Viessmann Vitodens 333 Service Instructions Manual page 36

Initial start-up, inspection, maintenance
Further details regarding the individual steps
Adjusting the set room temperature
Standard room temperature:
Example 1: Modifying the standard
room temperature from 20 °C to 26 °C
A Boiler water temperature 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
36
(cont.)
1. In case of two heating circuits –
select the relevant one:
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. Adjust the set day temperature with
rotary selector ts.
The value will be automatically
adopted after approx. 2 s.
Accordingly, the heating curve is
adjusted along set room tempera-
ture axis C, which results in modi-
fied start/shutdown characteristics
of the heating circuit pumps, if the
heating circuit pump logic is acti-
vated.