[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - fan] fan bearing temperature is normal for ≤70 ℃, if once rises to 70 ℃ fan technology, electronic control should (will) alarm. You should find out the reasons exhaust fan fire, first check whether the cooling water properly? Bearing oil level is normal? If you can not find a reason, bearing temperature quickly rose to 90 ℃, electronic control should (will) alarm, stop signal again. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product -] future development will further improve aerodynamic efficiency ventilator fan, device efficiency and efficiency in order to reduce power consumption; with variable pitch axis flow fan instead of a large centrifugal fan; reduce fan noise; improve smoke, dust exhaust fan impeller and casing wear; achieve variable speed adjustment and automatic adjustment. , Fire exhaust fan | Hebei fan | Tianjin Jinzhong Ji fan manufacturers are provided by Tianjin Jinzhong Ji HVAC purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) strong, credible, in Tianjin fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the group into the brilliant and you work for a better future!