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CAN/CSA-C743-09 (R2019)
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Product Details
Preface
This is the third edition of CSA C743, Performance Standard for rating packaged water chillers. It supersedes the previous editions published in 2002 and 1993.
Scope
1.1
This Standard applies to factory-designed and prefabricated vapour-compression chillers that include one or more hermetic or external drive compressors.
1.2
The compressor types covered under this Standard include
(a) centrifugal;
(b) screw;
(c) scroll;
(d) reciprocating; and
(e) other types.
1.3
The condenser types covered under this Standard include
(a) water-cooled;
(b) air-cooled/evaporatively cooled; and
(c) air- or water-cooled heat reclaim.
Packages can also be supplied without a condenser.
1.4
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).
1.5
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.
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