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200SE-2S - 300SE-2S
°C
tu
CMIN
1
2
PC %
Live Operating description
The sun's irradiation heat the transfer fluid in the collector. To trigger the circulation pump, a minimum temperature of
1
30°C is necessary in the collectors (CMIN) as is a temperature difference of 6 K between the temperature of the collectors
and the DHW tank.
In the automatic calibration phase (setting parameter tu, factory setting 3 minutes), the solar pump (relay 1) operates on
2
full (100%) in order to stabilise the temperature in the solar circuit.
Subsequently, the rate at which the solar pump operates is calculated dynamically to maintain a reference temperature
3
difference (parameter DT, factory setting 20 K) between the collectors and the DHW tank.
The system loads the DHW tank according to the heat available in the collectors and stops when the set point temperature
4
of the DHW tank is reached (setting parameter SX, factory setting 60).
26/04/2016 - 7607575-05
3.4.1.
CMAX
DT
SX
3
4
TC
TR
DT
SX
PC %
CMIN
CMAX
tu
°C
t
¼See chapter: "Description of the installer parameters", page
51.
General principle
TC
TR
5
6
Temperature of the solar collectors
Temperature of the lower part of the tank
Reference temperature difference
Set temperature of the solar calorifier
Solar circulation pump mode
Minimum collector temperature triggering the pump
Maximum temperature of the solar collector
Self-calibration time
Temperature
Time
3. Technical description
7
8
t
M002751-C
15
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