SIST EN 16430-2:2015
(Main)Fan assisted radiators, convectors and trench convectors - Part 2: Test method and rating for thermal output
Fan assisted radiators, convectors and trench convectors - Part 2: Test method and rating for thermal output
This European Standard applies to the thermal output testing of fan assisted radiators, convectors and trench convectors, i.e.
- fan assisted radiators and convectors , provided the heater has a dedicated fan or fans,
- trench convectors with and without fan(s), provided the heater and the fan(s) are dedicated,
- ventilation radiators and convectors.
Gebläseunterstützte Heizkörper, Konvektoren und Unterflurkonvektoren - Teil 2: Prüfverfahren und Bewertung der Wärmeleistung
Diese Europäische Norm gilt für die Prüfung der Wärmeleistung von gebläseunterstützten Heizkörpern, Konvektoren und Unterflurkonvektoren, d. h. für:
- gebläseunterstützte Heizkörper und Konvektoren, vorausgesetzt der Wärmeerzeuger besitzt ein oder mehrere fest eingebaute Gebläse;
- Unterflurkonvektoren mit und ohne Gebläse, vorausgesetzt das/die Gebläse fest eingebaut sind;
- Lüftungsheizkörper und -konvektoren.
Radiateurs assistés par ventilateur, convecteurs et convecteurs de caniveaux - Partie 2: Méthode d'essais et d'évaluation de la puissance thermique
La présente norme européenne s’applique aux essais de puissance thermique des radiateurs assistés par ventilateur, convecteurs et convecteurs de caniveaux, c’est-à-dire
- radiateurs assistés par ventilateur et convecteurs, sous réserve que l’élément chauffant ait un ou des ventilateurs dédiés ;
- convecteurs de caniveaux avec et sans ventilateur(s), sous réserve que l’élément chauffant et le(s) ventilateur(s) soi(en)t dédié(s) ;
- radiateurs et convecteurs à ventilation.
Končni prenosniki toplote z ventilatorjem, konvektorji in talni konvektorji - 2. del: Preskusne metode in vrednotenje toplotnega oddajanja
Ta evropski standard se uporablja za preskušanje toplotnega oddajanja končnih prenosnikov toplote z ventilatorjem, konvektorjev in talnih konvektorjev tj.
– radiatorjev z ventilatorji in konvektorjev, če ima grelnik namenski ventilator ali ventilatorje,
– talnih konvektorjev z ventilatorji ali brez njih, če so grelniki in ventilatorji namenski,
– prezračevalnih radiatorjev in konvektorjev.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gebläseunterstützte Heizkörper, Konvektoren und Unterflurkonvektoren - Teil 2: Prüfverfahren und Bewertung der WärmeleistungRadiateurs assistés par ventilateur, convecteurs et convecteurs de caniveaux - Partie 2: Méthode d'essais et d'évaluation de la puissance thermiqueFan assisted radiators, convectors and trench convectors - Part 2: Test method and rating for thermal output91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 16430-2:2014SIST EN 16430-2:2015en,fr,de01-marec-2015SIST EN 16430-2:2015SLOVENSKI
STANDARD
SIST EN 16430-2:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16430-2
December 2014 ICS 91.140.10 English Version
Fan assisted radiators, convectors and trench convectors - Part 2: Test method and rating for thermal output
Radiateurs assistés par ventilateur, convecteurs et convecteurs de caniveaux - Partie 2: Méthode d'essais et d'évaluation de la puissance thermique
Gebläseunterstützte Heizkörper, Konvektoren und Unterflurkonvektoren - Teil 2: Prüfverfahren und Bewertung der Wärmeleistung This European Standard was approved by CEN on 9 November 2014.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status 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, 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16430-2:2014 ESIST EN 16430-2:2015
EN 16430-2:2014 (E) 2 Contents Page
Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Radiators and convectors with fan(s) and trench convectors with and without fan(s) .5 4.1 Preparation of the closed test room .5 4.1.1 Trench convectors .5 4.1.2 Fan assisted radiators and wall mounted convectors .6 4.2 Test procedure .7 4.2.1 Scope of testing .7 4.2.2 Determination of the thermal output.7 4.3 Test report . 12 5 Ventilation radiators and trench convectors . 13 5.1 Design . 13 5.1.1 Wall mounted radiators . 13 5.1.2 Trench convectors . 13 5.2 Thermal output testing for ventilation radiators and trench convectors. 14 5.3 Test facilities . 15 5.3.1 General . 15 5.3.2 Ventilation facility . 17 5.4 Test method . 18 5.5 Test . 18 5.5.1 General . 18 5.5.2 Test structure . 18 5.5.3 Selection of heating appliances to be tested . 18 5.5.4 Standard reference point and standard water flow rate . 18 5.5.5 Test temperatures and test scope . 19 5.5.6 Steady state conditions . 19 5.5.7 Correction due to the air pressure . 20 5.5.8 Test results – characteristic curves field . 20 5.5.9 Standard thermal output . 21 5.6 Test report . 23 5.6.1 General . 23 5.6.2 Data . 23
SIST EN 16430-2:2015
