UNI EN 525 : 2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
NON-DOMESTIC DIRECT GAS-FIRED FORCED CONVECTION AIR HEATERS FOR SPACE HEATING NOT EXCEEDING A NET HEAT INPUT OF 300 KW
13-08-2022
01-01-2009
Foreword
1 Scope
2 Normative references
3 Terms and definitions
3.1 Appliance and its constituent parts
3.2 Adjustment, control and safety devices
3.3 Appliance operation
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 appliance
5 Construction and design requirements
5.1 General
5.2 Adjusting, control and safety devices
5.3 Ignition devices
5.4 Combustion and dilution air, pre-purge and post-purge
5.5 Flame supervision system
5.6 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
5.11 Gas pressure points
5.12 Facilities for commissioning and testing
5.13 Additional requirements for appliances designed for
permanent outdoor installation
6 Operational requirements
6.1 Soundness of the gas circuit
6.2 Heat inputs
6.3 Limiting temperatures
6.4 Ignition, cross-lighting, flame stability
6.5 Combustion
6.6 Overheat cut-off device
6.7 Air proving device(s)
6.8 Weather resistance
7 Test methods
7.1 General
7.2 Automatic burner control systems (manually operated
devices)
7.3 Safety of operation
8 Marking and instructions
8.1 General
8.2 Description
8.3 Data plate
8.4 Other marking
8.5 Marking on the packaging
8.6 Profile plate
8.7 Instructions
Annex A (informative) National situations
Annex B (normative) Identification of symbols used for
marking
Annex C (informative) Guidance for limitations of
application of direct-fired air heaters in
buildings
Annex D (normative) Special national conditions
Annex E (informative) National solutions for countries
whose national bodies are Affiliate Members of CEN
Annex ZA (informative) Relationship between this European
Standard and the Essential Requirements of EU
Directive 90/396/EEC (Gas Appliance Directive)
Bibliography
Describes the requirements and test methods for the safety of non-domestic direct gas-fired forced convection air heaters having fully automatic control systems, hereafter referred to as "appliances".
| DevelopmentNote |
Together with UNI EN 1020, UNI EN 621, UNI EN 778 and UNI EN 1319, it supersedes UNI 8124 and UNI 8125. (08/2001)
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| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| UNI 8125 : 82 AMD 211 87 | Identical |
| SN EN 525 : 2009 | Identical |
| NEN EN 525 : 2009 | Identical |
| NBN EN 525 : 2009 | Identical |
| NS EN 525 : 2009 | Identical |
| UNE-EN 525:2010 | Identical |
| DIN EN 525:2009-11 | Identical |
| BS EN 525:2009 | Identical |
| I.S. EN 525:2009 | Identical |
| EN 525:2009 | Identical |
| NF EN 525 : 2009 | Identical |
| ISO 7005-2:1988 | Metallic flanges — Part 2: Cast iron flanges |
| ISO 6976:2016 | Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition |
| EN 10226-2:2005 | Pipe threads where pressure tight joints are made on the threads - Part 2: Taper external threads and taper internal threads - Dimensions, tolerances and designation |
| EN 60730-2-9:2010 | Automatic electrical controls for household and similar use - Part 2-9: Particular requirements for temperature sensing controls |
| ISO 7005-3:1988 | Metallic flanges Part 3: Copper alloy and composite flanges |
| EN ISO 3166-1:2014 | Codes for the representation of names of countries and their subdivisions - Part 1: Country codes (ISO 3166-1:2013) |
| EN 161:2011+A3:2013 | Automatic shut-off valves for gas burners and gas appliances |
| ISO 1182:2010 | Reaction to fire tests for products Non-combustibility test |
| EN ISO 228-1:2003 | Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) |
| EN 437:2003+A1:2009 | Test gases - Test pressures - Appliance categories |
| EN 126:2012 | Multifunctional controls for gas burning appliances |
| 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 |
| ISO 3166-1:2013 | Codes for the representation of names of countries and their subdivisions Part 1: Country codes |
| EN 61058-1:2002/A2:2008 | SWITCHES FOR APPLIANCES - PART 1: GENERAL REQUIREMENTS |
| EN 61558-2-6:2009 | Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers |
| EN 60335-1:2012/A13:2017 | HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 1: GENERAL REQUIREMENTS (IEC 60335-1:2010, MODIFIED) |
| EN 298:2012 | Automatic burner control systems for burners and appliances burning gaseous or liquid fuels |
| ISO 7005-1:2011 | Pipe flanges — Part 1: Steel flanges for industrial and general service piping systems |
| EN 60529:1991/AC:2016-12 | DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015) |
| 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 |
| EN 88-1:2011+A1:2016 | Pressure regulators and associated safety devices for gas appliances - Part 1: Pressure regulators for inlet pressures up to and including 50 kPa |
| ISO 228-1:2000 | Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation |
| EN 60730-1:2016 | Automatic electrical controls - Part 1: General requirements |
| EN 257:2010 | Mechanical thermostats for gas-burning appliances |
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