SIST EN 13771-1:2017

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kompresorji in kondenzacijske enote za hladilne naprave - Preskušanje lastnosti in preskusne metode - 1. del: Kompresorji za hladilne snoviKältemittel-Verdichter und Verflüssigungssätze für die Kälteanwendung - Leistungsprüfung und Prüfverfahren - Teil 1: Kältemittel-VerdichterCompresseurs pour fluides frigorigènes et unités de condensation pour la réfrigération - Essais de performances et méthodes d'essai - Partie 1: Compresseurs pour fluides frigogènesCompressors and condensing units for refrigeration - Performance testing and test methods - Part 1: Refrigerant compressors27.200Hladilna tehnologijaRefrigerating technology23.140VWURMLCompressors and pneumatic machinesICS:Ta slovenski standard je istoveten z:EN 13771-1:2016SIST EN 13771-1:2017en,fr,de01-januar-2017SIST EN 13771-1:2017SLOVENSKI
STANDARDSIST EN 13771-1:20041DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13771-1
November 2016 ICS 23.140; 27.200 Supersedes EN 13771-1:2003
English Version
Compressors and condensing units for refrigeration - Performance testing and test methods - Part 1: Refrigerant compressors
Compresseurs pour fluides frigorigènes et unités de condensation pour la réfrigération - Essais de performances et méthodes d'essai - Partie 1: Compresseurs pour fluides frigogènes
Kältemittel-Verdichter und Verflüssigungssätze für die Kälteanwendung - Leistungsprüfung und Prüfverfahren - Teil 1: Kältemittel-Verdichter This European Standard was approved by CEN on 13 August 2016.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 23 November 2016.
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
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Avenue Marnix 17,
B-1000 Brussels © 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13771-1:2016 E SIST EN 13771-1:2017

Conversion of measured performance data to specified test conditions for compressors with intermediate pressure port . 36 Bibliography . 39
addition of two-stage and economized compressors; d) addition of transcritical application; e) addition of test requirements for inverter driven compressors; f) addition of cyclic capacity control; g)
addition of the part load conditions according to mandate M/488. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. 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 13771-1:2017

a) Circuit diagram b) Pressure vs enthalpy diagram Key 1 refrigerant gas at the compressor inlet 2 refrigerant gas at the compressor outlet 3 refrigerant gas at the inlet of the condenser/gas cooler 4 refrigerant at the outlet of the condenser or gas cooler 5 refrigerant fluid at the inlet of the expansion device 6 refrigerant gas at the outlet of the calorimeter A compressor B condenser C expansion device D evaporator
Figure 1 — Refrigerant circuit 4 Uncertainty of measurement and test conditions 4.1 Uncertainty of performance data Measuring instruments shall be selected and calibrated so that the final result is within the maximum uncertainties of the measured value as indicated: — refrigerating capacity: ± 2,5 %; — electrical power absorbed: ± 1 % and — mechanical power absorbed: ± 2,5 %. 4.2 Uncertainty of measurement Uncertainty values are considered to cover a 95 % confidence interval, i.e. ± 2 times the standard deviation. Except where otherwise stated in the particular clauses, measurements shall be carried out within the maximum uncertainty of the measured value as indicated: — Absolute pressure: ± 1 %; — Electrical: SIST EN 13771-1:2017

Current ± 1 %;
Frequency: ± 1 %;
Power ± 1 %;
Voltage ± 1 %; — Refrigerant flow: ± 1 %; — Rotary speed: ± 0,07 %; — Mass: ± 0,2 %; — Temperatures:
Temperature for differences: ± 0,05 K;
Temperature differences: ± 1 %;
other temperatures: ± 0,3 K; — Time: ± 0,1 %; — Torque: ± 1 %. — Water flow: ± 1 %. Adherence to the limits listed above does not ensure the requirements of 4.1 are obtained automatically. 4.3 Test conditions The specified test conditions under which the test is to be performed and their allowable deviations are given in Table 3. SIST EN 13771-1:2017

(10) SIST EN 13771-1:2017
b) Pressure vs enthalpy diagram (subcritical)
a) Circuit diagram c) Pressure vs enthalpy diagram (transcritical) Key 1 refrigerant gas at the compressor inlet at the specified test conditions 2 refrigerant gas at the compressor outlet 5 refrigerant fluid at the inlet of the expansion device 6 refrigerant gas at the outlet of the calorimeter A compressor B condenser/gas cooler C expansion device E heater F calorimeter ts temperature of the secondary fluid tcal temperature of the calorimeter surface Figure 2 — Secondary fluid calorimeter, Method A SIST EN 13771-1:2017

b) Pressure vs enthalpy diagram (subcritical)
a) Circuit diagram c) Pressure vs enthalpy diagram (transcritical) Key 1 refrigerant gas at the compressor inlet 2 refrigerant gas at the compressor outlet 5 refrigerant fluid at the inlet of the expansion device 6.1 refrigerant gas at the outlet of F1 6.7 refrigerant gas at the outlet of F7 7 refrigerant fluid at the intermediate pressure port to the compressor A compressor B condenser/gas cooler C1 expansion device C7 expansion device E1 heater of F1 E7 heater of F7 F1 calorimeter F7 calorimeter ts1 temperature of the secondary fluid of F1 ts7 temperature of the secondary fluid of F7 tcal1 surface temperature of F1 tcal7 surface temperature of F7 Figure 3 — Secondary fluid calorimeters, method A for compressor with intermediate pressure inlet SIST EN 13771-1:2017
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