2EN-SUNGO-SL_BA-0809-1122P300
1. Technical Description
Solar Controller SUNGO SL
Material 100 % recyclable ABS-housing
for wall mounting
Dimensions (LxHxWinmm) 173x138x51
Protection type IP40 according to VDE 0470
Rate of radio interference N according to VDE 0875
Operating voltage 230 Volt AC; 50 Hz;
-10% to +15 %
Diameter of cable max.
for 230 V connections
2.5 mm² unifilar or finely
stranded
Temperature sensor /
Temperature range
Pt1000; 1000 W at 0 °C;
Range: -30 °C to +225 °C
Sensor load
The cable of the sensor must
be installed with no tension.
The sensor must not be loaded
mechanically when the
temperature of the collector is
more than 60 °C.
Test voltage 4 kV 1 min according to VDE
0631
Switching voltage
Output parameters of switches
230 Volt AC
1A / ca. 230 VA
for cos ϕ= 0.7-1.0 for each
output
Internal mains protection Microfuse5x20mm;
2 A/T
Operating temperature
(internal) / storage temperature
0° to +50 °C /
-10° to +65 °C
Weight ca. 360 g
Solar Charging
The solar circuit pump is switched on and off by means of a
temperature difference control. The sensors T1 (collector)
und T2 (tank, bottom) are required as control elements.The
on/off conditions and the temperature limitation can be
variably set in the settings menu. Note: The temperature
limitation always affects sensor T2 (tank, bottom).
Speed Control
The solar circuit pump can be controlled via speed control
(in this case impulse packet control). This means that indi-
vidual sine half-waves in the alternate current are switched
on or off depending on the temperature difference. There-
fore the speed can be altered within a range of 30-100%
which results in longer system run times. The minimum
speed can be custom set.
Sensor T3 (tank, top)
Sensor T3 (tank, top) has different functions. By default it is
the measuring sensor for the top of the tank. In that case it
has no switch function and is not monitored by the diag-
nostics system.
With the return temperature increase function activated it
functions as a hot sensor (source). With the thermostat heat-
ing with additional sensor function activated it functions as
an additional sensor. In both cases this sensor is used in the
hotareaofthetankandaffectsswitchingoutputA2.
If used in this way the sensor function is monitored as nor-
mal by the diagnostics system.
Balance Values
In addition to the actual values of the sensors T1 (collector)
and T2 (tank, bottom) the display also shows balance val-
ues which represent the smallest and biggest temperature
values for each sensor. After reset the actual temperature
value is displayed.
Manual Operation
Allows switching inputs and outputs on or off manually. On
exiting the manual operation menu, the software returns to
automatic operation. The manual operation menu can be
used for a maximum of 8 hours. After that the software auto-
matically switches back to automatic operation and to the
information menu.
Manual Lag Function
In order to check the temperature values in the information
menu even when the outputs are set manually, a time lag
has to be selected in the manual lag function in the manual
operation menu. On exiting the manual operation menu,
this time span passes once and then is set back to zero. In
this mode a blinking symbol for the manual operation is
shown in the information menu.
Collector Cooling
The tank is loaded up to the preset temperature limitation
which affects sensor T2 (tank, bottom). If the preset temper-
ature limitation is exceeded output A1 (solar circuit pump)
switches off. If the temperature of T1 (collector) then rises
above the selectable standard value of 110 °C the solar cir-
cuit pump is switched on in order to cool the collector. It
switches off again when the temperature at the collector
sensor has decreased by 10 K.
This type of intermittent operation of the solar circuit pump
means that the collector is never or only rarely in an idle
state. If the preset tank temperature limitation is exceeded
by 5 K the collector cooling function is suppressed. The sys-
tem shuts down completely.
Storage Tank Cooling
Storage Tank Cooling means that if necessary the tank tem-
perature can be reduced down to a preset lowest switching
off value (setting for vacations).
When the collector cooling function is activated storage
tank cooling will also become active.
In order for storage tank cooling to become active the fol-
lowing 3 conditions must be met:
1. Temperature T2 (tank, bottom) must be higher than or
equal to the preset tank temperature limitation plus 2 K.
2. Temperature T2 (tank, bottom) must be higher than the
preset switching off value for storage tank cooling.
3. Temperature T1 (collector) must be lower than tempera-
ture T2 (tank, bottom) minus 10 K.
In order for storage tank cooling to switch off one of the fol-
lowing 2 conditions must be met:
1. Temperature T2 (tank, bottom) is lower than the switch-
ing off value for storage tank cooling.
2. Temperature T1 (collector) must be higher than tempera-
ture T2 (tank, bottom) minus 2 K.
