1、 One or more corrigenda exist with corrections to this document. These can be searched online and ordered free of charge at www.beuth.de November 2015 English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth
2、 Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 27.060.30!%G=“2365726www.din.deDIN EN 1397Heat exchangers Hydronic room fan coil units Test procedures for establishing the performance;English version EN 1397:2015,English translation of DIN EN
3、 1397:2015-11Wrmebertrager WasserLuftVentilatorkonvektoren Prfverfahren zur Leistungsfeststellung;Englische Fassung EN 1397:2015,Englische bersetzung von DIN EN 1397:2015-11changeurs thermiques Ventiloconvecteurs eau Procdures dessai pour la dtermination des performances;Version anglaise EN 1397:201
4、5,Traduction anglaise de DIN EN 1397:2015-11SupersedesDIN EN 1397:199905www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 28 pages 10.15 DIN EN 1397:2015-11 2 A comma is used as the decimal marker. Natio
5、nal foreword This document (EN 1397:2015) has been prepared by Technical Committee CEN/TC 113 “Heat pumps and air conditioning units” (Secretariat: AENOR, Spain). The responsible German body involved in its preparation was DIN-Normenausschuss Kltetechnik (DIN Standards Committee Refrigeration Techno
6、logy), Working Committee NA 044-00-11 AA Klte-Apparate. Amendments This standard differs from DIN EN 1397:1999-05 as follows: a) the field of application has been revised to include ducted units 20 kPa) Air dry bulb temperature C 0,2 K dew point temperature C 0,3 K static pressure difference Pa 3 Pa
7、 (p 100 Pa) 3 % (p 100 Pa) Others brine concentration % 2 % atmospheric pressure kPa 0.5 kPa fan speed min-1 1 % mass kg 0.5 % Electrical quantities electric power W 1 % or at least 1 W voltage V 0,5 % current A 0,5 % electrical energy Wh 1 % The heating, the total cooling and latent capacities obta
8、ined from measurements on the liquid side shall be determined with a maximum uncertainty of measurement of 5 % independent of the individual uncertainties of measurement including uncertainties of the properties of fluids. 7.8 Test duration It is necessary to record all the meaningful data continuou
9、sly. In case of recording instruments which operate on a cyclic basis, the sequence shall be adjusted such that a complete recording is effectuated at least once every 30 s. The data shall be measured in steady state operation. The duration of the measurement shall not be less than 30 min. DIN EN 13
10、97:2015-11 EN 1397:2015 (E) 16 7.9 Data to be recorded The data to be recorded for the air flow and capacity tests are given in Table 9. The table identifies the general information required but is not intended to limit the data to be obtained. These data shall be the mean values taken over the data
11、 recording period. Table 9 Data to be recorded Symbol Unit Atmospheric pressure PatmkPa Voltage - V Frequency - Hz Speed control setting of the fan speed - - Rotational speed of the fan n2min-1 Total electric power input PelecW Air inlet dry bulb temperature tAC Air inlet wet bulb temperature tAwC A
12、ir inlet dew point temperature tAdpC External static pressure, where applicable pAPa Mass flow rate of condensate (air side) qmWq/s Inlet liquid temperature tL1C Outlet liquid temperature tL2C Liquid mass flow rate qmLg/s Brine concentration, where applicable - % vol Specific heat capacity of liquid
13、 at tL1cpL1kJ/(kg.K) Specific heat capacity of liquid at tL2cpL2kJ/(kg.K) Specific enthalpy of liquid at at tL1hL1kJ/kg Specific enthalpy of liquid at tL2hL2kJ/kg Liquid side pressure drop pLkPa Total cooling capacity PC W Latent cooling capacity Plat W Sensible cooling capacity PsensW Heating capac
14、ity PH W DIN EN 1397:2015-11 EN 1397:2015 (E) 17 8 Performance tests 8.1 General The sweat test and the condensate disposal test may be executed simultaneously. 8.2 Test conditions The standard conditions for the sweet test and air side condensate disposal test are given in Table 10. Table 10 Standa
15、rd conditions for sweat test and air side condensate disposal test Unit Value Air side conditions air inlet temperature dry bulb C 27 wet bulb C 24 Liquid side conditions Inlet temperature C 6 Outlet temperature C 10 Nominal voltage and frequency shall be used. The fan speed settings shall be as fol
16、lows: for condensate disposal test: minimum; for sweat test: minimum. No external resistance shall be added at the air inlet and outlet of the unit. 8.3 Sweat test Checks shall be made to ascertain whether there is any condensation of water on the casing and water dripping from or being blown off th
