Control and protection for 2 single/three-phase pumps up to 22A, 230/400 VAC selectable, with automatic alternation between them by means of pressure switches, overload adjustment, lack of air detection in the boiler, lack of water control by built-in hydro level or buoy, with automatic switching of the pumps in case of failure or deactivation of one of them, remote control input, alarm outputs by independent voltage free contact for general alarm and a second one for starting the compressor of the boiler.