Vaillant 0020170508

Expansion-set STR. HK (pump,mixer) for VSC/VCC/ VSCS 4-5 High-efficiency pump, 3-way mixer, non-return valve, connecting pipes (copper) with connection G3/4, seals as supplement to order no.: 0020170507 for installation in VSC, VCC, VSC S 4-5 Note: Mounting kit for unregulated heating circuit Order no.: 0020170507 must be available. VSC S 4-5 only: The installation kit for an unregulated heating circuit cannot be used when installing the drinking water expansion tank (order no. 0020180979)

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