It includes heat exchanger (usually heat exchanger between cold water pass through the copper tubing and air thoiqua it) and blowers (radial fan) control system includes temperature sensors, valve actuators three falls. .. if the room temperature is greater than the set temperature, the valve 3 open, cold water flows down through the heat exchanger until the temperature drops, the valve temperature 3 set down the cold water closed over the bypass road equipment cold water
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