Internal Extensions Ea1 - Viessmann Vitocrossal 300 Service Manual
Floor mounted, gas-fired condensing boiler with matrix gas burner and lambda pro control
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Also See for Vitocrossal 300:
- Service instructions manual (164 pages) ,
- Service instructions for contractors (148 pages) ,
- Installation instructions manual (56 pages)
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Vitocrossal 300 CU3A 26 to 57 Service
Internal Extensions EA1
Legend
DE1
Digital input 1
DE2
Digital input 2
DE3
Digital input 3
0 – 10V
0 - 10V input
Power supply
fÖ
A Power supply for additional
40A
accessories
Central fault message/
aBJ
feed pump/DHW recirculation
pump (potential-free)
KM BUS
aVG
Function Description
91
- Quick Links:
- Codes
- Fault Codes
- Parts Lists
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