Viessmann VITODENS 200-W Installation And Service Instructions Manual page 79

Solar
(cont.)
"Frost protection function for solar circuit"
Setting
OFF
ON
"Delta T monitoring"
Setting
OFF
ON
"Night DHW circulation monitoring"
Setting
OFF
ON
"Calculation of solar yield"
Setting
OFF
Calculation of solar yield with Viessmann
heat transfer medium
Calculation of solar yield with water as heat
transfer medium
"Flow rate, solar circuit at max. pump speed"
Setting
7 l/min
... l/min
"Target temperature control"
Setting
OFF
ON
"Set DHW temperature, solar"
Setting
50 °C
... °C
Explanations
0B:0
0B:1 Not required for Viessmann heat transfer medium
Explanations
0C:0
0C:1 No flow rate captured in the solar circuit or flow rate
too low
Explanations
0D:0
0D:1 Unintentional flow in the solar circuit is captured (e.g.
at night)
Explanations
0E:0
0E:1
0E:2 Do not adjust
Explanations
0F:70
0F:1 to Flow rate adjustable from 0.1 to 25.5 l/min
≙
0F:255 1 step 0.1 l/min
Explanations
10:0
10:1 See parameter "11"
Explanations
11:50 Target temperature control switched on (parameter
■
"10:1"):
Temperature at which the solar heated water is to be
stratified into the DHW cylinder.
If parameter "20:9" (heating of 2 DHW cylinders) is
■
set:
When one DHW cylinder reaches its set DHW tem-
perature, the second DHW cylinder is heated.
11:10 to Set solar DHW temperature adjustable from 10 to
11:90 90 °C.
Parameter level 2
79