CSA C22.2 NO. 236-11

Heating and cooling equipment (Bi-national standard with UL 1995)

These requirements apply to the following stationary equipment for use in nonhazardous locations rated 7200 V or less, single- or 3-phase, and remote control assemblies for such equipment:a) Heat pumps, for heating and cooling with or without factory, or field-installed electric resistance heaters, or hot water or steam heating coils; b) Air conditioners for cooling with or without factory, or field-installed electric resistance heaters, or hot water or steam heating coils; c) Cooling portion and associated components of combination heating and cooling equipment employing gas-, oil-, or gas-oil-fired heating means. However, the requirements for the construction and performance of the gas-, oil-, or gas-oil-fired heating means, and their associated components, are to conform to the particular standards covering such heating equipment and components; d) Liquid chillers and compressor-evaporator or liquid chiller assemblies intended for use with remote condensers; e) Condensing units intended for connection to a remote nonspecified evaporator and compressor units intended for connection to a remote nonspecified evaporator and condenser; f) Add-on heat pumps for comfort heating or heating and cooling; g) Heat pump water heaters and refrigerant desuperheaters, and packaged heat pump water heaters consisting of a heat pump water heater and an associated storage tank; h) Fan units and fan coil units for comfort heating and/or comfort cooling; i) Room fan heater units, central heating furnaces, and similar fixed electric space heating for comfort heating environmental heating and/or cooling. Such a unit may have air-controlled dampers, but does not include a factory-installed heat exchanger or any other integral heating or cooling means.