2.1 normally open type smoke damper functions are as follows: 2.1.1 usually was always open when the fire broke out, the rear control center DC24V power output, the valve automatically closes .2.1.2 when the pipe temperature reaches 280 ℃, fuse action , the valve automatically closes the valve closed .2.1.3 output signals, interlocking exhaust fan to stop .2.1.4 manually shut down, manually open .2.2 normally closed smoke damper, the following functions: normally closed smoke damper, and Name two movements smoke damper. 2.2.1 usually was normally closed when the fire broke damper, by the control center DC24V power input, the valve quickly open the valve opening signal output .2.2.2, .2.2.3 interlock control fire exhaust fan manually open the damper principle , manual reset Close .2.2.4 when the pipe temperature reaches 280 ℃, fuse action, the valve is closed again .2.3 remote control type smoke damper (rope-controlled) function as follows: 2.3.1 has a normally closed exhaust 2.3.2 All functions can be remote manual fire damper open, manual reset Close .2.3.3 rope controlling the distance standard 6m (long customizable) 2.4 automatic reset type smoke damper functions are as follows: 2.4.1 usually was normally closed when the fire broke damper liters Switzerland, by the control center DC24V power input, the valve automatically opens .2.4.2 when the pipe temperature reaches 280 ℃, the fuse action, the valve automatically closes .2.4.3 manually open .2.4 .4 After the valve is opened, without manual reset, simply enter DC24V power, the valve can be automatically reset to its original closed position (this feature is limited to the first temperature sensor is not operating, such as temperature sensors need to be replaced after the operation and can still use the temperature sensor function) .2.4.5 output valve open signal, interlock control exhaust fan start and stop .2.4.6 If memory alloy temperature sensor, can be used repeatedly without replacement fire control valve - Features 1. 70 ℃ or 280 ℃ thermostat automatically turns off (280 ℃ ordering) 2. Electric fire center closed, output DC24V telecommunications 3, manually shut down 4, 5 manual reset. Output signal when closing a set of contacts 6, when the size of the circular air duct please ≥630mm the selection squircle electronically controlled dampers 7. Five-speed manual adjustment valve opening control their ventilation damper damper _ quote _ liter by liter Rui Rui Electrical and Mechanical Ventilation and Air Conditioning Electrical Equipment Factory. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) strong, credible, Shandong Texas fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Swiss mechanical and electrical liter into the brilliant and you work for a better future!