17、e fan coil unit. For the sweat test, the grilles, dampers, etc., shall be set to allow for the maximum cooling power. The fan speed shall be at the minimum setting. The specified standard temperature conditions shall be maintained within 1 K. After reaching the specified temperature conditions, the
18、unit shall be operated continuously for a period of four hours. NOTE Visual check can be documented by suitable instruments (e.g. pictures). 8.4 Condensate disposal test Checks shall be made to ascertain whether there is constant disposal of condensed water and no water is dripping from or being blo
19、wn off the fan coil unit. For the condensate disposal test, the grilles, dampers, etc., shall be set to allow for the maximum cooling power. The fan speed shall be at the minimum setting. DIN EN 1397:2015-11 EN 1397:2015 (E) 18 The specified standard temperature conditions shall be maintained within
20、 1 K. After reaching the specified temperature conditions, the unit shall be operated continuously for a period of four hours. NOTE Visual check can be documented by suitable instruments (e.g. pictures). 9 Test report 9.1 General information The test report shall at least contain: a) date; b) test i
21、nstitute; c) test location; d) test supervisor; e) test object designation; 1) type; 2) serial number; 3) name of the manufacturer; f) reference to this European Standard. 9.2 Additional information Additional information given on the rating plate shall be noted and any other information relevant to
22、 the tests. 9.3 Test results Test results shall include: type of configuration of the unit, according to Annex A; settings of the unit : wiring or control signal for fan speed setting, position of dampers and flaps, etc.; standard and application rating conditions, and all relevant data according to
23、 Table 3 and Table 9; results from performance tests with visual remarks. DIN EN 1397:2015-11 EN 1397:2015 (E) 19 10 Manufacturers data The manufacturer or supplier shall supply the test house with the following minimum information for every fan coil unit to identify the fan coil unit and allow its
24、traceability. a) manufacturers identification; b) type, model and serial number designation; c) mounting instructions, maximum water working pressure and temperature; d) standard capacity; e) the power input in W of the fan motors at standard conditions (including fan control if included within the
25、unit); f) voltage, nature and frequency of the current. NOTE Further information can be provided in manufacturers documentation with regard to performance in the range of application. If the unit may be installed with accessories for air intake and/or air diffusion, the manufacturer shall specify th
26、e effect of these accessories on the performance of the fan coil unit, e.g. pressure drop, acoustics. DIN EN 1397:2015-11 EN 1397:2015 (E) 20 Annex A (informative) Drawings of the different types of configurations of fan coil units A.1 General This annex provides drawing schemes associated with desi
27、gnations to show typical existing configurations of fan coil units covered by the standard. The list of described systems is not exhaustive. The air flows at inlet and outlet sections are represented by the arrows. A.2 Non ducted units Figure A.1 Floor mounted (with / without casing) Figure A.2 Wall
28、 mounted (with / without casing) Key 1 floor 2 floating floor Figure A.3 High wall mounted (with / without casing) Figure A.4 Under floor mounted DIN EN 1397:2015-11 EN 1397:2015(E)21 Figure A.5 Under ceiling mounted I-Type (with / without casing/false ceiling) Figure A.6 Under ceiling mounted L-Typ
29、e (with / without casing/false ceiling) Figure A.7 1-way cassette Figure A.8 2-way cassette Figure A.9 4-way cassette A.3 Ducted units Examples of ducted units, on inlet and/or outlet sections, are given in Figures A.10 to A.13. Figure A.10 I-shape DINEN 1397:2015-11EN 1397:2015(E)22 Figure A.11 Y-s
30、hape Figure A.12 H-shape Figure A.13 U-shape DIN EN 1397:2015-11 EN 1397:2015 (E) 23 Annex B (informative) Air flow rate test for non-ducted units B.1 General conditions The measurement of the outlet air flow rate is optional for free delivery units and for ducted units with a declared external stat
31、ic pressure lower than 50 Pa at standard fan speed. For testing, the unit shall include an air filter but no any other accessory for air inlet or diffusion or others. Dampers for fresh air intake shall be closed. NOTE 1 No modification such as sealing is made on the unit before testing. NOTE 2 This