EN 16430-2:2014 (E) 3 Foreword This document (EN 16430-2:2014) has been prepared by Technical Committee CEN/TC 130 “Space heating appliances without integral heat sources”, the secretariat of which is held by UNI. 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 June 2015 and conflicting national standards shall be withdrawn at the latest by June 2015. 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. The European Standard "Fan assisted radiators, convectors and trench convectors" consists of the following parts: - Part 1: Technical specifications and requirements - Part 2: Test method and rating for thermal output - Part 3: Test method and rating for cooling capacity According to the CEN-CENELEC Internal Regulations, 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16430-2:2015
EN 16430-2:2014 (E) 4 1 Scope This European Standard applies to the thermal output testing of fan assisted radiators, convectors and trench convectors which are factory assembled or kits, i.e. — fan assisted radiators and convectors, provided the heater has a dedicated fan or fans; — trench convectors with and without fan(s), provided the heater and the fan(s) are dedicated; — ventilation radiators and convectors. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 442-2, Radiators and convectors - Part 2: Test methods and rating EN 636, Plywood - Specifications EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025) 3 Terms and definitions For the purposes of this document the terms and definitions given in EN 442-2 and the following apply. 3.1 trench convectors convectors installed in a trench in the floor mostly in front of glass facades, including the covering of the trench 3.2 fan assisted radiators and convectors radiators and convectors according to EN 442-2 and trench convectors according to 3.1 equipped with fans to increase the convective thermal output/ cooling capacity of the radiator, convector or trench convector 3.3 ventilation radiators and convectors radiators or convectors, which, apart from heating rooms normally, also heat the incoming air (outside air) Note 1 to entry: In this context, the air is led directly to the radiator and, once heated by the radiator, fed to the room. The controlled air feed is performed mechanically, either using a fan in the primary air system or through an exhaust air system. 3.4 primary air unit unit connected to the radiator, convector or trench convector which supplies primary air to the room, preheated or pre-cooled by the radiator, convector or trench convector 3.5 basic units regularly repeated sections of the radiator/convector equipped with fans 3.6 extension units parts of the fan assisted radiator/convector in addition to the basic units which are not equipped with a fan SIST EN 16430-2:2015
EN 16430-2:2014 (E) 5 4 Radiators and convectors with fan(s) and trench convectors with and without fan(s) 4.1 Preparation of the closed test room 4.1.1 Trench convectors The back wall of the test room shall be cooled to a surface temperature of 16 °C ± 0,5 K during the test (see Figure 1). This can be done either by the back wall itself or by a flat cooling surface (emission coefficient has to be at least 0,9) covering the whole width and height of the room placed in front of the back wall of the closed test room in accordance with EN 442-2. The space between the cooling plate and the booth back wall shall be closed off to prevent air from flowing through. Dimensions in metres
Key a cooling surface, temperature 16 °C ± 0,5 K 1 reference air temperature tr Figure 1 — Positioning of the cooling surface in the test room The trench convector with its associated trench and the intended covering is installed in the booth floor in front of this cooling surface, flush with the finished floor level, in accordance with the manufacturer's instructions. Unless other dimensions have been given by the manufacturer, the distance between the trench and the cooled back wall shall be 0,05 m (see Figure 2). For the purposes of the test, the trench in itself is covered with a thermal insulation shown in Figure 2 which has a thermal resistance of at least R =1,0 m2K/W. If the floor of the test booth is cooled then the floor has to have a thermal resistance of at least R =2,5 m2K/W. If the floor of the test booth is not cooled then there is no requirement for such a thermal resistance. SIST EN 16430-2:2015
EN 16430-2:2014 (E) 6 Dimensions in millimetres
Key h height c depth
Figure 2a — Positioning of the trench convector, cooled floor Key h height c depth a without requirement Figure 2b — Positioning of the trench convector, without requirement If it is possible to allocate the models to a certain type with a characteristic size (e. g. height of the convector and/or height of the casing) whose changes point to the fact that a continuous dependence of the thermal output can be expected, the smallest and the largest sizes each and so many intermediate sizes shall be tested that a ratio of 1:2 is not exceeded. In the case of trench convectors without fan(s) the convector length to be tested (finned length) should be 2 m; if that length is not available, the next available length > 2 m shall be tested. The length of the sample under test shall be adapted if the requirements for either the minimum or maximum thermal output according to 4.2.1 are not fulfilled. In the case of finned tube convectors, a finned length of 1 m is assumed as the module. In the case of trench convectors with fan(s) the convector length to be tested (finned length) should be at least 1 m, if that length is not available, the next available length > 1 m shall be tested. The length of the sample under test shall be adapted if the requirements for either the minimum or maximum thermal output according to 4.2.1 are not fulfilled. The convector as such is installed in the trench, applying the manufacturer's fixing material, spacers, covering, etc. and following the manufacturer's instructions. The testing application shall be accompanied by drawings showing the dimensions of the trench and the convector as well as the convector's positioning in the trench and the design of the covering. 