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200SE-2S - 300SE-2S
26/04/2016 - 7607575-05
5.5.3.
Description of the installer parameters
n Reference temperature difference - DT
The regulator reads the temperatures measured by sensors TC and
TR and compares the resulting temperature difference with the
switching-on difference which is preset to 6 K. The regulator tries to
achieve a temperature difference of 20 K (factory setting) between
the collector and the tank to produce high temperature hot water as
rapidly as possible.
M000393-B
n Self-calibration phase - tu
When the solar collector reaches the minimum temperature CMIN
and the predefined temperature difference of 6 K with the DHW tank
temperature, the control system triggers the solar circulating pump at
full regime for the period defined by the parameter tu. During this
phase, any air bubbles in the solar collectors or pipes are evacuated
to the solar station thanks to the high circulation speed in the pipes
and eliminated by the air vent.
M000397-B
n Set temperature of the solar calorifier - SX
The set temperature SX is the desired temperature for the solar
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calorifier. The higher the set temperature for the calorifier, the greater
the energy stored. Setting to 60°C is suitable for normal use with daily
draw-offs.
CAUTION
M002799-A
During extended absences, we recommend lowering the
set point temperature in the solar DHW calorifier to 45°C.
When the user is present, the set point must be set to
60°C.
n Maximum collector temperature - CMAX
The maximum collector temperature CMAX helps to protect the
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collector against overheating.
When the DHW tank set point temperature (SX) is reached, the solar
pump stops. As soon as the solar collector reaches the maximum
temperature CMAX, the solar pump runs until the temperature in the
solar collector is again 5 K lower than the maximum collector
temperature CMAX. The DHW tank temperature can increase until it
M002764-A
reaches its maximum temperature of 80°C. If the DHW tank
temperature exceeds 80°C, the system effects an emergency
shutdown.
5. Commissioning
51
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