Viessmann Vitocrossal 300 CA3 2.5 Installation And Service Instructions Manual page 85

Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Adjusting the Heating Curve
Reduced set room temperature
Adjustment of the reduced set room temperature
from 37°F to 52°F (3°C to 14°C).
Legend
Boiler water temperature or supply temperature
A
Outdoor temperature
B
Set room temperature
C
Heating circuit pump "Off"
D
Heating circuit pump "On"
E
Outdoor temperature
Legend
Changing the slope
A
Changing the shift (vertical parallel offset of the
B
heating curve)
Example: Heating curve setting with slope 1.5:
(continued)
Changing the standard set room temperature
Changing the slope and shift
Individually adjustable for each heating circuit.
From the home screen tap the following buttons:
1. Tap "Menu".
2. "Heating circuit 1", "Heating circuit 2" or "Heating
circuit 3" as the required heating circuit.
3. Heating.
4. "Heating curve".
5. +/– for the required value for "Slope" or "Shift".
6. Tap OK to confirm.
Refer to the Vitocrossal 300 CA3
Operating Instructions.
Service
85