Draft Details

Review start date:Apr 4, 2019
Review end date:Dec 15, 2020
Contact email:mary.morgan(at)csagroup.org
Draft Scope/Description:

1 Scope

1.1 General


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

Note: This includes space-constrained single-package or split-system and small-ducthigh-velocity central air conditioners and heat pumps matching assemblies of the type classified in Clause 1.2 and intended for air-conditioning and space-heating applications in buildings.


These procedures do not apply to the following:

a) water to air and/or water units; and
b) heat recovery.

1.2 Unitary equipment

Unitary equipment within the scope of these procedures is outlined in Table 1.

1.3 Terminology

In these procedures, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with these procedures; “should” is used to express a recommendation or that which is advised but not required; “may” is used to express an option or that which is permissible within the limits of these procedures; and “can” is used to express possibility or capability.

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 IP (inch-pound) units are normative. Metric values given in parentheses are for information only.

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