We offer expansion modules that allow you to add many new elements to your heating system, which significantly increases the functionality of boiler automation. The CENTRA BORD module allows to connect two additional mixing valves. Selected boiler automations allow simultaneous connection of up to two modules to control up to four additional heating circuits. Thanks to the proprietary BRAGER BUS transmission protocol, our solutions are easily configurable and clearly visible to the system. We designed them from scratch.