Viessmann VITOTRONIC 100 GC1B Service Manual download pdf (Page 24)

Heating system types

Circuit Diagram 9 (continued)

This circuit diagram represents a

recommendation only. It is the

responsibility of the customer and/or

heating contractor to check that this

recommendation is complete and fully

functional. Three-phase equipment

must be connected via additional

power contactors.

The Vitocrossal 300 is operated with

constant boiler water temperature by

means of the boiler control unit.

Two-stage or modulating burners

can be controlled.

The boiler water temperature which is

established in the heating mode is

higher than the maximum heating

system supply temperature by an

adjustable difference.

Available system accessories

 Flue gas temperature sensor

Coding of

system type

Change required Automatic change

00: 1 ––– With DHW tank:

Coding is automatically changed to ”00: 2”

02: 1 Set coding ”02: 2” for operation with

modulating burner

–––

0C: 4 Set coding ”0C: 0” –––

0d: 2 Set coding ”0d: 0” –––

5351 338 v1.6

IMPORTANT

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Viessmann VITOTRONIC 100 GC1B Service Manual Page 24