Texas Horizon Air Conditioning Equipment Co. (www.hxktsb.com) located in Dezhou City, Shandong Province Wu acres Luquantun Industrial Park, Contact: possibility Yuanqing Xiang sent a short period of high temperature air is not large smoke damper Which is good quality, so why use 280-degree heat of it. consider draw more good than harm. should smoke damper valve with a 280-degree model, the reason is very simple, mechanical smoke when the wind is not also a natural complement to the 280 degree it does not make the wind. And just upstairs talking about, should all complement wind up new wind from the outside, does not contain smoke, even temperatures above 100 degrees also to air, otherwise the smoke can not run normally, 100-degree air to promote fire no effect, people can stay in a couple of Baidu dry air into it. After we installed fire dampers, smoke sometimes find it's effect is not very satisfactory, but also the quality of the product is no problem, then what is it the reason for this situation? Mainly in the following two points: First, the damper settings wrong orientation, consider aspects into account from the effects of smoke, exhaust window is probably as close to the orientation set in the housing wall portion. May be out pretty facades, smoke damper settings and even in the middle of the lower part of the interval from the roof of a large smoke damper, is not conducive to natural smoke. Furthermore is damper fenestration area does not meet the criteria: "high regulation" exhaust parts for natural selection window area are clear rules, but because some of the planning staff needs to be carefully pressed accounting standards, or the fixed window The area of ??accounting in the exhaust area of ??the window, resulting in some of the works exhaust window area up to standard requirements directly affect smoke effect. The above two factors is subject to the existence of fire dampers in the winter run, I hope you can help.