4. If the control unit had already been
switched ON before filling began:
Start the co ntrol unit and in code 1,
set coding add ress 2F:2.
The d iverter valve will then be in its
central position.
Note
To call up code 1 and for setting the
coding ad dress, see pag e 40.
Whilst filling is in progress, the dis-
play shows bF (co nstant tempera-
ture control units) or "Filling"
(weather-compensated control
units).
Continue filling the system.
5. Close the boiler fill & drain valve
A.
6. Set coding address 2F:0.
Further details regarding the individual steps (cont.)
8
Initial start-up, inspection, maintenance
5692 537 GB
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