PREN 12067-2 : DRAFT 2015
Current
The latest, up-to-date edition.
SAFETY AND CONTROL DEVICES FOR BURNERS AND APPLIANCES BURNING GASEOUS OR LIQUID FUELS - CONTROL FUNCTIONS IN ELECTRONIC SYSTEMS - PART 2: FUEL/AIR RATIO CONTROL/SUPERVISION OF THE ELECTRONIC TYPE
12-01-2015
European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Test conditions and uncertainty of measurements
6 Design and construction
7 Performance
8 Electrical requirements
9 Electromagnetic compatibility (EMC)
10 Marking, installation and operating instructions
Annex A (informative) - Abbreviations and Symbols
Annex B (informative) - Leak-tightness test for
gas controls - Volumetric method
Annex C (informative) - Leak-tightness for
gas controls - Pressure loss method
Annex D (normative) - Calculation of pressure
loss into leakage rate
Annex E (normative) - Electrical/electronic
component fault modes
Annex F (normative) - Additional requirements
for safety accessories and pressure
accessories as defined in EU 97/23/EC
Annex G (normative) - Materials for pressurized parts
Annex H (informative) - Additional materials for
pressurized parts
Annex I (normative) - Requirements for controls used
in DC supplied burners and appliances burning
gaseous or liquid fuels
Annex J (normative) - Method for the determination
of a Safety integrity level (SIL)
Annex K (normative) - Method for the determination
of a Performance Level (PL)
Annex L (informative) - Relationship between Safety
Integrity Level (SIL) and Performance Level (PL)
Annex M (normative) - Reset functions
Annex N (informative) - Guidance document on
Environmental Aspects
Annex O (normative) - Seals of elastomer, cork
and synthetic fibre mixtures
Annex AA (normative) - Declaration for sensors,
actuators and repeatability
Annex BB (normative) - Special requirements for
single position feed-back potentiometers
in electromechanical actuators
Annex CC (informative) - Overall fuel to air
ratio accuracy
Annex DD (informative) - Guideline for the
integration of an ERC, ERS or ERT into the
appliance
Annex EE (informative) - Guideline for the
definition of limits for safe operation of the
appliance
Annex ZA (informative) Relationship between
this European Standard and the Essential
Requirements of EU Directive 2009/142/EC
relating to appliances burning gaseous fuels
Annex ZB (informative) - Relationship between
this European Standard and the Essential
Requirements of EU Directive 97/23/EC
concerning pressure equipment
Bibliography
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