EN 12309-1:2023

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW - Part 1: Terms and definitions EN 12309-1:2023

Publication date:   Oct 16, 2023

General information

60.60 Standard published   Jun 7, 2023


CEN/TC 299 Gas-fired sorption appliances, indirect fired sorption appliances, gas-fired endothermic engine heat pumps and domestic gas-fired washing and drying appliances.

European Norm

01.040.27   Energy and heat transfer engineering (Vocabularies) | 01.040.91   Construction materials and building (Vocabularies) | 27.080   Heat pumps | 91.140.30   Ventilation and air-conditioning systems



Language in which you want to receive the document.


1.1 Scope of EN 12309
Appliances covered by this document include one or a combination of the following:
- gas-fired sorption chiller;
- gas-fired sorption chiller/heater;
- gas-fired sorption heat pump;
- hybrids based on gas sorption appliances.
This document applies to appliances designed to be used for space heating or cooling or refrigeration with or without heat recovery.
This document applies to appliances having flue gas systems of type B and C (according to EN 1749) and to appliances designed for outdoor installations. EN 12309 does not apply to air conditioners, it only applies 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).
In the case of packaged units (consisting of several parts), this standard applies only to those designed and supplied as a complete package.
The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by EN 12309.
Installations used for heating and/or cooling of industrial processes are not within the scope of EN 12309.
All the symbols given in this text are used regardless of the language used.
1.2 Scope of this Part 1 of EN 12309
This part of this document specifies the terms and definitions for gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW.

Life cycle


EN 12309-1:2014


EN 12309-1:2023
60.60 Standard published
Jun 7, 2023