Input Module 0 To 10V - Viessmann VITOTRONIC 300 GW2 Installation And Service Instructions Manual

System components
Input Module 0 to 10 V, Part No. 7134 561
From software version 7, the Input Module can be connected (software version via scan 2: 1st digit, display 7).
For external control of the boiler/supply temperature via a 0 to 10VDC signal
10 to 100°C or 30 to 120°C
(50 to 212°F or 86 to 248°F)
or
to signal reduced mode and regulate a heating circuit pump to a lower speed.
F1
50mA
(slow)
L1 N S Ö P
40
120 VAC
A
157
fÖ Power connection
aVF 0 to 10VDC input
aVG KM BUS to control unit
aBJ Potential free output contact
DIP switch Function
1 to 3: OFF Switch for pre-set value
1: ON Reduced mode – system circuit A1
2: ON Reduced mode – mixing valve circuit M2
3: ON Reduced mode – mixing valve circuit M3
4: ON Pre-set value default 10 to 100°C / 50 to 212°F
4: OFF Pre-set value default 30 to 120°C / 86 to 248°F
Please note:
Amongst switches 1 to 3, only one switch may be set to ON.
(continued)
Electronics
B
ON
1 2 3 4
OFF
1 2 3 1 2 3
_ +
144 145
A Power supply
(provide disconnect if required by
code)
B DIP switch (see table)
Additional information
113