TS EN 12309-1
Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW – Part 1: Terms and definitions
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.
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About This Item
TS EN 12309-1 is the terminology and definitions part for gas-fired sorption appliances used for heating and/or cooling. It provides the common language for this appliance family, helping users understand how the main technologies, functions and configuration types are named and distinguished within the EN 12309 series.
Appliance family and intended applications
The scope covers gas-fired sorption appliances with a net heat input not exceeding 70 kW, including gas-fired sorption chillers, chiller/heaters, heat pumps and hybrids based on gas sorption appliances. These units may be intended for space heating, cooling or refrigeration, and may also include heat recovery as a primary or secondary function.
From a general technical perspective, sorption technology uses thermal energy to drive the cycle instead of relying on the mechanical compression typical of vapour-compression systems. Absorption and adsorption are two different sorption processes, and the distinction matters because the working pairs, internal arrangements and terminology differ. This part standardises the vocabulary so that these differences are described consistently.
What this part actually standardises
This part is about terms and definitions, not about performance limits or test procedures. In practice, that means it supports consistent engineering communication, product descriptions and technical documentation by clarifying how the relevant concepts should be understood. The scope also identifies boundary conditions such as type B and C flue gas systems and appliances designed for outdoor installation, as well as the fact that certain air-conditioning and process-heating applications are outside the document’s coverage.
- Brings together the vocabulary for gas-fired sorption chillers, chiller/heaters, heat pumps and related hybrids.
- Helps distinguish heating, cooling, refrigeration and heat-recovery functions in the same technology family.
- Uses common terminology for closed refrigerant circuits, automatic burner control and assisted combustion-air or flue-gas transport.
- Separates this appliance class from air conditioners and from industrial process heating applications that are outside the scope.
- Publication Date: 5.07.2023
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 01.040.27 Enerji ve Isı Transfer Mühendisliği (Terimler); 01.040.91 Yapı Malzemeleri ve Yapılar (Terimler); 27.080 Isı Pompaları; 91.140.30 Havalandırma ve Klima Sistemleri
- Pages: 36
- Source Standard: EN 12309-1:2023
- International Equivalents: EN 12309-1-EQV
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