en
24
Installation
Indications,
functions and options
Messages
Commissioning
Operation and function
System 16: 2-store solar system with valve logic and heat exchange control
The controller compares the temperature at sensor S1 to the temperatures at
sensors S2 and S4. If the measured temperature differences are higher than the
adjusted switch-on temperature differences, the pump (R1) will be activated and
the corresponding store will be loaded up to the adjusted store maximum or set
temperature respectively via the valve (R3). The priority logic effects prior loading
of store 1.
Heat exchange control to an existent store via an additional pump (R2) can be carried
out with another temperature differential function (S3 heat source / S4 heat sink).
Sensors
S1
Temperature collector
1 / GND
S2
Temperature store
base
2 / GND
S3
Temperature heat
exchange source
3 / GND
S4
Temperature store
2 base and heat
exchange sink
4 / GND
S5
Free
5 / GND
Relay
R1
Solar pump
R1 / N / PE
R2
Store loading pump
R2 / N / PE
R3
Solar valve
R3 / N / PE
R4
Free
R4 / N / PE
R2
R1
R3
S4
S3
S2
S1
Durchflussrichtung
im stromlosen Zustand
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
Flow direction when
normally open