Viessmann Vitoplus 300 Service Instructions Manual page 35

Wall mounted oil fired condensing boiler for the combustion of low sulphur fuel oil din 51603-el-1 with integral boiler control unit
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Further details regarding the individual steps
Example 1: Adjustment of the stan-
dard 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
Reduced room temperature:
Initial start-up, inspection, maintenance
(cont.)
2. Adjust the set day temperature with
rotary selector " ts".
The value will be automatically
accepted after approx. 2 s.
Accordingly, the heating curve is
adjusted along set room tempera-
ture axis C, which results in modi-
fied start/stop characteristics of the
heating circuit pumps if the heating
circuit pump logic is enabled.
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 with mixer
M2:
Press a.
"2r" flashes on the display.
Press d.
35

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Vp3a

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