Title: +038=564.001-KA007T_01-Aktuator Swegon - Teknisk beskrivelse.pdf
NC - Normaly Closed but open when delivered On delivery, the actuator is equipped with a plastic detail that forces the actuator in open position. This facilita- tes pressure testing the water system and purging it of air. This blocking needs to be manually removed before normal operating.The actuator’s cylindrical position indicator clearly shows the current operating mode – see Figure 2. When the indicator is recessed and level with the casing, the actua- tor is in the closed position. When the indicator is raised above the casing, the actuator is in the open position.Figure 2. ACTUATOR position indicator2