ViessmannSKU: HBVV7498513

Viessmann Internal H1 Extension 7498513

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Product features:

  • PCB for installation in the control unit.

Using the extension allows the following functions to be achieved:|Connection of an external safety solenoid valve (LPG) or, alternatively, one of the following functions:|Connection of a DHW circulation pump (only with Vitotronic 200)|Connection of a heating circuit pump (stepped) for a directly connected heating circuit|Connection of a central fault message facility|Connection of a circulation pump for cylinder heatingNote: Not compatible with Vitodens 200-W EM Plusbus

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