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10
Installation Indications, functions and options MessagesCommissioningOperation and function
System 2: Solar system with 1 store and heat exchange
The controller calculates the temperature difference between collector sensor
S1 and store sensor S2. If the difference is larger than or identical to the adjusted
switch-on temperature difference, the pump (R1) will be switched on and the store
will be loaded until the switch-off temperature difference or the maximum store
temperature is reached.
Heat exchange control to an existent store via an additional pump (R2)
can be carried out with another temperature differential function (S3 heat
source / S4 heat sink).
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature heat
exchange source
3 / GND
S4 Temperature heat
exchange sink
4 / GND
S5 Free 5 / GND
Relay
R1 Solar pump R1 / N / PE
R2 Store loading pump R2 / N / PE
R3 Free R3 / N / PE
R4 Free R4 / N / PE
R2
R1
S3
S2
S1
S4
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