GB/T 50114-2010 in English

1.0.1 This standard is specially developed for the purpose of unifying professional drawing rules of heating, ventilation and air conditioning, guaranteeing drawing quality, boosting drawing efficiency, realizing distinct and concise drawings, meeting the requirements of design, construction and archiving as well as adapting the requirements of engineering construction.
1.0.2 This standard is applicable to the patterns drawn by the following drawing methods:
1 Manual drawing;
2 Computerized drawing.
1.0.3 This standard is applicable to the following engineering drawing for heating, ventilation and air conditioning profession:
1 Design drawing and completion drawing in each stage of constructed, renovated or extended projects;
2 Surveyed drawings of the former buildings and structures;
3 General design drawing and standard design drawing.
1.0.4 The professional drawing of heating, ventilation and air conditioning shall not only comply with this standard, but also meet the requirements of the national current relevant standards.

1 General Provisions
2 General Requirements
2.1 Line
2.2 Scale
3 Common Legends
3.1 Water and Gas Pipelines
3.2 Air Duct
3.3 Heating, Ventilation and Air Conditioning Equipments
3.4 Regulation and Control Devices and Instruments
4 Drawing Method
4.1 General Requirements
4.2 Plan, Profile and Detailed Drawings of Equipment and Pipeline Layout
4.3 Pipeline System Diagram and Schematic Diagram
4.4 System Number
4.5 Pipeline Elevation, Diameter (and Pressure), Dimensions
4.6 Drawing Method at Pipe Bending, Branching, Overlapping and Concentrated Areas
Appendix A Smoke Damper, Fire Damper Menu
Explanation of Wording in this Standard
List of Quoted Standards