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External Extensions (Accessories) - Viessmann FB2B Installation And Service Instructions Manual

4.8 to 26 kw gas condensing/solar storage combi boiler natural gas and lpg version gas council no.: 47-819-18 19 kw 47-819-19 26 kw
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External extensions (accessories)

Extension AM1
A1
Circulation pump
A2
Circulation pump
fÖ
Power supply [terminals]
Function description
fÖA Power supply terminal for addi-
tional accessories
aVG KM BUS
131

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Vitodens 242-f

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