1、January 2012 Translation by DIN-Sprachendienst.English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 91.140.30!$y+T“1860849www.din.deDDIN EN 15780Ventilation for buildings Ductwork Cleanliness of ventilation systemsEnglish translation of DIN EN 15780:2012-01Lftung von Gebuden Luftleitungen Sauberkeit von LftungsanlagenEnglische bersetzung von DIN EN 15780:2012-01Ventilation des btiments Rseaux de
3、 conduits Propret des systmes de ventilationTraduction anglaise de DIN EN 15780:2012-01www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.3701.12 DIN EN 15780:2012-01 2 A comma is used as the decimal marker. National foreword This sta
4、ndard has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Heiz- und Raumluft-technik (Heating and Ventilation Technology Standards Committee), Working Commi
5、ttee NA 041-02-52 AA Komponenten (SpA CEN/TC 156/WG 3 und WG 4). EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15780 October 2011 ICS 91.140.30 English Version Ventilation for buildings - Ductwork - Cleanliness of ventilation systems Ventilation des btiments - Rseaux de conduits - Propret des
6、 systmes de ventilation Lftung von Gebuden - Luftleitungen - Sauberkeit von Lftungsanlagen This European Standard was approved by CEN on 11 September 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the s
7、tatus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French,
8、 German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cr
9、oatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDAR
10、DIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15780:2011: E2 Contents Page Foreword . 41 Scope 52 No
11、rmative references . 63 Terms and definitions . 64 Symbols and units 75 Criteria for cleanliness and assessment 75.1 General . 75.2 Assessment of the need for cleaning . 75.3 Design and handing over information 85.4 Determination of cleaning interval 85.5 Assessment of the result of cleaning . 86 Me
12、thodology 86.1 General methodology . 86.2 Assessment of the need for cleaning . 106.2.1 General . 106.2.2 Inspection plan 106.2.3 Evaluation methods of dust accumulation. 116.3 Cleaning plan . 116.4 Cleaning methods . 127 Evaluation and reporting 127.1 Evaluation of cleaning 127.2 Cleaning report 12
13、Annex A (informative) Cleanliness quality classes 14A.1 General . 14A.2 Application in general. 14A.3 Assessment frequency recommendation. 14A.4 Cleanliness class quality measurements . 15A.5 Unacceptable fouling Extract . 15A.6 Acceptable dust accumulation level (new ductwork) . 16A.7 Acceptable po
14、st-clean level . 16Annex B (informative) Example of cleaning plan . 17Annex C (informative) Air Handling Units specific guidance . 20C.1 General . 20C.2 Recommendations for all cleanliness quality classes 20C.2.1 Casing, including accessibility/access doors . 20C.2.2 Filters 21C.2.3 Humidifiers 21C.
15、2.4 Coils 21C.2.5 Sound attenuators 21C.2.6 Fan position and cleaning, including fan motors 21C.2.7 Drainage and prevention of condensation . 21C.3 Units for advanced cleanliness quality class 21C.4 Inspection aspects 22Annex D (informative) Filters Specific guidance 23Annex E (informative) Humidifi
16、ers Specific guidance . 24EN 15780:2011 (E) DIN EN 15780:2012-01 3 Annex F (informative) Ductwork Specific installation guidance 25F.1 Acceptable dust accumulation (new ductwork) 25F.2 Protection, Delivery and Installation (PDI) . 25F.3 Application of cleanliness levels - airtightness . 27Annex G (i
17、nformative) Terminal devices and units Specific guidance 28Annex H (informative) Measurement methods for dust accumulation . 29H.1 Evaluation methods of dust accumulation. 29H.1.1 General . 29H.1.2 Visual inspection . 29H.1.3 Methods of verifying deposited solid dust and micro-organisms . 30H.2 Summ
18、ary of methods for evaluation of cleanliness 31Annex I (informative) Preferred vacuum test method 32I.1 Test equipment 32I.2 Sampling procedure . 32I.3 Analysis procedure . 33Bibliography . 34EN 15780:2011 (E) DIN EN 15780:2012-01 4 Foreword This document (EN 15780:2011) has been prepared by Technic
19、al Committee CEN/TC 156 “Ventilation for buildings”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2012, and conflicting national standards shall b
20、e withdrawn at the latest by April 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulat
21、ions, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta
22、, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 15780:2011 (E) DIN EN 15780:2012-01 5 1 Scope This European Standard applies to both new and existing ventilation and air conditioning systems and specifies the assessment crit
23、eria of cleanliness, cleaning procedures of these systems, and the validation of the effectiveness of cleaning applies also to products, which conform to EN 1505, EN 1506, EN 13053, EN 13180 and EN 13403, used in air conditioning and ventilation systems for human occupancy defined in the scope of CE
24、N/TC 156. This European Standard does not apply to installations for industrial processes. Cleanliness of ventilation systems is considered important for human comfort and health, energy consumption, system service life and for cleanliness of operations or processes carried out in the ventilated are
25、a. Considerations for change of component as an alternative for cleaning (e.g. in case of flexible ducts and air filters) are also included. This European Standard specifies general requirements and procedures necessary in assessing and maintaining the cleanliness of ducted ventilation, including: c
26、leanliness quality classification; how to assess the need for cleaning (visual, measurements); assessment frequency (general guidance); guidance of system inspections in accordance with EN 15239, and EN 15240 when relevant; selection of cleaning method to be in line with handing over documentation a
27、ccording to EN 12599; how to assess the result of cleaning. This European Standard is a parallel standard to EN 12097, which specifies requirements for dimension, shape and location for access panels for cleaning and service in ductwork systems. This European Standard is made as an umbrella standard
