亚洲精品自在线拍2019&国产一级a&少妇少洁第1一40章李明干白洁&欧美+国产+麻豆&中文乱码欧美日韩更新&一级肉体毛片视频

1. Carefully read the valve manual to understand the basic structure and principle.

2. Operation steps of electric valve.

2.1 Close the air switch of each circuit, when the "on-site or remote control" indicator light is on, switch the "on-site" or "remote" control according to the needs, according to the "close in place" or "open in place" indicator lights, and then choose to open or close the valve operation . Note: When the valve is not closed in place, the "close in place" or "open in place" indicator will not light up. Red light means "valve open in place" or "on-site" control, green light means "valve close in place" or "remote" control.

2.2 To manually open and close, press the manual and automatic switch and rotate the valve at the same time, the "clockwise" direction is to close the valve, the pointer points to 0° when it is closed, and the "counterclockwise" direction is to open the valve, and the pointer is open when it is fully open. Point to 90°.