Vitoair Draught Stabiliser - Viessmann VITOTRONIC 300 Installation And Service Instructions Manual

Weather-compensated digital boiler and heating circuit control
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Vitoair draught stabiliser,

A
B
A
B
Function check
H
3
In emergency mode
96
part no. 7338 725 and 7339 703
C
C
Colour coding to DIN/IEC 757
H
5
C
3

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