Vaillant 0020139836

EBus Power Supply VR 38 When connecting several plants (consisting of an EBus heat generator and an EBus controller) to the Internet Module VR 920 , the VR 38 power supply must be installed. Each heat generator requires a VR 32/3 bus coupler. Up to 6 systems can be connected. Can be used for cascades of up to 4 drinking water stations, in conjunction with a buffer storage if no EBus controller (VRS 620/X) is connected. Standalone system possible

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