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InstallationIndications, functions and optionsMessages Commissioning Operation and function
System 17: 2-store solar system with pump logic and heat exchange control
The controller compares the temperature at sensor S1 to the temperatures at
sensors S2 and S4. If the measured temperature differences are higher than the ad-
justed switch-on temperature differences, the pump (R1 and/or R2) will be activat-
ed and the corresponding store will be loaded up to the adjusted store maximum
or set temperature respectively at most. The priority logic effects prior loading of
store 1.
Heat exchange control to an existent store via an additional pump (R3) can be
carried out with another temperature differential function (S3 heat source / S4
heat sink).
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store 1
base
2 / GND
S3 Temperature heat
exchange source
3 / GND
S4 Temperature store
2 base and heat
exchange sink
4 / GND
S5 Free 5 / GND
Relay
R1 Solar pump store 1 R1 / N / PE
R2 Solar pump store 2 R2 / N / PE
R3 Store loading pump R3 / N / PE
R4 Free R4 /R4
R3
R1 R2
S4
S3
S2
S1
Te mp. Sensor
Pt1000
L
R3
R2
R1
GND
S1
S2
S3
S4
S5
VBus
PWM 1
PWM 2
N
R4
V40
VBus
GND
L'
VFS
RPS
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