Viessmann VITOSOLIC 200 Installation And Service Instructions Manual page 115

Function blocks
S3
Thermost.1
Th1on < 50 °C
Th1off > 55 °C
To switch a DHW circulation pump, acti-
vating the time switch is sufficient. The
DHW circulation pump can also be star-
ted subject to temperature with the sen-
sor S3 in the DHW circulation line.
For parameters in the delivered condi-
tion, see from page 158.
Make the following settings at the
solar control unit:
1. Main menu
■ "System"
■ "Options"
– "Thermost. 1"
Set "Yes".
– "Time switch 1"
Set "Yes".
Example 2— Switching the boiler circuit pump of a solid fuel
boiler
Used functions:
■ Thermostat function 1
■ "ΔT-Fct5"
(cont.)
R3
Time switch 1
Function description
R3
2. Main menu
■ "System"
■ "Setting values"
– "Th1on"
Set "50".
– "Th1off"
Set "55".
– "Time switch 1"
Select period "t on" and "t off".
115