2.
Activate the venting program via
coding address "2F:1".
Note
To call up code 1 and for setting the
coding address, see page 39.
For function and sequence of the
venting program, see page 101.
Whilst the venting program runs,
the display shows "EL" (constant
temperature control unit) or
"Venting" (weather-compensated
control unit).
3.
Check the system pressure.
Filling the siphon with water
1.
Remove the retaining clip and
siphon
A
.
2.
Fill the siphon with water.
3.
Fit siphon
A
and secure with the
retaining clip.
Selecting the language (if required) - only for weather-com-
pensated control units
1.
Press
c
.
The display shows "Select heating
circuit".
2.
Press
d
.
3.
After approx. 4 s press
c
.
4.
Select the required language with
b
.
5.
Confirm with
d
.
Further details regarding the individual steps
(cont.)
9
Initial start-up, inspection, maintenance
5692
569
GB
Summary of Contents for Vitodens 300
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