External extension H2
The external extension is connected
to the boiler control unit via the KM
BUS. The following functions can be
controlled or processed via this exten-
sion:
sK
DHW circulation pump
fÖ
Power supply
aVD
&
External blocking
(terminals 2 - 3)
&
External demand
(terminals 1 - 2)
&
External operating mode chan-
geover (terminals 1 - 2)
aVG
KM BUS
The allocation of the "External chan-
geover of operating mode" function is
selected via coding address 91.
Extensions for external connections (accessory)
(cont.)
101
Function description
56
92
550
GB
Содержание VITODENS 300 WB3A
Страница 10: ...Opening the control unit housing 10 5862 570 GB...
Страница 14: ...Closing control unit housing and inserting user interface 14 5862 570 GB...
Страница 122: ...Temperature profile Factory set code F1 6 to F1 15 Control functions cont 106 Function description 5692 550 GB...
Страница 125: ...A1 Main PCB A2 Mains supply unit Connection and wiring diagrams external connections 109 Designs 5692 550 GB...
Страница 129: ...Parts lists cont 113 Parts lists 5692 550 GB...
Страница 130: ...Parts lists cont 114 Parts lists 5692 550 GB...
Страница 131: ...Parts lists cont 115 Parts lists 5692 550 GB...
Страница 132: ...Parts lists cont 116 Parts lists 5692 550 GB...
Страница 133: ...Parts lists cont 117 Parts lists 5692 550 GB...
Страница 145: ...129 5692 550 GB...
Страница 146: ...130 5692 550 GB...
Страница 147: ...131 5692 550 GB...