2-stage ventilation relay, 1+1 normally open contact, potential-free 16A/250V AC, with DX technology. Bidirectional. Standby loss only 0.1 watts. Connection to the Eltako RS485 bus. Cross-wiring of bus and power supply with jumper. To do this, simply connect the N conductor to terminal (N1) and L to 1 (L) and/or N to (N2) and L to 3 (L). This results in an additional standby loss of only 0.1 watts. If the supply voltage fails, the switching state is retained. When the supply voltage returns, it is switched off in a defined manner. This ventilation actuator evaluates the information from up to 23 passive sensors, such as radio buttons, window-door contacts, window handle sensor FFG7B-rw or radio transmitter modules. Active sensors for CO2, humidity or temperature are also evaluated. Several active sensors can be linked using the PC tool PCT14. If the two contacts are connected in parallel, the 2-stage actuator for 2 fan speeds becomes an actuator for one fan. The middle rotary switch is required in the LRN position for programming. The desired operating mode is set here during operation. The upper rotary switch is set to the type of sensor during programming. A radio button (exclusive) with a double rocker is programmed in the rotary switch position 1. For further setting options, please refer to the operating instructions.
