EN 1397:2015

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Wärmeübertrager - Wasser-Luft-Ventilatorkonvektoren - Prüfverfahren zur LeistungsfeststellungÉchangeurs thermiques - Ventilo-convecteurs à eau - Procédures d'essai pour la détermination des performancesHeat exchangers - Hydronic room fan coil units - Test procedures for establishing the performance27.060.30Grelniki vode in prenosniki toploteBoilers and heat exchangersICS:Ta slovenski standard je istoveten z:EN 1397:2015SIST EN 1397:2015en,fr,de01-oktober-2015SIST EN 1397:2015SLOVENSKI
STANDARDSIST EN 1397:19991DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1397
August 2015 ICS 27.060.30 Supersedes EN 1397:1998English Version
Heat exchangers - Hydronic room fan coil units - Test procedures for establishing the performance
Échangeurs thermiques - Ventilo-convecteurs à eau - Procédures d'essai pour la détermination des performances Wärmeübertrager - Wasser-Luft-Ventilatorkonvektoren - Prüfverfahren zur Leistungsfeststellung This European Standard was approved by CEN on 3 July 2015.
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 © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1397:2015 ESIST EN 1397:2015

European foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Designation of fan coil units .6 5 Symbols .6 6 Air flow rate test for ducted units .7 6.1 General conditions .7 6.2 Test installation .7 6.3 Pressure settings .8 6.4 Standard rating conditions .9 6.5 Test procedure .9 6.6 Data to be recorded . 10 7 Capacity rating tests . 10 7.1 General conditions . 10 7.2 Test room . 10 7.3 Installation of the test object . 11 7.4 Standard rating conditions . 11 7.5 Test method . 12 7.6 Measurements criteria . 13 7.7 Uncertainties of measurement from indicated values . 15 7.8 Test duration . 15 7.9 Data to be recorded . 16 8 Performance tests. 17 8.1 General . 17 8.2 Test conditions . 17 8.3 Sweat test . 17 8.4 Condensate disposal test . 17 9 Test report . 18 9.1 General information . 18 9.2 Additional information . 18 9.3 Test results . 18 10 Manufacturer's data . 19 Annex A (informative)
Drawings of the different types of configurations of fan coil units . 20 Annex B (informative)
Air flow rate test for non-ducted units . 23 Annex C (normative)
Design of separation partition for testing of cassette type fan coil units . 25
to entry: This device includes at least a liquid-to-air heat exchanger and a fan, and may be designed for free or ducted intake air and/or for free or ducted delivery of supply air. SIST EN 1397:2015

Key 1 object under test (with 0 Pa at the inlet) 5 adjustable duct resistance (e.g. damper) 2 measured air flow 6 test chamber with airflow measuring apparatus 3 external static pressure 7 fan (may be inside or outside the discharge chamber) 4 ductwork
Figure 1 — Example of test installation (outlet measurement method) SIST EN 1397:2015

Key 1 object under test (with 0 Pa at the inlet) 6 airflow measuring apparatus 2 measured air flow 7 fan 3 external static pressure 8 test chamber 4 ductwork 9 flow straightener 5 adjustable duct resistance (e.g. damper)
Figure 2 — Example of test installation (inlet measurement method) 6.3 Pressure settings For the standard fan speed declared by the manufacturer, the following conditions shall be fulfilled: — 0 Pa at the inlet of the unit; — an external static pressure (ESP) of 50 Pa at the outlet of the unit; — inside the test chamber a static pressure equal to 0 Pa. For air flow rate measurements at other fan speeds than the standard fan speed, the following apply: — no change in the position of the adjustable outlet duct resistance; — 0 Pa at the inlet of the unit; — inside the test chamber a static pressure equal to 0 Pa, so that the same network curve resistance is used (see Figure 3). SIST EN 1397:2015

Key 1 ductwork load curve 2 reference standard speed 3 other speeds X external static pressure difference (Pa) Y flow rate Figure 3 — Setup external static pressure difference of ducted units other speeds 6.4 Standard rating conditions The air flow rate measurement shall be made in isothermal conditions with dry coil, at an ambient temperature of 20 °C and at nominal voltage and frequency as specified by the manufacturer, for all fan speeds declared by the manufacturer, with the allowable deviations as specified in Table 2. Table 2 — Permissible deviations for set values Measured quantity Permissible deviation of the arithmetic mean values from set values Permissible deviations of time-individual measured values from set values Ambient air: dry bulb temperature ± 5 K ± 5 K Voltage ± 1 % ± 2 % External static pressure ± 1 Pa ± 5 Pa 6.5 Test procedure The fan coil shall be disconnected from the cooling or heating power supply or the liquid circulation shall be stopped. Test shall be performed according to ISO 5801. SIST EN 1397:2015

Symbol Unit Atmospheric pressure Patm kPa Voltage - V Frequency - Hz Speed control setting of the fan speed - - Total power input Pelec W Rotational speed of the fan n1 min-1 Air inlet dry bulb temperature tAl °C Air inlet dew point temperature tAldp °C Volume flow rate of air qvA m3/h Mass flow rate of air qmA kg/s External static pressure pA Pa 7 Capacity rating tests 7.1 General conditions 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 No modification such as
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