System Diagram; Language Selection - Viessmann VITOCAL 300-A Installation And Service Instructions Manual

System definition control settings

System diagram

Adjust the system diagram during
commissioning according to the sys-
tem version.
For a list of possible system dia-
grams, see page 34.
By selecting the system diagram, all
components associated with the dia-
gram are automatically enabled and
monitored.
Press the following keys:
1. "Device settings".
2. "Programming".

Language selection

"Language" (7001)
Temperature differential heating
The heating limit temperature is
defined with the temperature differen-
tial heating ("Temp. diff. heating"):
Heating limit temperature = set room
temperature – temperature differential
heating
If the outside temperature falls below
the heating limit temperature, central
heating is switched on.
Example:
& Set room temperature: 20 °C
& "Temp. diff. heating" (delivered
condition): 4 K
& Preset hysteresis: 2 K
132
3. "System definition".
4. y/x for "System diagram"
(7000).
5. l/m for the selected value.
6. "BACK" to confirm.
Delivered condition:
Setting range:
Operating instructions
Central heating commences if the
average outside temperature drops
below 16 °C (heating limit tempera-
ture).
Central heating is switched off if the
average outside temperature exceeds
18 °C.
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