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Installation Indications, functions and options MessagesCommissioningOperation and function
System 8: Solar system with 1 store and backup heating with solid fuel boiler
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.
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).
R3
R1
S4
S3
S2
S1
Te mp. Sensor
Pt1000
L
R3
R2
R1
GND
S1
S2
S3
S4
S5
VBus
PWM 1
PWM 2
N
R4
V40
VBus
GND
L'
VFS
RPS
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store top 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 Free R4 / N / PE
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