Viessmann Vitodens 300 Service Instructions Manual page 36

Initial start-up, inspection, maintenance
Further details regarding the individual steps
Reduced room temperature:
Example 2: Modifying the reduced
room temperature from 5 °C to 14 °C.
A Boiler water or flow temperature
in °C
B Outside temperature in °C
C Set room temperature in °C
D Heating circuit pump OFF
E Heating circuit pump ON
Instructing the system user
The system installer must hand the operating instructions to the system user
and instruct them in the operation of the system.
36
(cont.)
1. Select a heating circuit:
Press a.
&
1r flashes on the display.
&
Select heating circuit A1 (heating
circuit without mixer):
Press d.
&
Select heating circuit M2 (heating
circuit with mixer):
– Press a.
– 2r flashes on the display.
– Press d.
2. Call up the set night temperature
with E.
3. Change this value with a and b.
4. Confirm the set value with d.