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The temperature sensors allow the buffer storage temperature to be read at the boiler
Internal solar coil heat exchanger made of steel
High quality and modern technology
With its high-efficiency pump
it will eventually crack
Vaillant VR 71 Zusatzmodul Rost The temperature sensors allow theVaillant VR 71 Additional Module Additional module VR 71 for expanding the multiMATIC 700 and sensoCOMFORT 720 Important instructions In combination with sensoCOMFORT, the Vaillant VR 71 module should be used as the first expansion module. Product benefits: Additional module VR 71 Flexible expansion module VR 71 mixer and solar module for controlling 3 mixer circuits and solar functions Integration of 2 remote control devices possible eBUS interface
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