1.0.1 This code is worked out of to promote application of advanced technology, in heating, ventilation and air conditioning, reasonably utilize and save energy and re¬source, protect the environment ensure good quality and safety, improve working condi¬tion and build comfortable life.
1.0.2 The code is applicable to design of heating, ventilation and air conditioning in construction, extention and renovation of civil and industrial building.
The code is not applicable to design of buildings with requirements for special pur¬pose, special requirements on purification and protection and design of clean workshops and temporary buildings.
1.0.3 Design scheme of heating, ventilation and air conditioning shall be defined and decided in accordance with purpose, functions, usages, composition of heating and cooling load, environments and power supply together with consideration to safety, environment protection, energy-saving and hygiene after an integrated technical and eco¬nomic comparison. New technology, new methods, new equipment and new material shall be given priority in design.
1.0.4 In design of heating, ventilation and air-conditioning, spaces for installation, operation and maintenance of equipments, pipes and fittings shall be reserved and holes and openings for installation and maintenance shall be reserved in design if necessary. Transportation passway and lifting facilities shall be established for large equipments and pipes.
1. 0.5 For any equipment and pipe possibly harmful to human body, safety protection measures shall be taken during design for heating, ventilation and air conditioning.
1.0.6 For work within earthquake regions or collapsible loess zones, earthquake resistant and valid preventive measures shall be adopted as per the current national standards and codes in heating, ventilation and air conditioning design.
1.0.7 In heating, ventilation and air conditioning design, requirements of the construction and acceptance shall be considered in accordance with relevant codes and requirements. Special requirements on construction and acceptance shall be specified in the design documents.
1.0.8 Design of heating, ventilation and air conditioning works shall meet not only the requirements stipulated in this standard (code), but also those in other current national standard.
1 General Provisions
2 Terms
3 Indoor and Outdoor Design Conditions
3.1 Indoor Air Design Conditions
3. 2 Outdoor Air Design Conditions
3. 3 Solar Irradiance in Summer
4 Heating
4.1 General Requirements
4. 2 Heat Load
4. 3 Heating with Radiators
4. 4 Hot Water Radiant Heating
4. 5 Gas-fired Infrared Radiant Heating
4. 6 Heating with Hot Air and Hot Air Curtain
4. 7 Electric Heating
4. 8 Heating Pipeline
4. 9 Household-based Heat Metering for Central Heating with Hot Water
5 Ventilation
5.1 General Requirements
5. 2 Natural Ventilation
5. 3 Mechanical Ventilation
5. 4 Emergency Ventilation
5. 5 Heat Insulation and Cooling
5. 6 Dust Removal and Purification of Harmful Gas
5. 7 Selection of Equipment and Installation
5. 8 Air-duct and Others
6 Air Conditioning
6.1 General Requirements
6. 2 Load Calculation
6. 3 Air Conditioning System
6. 4 Cold and Hot Water for Air Conditioning and Condensate Water System
6. 5 Air Distribution
6. 6 Air Treatment
7 Cold and Hot Source for Air Conditioning
7.1 General Requirements
7. 3 Heat Pump
7. 4 Lithium-bromide Absorption Unit
7. 5 Cold Storage and Heat Storage
7. 6 Heat Exchange Device
7. 7 Cooling Water System
7. 8 Refrigerating and Heat Supply Station
7. 9 Cold and Thermal Insulation of Equipments and Pipelines
8 Monitoring and Control
8.1 General Requirements
8. 2 Sensors and Actuators
8. 3 Monitoring and Control of Heating And Ventilation System
8. 4 Monitoring and Control of Air Conditioning System
8. 5 Monitor and Control to Air Conditioning Cold and Heat Source and Air Conditioning Water System
8.6 Central Level Monitor Management System
9 Sound Deadening and Vibration Isolation
9.1 General Requirements
9. 2 Silencing and Sound Insulation
9. 3 Vibration Isolation
Appendix A Total Solar Irradiance in Summer
Appendix B Solar Irradiance Through Standard Wiondow Glass in Summer
Appendix C Map of Atmospheric Transparency Grades for Air Conditioning in Summer
Appendix D Heat Loss for Heating Up Cold Air Infiltrated from Slots of Doors/Windows
Appendix E Orientation Correction Factor (n Value) for Infiltrated Cold Air Volume
Appendix F Calculation of Natural Ventilation
Appendix G Minimum Wind Speed of Dust Removal Air Pipe
Appendix H Capacity of Ice Storage Equipment and Air Conditioning Standard Refrigerating Output of Refrigerating Unit with Dual Duty
Appendix J Minimum Thickness of Cold Insulation Materials of Equipments and Pipelines and Thickness of Condensation Prevention Materials of Condensate Pipes
Explanation of Wording in This Code
