Viessmann vitocal 300-g Operating Instructions Manual page 39

Modifying the heat pump characteristics
TV Flow temperature
TA Outside temperature
Press the following keys:
1. "Device settings"
2. "Programming"
3. "Heating circ. 1"
"Heating circ. 2", "Heating circ. 3"
(if installed)
4. y/x for "Heating curve
level"
or
"Heat. curve slope"
Problem
The living space is too
cold during the heating
season
The living space is too hot
during the heating sea-
son
The living space is too
cold during spring/
autumn and during the
heating season
The living space is too hot
during spring/autumn
and during the heating
season
5. ?
6. «/¬ for the required slope
7. ®/° for the required level
8. "OK"
Measure
Adjust the heating
curve slope to the next
higher value (e.g.
0.7)
Adjust the heating
curve slope to the next
lower value (e.g. 0.5)
Adjust the heating
curve level to the next
higher value (e.g. 1)
Adjust the heating
curve level to the next
lower value (e.g. -1)
Further adjustments
(cont.)
to open the selected
menu
Note
The values for slope and
level A as well as for
the heating curve B
change with the axis
designation (value
range for TV, TA).
to confirm and exit the
menu
Example (relative to the
delivered condition)
HEATING CURVE LEVEL = 0
HEATING CURVE SLOPE = 0.7
HEATING CURVE LEVEL = 0
HEATING CURVE SLOPE = 0.5
HEATING CURVE LEVEL = 1
HEATING CURVE SLOPE = 0.6
HEATING CURVE LEVEL = -1
HEATING CURVE SLOPE = 0.6
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