en
16
Installation
Indications,
functions and options
Messages
Commissioning
Operation 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
Temp. Sensor
Pt1000
L
R3
R2
R1
GND
S1
S2
S3
S4
S5
VBus
PW
M
1
PW
M
2
N
R4
V40
VBus GN
D
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