BS EN 12309-2:2015

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Construction and design requirements
6 Operational requirements
7 Test methods
8 Marking and instructions
9 Figures
Annex A (informative) - Alternative method for the
        determination of the nominal heat input or the
        maximum and minimum heat input for appliances
        using a pneumatic gas/air ratio control system
Annex B (informative) - Calculation of conversions of NOx
Annex C (informative) - Example of calculation of weighting
        factors NOx
Annex D (informative) - Ratio of calorific value Gross to
        Net and Net to Gross for Gas Families 1, and 3
Annex ZA (informative) - Relationship between this
         European Standard and the Essential Requirements
         of EU Directive 2009/142/EC relating to appliances
         burning gaseous fuels (codified version)
Annex ZB (informative) - Relationship between this
         European Standard and the requirements of
         Commission Regulation (EC) No 813/2013
Annex ZC (informative) - Relationship between this
         European Standard and the requirements of
         Commission Regulation (EC) No 811/2013
Bibliography

Pertains to appliances only when used for space heating and cooling with or without heat recovery.

1.1 Scope of EN12309 series Appliances covered by this European Standard include one or a combination of the following: gas fired sorption chiller; gas fired sorption chiller/heater; gas fired sorption heat pump. This European Standard applies to appliances only when used for space heating and cooling with or without heat recovery. This European Standard applies to appliances having flue gas systems of typeB and C (according to CEN/TR1749 ) and to appliances designed for outdoor installations. EN12309 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 - see definitions in EN12309‑1:2014 ). In the case of packaged units (consisting of several parts), the 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 this European Standard. Installations used for heating and/or cooling of industrial processes are not within the scope of these standards. NOTE All the symbols given in this text are used regardless of the language used. 1.2 Scope of this Part2 to EN12309 This part of EN12309 deals with the safety of gas-driven sorption heat pumps as defined in EN12309‑1 . Only types B12 for outdoor installations, B13 for outdoor installations, B22 for outdoor installations, B23 for outdoor installations, C12 and C13, C32 and C33 are covered in this European Standard.