Operating instructions

ManualsBrandsViessmann ManualsBoilerVITOTRONIC 100 GC1B

134

Components

Function extension 0−10V (cont.)

Boiler system with

Function Condition at Vitotronic

Vitotronic100 Demands to the boiler

in accordance with the

set operating mode and

set temperature; the

0−10 V hook−up creates

an additional set value

Code "01:1"

Multi−boiler system with

external cascade

Function Preconditions

Vitotronic100 with

enable command via

0−10 V signal

Boiler control via 0−10 V

hook−up:

0 to 1V

H Boiler blocked

H Butterfly valve closed

H Boiler circuit or shunt

pump OFF

1 to 10V

H Boiler water

temperature default

H Enable boiler; the

boiler is held at its

minimum

temperature

H Butterfly valve open

H Boiler circuit or shunt

pump enabled

Code "01:3" at

Vitotronic100

Note

On the lead boiler, the

voltage must be higher

than 1V.

Vitotronic100 with

0−10V signal and enable

via switching outputaVH

The boiler is enabled;

the boiler is held at its

minimum temperature

1−10V additional

temperature default

H Code "01:3" at

Vitotronic100

H Contact at terminal2

and 3 of plugaVH

closed

Note

This contact must

always be closed on the

lead boiler.

5862730GB