4.1.2 Fan assisted radiators and wall mounted convectors Radiators and wall mounted convectors shall be installed according to EN 442-2. Unless other dimensions have been given by the manufacturer, the distance between the radiator / convector and the back wall of the test room shall be 0,05 m, the distance between the radiator / convector and the floor of the test room shall be 0,11 m. If it is possible to allocate the models to a certain type with a characteristic size (e. g. height) whose changes point to the fact that a continuous dependence of the thermal output can be expected, the smallest and the largest sizes each and so many intermediate sizes shall be tested that a ratio of 1:2 is not exceeded. In the case of radiators / convectors the length of the sample to be tested (in case of convectors: finned length) should be 1 m, if that length is not available, the next available length > 1 m shall be tested. The length SIST EN 16430-2:2015
EN 16430-2:2014 (E) 7 of the sample under test shall be adapted if the requirements for either the minimum or maximum thermal output according to 4.2.1 are not fulfilled. The radiator / convector as such is installed in the test room, applying the manufacturer's fixing material, spacers, covering, etc., and following the manufacturer's instructions. The testing application shall be accompanied by drawings showing the dimensions of the trench and the convector as well as the radiator's / convector's positioning in the test room and the design of the covering. 4.2 Test procedure 4.2.1 Scope of testing The selection of the samples and the scope of testing shall be to specifications analogous to EN 442-2. The standard heating output is to be determined at different water flow rates with the following limitations: Thermal output: min. 200 W; max. 3 500 W (according at standard conditions). 4.2.2 Determination of the thermal output 4.2.2.1 General The procedure of the test and the determination of the thermal output are performed in accordance with EN 442-2. EN 442-2, applies analogously with regard to the requirements for measuring instruments. Here, a characteristic formula: - = Km „ ûTn
(1) Where: - is the thermal output Km
is the constant of the model ûT is the excess temperature n is the exponent shall be determined on the basis of at least three measuring points, at a constant water flow rate and excess temperatures of ûT = (60 ± 2,5) K; ûT = (50 ± 2,5) K; ûT = (30 ± 2,5) K. The standard rated thermal output results at
ûT = 50 K. Inlet water temperature t1:
75 °C; Outlet water temperature t2:
65 °C; Reference air temperature tr: 20 °C. The standard low thermal output results at
ûT = 30 K. SIST EN 16430-2:2015
EN 16430-2:2014 (E) 8 4.2.2.2 Influence of mass flow on the characteristic curve In case of an influence of the mass flow on the thermal output, it shall be estimated by performing all of the subsequent tests at standard mass flow and – additionally – at 50% and 200% of the standard mass flow. 4.2.2.3 Fan assisted radiators and convectors If the fans do not cover the entire radiator / convector, the performance of the radiator / convector is the sum of the performance of the basic units plus those of extension units. The basic unit is considered as the smallest combination of a regularly repeating radiator / convector section with fan(s). This basic section shall be indicated by the manufacturer. Examined is a combination of basic units of a length of at least 1 m (see 4.1). The performance of a basic unit is determined from this calculation. If the total length of all basic units is less than the total length of the radiator / convector, the standard heat output of the remaining length (difference) shall be determined with a fan speed of 0. (see Figure 6 and Figure 7). If a fan acts upon different lengths of a radiator / convector (e. g, a fan at the end of the radiator / convector), at least 3 lengths (small, medium, longest) shall be measured. Hence a linear characteristic is determined (see Figure 8). See the following examples (Figure 3 – Figure 9):
Key 1 trench convector - trench 2 convector / radiator 3 basic unit 4 fan Figure 3 — Example for two basic units, symmetrical fan positioning SIST EN 16430-2:2015
EN 16430-2:2014 (E) 9
Key 1 trench convector - trench 2 convector / radiator 3 basic unit 4 fan Figure 4 — Example for two basic units, asymmetrical fan positioning
Figure 5 — Example for two basic units with two fans each, symmetrical fan positioning
Key 1 trench convector - trench 2 convector / radiator 3 basic unit 4 fan 5 extension unit Figure 6 — Example for two basic units, one extension uni
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