Viessmann VITOTRONIC 100 GC1B Service Manual download pdf (Page 114)

Additional information

114

System Components (continued)

Input Module 0 to 10 V, Part No. 7134 561

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

to signal reduced mode and regulate a heating circuit pump to a lower speed.

fÖ Power connection

aVF 0 to 10VDC input

aVG KM BUS to control unit

aBJ Potential free output contact

A Power supply

(provide disconnect if required by

code)

B DIP switch (see table)

DIP switch

Function

1 to 3:

OFF

Switch for pre-set value

Reduced mode – system circuit A1

Reduced mode – mixing valve circuit M2

Reduced mode – mixing valve circuit M3

Pre-set value default 10 to 100˚C / 50 to 212˚F

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. Press w and rw simultaneously

for approx. two seconds, until the

first two arrows appear in the

display.

2. Press D.

5351 338 v1.6

OFF

Electronics

24V

120 VAC

157 144 145

N S Ö P 1 2 3 1 2 3

1 2 3 4

50mA

(slow)

1 2 3 4 5 6 7

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 131 132

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Viessmann VITOTRONIC 100 GC1B Service Manual Page 114

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