This standard is concerned with single package and split system room air-conditioners, employing air-cooled condensers, Designed for operation on single phase a.c rated voltages and rated frequencies as specified in Appendix “A”. It covers units used for cooling only or for cooling/heating, whether the heating is by electric heating elements or by Heat-pump system. It deals with air-conditioners of cooling capacity up to 7 Kw (24000 Btu/h).