en-US/C
A
19
The controller compares the temperature at sensor
S1 to the temperatures at sensors S2, S4 and S5. If
the measured temperature differences are higher than
the adjusted switch-on temperature differences, the
pump (R1) will be activated and the corresponding
tank will be loaded up to the adjusted maximum tem-
perature via the valves (R3, R4). In this system, the
desired tank sequence can be adjusted. Depending on
the valve type used, the corresponding valve logic has
to be selected.
System 5
3-tank solar system with valve logic and priority logic
Ventillogik
1
2
3
4
Durchflussrichtung
im stromlosen Zustand
Sensor/
terminal
Designation
Description
S1
TCOL
Temperature collector
S2
TST1B
Temperature tank 1 bottom
S3
Optional sensor for measure-
ment purposes or options
S4
TST2B
Temperature tank 2 bottom
S5
TST3B
Temperature tank 3 bottom
V40
Optional sensor for measure-
ment purposes or options
Relay
Description
R1
Solar pump tank 1
R2
R3
Valve tank 1/2, 3
R4
Valve tank 2/3
Ventillogik
1
2
3
4
Durchflussrichtung
im stromlosen Zustand
Ventillogik
1
2
3
4
Durchflussrichtung
im stromlosen Zustand
Valve logic
Flow direction when the
valve is normally open
Содержание SCU345
Страница 71: ...en US CA 71 Notes ...