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InstallationIndications, functions and optionsMessages Commissioning Operation and function
System 3: Solar system with 1 store and backup heating
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.
Backup heating (R4) can be carried out with a thermostat function (S3). If the
value at S3 reaches the switch-on temperature for the backup heating, the relay
is switched on. If the value exceeds the switch-off temperature for the backup
heating, the relay is switched off again.
R1
S2
S1
R4
S3
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
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature backup
heating
3 / GND
S4 Free 4 / GND
S5 Free 5 / GND
Relay
R1 Solar pump R1 / N / PE
R2 Free R2 / N / PE
R3 Free R3 / N / PE
R4 Backup heating / Store
loading pump
R4 / N / PE
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