Input Module 0 To 10V; Resetting Codings To The Factory Setting - Viessmann VITOTRONIC 100 GC1 Installation And Service Instructions Manual

Additional information
System Components
Input Module 0 to 10 V,
From software version 7 of Vitocontrol-S, VD2/CT3, 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˚F
50 to 212˚C 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
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.

Resetting codings to the factory setting

1 2 3 4 5 6 7
114
(continued)
Part No. 7134 561
Electronics
B
ON
1 2 3 4
OFF
1 2 3
_
157 144
A Power supply
(provide disconnect if required by
code)
B DIP switch (see table)
1. Press w and rw simultaneously
for approx. two seconds, until the
first two arrows appear in the
display.
2. Press D.
1 2 3
+
145