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GB/T 41703-2022: Design, installation and acceptance specifications for commercial & industrial and similar heat pump hot water system
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 41703-2022 | English | 549 |
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Design, installation and acceptance specifications for commercial & industrial and similar heat pump hot water system
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GB/T 41703-2022
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Basic data | Standard 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
foreword
This 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 system
1 Scope
This 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 references
The 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 engineering
3 Terms and Definitions
GB/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.
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