I.S. EN 303-7:2006
Current
The latest, up-to-date edition.
HEATING BOILERS - PART 7: GAS-FIRED CENTRAL HEATING BOILERS EQUIPPED WITH A FORCED DRAUGHT BURNER OF NOMINAL HEAT OUTPUT NOT EXCEEDING 1 000 KW
Hardcopy , PDF
English
01-01-2006
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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Constructional and operational requirements
4.1 General principles
4.2 Operational requirements
5 Test methods
5.1 General principles
5.2 External tightness of the gas line
5.3 Heat input rates
5.4 Gas pressure governor
5.5 Safety of operation
5.6 Control and safety equipments
5.7 Combustion
5.8 Useful efficiencies
5.9 Condensation
6 Marking and instructions
6.1 Marking
6.2 Instructions
6.3 Presentation
Annex A (informative) Diameters of combustion products evacuation
ducts marketed in the various countries
Annex B (informative) Practical method of calibrating the test
rig to enable determination of heat loss D[p]
Annex C (informative) Determination of the heat losses from the
test rig of the indirect method and the contributions of
the circulating pump of the test rig
Annex D (informative) Determination of the operating time at
full rate prior to modulation
Annex E (normative) Determination of the combustion
characteristics - Carbon monoxide and nitrogen oxides
Annex F (normative) Case of a forced draught burner complying
with EN 676
Annex G (informative) Main symbols and abbreviations used
Annex H (informative) A-deviations
Annex ZA (informative) Clauses of this European Standard
addressing essential requirements or other provisions
of EU Directives
Bibliography
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