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InstallationIndications, functions and optionsMessages Commissioning Operation and function
System 13: Solar system with store loading in layers and backup heating with solid fuel boiler
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 ad-
justed 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 (R4). The priority logic effects prior loading
of the upper zone of the store. With another temperature differential function (S4
heat source/S3 heat sink), backup heating of the store with a solid fuel boiler can
be carried out via another pump (R3).
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store
top / Temperature
store - solid fuel boiler
3 / GND
S4 Temperature solid fuel
boiler
4 / GND
S5 Free 5 / GND
Relay
R1 Solar pump R1 / N / PE
R2 Free R2 / N / PE
R3 Loading pump
Solid fuel boiler
R3 / N / PE
R4 Solar valve R4 / N / PE
R3
R1
S4
S3
S2
S1
R4
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