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Installation Indications, functions and options MessagesCommissioningOperation and function
System 12: Solar system with store loading in layers and thermostatic backup heating
The controller compares the temperature at sensor S1 to the temperatures at
sensors S2 and S3. If the measured temperature differences are higher than the
adjusted switch-on temperature differences, the pump (R1) will be activated and
the corresponding store zone will be loaded up to the adjusted store maximum
or set temperature respectively via the valve (R3). The priority logic effects prior
loading of the upper zone of the store.
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.
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store
return preheating /
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 Solar valve R3 / N / PE
R4 Backup heating / Store
loading pump
R4 / N / PE
R4
R3
R1
S2
S3
S1
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