017


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Product Details:

  • Revision: 4th Edition, January 1, 2017
  • Published Date: November 2017
  • Status: Active, Most Current
  • Document Language: English
  • Published By: CSA Group (CSA)
  • Page Count: 27
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This Standard applies only to the following electrically driven, mechanical, vapour-compression-type systems:

a) large air conditioners and heat pumps rated above 19 kW (65 000 Btu/h) cooling or heating capacity at standard rating conditions for both single- and three-phase electrical power supplies; and

b) all sizes of single packaged vertical air conditioners and heat pumps and air-conditioning condensing units.

Note: See Tables 1 to 3 for classifications of air conditioners, heat pumps, and air-conditioning condensing units.

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 

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.
CSA B51