Shutting Down The System - Viessmann Vitoligno 300-C Installation And Service Instructions For Contractors

Commissioning, inspection, maintenance
Adjusting the heating curves
Reduced room temperature
110
A
C
B -20°C
D
Fig. 27 Changing the reduced room temperature
from 3 to 14 °C
Flow temperature in °C
A
Outside temperature in °C
B
C Set room temperature in °C
Heating circuit pump Off
D
Heating circuit pump On
E
Changing the slope and level
Individually adjustable for each heating circuit.
110
3.5
A
+20
Outside temperature in °C
Fig. 28
Changing the slope.
A
Changing the level (vertical parallel offset of the
B
heating curve)

Shutting down the system

Danger
Contact with live or hot components can result in
dangerous injuries.
Before starting cleaning work, disconnect from
the mains voltage at the fuse or mains isolator.
Wait until the boiler has cooled down.
1. Switch OFF the boiler by pressing the "START/
STOP" button on the control unit.
38
14°C
3°C
E
1.4
B
0.2
-20
(cont.)
Press the following keys:
1. .
å
2. / for selecting the heating circuit.
| ~
3. to confirm.
d
4. / for "Reduced room temperature".
| ~
5. to confirm.
d
6. / for the required value.
| ~
7. to confirm.
d
Press the following keys:
1. .
å
2. / for selecting the heating circuit.
| ~
3. to confirm.
d
4. / for "Heating curve".
| ~
5. to confirm.
d
6. / for "Slope" or "Level".
| ~
7. d to confirm.
8. / for the required value.
| ~
9. to confirm.
d
10. Press to return to default display.
ä
2. Wait until the run-on time has passed and let the
boiler cool down.
3. Switch OFF the mains isolator and safeguard
against switching on.