Viessmann Vitodens 050-W Installation And Service Instructions Manual page 53

Parameters
(cont.)
1395.1 "Heating limit: Economy function, outside temperature, heating circuit 1"
Setting
25 °C
2855.1 "Additional (passive) frost protection configuration, heating circuit 1"
Setting
Explanations
Heating circuit pump logic function (summer economy
control):
Heating circuit pump switches off when outside tem-
perature is 1 K above selected value.
Heating circuit pump switches back on when outside
temperature is 1 K below selected value.
25 Heating limit at outside temperature 25 °C
10 to 35 Heating limit adjustable from 10 to 35 °C
Explanations
1 = 1 °C
Setting range: -9 °C to +3 °C
If the outside temperature falls below the set outside
temperature limit, the corresponding heating circuit
pump switches on (applies only to weather-compen-
sated operation).
System configuration (parameters)
53