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GB/T 45902-2025General technical requirements for energy-saving control system for ventilation and air conditioning system in urban rail transit stations (English PDF)

城市轨道交通车站通风空调节能控制系统通用技术条件

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 30, 2025

Implementation date

January 1, 2026

Scope

GB/T 45902-2025 is the English-translated version of 城市轨道交通车站通风空调节能控制系统通用技术条件.

GB/T 45902-2025 is the Chinese national standard covering the control system that trims the chillers and fans of a metro station to the load actually present — the sensors, actuators, control cabinets and workstations, the software functions and the strategy that reads indoor and outdoor conditions together with the plant's own operating parameters, the power distribution and the interfaces, the commissioning and acceptance testing that has to show the saving is real, and the operation and maintenance. It covers electrically driven water-cooled systems, in new, extended and refurbished stations and in retrofits to existing ones. First edition, under the Ministry of Housing and Urban-Rural Development. In force from 1 January 2026. Issued on 30 June 2025, it has been in force since 1 January 2026.

Document preview — GB/T 45902-2025

National Standard of the People's Republic of China

ICS: 91.140.30

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 General Requirements2
5 Performance Requirements3
6 Hardware Configuration3
7 Software Features8
8 Power Distribution10
9 Interface10
10 Adjustment, testing and acceptance10
11 Operation and Maintenance12
12 Marking, packaging, transportation and storage1213
Appendix A (Informative) Monitoring Equipment and Parameters13

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 for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China.

This document is under the jurisdiction of the National Technical Committee for Standardization of Urban Rail Transit (SAC/TC290).

This document was drafted by: Guangzhou Metro Design and Research Institute Co., Ltd., Guangzhou Metro Group Co., Ltd., Shenzhen Metro Group Co., Ltd.

Co., Ltd., Suzhou Rail Transit Group Co., Ltd., Chengdu Rail Transit Group Co., Ltd., Xiamen Rail Construction Development Group Co., Ltd., Ningbo Rail Transit Group Co., Ltd., MTR Rail Transit (Shenzhen) Co., Ltd., Fuzhou Metro Group Co., Ltd., Beijing Metro Co., Ltd., Guangdong Hanwei Technology Co., Ltd., China Railway Fourth Survey and Design Institute Group Co., Ltd., Beijing Urban Construction Design and Development Group Co., Ltd.

Co., Ltd., Tongji University, Guangdong Midea HVAC Equipment Co., Ltd., Nanjing Fuga Automation Technology Co., Ltd., Shenzhen Dashi Intelligent Co., Ltd.

Co., Ltd., Nanjing Yapai Software Technology Co., Ltd., Guangzhou Kehui Energy Co., Ltd., and Shanghai Huadian Power Information Technology Co., Ltd.

The main drafters of this document are: Wang Dijun, He Ligong, Luo Yanping, Luo Hui, Wu Dianhua, Qin Xu, Wang Jingwei, Zhang Yue, Huang Guijie, Zhu Yihao, Cai Changjun, He Zhixin, Yu Junyan, Wu Jiang, Luo Dingxin, Huang Jianhui, Luo Man, Ma Lingzhi, Wang Zhansheng, Wang Qingliang, Xu Changyi, He Sijin, Zhou Min, Wen Minjian, Huang Jia, Liu Cheng, Xu Ling, Zhou Ying, Li Guangwei, Su Jiangchuan, Liu Jing, Che Lunfei, Liu Jun, Li Guoqing, Meng Xin, Li Zhengrong, Xuan Yaoxiong, Su Junfeng, Li Yuanyang, Li Xinmei, Ding Gaohui, Chen Diankun, Zhu Han, Lu Xiaoli, and Wei Yongmei.

Energy-saving control of ventilation and air conditioning in urban rail transit stations General technical conditions of the system

1 Scope

This document specifies the overall requirements, performance requirements, hardware configuration, software functions, and energy-saving control systems for ventilation and air conditioning in urban rail transit stations.

Energy, power distribution, interface and adjustment, testing and acceptance, operation and maintenance, marking, packaging, transportation and storage.

This document is applicable to the energy conservation of electric driven water-cooled ventilation and air conditioning systems for new construction, expansion and renovation of stations, as well as energy conservation renovation of existing stations.

Control system, energy-saving control of other types of ventilation and air-conditioning systems shall be implemented for reference.

2 Normative references

GB/T 14549

GB/T 17215.301

GB 17625.1

GB/T 17626.3

GB/T 27418

GB/T 29618

GB/T 31230

GB 50093

GB 50339

GB 50365

GB 50411

GB 51348

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 A software and hardware integrated control system with dynamic approach adjustment

Applicable to urban rail transit stations, it consists of energy-saving control cabinets, workstations, sensors, actuators, communication networks, energy-saving control and management software By sensing the internal and external environmental parameters of the air-conditioning area and the operating status parameters of the air-conditioning system, the cooling capacity is output according to the load demand changes.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

GB 17625.1 · GB/T 17626.3 · GB/T 27418 · GB/T 29618 · GB/T 31230 · GB 50093 · GB 50339 · GB 50365 · GB 50411 · GB 51348

Editions of GB/T 45902

Edition	Title	Revision	Status
GB/T 45902-2025	General technical requirements for energy-saving control system for ventilation and air conditioning system in urban rail transit stations	current edition	Current

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