ASHRAE指南23建立了必要的推荐设计和应用指南，以实现在轨道交通系统环境中运行的轨道客车上使用的加热、通风和空调设备的可接受性能和安全水平。该指南涉及环境条件、设备配置、空气过滤、温度和湿度控制、加热和制冷能力的测定和试验验证、通风标准、乘客舒适性标准、材料、包装、噪音、振动和冲击、制冷剂选择、能效、防腐、电压和电气要求，电源和电磁干扰。 引文:ASHRAE指南

ASHRAE Guideline 23 establishes recommended design and application guidelines necessary to achieve an acceptable level of performance and safety for heating, ventilating, and air-conditioning equipment used on rail passenger vehicles operating in the environment of rail transportation systems.The guideline addresses environmental conditions, equipment configurations, air filtration, temperature and humidity controls, determination and test verification of heating and cooling capacity, ventilation standards, passenger comfort criteria, materials, packaging, noise, vibration and shock, refrigerantselection, energy efficiency, corrosion protection, voltage and electrical requirements, power supply, and electromagnetic interference.