System 18: Solar system with east-/west collectors and thermostatic afterheating
The controller compares the temperatures at the collector sensors S1 and S5 to
the store temperature at sensor S2. If one of the measured temperature difference
is higher than the adusted switch-on temperature difference, the corresponding
pump (R1 and / or R2) will be switched on, thus loading the store until either the
switch-off temperature difference or the store maximum temperature is reached.
Afterheating (R3 and R4) can be carried out with a thermostat function (S3). If the
value at S3 reaches the switch-on temperature for the afterheating, the relay is
switched on. If the value exceeds the switch-off temperature for the afterheating,
the relay is switched off again.
Hydraulic variant 1
Hydraulic variant 3Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature
afterheating
3 / GND
S4 Free 4 / GND
S5 Temperature collec-
tor 2
5 / GND
S6 Free S6
Relay
R1 Solar pump collector R1 / N / PE
R2
Solar pump collector 2
R2 / N / PE
R3 Store loading pump R3 / N / PE
R4 Afterheating R4 /R4
R3
R2R1
S5
R4
S2
S1
VBus
VBus
S5/V40
S4
S3
GND
S6
S7
Sensors
Relais
S2
S1
N
R3
R2
R1
L
R4
PWM A
0-10 V
PWM B
0-10 V
R4
N N N N
R3 R2 R1 L
1234
56789
10 11
2
33
2
2 2
3
3
2
S3
Netz
To Next Page
Loading...
