Viessmann Vitotronic 200 Installation And Service Instructions Manual page 119

Function extension 0 - 10 V, part no. 7174 718
fÖ Power supply
aVF 0 - 10 V input
aVG KM BUS
DIP switch Function
1 ON Reduced mode, heating circuit A1
4 ON 0 - 100 °C
4 OFF 30 to 120 °C
Note
Amongst switches 1 to 3, only one
switch may be set to "ON".
Plug-in adaptor for external safety equipment, part no. 7143 526
For the connection of the following
external safety equipment to
DIN 4751-2:
Low water indicator
Maximum pressure limiter
Minimum pressure limiter
(cont.)
aBJ zero volt contact
A Main isolator (if required)
B DIP switch (see table)
Additional high limit safety cut-out
Controlled external burner shut-
down
External burner demand (stage 1)
Three external fault messages (zero
volt)
Components
119