Bticino f430/4 - scs - attuatore termoregolazione 4 rele

This device, through internal relays, executes the commands received from the control unit or from the probe and is necessary for the control of loads such as 3-speed Fan-Coil, motorized valves, pumps and electric radiators. It has four relays, with independent control but the contacts in common, which can be used both to control four distinct loads with the ON \/ OFF function, and to control two single loads with the Open \/ Close function. To manage Open \/ Close loads, it is necessary to configure the actuator with the relay logic interlock and consider contacts C1 \/ C2 respectively for opening and closing the first valve and contacts C3 \/ C4 for opening and the closing of the second valve. The contacts take on different functions when the actuator is used for Fan-Coil control. Contact C1 is of the ON \/ OFF type and controls the valve, contacts C2, C3 and C4 respectively control the minimum, average and maximum fan speed. The fan speed is automatically selected based on the difference between the temperature set by the user and the ambient temperature. Main features Heigh