Filling The Siphon With Water; Setting The Time And Date (If Required) Only For Weather Compensated Control Units; Selecting The Language (If Required) Only For Weather Compensated Control Units - Viessmann Vitodens 333 Service Instructions Manual

Further details regarding the individual steps

Filling the siphon with water

Setting the time and date (if required)
compensated control units
Note
During commissioning, or after prolonged time out of use, it may be necessary
to set the time and date, if the time flashes in the display.
Press the following keys:
1. a/b for the current time.
2. d to confirm; "Date" is dis-
played.
Selecting the language (if required) only for weather com-
pensated control units
Press the following keys:
1. c "Select a heating circuit" will
be displayed.
2. d to confirm; wait approx. 4 s.
Initial start-up, inspection, maintenance
(cont.)
1. Remove the retaining clip and
siphon A.
2. Fill the siphon with water.
3. Fit siphon A and secure with the
retaining clip.
only for weather
3. a/b for the current date.
4. d to confirm.
3. c press again.
4. b for the required language.
5. d to confirm.
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