Appliances covered by these standards include one or a combination of the following: gas fired sorption chiller; gas fired sorption chiller/heater; gas fired sorption heat pump; These standards apply to appliances only when used for space heating and cooling with or without heat recovery. Appliances can be monovalent, bivalent or hybrid types. These standards apply to appliances having flue gas systems of type B and C (according to the CEN/TR 1749) and to appliances designed for outdoor installations. These European Standards apply to appliances that can be single ducted or double ducted. These standards only apply to appliances having: integral burners under the control of fully automatic burner control systems; closed system refrigerant circuits in which the refrigerant does not come into direct contact with the water or air to be cooled or heated; mechanical means to assist transportation of the combustion air and/or the flue gas. The above appliances can have one or more primary or secondary functions (i.e. heat recovery - see definitions prEN 12309-1:2012) and this standard applies to all such functions providing that the function concerned is dependent on circulation of fluid (refrigerant and/or solution) within the absorption, adsorption or refrigerant circuit(s). NOTE 1 Any appliance function that is not dependent on circulation of the fluid within the absorption, adsorption, or refrigerant circuit(s) is assessed separately. These standards are applicable to appliances that are intended to be type tested. Requirements for appliances that are not type tested would need to be subject to further consideration. In the case of packaged units (consisting of several parts), the standard applies only to those designed and supplied as a complete package. These standards do not apply to air conditioners. The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by this standard. Installations used for heating and/or cooling of industrial processes are not within the scope of these standards. NOTE 2 All the symbols given in this text are used regardless of the language used.