Partial Fresh Air Ventilation System

These systems consist of heating and cooling coil, compound of fresh air and exhaust gas dumpers, moisturiser, aspirator and ventilator. First of all essential fresh air is mixed with the return air for ventilation in the mixing room. Cooling air which comes from cooling room to cooling coil is cooled and shipped until minimum blowing temperature as meet the room cooling load in the mixing room.  Thus, the desired thermal comfort is provided. Thermostat is a device that is used for temperature control and it can be set a specific temperature value. In addition to that it can be adjusted depending on the temperature differences between internal and external ambient. Mechanical cooling, free cooling or partial free cooling are performed depending on the air temperature's set value by air conditioning system. Mechanical cooling is performed in the case of external air temperature higher than the set value and the minimum essential rate of fresh air is used in the system.