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Installation Indications, functions and options MessagesCommissioningOperation and function
System 10: Solar system with 1 store, return preheating and thermostatic 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.
With another temperature differential function (S3 heat source / S4 heat sink)
re-
turn preheating (heating circuit backup) is possible via another valve (R2).
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store
return preheating /
Temperature backup
heating
3 / GND
S4 Temperature heating
return
4 / GND
S5 Free 5 / GND
Relay
R1 Solar pump R1 / N / PE
R2 Valve return
preheating
R2 / N / PE
R3 Free R3 / N / PE
R4 Backup heating / Store
loading pump
R4 / N / PE
S4
R4
R2
R1
S3
S2
S1
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