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GB/T 17790-2025: Installation specifications for household and similar air-conditioner
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 17790-2025	English	599	Add to Cart	5 days [Need to translate]	Installation specifications for household and similar air-conditioner
GB 17790-2008	English	509	Add to Cart	4 days [Need to translate]	Installation specifications for household and similar air-conditioning
GB 17790-1999	English	439	Add to Cart	4 days [Need to translate]	Installation rule for room air-conditioner

GB/T 17790-2025: Installation specifications for household and similar air-conditioner

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ICS 91.140.30 CCSY61 National Standards of the People's Republic of China Replaces GB 17790-2008 Installation specifications for household and similar air conditioners Published on 2025-10-31 Implemented on May 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of contents

Preface III 1.Scope 1 2 Normative References 1 3.Terms and Definitions 1 4.Air Conditioner Installation Accessory Requirements 2 5.Air Conditioner Installation Requirements 3 6.Air Conditioner Installation Preparation and Operation 7. 7.Air Conditioner Inspection and Acceptance 9. Appendix A (Normative) Installation Standards for Residential Central Air Conditioners 12 Appendix B (Informative) Installation of outdoor air conditioner units inside louvers or building recesses 23 References 25

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document supersedes GB 17790-2008 "Installation Specifications for Household and Similar Air Conditioners". Compared with GB 17790-2008, except for the structural... Aside from structural adjustments and editorial changes, the main technical changes are as follows. ---The scope has removed "personal and property safety, surrounding environment, realization of product pre-defined functions, and" (see Chapter 1 of the.2008 edition); ---The definitions of "residential central air conditioner" and "mounting bracket" have been revised (see 3.1, 3.4, and 3.1 and 3.4 in the.2008 version); ---Added terms and definitions for working at heights, installation accessories, safety belts, safety ropes, and expansion bolts (see 3.8, 3.9, 3.10, and 3.11). 3.12) The term "safe life" and its definition have been deleted (see 3.8 in the.2008 edition); ---Some clause numbers and contents of the air conditioner installation accessory requirements have been changed. General requirements (see 4.1, 4.1 and 4.2 of the.2008 version). Section 4.4), connecting pipes (see 4.2, 4.2.1.1 in the.2008 edition), connectors (see 4.3, 4.2.1.2 in the.2008 edition), piping protection Temperature control materials (see 4.4, 4.2.1.3 of the.2008 edition), electrical wiring (see 4.5, 4.2.2 of the.2008 edition), air conditioning controllers (see...) 4.6 (4.2.3 of the.2008 edition), outdoor mounting brackets and fasteners (see 4.7 (4.3.1~4.3.2 of the.2008 edition), safety belts and Safety rope (see 4.9, 4.5-4.6 in the.2008 edition), and indoor unit wall mounting plate added (see 4.8); ---Some clause numbers and contents of the room air conditioner installation requirements have been changed. General requirements (see 5.1, 4.3.3 and 5.1 of the.2008 version). 5.11, Chapter 9), Used space (see 5.2,.2008 edition), Installation location (see 5.3,.2008 edition), Mounting surface (5.4, 4.3.3 of the.2008 edition), noise and vibration (see 5.5, 5.3 of the.2008 edition), piping requirements (see 5.6,.2008 edition) 5.8.5~5.8.9), condensate drainage requirements (see 5.7, 5.5~5.6 in the.2008 edition), refrigerant (see 5.8, 5.7 in the.2008 edition), Electrical safety (see 5.9,.2008 edition); mechanical strength (see 5.10,.2008 edition); ---Changed some sections of the air conditioner installation preparation and operation. added requirements for the use of refrigerant storage tanks (see 6.1.10), and changed... The content related to safety ropes and safety belts (see 6.2.4,.2008 version 6.2.4) has been revised, and the vacuuming procedure has been modified (see 6.4,.2008 version). Version 6.4); ---The inspection and acceptance procedures for air conditioners have been revised (see Chapter 7, Chapters 7 and 8 of the.2008 edition); ---Some clause numbers and contents of the requirements for central air conditioning unit installer accessories have been changed. General Requirements (see A.1.1,.2008 edition) A.1.1, A.1.2), connecting pipes (see A.1.2, A.1.2.1 in the.2008 edition), insulation materials (see A.1.4, A.1.1 in the.2008 edition) A.1.2.3), electrical wiring (see A.1.5, A.1.2.7 and A.1.2.8 in the.2008 edition), and branch pipes (see A.1.8 in the.2008 edition). A.1.2.2), drain pipes (see A.1.9, A.1.2.4 of the.2008 edition), residual current devices (RCDs) see A.1.11,.2008 edition. A.1.2.6) added connectors (see A.1.3), air conditioning controller (see A.1.6), mounting base (see A.1.7), and hanger brackets (see A.1.2.6). A.1.10); ---Some clause numbers and contents of the central air conditioning unit installation requirements have been changed. General requirements (see A.2.1,.2008 version A.2.1), A.2.11, A.6), Installation preparation (see A.2.2, A.2.2 and A.2.3 in the.2008 edition), Installation location (see A.2.3 in the.2008 edition). (A.2.4), noise and vibration (see A.2.4, A.2.5 in the.2008 edition), and the installation of condensate pipes (see A.2.5, A.2.5 in the.2008 edition). A.2.6), refrigerant piping installation (see A.2.6, A.2.7 in the.2008 edition), electrical safety (see A.2.7, A.2.7 in the.2008 edition) A.2.8), mechanical strength (see A.2.8, A.2.9 in the.2008 edition), A.2.9 thermal insulation and corrosion protection (see A.2.9, A.2.9 in the.2008 edition). A.2.10), other requirements (see A.2.10, A.2.12 in the.2008 edition); ---Changed some content regarding the installation of the refrigerant piping system for central air conditioning units. installation of branch pipes (see A.3.2.3.2, see.2008). (See A.3.2.3.2 of the.2008 edition), refrigerant pipe cleaning (see A.3.2.3.4, see A.3.2.3.42 of the.2008 edition), and airtightness test (see...) A.3.2.3.6 (A.3.2.3.5.1 of the.2008 edition); ---Added requirements for pipe welding operations (see A.3.2.3.5). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China National Light Industry Council. This document is under the jurisdiction of the National Technical Committee on Standardization of Household Appliances (SAC/TC46). This document was drafted by. Qingdao Haier Air Conditioner Co., Ltd., Zhuhai Gree Electric Appliances Co., Ltd., and Guangdong Midea Refrigeration Equipment Co., Ltd. Limited Liability Company, China Household Electric Appliance Research Institute, China Quality Certification Center Co., Ltd., TCL Air Conditioner (Zhongshan) Co., Ltd., Daikin (China) Investment Co., Ltd., AUX Air Conditioning Co., Ltd., Mitsubishi Heavy Industries Jinling Air Conditioner Co., Ltd., Guangzhou Panasonic Air Conditioner Co., Ltd. Qingdao Hisense Hitachi Air Conditioning Systems Co., Ltd., Changzhou Shengdao Testing Technology Co., Ltd., Xiaomi Smart Home Appliances (Wuhan) Co., Ltd., China Household Electric Appliance Research Institute (Beijing) Testing & Certification Co., Ltd., and Weikai Testing Technology Co., Ltd. The main drafters of this document are. Niu Zhaoxue, Yan Ling, Tang Xuejin, Tang Xianyi, Pei Kefan, Zhang Jufa, Zhao Ning, Fei Yue, Ye Luwei, and Wang Xinle. Hu Wuqiang, Ru Zuojie, Meng Zhi, Zhang Wenqiang, Wang Mei, Dai Xingxue, Zhao Yang. The release history of this document and the document it replaces is as follows. ---First published as GB 17790-1999 in.1999, and revised for the first time in.2008; ---This is the second revision. Installation specifications for household and similar air conditioners

