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InstallationIndications, functions and optionsMessages Commissioning Operation and function
System 23: Solar system with east-/west collectors and 2 stores (valve logic)
The controller compares the temperatures at the collector sensors S1 and S5
to the store temperature at sensors S2 and S3. If one of the measured temper-
ature differences is higher than the adjusted switch-on temperature differences,
the corresponding pump (R1 and / or R2) or both pumps will be activated and the
corresponding store will be loaded up to the adjusted maximum temperature via
the valve (R3). The priority logic effects prior loading of store 1.
Sensors
S1
Temperature collector 1
1 / GND
S2 Temperature store 1
base
2 / GND
S3 Free 3 / GND
S4 Temperature store 2
base
4 / GND
S5 Temperature collector 2 5 / GND
Relay
R1 Solar pump collector 1 R1 / N / PE
R2 Solar pump collector 2 R2 / N / PE
R3 Solar valve R3 / N / PE
R4 Free R4 /R4
R3
R2R1
S5
S4
S2
S1
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