Viessmann VITOCAL 151-A - Setting the Time and Date; Automatic Summer;Wintertime Changeover; Setting the Language; Setting Units

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The "Time" and "Date" are set at the factory. If your
system has been shut down for a prolonged period,
you may need to reset the "Time" and "Date".
Tap the following buttons:
1.
2. "Settings"
3. "Date and time"
4. "Date"
Or
"Time"
5. for the required value
6. to confirm
Automatic "Summer/wintertime" changeover
The automatic changeover from summer/wintertime is
factory-set.
In this menu you can switch the changeover from sum-
mer/wintertime on and off.
Tap the following buttons:
1.
2. "Settings"
3. "Date and time"
4. "Time changeover"
5. for "ON" or "OFF"
6. to confirm
Setting the "Language"
Your contractor will have set the display language dur-
ing commissioning. You can change the language.
Tap the following on-screen buttons:
1.
2. "Settings"
3. "Language"
4. Required language
5. to confirm
Setting "Units"
You can adjust all available units, e.g. for the tempera-
ture, date, pressure, etc.
Tap the following buttons:
1.
2. "Settings"
3. "Units"
4. Select e.g. °C for the temperature.
5. to confirm
Entering the contractor's contact details
You can enter your contractor's contact details. These
can then be called up in the "Information" menu.
Tap the following on-screen buttons:
1.
2. "Information"
3. "Contractor contact details"
4. Relevant entry field
Further adjustments
Setting the "Time" and "Date"
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