en
27
Installation
Indications,
functions and options
Messages
Commissioning
Operation and function
System 19: Solar system with east-/west collectors and thermostatic backup heating
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.
Backup heating (R4) can be carried out with a thermostat function (S3). If the
value at S3 reaches the switch-on temperature for the backup heating, the relay
is switched on. If the value exceeds the switch-off temperature for the backup
heating, the relay is switched off again.
Sensors
S1
Temperature collector 1 1 / GND
S2
Temperature store base
2 / GND
S3
Temperature backup
heating
3 / GND
S4
Free
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
Free
R3 / N / PE
R4
Backup heating / Store
loading pump
R4 / N / PE
R4
R2
R1
S5
S2
S1
S3
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