CSA Group CSA C700:26 National Standard of Canada Load-based and climate-specific testing and rating procedures for heat pumps and air conditioners REVISED

Preface

This is the first edition of CSA C700, Load-based and climate-specific testing and rating procedures for heat pumps and air conditioners. It supersedes CSA SPE-07, published in 2023, and CSA EXP07, published in 2019.

CSA Group acknowledges that the development of this Standard was made possible, in part, by the financial support of BC Hydro, British Columbia’s Ministry of Energy and Climate Solutions, Efficiency Manitoba, Efficiency Nova Scotia, Electricity Canada, FortisBC, Hydro-Québec, Independent Electricity System Operator (IESO), Northwest Energy Efficiency Alliance (NEEA), Nova Scotia’s Department of Energy, and Québec’s Ministère de l’Environnement de la Lutte contre les Changements Climatiques, de la Faune et des Parcs (MELLCCFP).

This Standard was prepared by the Subcommittee on Load-Based, Climate-Specific and Rating Procedures for Heat Pumps and Air Conditioners, under the jurisdiction of the Technical Committee on Heating, Ventilation, Air Conditioning, and Refrigeration and the Strategic Steering Committee on Performance, Energy Efficiency, and Renewables, and has been formally approved by the Technical Committee.

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.

Notes:

1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.

2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.

3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization — Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.

4) A request for interpretation can be submitted to clarify the meaning of a provision in this Standard. To submit a request for interpretation, please refer to www.csagroup.org/request-for-interpretation. Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Standards Activities page at standardsactivities.csagroup.org.

5) This Standard is subject to review within five years from the date of publication. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to [email protected] include “Proposal for change” in the subject line:

a) Standard designation (number);

b) relevant clause, table, and/or figure number;

c) wording of the proposed change; and

d) rationale for the change.

1 Scope

1.1 General

1.1.1 Inclusions

This Standard applies to unitary air conditioners and heat pumps that are

a) factory-made;

b) air-source and air-sink;

c) single-split systems with matching assemblies or single package for use in ducted and/or non-ducted distribution systems;

d) intended for space-heating and/or air-conditioning applications in buildings;

e) electrically driven, mechanical, vapour-compression-type systems;

f) rated below 19.0 kW (65 000 Btu/h) heating or cooling at standard rating conditions, in accordance with Clause 5.2; and

g) tested with a prescribed thermostat or control.

1.1.2 Exclusions

This Standard does not apply to

a) water-to-air and/or water units; and

b) heat recovery.

1.2 Unitary equipment

Unitary equipment within the scope of this Standard is outlined in Table 1.

1.3 Terminology

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 this 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 this 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.

1.4 Units of measurement

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.