4.1.15 Tube collector function
If the controller detects an increase in collector temperature
by 2 K compared to the previously stored collector
temperature, the solar pump will be switched-on at
100 % for about 30 seconds in order to detect the fluid
temperature. The current collector temperature will be
saved as a new reference value. If the measured temperature
(new reference value) is exceeded by 2 K, the solar pump
will run for 30 seconds. If the switch-on difference between
the collector and the store is exceeded during the runtime
of the solar pump or the standstill of the system, the
controller will automatically switch to solar loading.
If the collector temperature deacreases by 2 K during
standstill, the switch-on value for the tube collector function
will be recalculated.
O TC:
Tube collector function
Adjustment range:
OFF ... ON
Factory setting: OFF
4.1.14 Recooling function
If the adjusted maximum store temperature (S MX) is
reached, the controller keeps the solar pump running in
order to prevent the collector from being overheated.
The store temperature may increase but only up to 95 °C
(emergency shutdown of the store).
The solar pump is switched on once the collector
temperature is lower than the store temperature. It is
switched off when the store is cooled down to the adjusted
maximum temperature via the collector and the pipework.
OREC:
recooling function option
Adjustment range:
OFF ... ON
Factory setting: OFF
The thermostat function works independently from the
solar operation and can be used for using surplus energy
or for after-heating.
• AH O < AH F
thermostat function for after-heating
• AH O > AH F
thermostat function for using surplus energy
When the 2nd relay output is active, is displayed.
4.1.16 Thermostat function
(Arr = 2)
after-heating use of surplus energy
AH O:
Thermostat-switch-on
tem perature
Adjustment range:
0,0 ... 95,0 °C
Factory setting: 40,0 °C
AH F:
Thermostat-switch-off
tem pe rature
Adjustment range:
0,0 ... 95,0 °C
Factory setting: 45,0 °C
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