The size of the outlet depends on the size of the capacity of the indoor unit air conditioner outlet temperature, if the outlet is too big, too long to air duct, the air velocity will decrease, thus affecting the air conditioning effect; if the outlet selection is too small, the airflow speed becomes large, causing the wind blowing straight discomfort caused by the human body, may also lead to excessive noise. General market outlet mainly ABS plastic and aluminum outlet, sometimes for decorating the desired effect, there are custom-made wooden vents. ABS plastic outlet: relatively high pour point is hard to form condensate outlet, the price is relatively high. Aluminum outlet: easy knot condensate, relatively low prices. Duct, a pipeline system for air transport and distribution. There are two composite duct pipe and inorganic air. Duct according to the sectional shape and material classification. Air duct production of stainless steel tube production is sewn seams, rivet joints, flange flange gap at the corners, etc. Apply sealant (such as neutral plastic glass). Should remove surface dust and grease before applying sealant. Press the cross-sectional shape, the wind can be divided into round duct Yupingfeng oral, rectangular duct, oval duct, and other kinds, including circular duct of least resistance, the height of the largest production complex. So the application of a rectangular duct based. Material, duct can be divided into metal duct, composite duct, polymer duct. Oral Yupingfeng | Yellowstone outlet | Wuhan Han Wei Wei Li Yuen Yuen provided by the Wuhan-being of Equipment Co., Ltd. Wuhan Han Wei Li Yuen-being of Equipment Co., Ltd. (www.whhwly.com) strong, credible, in Wuhan, Hubei fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wuhan Han Wei Li Yuen and you hand into the brilliant, for a better future!