Solar
30
10.2 Solar circuit
Solar ciruit 1 and 2
are in menu Solar.
Solar circuit has two
operating modes
:
•
ON
Charge, as long as the Collector tempe
hysteresis is higher than the temperature of the AC
lower sensor or AC temperature is reached.
•
OFF
No charge
As
limit sensor
choose TPU, TPM, TPO, or DHW
sensor.
Note
The solar thermal system can be switched on/off irrespective of the plant mode.
The operation mode SOLAR can also be changed, if the
OPERATING MODE PLANT
is set to
OFF!
VERY HIGH DOMESTIC HOT WATER storage
temperatures are possible!
We recommend consulting your specialist installer before
changing these settings.
ACC temp Max
If the temperature in the ACC is higher than the ACC temp Max, the solar pump
switches off. The limit sensor measures the temperature in the ACC.
ACC Hysteresis
The solar circuit pump is switched off due to the ACC temp Max is reached. The
temperature must fall under ACC temp Max minus hysteresis, then the solar circuit
pump switches on again. The hysteresis prevents a solar pump cycling (On Off
On Off).
Collector Hyst On
If between the collector sensor and TPU, ACC lower sensor the temperature
difference is greater than the Coll Hyst A, switches the solar pump On.
Collector Hyst Off
If between the collector sensor and TPU, ACC lower sensor the temperature
difference is smaller than the Coll Hyst A, switches the solar pump Off.
Collector smoothing
mode
It only functions on solar circuit one, it can be switched on and off and it ensures an
efficient delivery of energy from the collectors.
Note
This can only be set, when the speed control function is on. Setting in the
code protected parameter.
Collector smoothing
Min Temp
At this temperature the solar pump starts to run at minimum speed.
Collector smoothing
Control range
The pump speed increases within the set range as the collector temperature
increases.
Operating manual Pelletronic Touch
E1389EN 2.0
