This heating controller has been developed to provide a temperature control system for room heating, controlling up to 8 zone’s integrating the switching of primary heating source also to control any secondary pumps or zone valves. This ensures the best possible comfort conditions for your home and also reduces energy consumption. ---DIN Rail Mounting Option (DIN Rail not included) ---Output for underfloor heating valve and pump activated when any thermostat calls for heat ---Output for multiple radiator zones ---Output for domestic hot water ---Actuator outputs: 230v ---IP 21 ---Imax 10A ---Model SCU209-LED-TM.