Viessmann Vitodens 200-W B2HE Installation And Service Instructions Manual page 71

Solar
(cont.)
1127.0 "Frost protection function for solar circuit"
Setting
Off
On
1136.2 "Heat transfer medium, solar circuit"
Setting
1394.0 "DHW set temperature for reheating suppression"
Setting
40 °C
1492.0 "Start temperature differential, solar circuit pump"
Setting
8 K
1492.1 "Stop temperature differential, solar circuit pump"
Setting
4 K
1505.0 "Stagnation time reduction"
Setting
5 K
Explanations
Frost protection function for the solar circuit:
0 Not active
1 Enabled
Not required for Viessmann heat transfer medium
Explanations
Setting is required for calculating the solar yield
0 Calculation of solar yield with water as heat transfer
medium
1 Calculation of solar yield with Viessmann heat transfer
medium
Explanations
40 DHW set temperature for reheating suppression.
Above the selected set temperature reheating sup-
pression is active.
0 to 95 DHW set temperature adjustable from 0 to 95 °C
Explanations
Start temperature differential between the actual tem-
perature of temperature sensor
temperature of collector temperature sensor
8 Factory setting: 8 K
2 to 30 Start temperature differential adjustable from 2 to 30 K
Explanations
Stop temperature differential between the actual tem-
perature of temperature sensor
temperature of collector temperature sensor
4 Factory setting 4 K
1 to 29 Stop temperature differential adjustable from 1 to 29 K
Explanations
Temperature differential between the actual tempera-
ture of the collector temperature sensor and the set
maximum collector temperature.
Reduction in the speed of the solar circuit pump to
protect system components and heat transfer medium
5 Factory setting: 5 K
0 Stagnation time reduction not active
1 to 40 Temperature differential adjustable from 1 to 40 K
System configuration (parameters)
% and the actual
and the actual
%
&
&
71