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CSA Group , 07/01/2015
Publisher: CSA
File Format: PDF
$426.00$853.00
CSA C22.2 NO. 236-15 PDF
This is the harmonized CSA Group and UL standard for Heating and Cooling Equipment. It is the fifth edition of CSA C22.2 No. 236 and the fifth edition of UL 1995. This edition of CSA C22.2 No. 236 and UL 1995 supersedes the previous editions published in 1995, 1990, 2005 and 2011.1 These requirements apply to the following stationary equipment for use in nonhazardous locations rated greater than 600 volts up to 7200 V, and remote control assemblies for such equipment:
1.2 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:
1.3 A fan unit includes a motor-operated fan or blower and is intended to be connected to a duct system that supplies conditioned air for 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.
1.4 A fan coil unit includes a motor-operated fan or blower together with a cooling coil, a heating coil, or both. The fan or blower is intended to recirculate air, and can introduce air from outside of the heated or cooled space. The coil can be used for refrigerant cooling, for chilled water cooling, for hot water heating, for steam heating, or for combinations of these functions.
1.5 A fan coil unit is intended to be piped to a remote source of the heating and/or cooling mediums. A unit that includes an electric resistance heater is considered to be a fan coil unit if a water or refrigerant coil for comfort cooling and/or a water or steam coil for comfort heating is provided in the unit.
1.6 A room fan heater unit is intended for heating only, includes a motor-operated fan or blower, employs electric resistance heat as the only heat source, and is intended to serve only one room or space.
1.7 A fan coil unit or electric space heating equipment, as covered by these requirements, can be designed for free discharge of air to the room or can be provided with means for duct connection.
1.8 A central warm air furnace is a heating appliance that consists of an electric heating element or elements with an air-circulating fan or blower, is provided with appropriate integral operating and temperature-limiting controls, and is housed in an enclosure designed to be connected to ductwork for the distribution of the heated air remote from the unit.
1.9 The units referenced in Clause 1.1 and 1.2 can consist of one or more factory-made assemblies. If provided in more than one assembly, the separate assemblies are to be used together, and the requirements are based on the use of matched assemblies. These requirements apply to assemblies designed for free discharge of air into the conditioned space as well as those which may be provided with means for duct connection.
1.10 These requirements do not apply to add-on heat pump systems designed to utilize the indoor fan motor assembly of an installed furnace where:
1.11 These requirements apply to equipment designed to be used in nonhazardous locations in accordance with the rules of CSA C22.1, ANSI/NFPA No. 70, CSA B52, ANSI/ASHRAE 15, NFPA 90A, and NFPA 90B.
1.12 The values given in SI (metric) units are normative. Any other values given are for informational purposes only.
1.13 Units intended for connection to telecommunication equipment are to have the appropriate assembly containing such circuitry meet CAN/CSA C22.2 No. 225 and UL 1459.
1.14 The general requirements of CSA C22.2 No. 0 apply, except as follows:
1.15 These requirements do not cover panel or cable type radiant heating equipment, electric boilers, baseboard heaters, air heaters, duct heaters, and unit coolers for refrigeration purposes, nor any other electric heating equipment or appliances which are covered in or as a part of separate, individual standards.
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