NEN EN 12309-1 : 2015

      Foreword
1 Scope
2 Normative References
3 Definitions
      3.1 Appliance and its constituent parts
      3.2 Adjusting, control and safety devices
      3.3 Operation of the appliance
      3.4 Gases
      3.5 Conditions of operation and measurement
      3.6 Marking of the appliance and packaging
4 Classification
      4.1 Classification of gases
      4.2 Classification of appliances
5 Construction and Design Requirements
      5.1 General
      5.2 Requirements for adjusting, control and safety
             devices
      5.3 Ignition devices
      5.4 Transportation of combustion air and/or flue
             gases
      5.5 Flame supervision system
      5.6 Ignition burner or start-gas flame establishment
      5.7 Main flame establishment
      5.8 Main burner
      5.9 Facility for remote control
      5.10 Thermostats and control of air temperature in
             the various countries
      5.11 Gas pressure test points
      5.12 Pressure relief devices
      5.13 Additional requirements for appliances designed
             for outdoor installation
6 Operational Requirements
      6.1 Soundness
      6.2 Heat inputs
      6.3 Limiting temperatures
      6.4 Ignition, cross-lighting, flame stability
      6.5 Combustion
      6.6 Spillage monitoring system (Type B12BS and B13BS
             appliances only)
      6.7 Safety of operation in various temperature
             environments
      6.8 Overheat cut-off device
      6.9 Maximum working pressure of pressurized chambers
      6.10 Pressure relief devices
      6.11 Effectiveness of the pre-purge for all appliances
             except Type B14
      6.12 Weather resistance
7 Test Methods
      7.1 General
      7.2 Construction and design
      7.3 Safety of operation
8 Marking
      8.1 Marking of the appliance
      8.2 Marking of the packaging
      8.3 Utilization of symbols on the appliance and
             packaging
      8.4 Instructions
Annex A (informative) National Situations
      A.1 - Categories listed in the body of the standard
            marketed in the different countries
      A.2 - Appliance supply pressure corresponding to the
            categories given in A.1
      A.3 - Special categories marketed nationally or locally
      A.4 - Test gases corresponding to the special categories
            given in A.3
      A.5 - Gas connections in the various countries
            (see 5.1.5)
      A.6 - Flue connections in the various countries
      A.7 - Equivalence rules
Annex B (informative) Classification according to mode of
                      evacuation of the combustion products
Annex C (informative) Means of identification of the types of
                      gas in force in the various countries
Annex D (normative) Special national condition
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements or
                       other provisions of EU Directives
Table 1 - Classification of gases
Table 2 - Examples of appliances designed to provide cooling
Table 3 - Examples of appliances designed to provide heating
Table 4 - Minimum valving requirements for Type B14 appliances
Table 5 - Minimum valving requirements for Types B12, B22, C12
          and C32 appliances, and outdoor appliances
          incorporating a fan in the combustion circuit
          downstream of the combustion chamber/heat exchanger
Table 6 - Minimum valving requirements for Types B13, B23, C13
          and C33 appliances, and outdoor appliances
          incorporating a fan in the combustion circuit
          upstream of the combustion chamber/heat exchanger
Table 7 - Shutdown Times
Table 8 - Characteristics of the test gases (Gas dry 15oC and
          1013,25 mbar)
Table 9 - Calorific values of the test gases of the third
          family
Table 10 - Test gases corresponding to the appliance
           categories
Table 11 - Test pressures where no pressure couple exists
           (mbar)
Table 12 - Test pressures where a pressure couple exists
           (mbar)
Table 13 - Normal heat transfer media temperatures: Chillers
Table 14 - Normal heat transfer media temperatures: Heat
           recovery heat exchanger
Table 15 - Normal heat transfer media temperatures: Air or
           water cooled air conditioners
Table 16 - Normal heat transfer media temperatures: All
           appliances in the heating mode
Table 17 - VCO2,N values (see 7.3.5)
Table 18 - Temperature operating range
Table 19 - Values for As, VCO2,P, VH2OP and K
Table 20 - Gas type symbols
Figure 1 - Leakage indicator
Figure 2 - Test of an appliance under abnormal draught
           conditions
Figure 3 - Test apparatus for Type C1 appliances
Figure 4a - Test apparatus for Type C3 appliances - flat roof
Figure 4b - Test apparatus for Type C3 appliances - angled
            roof
Figure 5a - Sampling probe for Type B appliances: sampling
            probe for test flues of diameter equal or greater
            than DN 100
Figure 5b - Sampling probe for Type B appliances: sampling
            probe for test flues of diameter less than DN 100
Figure 6 - Sampling probe for Type C1 and C3 appliances
Figure 7 - Sampling position for Type C1 and C3 appliances
Figure 8 - Spillage monitoring system - test apparatus
Figure 9 - Arrangement of spray heads and associated piping
           for the weather resistance test
Figure 10 - Details of spray head assembly and construction