28、 with informative annexes that can be revised, completed and further added in future revisions of this European Standard for specific system types, and products or applications in the system, such as: Air Handling Units (AHU); filter; humidifiers; heat recovery units; decentralised air treatment uni
29、ts such as fan-coil units, induction units; terminal devices; kitchen extract equipment. The main target groups of this European Standard are specifiers of the cleanliness quality classes and cleaning methods primarily system designers who also specify the system of access, building owners, services
30、 companies, maintenance companies, end users and consultancy and control companies. EN 15780:2011 (E) DIN EN 15780:2012-01 6 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For und
31、ated references, the latest edition of the referenced document (including any amendments) applies. EN 12599, Ventilation for buildings Test procedures and measuring methods for handing over installed ventilation and air conditioning systems EN 12792:2003, Ventilation for buildings Symbols, terminolo
32、gy and graphical symbols EN 14799:2007, Air filters for general air cleaning Terminology 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12792:2003 and EN 14799:2007 and the following apply. 3.1 acceptable cleanliness level amount of dust or other imp
33、urities not to be exceeded, according to the specified measurement method 3.2 acceptable post-clean level no loose dust is detected visually on the duct surface after cleaning and the system is capable reaching an acceptable cleanliness level according to a defined measurement method NOTE In case of
34、 conflict (e.g. between the building owner and the user), or uncertainty objective methods are needed to assess the cleanliness/dirtiness. 3.3 acceptable dust accumulation level (new ductwork) acceptable cleanliness level on new ductwork as handed over from builder to user NOTE In practice this mean
35、s the quantity of pollution which is deemed acceptable. 3.4 cleanliness state or level of pollution defined as acceptable according to specification and a particular measurement method NOTE Cleanliness is not absolute, it is defined by limit values. Dirtiness is the exceeding of such a defined limit
36、 value. 3.5 cleanliness quality class in the scope of this standard there are three levels of cleanliness quality standards to be applied to various buildings and types of system A. Low B. Medium C. High EN 15780:2011 (E) DIN EN 15780:2012-01 7 3.6 visual inspection subjective method to evaluate cle
37、anliness level of surfaces 4 Symbols and units For the purpose of this document, the symbols and units given in EN 12792:2003 apply. 5 Criteria for cleanliness and assessment 5.1 General The key issue is to design, build and maintain the whole ventilation system so that it can be kept clean enough d
38、uring the whole lifetime of the installation. The following requirements, as well as the methodology described in Clause 5, applies to the ductwork but can be also applied to air handling units (according to EN 13053) and entire systems (see EN 13779:2007, Annex A) Therefore it is necessary to speci
39、fy the cleanliness quality class from the beginning and include in the specification both design and installation issues and means to maintain a sufficiently clean ventilation system for its whole lifetime. The design and installation issues shall include (as a minimum): cleanliness quality class; c
40、leanliness criteria and measurement method; production of the system components; delivery to site; site storage; installation; protection of components after installation; handing over the system according to EN 12599 NOTE Annex A presents, as a common classification, three classes of cleanliness, a
41、pplication examples for ductwork, and recommendations for the frequency of regular inspections in accordance with EN 15239. 5.2 Assessment of the need for cleaning Inspection of functionality and cleanliness of ventilation system is a part of proper maintenance of the ventilation systems. Mostly the
42、 inspection of the cleanliness may arise from two purposes: to check if ventilation system is dirty and needs to be cleaned (exceeding of a “target level“ of cleanliness); to evaluate cleanliness after the cleaning work (to check cleaning work). The assessment methodology is presented in 6.2. For ex
43、isting buildings, the inspection shall include a study of the existing documentation and recommendations to complete and update the documents. EN 15780:2011 (E) DIN EN 15780:2012-01 8 5.3 Design and handing over information In the handing-over documents the cleanliness quality class, cleanliness cri
44、teria and measurement methods shall be specified, recommendations for cleaning methods and guidelines for reaching the points to be cleaned shall also be given. The design information shall give consideration to the expected cleaning method. Where the system has been designed to be cleaned by wet cl
45、eaning methods, warning regarding conditions and restrictions of use should be given. For example wet methods are applicable only where ducts are sufficiently moisture-tight, internal surfaces are smooth, and slope and drainage arrangements have been provided so that fluid and contaminant can be eva
46、cuated. A sufficient number of access doors shall be provided in the ductwork. Additionally special care shall be taken regarding obstacles to cleaning such as dampers, sound attenuators etc., which are mounted in the ducts. In many cases additional access doors are needed after or before such obsta
47、cle, which then can be cleaned carefully. Requirements for location of and distance between access doors are presented in EN 12097 and EN 13779. 5.4 Determination of cleaning interval The cleaning interval shall in principle be defined by reference to the cleanliness or dirtiness of the system. Cleanliness or dirtiness shall in the first instance be assessed visually and this may be confirmed by means of measurement see Annex A. The inspection interval to determine the need for cleaning may be defined in the system documentation in order to assist w