1 Scope

This document specifies the procedures for installation of household and similar-purpose air conditioners (hereinafter referred to as "air conditioners") by users after the product leaves the factory. Requirements for air conditioner installation accessories, air conditioner installation requirements, air conditioner installation preparation and operation, air conditioner inspection and acceptance, etc. This document applies to the installation of air conditioners for residential and similar purposes that directly cool or heat indoor air. Note 1.The reinstallation of household and similar air conditioners after use (such as relocation, maintenance disassembly and assembly, etc.) shall be carried out in accordance with this document. Note 2.Appendix A applies to the installation of residential central air conditioning units.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB 1002 Types, basic parameters and dimensions of single-phase plugs and sockets for household and similar purposes GB/T 2099.1 Plugs and sockets for household and similar purposes - Part 1.General requirements GB/T 4706.32 Safety of household and similar electrical appliances - Part 32.Particular requirements for heat pumps, air conditioners and dehumidifiers GB 6095-2021 Fall Protection Safety Belts GB/T 7725 Room Air Conditioners GB/T 14093.1 Environmental Technical Requirements for Mechanical Products - Humid and Hot Environments GB/T 35753-2017 Mounting brackets for outdoor units of air conditioners GB 50019 Code for Design of Heating, Ventilation and Air Conditioning of Industrial Buildings GB 50169 Code for Construction and Acceptance of Grounding Devices in Electrical Installations GB 50243 Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering QB/T 4835 Technical Requirements for Installation, Maintenance and Transportation of Room Air Conditioners Using Flammable Refrigerants

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Household central air conditioner Primarily used in residential and similar applications, it consists of one outdoor unit connected to one or more indoor units via refrigerant piping, enabling... Equipment in which all or some indoor units operate simultaneously. Note. This does not include wall-mounted and floor-standing air conditioners. 3.2 Professional installers will fix the air conditioner in a suitable location and proceed with the installation based on the user's actual environmental conditions and reasonable installation requirements. Perform proper assembly, connection, and debugging to achieve the intended functionality and integrity of the air conditioner. ...