Performance Standard for rating packaged water chillers
|Publication Date:||1 September 2009|
This Standard applies to factory-designed and prefabricated vapour-compression chillers that include one or more hermetic or external drive compressors.
The compressor types covered under this Standard include
(d) reciprocating; and
(e) other types.
The condenser types covered under this Standard include
(c) air- or water-cooled heat reclaim.
Packages can also be supplied without a condenser.
This Standard applies to
(a) factory-designed and prefabricated water-cooled absorption chiller/heater units;
(b) units that are
(i) single-effect indirect-fired by steam or hot water; and
(ii) double-effect, both indirect-fired by steam or hot water and direct-fired by oil, natural gas, or liquefied petroleum (LP) gas (water is the refrigerant and lithium bromide is the absorbent); and
(c) positive displacement chillers using fluids with secondary coolants (glycol or brine) for freeze protection and leaving brine temperatures greater than 0 °C (32°F).
This Standard does not apply to
(a) absorption chiller/heater units with air-cooled condensers; or
(b) applications employing heat pumping or exhaust gas firing.
In CSA Standards, "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; "may" is used to express an option or that which is permissible within the limits of the standard; 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.
The values given in SI (metric) units are the standard. The values given in parentheses are for information only.