The working principle of temperature control/dehumidification machines:

Temperature (Cooling) and Humidity Control Dehumidifiers can heat, cool, and dehumidify the environment to meet indoor temperature and humidity requirements. They use evaporators to cool and dehumidify the air while recovering the condensation heat of the system, compensating for the heat lost during cooling and dehumidification. The Temperature (Cooling) Dehumidifiers can automatically adjust humidity and are ideal for environments with significant temperature changes. They combine cooling and dehumidifying functions into one unit. Recommended for high-heat environments, the heat generated by the unit is discharged outdoors, while the unit operates automatically in low cold and damp conditions.