[SWF (B)] Series Low Noise Francis fan is between saving a new fan axial and centrifugal fans between its high pressure centrifugal fans, axial fans high-volume, high-efficiency saving good, low noise, the largest manufacturer of exhaust fan, easy installation features. This series of fan design Ying, compact exhaust fan size, small size, light weight, easy to install, and old-fashioned compared to centrifugal fans can save 20%, speed is less than 2000r / min, the noise is less than 75dB (A ), connecting pipes and fan mounted inside the air conditioner, noise is less than 70dB (A). Can replace 2000pa below, the low-pressure centrifugal fan exhaust fan function, widely used in industrial, civil and other ventilation and dust. Fan coil certain amount of wind, water temperature is constant, the amount of change in the water supply, cooling capacity with horizontal concealed fan coil water supply change, part of the fan coil product performance based on statistics, when the water temperature is 7 ℃, water supply reduced to 80%, the cooling capacity of about 92% original, indicating when the water supply changes affect the cooling capacity is relatively slow. Fan coil supply and return water temperature constant, when the water temperature rises, the cooling capacity with the reduction, according to statistics, when the water temperature rises 1 ℃, reduce the cooling capacity of about 10%, the higher the water temperature exhaust fan, a decrease The larger the dehumidification capacity decreased. Certain water conditions, when the fan coil air volume change, cooling capacity and air treatment enthalpy difference varies, generally reducing the cooling capacity, enthalpy difference increases, the unit cooling capacity of the fan power changed little. Fan coil inlet, when the water temperature difference increases, reducing the amount of water, the heat transfer coefficient of heat exchange coil decreases. In addition, the temperature difference has changed, therefore, fan coil cooling capacity increases with the supply and return water temperature is reduced, according to statistics when the water temperature is 7 ℃, supply and return water temperature increased from 5 ℃ to 7 ℃ When the cooling capacity can be reduced by about 17% exhaust fan how much of a | Hao Yang air conditioning equipment (certified) | exhaust fan is provided by the Texas Air Conditioning Equipment Co. Hao Yang. Air Conditioning Equipment Co., Texas Hao Yang (www.dzapjt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hao Yang air conditioning equipment in leadership with the staff warmly welcome all inquiries negotiations to create Hao Yang air conditioning equipment a better future.