Viessmann VITOTRONIC 050 - Extension Input Module 0 to 10 V

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Components
Extension Input Module 0 to 10 V
The Extension Input Module can be connected from software version 7 of Vitotronic 050 and higher.
To control a secondary side heat exchanger pump, e.g. in a secondary heating loop
or
to signal reduced mode and regulate a heating circuit pump to a lower speed.
fÖ Power connection
aVF 0 to 10V input
(without function)
aVG KM-BUS
aBJ Dry contact
A Main ON/OFF switch
B DIP switch (see table)
DIP switch Function
1 to 3: OFF Controlling the feed pump
1: ON Night contact (reduced mode)
5285 967 v1.2
OFF
A
Electronics
24V 5V
L1
40
157 144 145
N S Ö P 1 2 3 1 2 3
1 2 3 4
ON
F1
T50mA
B
120 VAC