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Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 41703-2022: Design, installation and acceptance specifications for commercial & industrial and similar heat pump hot water system Status: Valid
Basic dataStandard ID: GB/T 41703-2022 (GB/T41703-2022)Description (Translated English): Design, installation and acceptance specifications for commercial & industrial and similar heat pump hot water system Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J73 Classification of International Standard: 27.200 Word Count Estimation: 30,334 Date of Issue: 2022-10-14 Date of Implementation: 2023-05-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 41703-2022: Design, installation and acceptance specifications for commercial & industrial and similar heat pump hot water system---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Design, installation and acceptance specifications for commercial ICS 27.200 CCSJ73 National Standards of People's Republic of China for commercial or industrial and similar purposes Specification for design, installation and acceptance of heat pump hot water system Published on 2022-10-12 2023-05-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbol 2 5 System Design 3 6 System installation 7 7 Engineering acceptance 15 Appendix A (normative) Calculation of the user's maximum daily water consumption16 Appendix B (normative) One-time and hourly hot water water quota and water temperature for sanitary appliances 18 Appendix C (normative) Calculated temperature of cold water 19 Appendix D (normative) Hot water hourly variation coefficient Kh value 20 Appendix E (normative) Hot Melt Operation Requirements 23 Appendix F (Informative) Completion Acceptance Report of Heat Pump Hot Water System Project 25 Reference 26 forewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Refrigeration and Air-conditioning Equipment (SAC/TC238). This document is drafted by. Qingdao Economic and Technological Development Zone Haier Water Heater Co., Ltd., Hefei General Electromechanical Products Testing Institute Co., Ltd., Guangdong Midea Refrigeration Equipment Co., Ltd., Zhejiang Zhongguang Electric Co., Ltd., Kunlin Refrigeration Machinery (Shanghai) Co., Ltd., Guangdong Finnick This energy-saving equipment Co., Ltd., Zhejiang Zhengli Biotechnology Co., Ltd., Guangdong New Energy Technology Development Co., Ltd., Chongqing Midea Refrigeration Equipment Co., Ltd., Dongguan Jinmu Energy Saving Technology Co., Ltd., Dunham Bush (China) Industrial Co., Ltd., Guangdong Sunrise Oriental Air Gas Energy Co., Ltd., Hefei Rongshida Solar Energy Co., Ltd., Hefei General Machinery Research Institute Co., Ltd., Hefei General Environmental Control Technology Co., Ltd. limited liability company. The main drafters of this document. Guo Yanlong, He Zikun, Wang Dingdong, Zhang Dengke, Ling Yongjun, Wang Guang, Liu Yuanhui, Huang Daode, Zhao Misheng, Luo Mingwen, Jia Pengchong, Wang Fazhong, Zhang Chao, Bai Lipeng, Wang Haidi, Shang Yunheng. for commercial or industrial and similar purposes Specification for design, installation and acceptance of heat pump hot water system1 ScopeThis document specifies the system design, system installation and engineering acceptance of heat pump hot water systems for commercial or industrial and similar use. This document applies to the use of electric motor-driven, vapor compression refrigeration cycle, with a nominal heating capacity of 3000W or more, using air or water as heat Design, installation and acceptance of heat pump hot water systems for the purpose of providing domestic hot water. Heat pump hot water heating system and heat pump hot water for other purposes The system can refer to this document.2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document document. GB/T 4272 General Principles of Thermal Insulation Technology for Equipment and Pipelines GB 5749 Hygienic Standard for Drinking Water GB/T 21362 Commercial or industrial and similar heat pump water heaters GB 50015-2019 Design standard for water supply and drainage in buildings GB 50054 Low-voltage power distribution design code GB 50736-2012 Design code for heating ventilation and air conditioning of civil buildings CJ/T 521 Domestic hot water quality standard NB/T 34067-2018 Code for construction and acceptance of air source heat pump hot water engineering3 Terms and DefinitionsGB/T 21362 and the following terms and definitions apply to this document. 3.1 domestic hot water Hot water for bathing and toileting. 3.2 A system that absorbs thermal energy from the environment (air or water) to produce and supply hot water by operating a heat pump hot water unit. Note. Including heat pump water heater, hot water storage tank (tank), circulating pump and other components. 3.3 A system for supplying one (excluding single villas), several buildings or supplying hot water required by one or more functional departments in a multifunctional single building. 3.4 Systems that supply hot water uninterrupted throughout the day, during work shifts or during business hours. 3.5 The ratio of the maximum water consumption to the average water consumption. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 41703-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 41703-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 41703-2022_English with my colleagues?Answer: Yes. 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