ISO INTERNATIONAL STANDARD 13253 Third edition 2017-07 Ducted air-conditioners and air-to-air heat pumps - Testing and rating for performance Climatiseurs et pompes a chaleur air/air raccordés Essais et determination des caractéristiques de performance Reference number IS013253:2017(E) International Organization for Standardization @ IS0 2017 see=ZHEJIANG INST OF STANDARDIZATION C1 5956617 No reproduction or networking permitted without license from IHS IS0 13253:2017(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either Iso at the address below or Iso's member body in the country of the requester. ISO copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinir DrganizationforStandardization Licensee-ZHEJIANG INST.OF STANDARDIZoISQ37 -All rights reserved No reproduction or netwyorking permited without license from IHS IS0 13253:2017(E) Contents Page Foreword ..vi 1 Scope .1 2 Normative references 3 Terms and definitions 4 Symbols. ..4 5 Airflow setting. 5.1 General. .7 5.2 Indoor airflow setting 5.3 ESP for rating.. .7 5.4 Outdoor airflow 5.5 Unit supplied without indoor fan .9 6 Cooling tests .9 6.1 Cooling capacity tests ..9 6.1.1 General conditions 9 6.1.2 Temperature conditions .10 6.1.3 Test conditions. ..11 6.2 Maximum cooling performance test ..11 6.2.1 General conditions ..11 6.2.2 Temperature conditions .11 6.2.3 Airflow conditions.. 6.2.4 Test conditions. .12 6.2.5 Performance requirements ..12 6.3 Minimum cooling performance test .13 6.3.1 Generalconditions .13 6.3.2 Temperature conditions ..13 6.3.3 Airflow conditions. .13 6.3.4 Test conditions.. ..14 6.3.5 Performance requirements .14 6.4 Condensate control and enclosure sweat performance test .15 6.4.1 General conditions .15 6.4.2 Temperature conditions. ..15 6.4.3 Airflow conditions. .15 6.4.4 Test conditions. ..15 6.4.5 Performance requirements ..15 7 Heating tests. ..16 7.1 Heating capacity tests .16 7.1.1 General conditions .16 7.1.2 Temperature conditions ..17 7.1.3 Airflow conditions. ..17 7.1.4 Defrost operation. .18 7.1.5 Test procedure General ..18 7.1.6 Preconditioning period 19 7.1.7 Equilibrium period. ..19 7.1.8 Data collection period. 7.1.9 Test procedure when a defrost cycle (whether automatically or manually initiated) ends the preconditioning period 20 7.1.10 Test procedure when a defrost cycle does not end the preconditioning period .. 20 7.1.11 Test procedure for transient tests. 20 7.1.12 Heating capacity test results 22 7.2 Maximum heating performance test. 22 7.2.1 General conditions .. .22 7.2.2 Temperature conditions .22 Intematonal oganzation @stSar2017 - All rights reserved" ii icensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 d without license from IHS Not for Resale, 2017/9/27 05:25:34 No reproduction or networking pe IS0 13253:2017(E) 7.2.3 Airflow conditions. 22 7.2.4 Test conditions. 23 7.2.5 Performance requirements. 23 7.3 Minimum heating performance test 23 7.3.1 General conditions. 23 7.3.2 Temperature conditions .23 7.3.3 Airflow conditions. 23 7.3.4 Test conditions. 23 7.3.5 Performance requirements 24 7.4 Automatic defrost performance test 24 7.4.1 General conditions 24 7.4.2 Temperature conditions. 24 7.4.3 Airflow conditions 24 7.4.4 Test conditions. 24 7.4.5 Performance requirements. 25 8 Test methods and uncertainties of measurement 25 8.1 Test methods 25 8.1.1 General. .25 8.1.2 Calorimeter test method 25 8.1.3 Indoor air enthalpy method .25 8.1.4 Capacity tests... .26 8.2 Uncertainty of measurement. 26 8.3 Test tolerances for steady-state cooling and heating capacity tests 27 8.4 Test tolerances for performance tests 28 9 Test results 28 9.1 Capacity results 28 9.1.1 General. 28 9.1.2 Adjustments 29 9.1.3 Co