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bobcr

Hi
Vaillant have confirmed the Vsmart unit will work with the older 831 Combi.. but the wiring instructions for the ebus do not match the terninals in the boiler. Has anyone fitted a vsmart unit to an 831 combi. What terminals should it be wired to? 3 and 4 without bridge??
Thanks
Bob
 
Not for you to concern yourself with. The case of that boiler forms a vital seal. Removing it is classified as gas work .

Please call in a competent gsr.
 
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