CAN/CSA-C743-02 (R2007)

1 Scope 1.1 This Standard applies to factory-designed and prefabricated vapour-compression chillers, including one or more hermetic or external drive compressors. The compressor types include centrifugal, screw, scroll, reciprocating, or other types, and the condenser types include water-cooled and air-cooled/evaporatively cooled types, or the package can be supplied without a condenser. Also, air- or water-cooled heat reclaim condensers can be supplied. 1.2 This Standard applies to a) factory-designed and prefabricated water-cooled absorption chiller/heater units; b) single-effect indirect-fired by steam or hot water; and c) double-effect, both indirect-fired by steam or hot water and direct-fired by oil, natural gas, or LP gas; water is the refrigerant and lithium bromide is the absorbent. This Standard does not apply to absorption chiller/heater units with air- cooled condensers, nor does it apply to applications employing heat pumping or exhaust gas firing.