This PDF includes Amd #1-#3.1. Scope1.1This Standard applies to cord-connected room air conditioners rated not more than 250 volts, single phase, with a rated capacity not over 36,000 Btu/hr, designed to be used in accordance with the Rules of Canadian Electrical Code, Part I.1.2This Standard applies to self-contained air-cooled window, o r console or built-in-wall type room air conditioners, which have hermetic-type condensing units and which are intended to be installed in the conditioned room, usually in or in front of a window , or in a wall or transom.1.3This Standard does not cover water-cooled assemblies, self- contained store, or office-type air conditioners, air-cooled residential air conditioners, permanently-connected air conditioners, units intended for installation in conjunction with central heating systems, or air conditioning equipment intended to be mounted wholly outdoors.