CSA/ANSI/IGSHPA C448 Series:25

Scope 1.1 Standard application This Standard applies to ground source heat pumps and systems using groundwater, surface water, wastewater, or the ground as a thermal source or sink for heating and/or cooling, with or without a supplementary heating source. 1.2 New and retrofit installations This Standard applies to new and retrofit installations. 1.3 Minimum requirements This Standard covers minimum requirements for equipment and material selection, site survey, system design, installation, testing and verification, documentation, and commissioning and decommissioning. 1.4 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 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 (nonmandatory) to define their application. 1.5 Dual measurements 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.