EN 16430-2:2014

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
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.
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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
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

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

(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

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

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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