Cylinder Temperature Control - Viessmann VITOSOLIC 200 Installation And Service Instructions Manual

Function description
Function blocks
S5
Thermost. 1
Th1on > 65 °C
Th1off < 60 °C
■ Boiler circuit pump R3 on:
Temperature differential "ΔT5on" is
exceeded and "Th1on" is reached
■ Boiler circuit pump R3 off:
Temperature differential "ΔT5off" or
"Th1off" is not reached
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".
– "ΔT-Fct5"
Set "Yes".

Cylinder temperature control

The solar circuit pump starts; the cylinder
is heated:
■ When the selected start temperature
differential "ΔTon" is exceeded.
116
(cont.)
S3
R3
ΔT-Fct5
S3-S5 > ΔT5on
R3
2. Main menu
■ "System"
■ "Setting values"
– "Th1on"
Set "65".
– "Th1off"
Set "60".
– "ΔT5on"
Set a value.
– "ΔT5off"
Set a value.
3. Switch sensor S4:
Main menu
■ "System"
■ "Contractor"
– "Sen2 ΔT5Fct"
Set "5".