Viessmann Vitotronic 200 Installation And Service Instructions For Contractors page 76

Parameter
Solar
(cont.)
23 Stop temperature differential for central heating backup
Display
4 K
... K
24 Start temperature for thermostat function
Display
40 °C
... °C
25 Stop temperature for thermostat function
Display
50 °C
... °C
26 Priority for DHW cylinder
Display
Priority for DHW cylinder 1 – without cycli-
cal heating
Priority for DHW cylinder 1 – with cyclical
heating
Priority for DHW cylinder 2 – without cycli-
cal heating
Priority for DHW cylinder 2 – with cyclical
heating
Cyclical heating without priority for any of
the DHW cylinders
27 Cyclical heating time
Display
15 min
... min
76
Value Explanations
23:4 Parameter "20:4" must be set.
23:1 to Stop temperature differential adjustable from 1 to 29 K
23:29
Value Explanations
24:40 Parameter "20:5" or "20:6" must be set.
24:0 to Start temperature for thermostat function adjustable
24:100 from 0 to 100 °C
Value Explanations
25:50 Parameter "20:5" or "20:6" must be set.
25:0 to Stop temperature for thermostat function adjustable
25:100 from 0 to 100 °C
Value Explanations
26:0
26:1 Parameter "20:9" must be set.
26:2
26:3
26:4 Cyclical heating without priority for one of the DHW
cylinders
Value Explanations
27:15 Once the DHW cylinder with priority is heated up, the
DHW cylinder without priority is heated for a maximum
duration equal to the set cyclical heating time.
27:5 to Cyclical heating time adjustable from 5 to 60 min
27:60