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GB 50365-2019 Standard for operation and management of air-conditioning and ventilation systems

Standards49 clauses

General Provisions

第 1.0.2 条This standard applies to the operation and management of central air conditioning and ventilation systems in …
第 1.0.3 条The operation and management of HVAC systems should follow the principles of safety, energy efficiency, envir…
第 1.0.4 条The operation and management of the air conditioning and ventilation system shall, in addition to complying w…
第 3.1.1 条Operation management of the air conditioning and ventilation system shall include operating management polici…
第 3.1.2 条Operation and maintenance managers and operators shall be trained and qualified before taking up their posts,…
第 3.1.3 条Technical records such as system operation, repair, maintenance and equipment ledgers shall be established an…
第 3.1.4 条System operating parameters (such as temperature, humidity, fresh air volume, pressure difference, etc.) shal…
第 3.1.6 条System equipment and components shall be inspected, cleaned, repaired and maintained on a regular basis, with…
第 3.1.7 条During system operation, indoor air quality shall be monitored; when indicators such as CO₂ concentration and…
第 3.1.8 条In the event of an infectious disease outbreak or public health emergency, the operating mode shall be adjust…
第 3.1.9 条Parts prone to microbial growth, such as cooling towers, condensate drain pans, and humidifiers, shall be cle…

第 2.0.1 条Air conditioning and ventilation system: Composed of the air conditioning system, ventilation system, and smo…
第 2.0.2 条Operation and management: activities involving daily operation, maintenance, testing, adjustment, and energy …
第 2.0.3 条Energy efficient operation: reduce system energy consumption by optimizing equipment operating parameters and…
第 2.0.4 条Indoor air quality: the overall state of various pollutant concentrations in indoor air, along with parameter…
第 2.0.5 条Fresh air volume: the volume of outdoor fresh air introduced indoors per unit time; areas such as hotel guest…
第 2.0.6 条Return air: air returning from an air conditioned room or area to the air conditioning equipment; in hotels, …
第 2.0.7 条Filtration efficiency: the ability of a filter to capture particulate matter. Fresh air and return air system…
第 2.0.8 条Cooling and heating sources: Equipment or systems that provide cooling or heating capacity for the air condit…
第 2.0.9 条Terminal equipment: equipment that directly supplies air to or conditions the air in an air conditioned room,…
第 2.0.10 条Operating parameters: setpoints or measured values such as temperature, humidity, pressure, flow rate and ene…

第 3.1.5 条System start/stop shall follow energy saving and safety principles and shall be adjusted according to outdoor…

第 3.1.10 条Energy efficient system operation shall comply with national energy conservation regulations, and energy savi…
第 3.1.7 条Note : The above clauses are general requirements in Chapter 3 "Basic Provisions" and apply to all types of b…

第 4.1.3 条The operation and management unit shall establish operation management systems, including equipment start sto…
第 4.2.3 条During air conditioning system operation, indoor temperature and humidity parameters shall meet the design re…
第 4.2.5 条The fresh air volume shall meet hygiene requirements and shall not be lower than the design minimum fresh air…
第 4.3.1 条Air filters and filter screens should be inspected, cleaned or replaced regularly. Supply and return air outl…
第 4.3.3 条Equipment such as cooling towers, condensers, evaporators, and fan coil units should be cleaned and descaled …
第 4.3.5 条Air ducts, air outlets, silencers, static pressure boxes, etc. of the HVAC system shall be inspected and clea…
第 4.4.1 条Operation and maintenance personnel should understand the system principles, equipment performance and operat…
第 4.5.1 条In the event of an infectious disease outbreak or severe indoor air quality pollution, the fresh air volume s…

第 4.2.1 条The HVAC system should be turned on 30 minutes before use and turned off 30 minutes after use. In densely occ…
第 4.4.3 条Operation and management records shall be established, including equipment ledgers, operation records, mainte…

第 6.2.3 条Fresh air volume control : The fresh air volume should be dynamically adjusted based on indoor CO₂ concentrat…
第 6.2.4 条Temperature settings : Under cooling conditions, the indoor temperature setpoint shall not be lower than 26℃;…
第 6.2.5 条Intermittent operation strategy : For areas not in continuous 24 hour use (e.g., meeting rooms, ballrooms, so…
第 6.2.6 条Shoulder season operation : When the outdoor air enthalpy is lower than the indoor design enthalpy, priority …
第 6.2.7 条Water system temperature difference control : The supply return water temperature difference of the chilled w…
第 6.2.8 条Equipment start/stop optimization : Cooling towers, chillers, pumps and other equipment should be controlled …
第 6.2.9 条Filter cleaning : Clean or replace air filters regularly to keep fan operating resistance within a reasonable…
第 6.2.10 条Exhaust air heat recovery : When the outdoor air volume and exhaust air volume are large and the temperature …

第 6.1.3 条Emergency response activation conditions : When emergencies such as infectious disease outbreaks, leakage of …
第 6.2.2 条System zoning and isolation : Based on the type of emergency, zone or floor by floor isolate the HVAC system …
第 6.2.4 条Enhanced filtration and purification devices : In emergency conditions, air filters (e.g., primary and medium…
第 6.3.3 条Emergency drill and training : The hotel shall regularly organize emergency drills for the air conditioning a…
第 6.4.2 条Maintenance records under emergency conditions : During emergency response, system operating parameters (such…

第 6.2.1 条Emergency ventilation mode switching : During emergencies (such as epidemics or chemical contamination), the …
第 6.3.1 条Emergency equipment shutdown and restart : In the event of a fire, the power supply to the air conditioning a…

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