Extension Ea1 - Viessmann VITODENS 200-W Service Instructions Manual
Wall mounted gas condensing boiler natural gas and lpg version
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Also See for VITODENS 200-W:
- Installation and service instructions manual (188 pages) ,
- Installation instructions manual (184 pages) ,
- Service instructions manual (150 pages)
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External extensions (accessories)
Extension EA1
DE1
Digital input 1
DE2
Digital input 2
DE3
Digital input 3
0 - 10 V 0 - 10 V input
fÖ
Power supply [terminals]
fÖA
Power supply terminal for addi-
tional accessories
Function description
(cont.)
aBJ
Central fault message/feed
pump/DHW circulation pump
(zero volt)
aVG
KM BUS
123
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