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UNI EN 777-2 : 2009

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

MULTI-BURNER GAS-FIRED OVERHEAD RADIANT TUBE HEATER SYSTEMS FOR NON-DOMESTIC USE - PART 2: SYSTEM E - SAFETY
Superseded date

19-08-2022

Published date

01-01-2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
  3.1 System and its constituent parts
  3.2 Adjusting, control and safety devices
  3.3 System operation
  3.4 Gases
  3.5 Conditions of operation and measurement
  3.6 Country of destination
4 System classification
  4.1 Classification according to the nature of the gases
      used (categories)
  4.2 Classification according to the gases capable of being
      used
  4.3 Classification according to the mode of evacuation of
      the combustion products
5 Constructional requirements
  5.1 General
  5.2 Requirements for adjusting, control and safety devices
  5.3 Ignition devices
  5.4 Main burners
  5.5 Pressure test points
  5.6 Injectors
6 Operational requirements
  6.1 Soundness
  6.2 Heat inputs
  6.3 Limiting temperatures
  6.4 Ignition, cross-lighting and flame stability
  6.5 Pressure regulator
  6.6 Combustion
  6.7 Prolonged performance
  6.8 Measurement of oxides of Nitrogen, NO[x]
7 Test methods
  7.1 General
  7.2 Construction and design
  7.3 Safety of operation
  7.4 Other pollutants
8 Marking and instructions
  8.1 Marking of the system and the packaging
  8.2 Instructions
  8.3 Presentation
9 Evaluation of conformity of POCEDs and their associated terminals
  9.1 General
  9.2 Type testing
  9.3 Factory production control (FPC)
Annex A (informative) National situations
Annex B (informative) System E
Annex C (informative) Equivalence rules
Annex D (informative) Calculation of flue gas mass flow rate
Annex E (informative) Identification of gas types in use in
        various countries
Annex F (normative) Special national conditions
Annex G (informative) Calculation example of the weighting
        factors for a system with several rates
Annex H (informative) NO[x] conversion calculation
Annex I (informative) National situations of countries whose
        national bodies are CEN associate members
Annex J (informative) An example of sampling plans
Annex K (informative) Flue determination
Annex ZA (informative) Clauses of this European Standard
         addressing essential requirements or other
         provisions of EU Directives
Annex ZB (informative) Clauses of this European Standard
         addressing the provisions of the EU Construction
         Products Directive
Bibliography

Describes the requirements and test methods for the construction, safety, classification and marking of non-domestic gas-fired overhead radiant tube heaters incorporated into a multi-burner system (called system E and referred to in the body of the text as the 'system') with each burner unit under the control of an automatic burner control system.

DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
I.S. EN 777-2:2009 Identical
NS EN 777-2 : 2009 Identical
NBN EN 777-2 : 2009 Identical
BS EN 777-2:2009 Identical
EN 777-2:2009 Identical
NF EN 777-2 : 2009 Identical
NEN EN 777-2 : 2009 Identical
SN EN 777-2 : 2009 Identical
UNE-EN 777-2:2009 Identical
DIN EN 777-2:2009-09 Identical

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ISO 274:1975 Copper tubes of circular section — Dimensions
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EN 60584-2:1993 Thermocouples - Part 2: Tolerances
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ISO 7005-3:1988 Metallic flanges Part 3: Copper alloy and composite flanges
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CEN/TR 1749:2014 European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types)
CR 1404:1994 Determination of emissions from appliances burning gaseous fuels during type-testing
EN 60335-2-102:2016 Household and similar electrical appliances - Safety - Part 2-102: Particular requirements for gas, oil and solid-fuel burning appliances having electrical connections
EN 60730-2-1 : 97 AMD 11 2005 AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE - PART 2-1: PARTICULAR REQUIREMENTS FOR ELECTRICAL CONTROLS FOR ELECTRICAL HOUSEHOLD APPLIANCES
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EN ISO 6976:2016 Natural gas - Calculation of calorific values, density, relative density and Wobbe indices from composition (ISO 6976:2016)
EN 10226-1:2004 Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation
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