Viessmann Vitocrossal 300 Service Instructions For Contractors page 83

Solar
(cont.)
Coding in the delivered condition
25:50 Stop temperature for
thermostat function
50 °C.
Start temperature for
thermostat function ≤
stop temperature for ther-
mostat function:
Thermostat function e.g.
for reheating. Switching
output sS is switched off
when the temperature at
sensor / exceeds the
start temperature for the
thermostat function.
Start temperature for
thermostat function >
stop temperature for ther-
mostat function:
Thermostat function e.g.
for utilising excess heat.
Switching output sS is
switched off when the
temperature at sen-
sor / falls below the
start temperature for the
thermostat function.
26:1 Priority for DHW cylinder
1 – with alternate heat-
ing
Only when setting code
20:8.
Possible change
25:0 Start temperature for ther-
to mostat function is adjusta-
25:100 ble from 0 to 100 K
26:0 Priority for DHW cylinder 1
– without alternate heating
26:2 Priority for DHW cylinder 2
– without alternate heating
26:3 Priority for DHW cylinder 2
– with alternate heating
26:4 Alternate heating without
priority for one DHW cylin-
der
Code 2
83