1.防火卷帘门在消防中央控制系统的控制下，按预先设定的程序自动放下（下行），从而达到阻止火焰向其他范围蔓延的作用，为实施消防灭火争取宝贵的时间。

1 fire shutter doors in the central control system of fire control, according to a preset program automatically put down (down), to prevent the flame spread to other function, for the implementation of fire protection for the precious time. 

2.安装在房顶的烟感传感器（简称烟感）首先接到烟雾信号，同时向中央控制系统报警，消防中央控制系统通过识别后接通火警所在区域的防火卷帘门电源，使火灾区域的防火卷帘按一定的速度下行。

2 installed in the roof smoke sensor (hereinafter referred to as smoke) first received the smoke signal, and the alarm to the central control system, fire control central control system through the fire doors power recognition on fire area, the fire area fire shutter according to certain speed down. 

3.当卷帘下行到离地面约1.5米位置时，停止下行，以利于人员的疏散和撤离。防火卷帘门在中间停留一定时间后，再继续下行，直至关闭。

3 when rolling down from the ground about 1.5 meters position, stop down, in order to facilitate the evacuation and evacuation. Fire shutter door in the middle after a certain period of time, and then continue down until closed. 

4.防火卷帘门的下行速度和中间停留时间可在安装时进行调整。 

4 fire shutter door down speed and intermediate residence time can be adjusted during installation.

5.在某些场合，建筑内不配备消防中央控制系统，防火卷帘门仅借助于防火卷帘门的消防控制电器箱实现防火卷帘门的防火规定运行程序。

5 in some cases, the building is not equipped with fire central control system, fire shutter door only by means of fire shutter doors of the fire control electrical box to achieve the fire shutter door of the fire protection program.

6.在这种情况下，当火警发生时，烟雾传感器接收的火警信号直接传至防火卷帘门的消防控制电器箱。

6 in this case, when the fire occurs, the smoke sensor receives the fire alarm signal directly to the fire shutter door fire control electrical box. 

7.在停电的情况下，只能通过拉动铁链将防火卷帘门放下。防火卷帘门配备的手动，只能单向放下，不能提升。 

7 in the case of power failure, only by pulling the chain will fire shutter door down. Fire shutter doors equipped with manual, only one-way down, can not lift.