The fresh air anti-freeze control unit simultaneously satisfies the needs of fresh air intake and cooling, primarily through the coordinated operation of its internal components and a sophisticated control system.
The unit uses a compressor to compress the refrigerant into a high-temperature, high-pressure state. This high-temperature, high-pressure refrigerant then passes through a condenser, releasing heat and condensing into a liquid state. The heat released by the condenser is then effectively dissipated to the external environment, achieving a cooling effect.
Simultaneously, the fresh air anti-freeze control unit is equipped with a ventilation fan. This fan draws in fresh outside air and processes it through the unit's internal air handling system, filtering, heating, or cooling the air to meet the indoor environment's fresh air requirements.
In cooling mode, the unit uses an evaporator to convert the liquid refrigerant into vapor. This process absorbs a significant amount of heat, cooling the air entering the evaporator. This cooled air is then delivered into the room by a blower, achieving a cooling effect.
Furthermore, the fresh air anti-freeze control unit also features a sophisticated temperature control system. This system uses components such as a proportional-integral temperature controller, temperature sensors, and electrically adjustable valves to monitor and control the supply air temperature in real time, ensuring that the indoor temperature remains within the set comfortable range.
To prevent icing inside the unit in cold environments, the fresh air anti-freeze control unit also has an anti-freeze function. When the coil temperature is too low, the anti-freeze switch will activate, and the unit will automatically take corresponding measures, such as stopping the fan and adjusting the opening of the hot water valve, to prevent damage from icing inside the unit.
