The invention relates to a clean room
fresh air conditioner seasonal mode automatic regulation and control method based on an
enthalpy humidity diagram and a clean room
fresh air conditioner. The method comprises the steps that temperature and
humidity signals of outside air are collected through a temperature and
humidity sensor; the controller calculates the
moisture content and the
enthalpy value based on the temperature and humidity signals; based on the calculated
moisture content and
enthalpy value, the controller judges a current seasonal mode by utilizing enthalpy humidity diagram information, when the
moisture content and the enthalpy value fall in a preset winter area in an enthalpy humidity diagram, the current seasonal mode is judged as a winter mode, when the moisture content and the enthalpy value fall in a preset summer area in the enthalpy humidity diagram, the current seasonal mode is judged as a summer mode, and otherwise, the current seasonal mode is judged as a spring and autumn mode; and the controller outputs a
control signal of a corresponding mode based on the judged seasonal mode so as to start a corresponding functional section in the
air conditioning system. Compared with the prior art, the method has the advantages that the winter, summer or spring and autumn
modes are triggered quickly and accurately according to the external temperature and humidity, so that inaccuracy and
high energy consumption caused by manual intervention are avoided.