32、maximum mechanical open position might differ from the minimum airflow resistance. If the unit includes flaps, they shall be adjusted in a fixed position according to the manufacturer instructions. If this information is not available, their position shall correspond to the maximum mechanical open p
33、osition, B.2 Testing equipment The air flow measurement equipment consists of a test chamber, an air flow measuring device and an auxiliary fan, all in accordance with ISO 5801. An auxiliary fan shall be used to control the external static pressure at the fan coil outlet. It shall be designed to ove
34、rcome pressure losses through the test setup, and equipped with adjustment means such as dampers, pitch control, or speed control to vary the capacity. B.3 Test installation The discharge section of the fan coil unit shall be connected to an air flow measuring device as described in ISO 5801, throug
35、h a ductwork. In case of several outlet sections, they shall discharge in a common plenum. The fan coil shall be disconnected from the cooling or heating power supply or the liquid circulation shall be stopped. B.4 Standard rating conditions The air flow rate measurement shall be made in isothermal
36、conditions with dry coil, at temperatures between 15 C and 25 C, and at nominal voltage and frequency as specified by the manufacturer, for all fan speed(s) declared by the manufacturer and used for capacity ratings. The external static pressure shall be set to zero Pa at the inlet and outlet of the
37、 unit. DIN EN 1397:2015-11 EN 1397:2015 (E) 24 B.5 Test procedure Test shall be performed according to ISO 5801. The motor shall run for at least half an hour before measuring the flow rate. The air flow rate measurement shall be conducted under steady state conditions, which are assumed to be achie
38、ved when the rotational speed of the fan motor(s) does not change by more than 1 % but not less than 10 r/min within 15 min. B.6 Data to be recorded The data to be recorded for the air flow rate test are given in Table B.1. The table identifies the general information required but is not intended to
39、 limit the data to be obtained. Table B.1 Data to be recorded Symbol Unit Atmospheric pressure PatmkPa Voltage - V Frequency - Hz Speed control setting of the fan speed - - Total power input Pelec W Rotational speed of the fan n1min-1 Air inlet dry bulb temperature tAlC Air inlet dew point temperatu
40、re tAldpC Mass flow rate of air qmAkg/s External static pressure pAPa DIN EN 1397:2015-11 EN 1397:2015 (E) 25 Annex C (normative) Design of separation partition for testing of cassette type fan coil units C.1 General Capacity rating tests of either 1-way, 2-way or 4-way cassette type fan coil units
41、shall be performed using a separation partition between the air inlet section and the air discharge section(s) to limit the effect of possible recirculation of air, as shown in Figure C.1, on the temperature measurements. Key 1 outlet 2 inlet 3 recirculation Figure C.1 Recirculation of outlet air on
42、 a 4-way cassette type unit C.2 1-way and 2-way cassette type For 1-way cassette type fan coil unit, a vertical cardboard partition plate shall be placed to separate the air inlet section from the air discharge section as represented in Figure C.2. For 2-way cassette type fan coil unit, two vertical
43、 cardboard partition plates shall be placed to separate the air inlet section from the two sides of air discharge section as represented in Figure C.3. DIN EN 1397:2015-11 EN 1397:2015 (E) 26 Figure C.2 Position of the vertical separation plate for 1-way cassette type unit Figure C.3 Position of the
44、 vertical separation plates for 2-way cassette type unit The partition plate shall have a height of 50 cm and a width equal to the width of the air inlet/outlet sections. C.3 4-way cassette type For 4-way cassette type fan coil units, the effect of recirculation can be minimized by placing a separat
45、ing cone as represented in Figure C.4. The technique consists of sticking a cardboard separating cone at the inlet to avoid outlet air to mix with inlet air. Even if turbulence can come from the installation, this technique simplifies the measurement. The dimensions of the separating cone shall be as specified in Figure C.4. Key 1 separating cone Figure C.4 Dimensions of the separating cone DIN EN 1397:2015-11
