1. Scope 1.1 This standard prescribes the constructional and performance requirements of non-ducted unitary air conditioners up to and including capacity of 10 500 W, up to and including rated voltage of 240 V and rated frequency of 50 Hz. 1.2 This standard also prescribes the test conditions and the corresponding test procedures for determining various performance characteristics of unitary air conditioners which operate non-frosting when cooling and dehumidifying at standard rating conditions. 1.3 This standard specifies unitary air conditioners which may also serve as heaters by heat pump/electric heater application. 1.4 This standard is not applicable to the following: a) Water-source heat pumps or water cooled air conditioners, and b) Equipment using the absorption refrigeration cycle.