
KERBEROS POWER
CONTROL MODULE.................................................................................................................................................................. 5
USER INTERFACE....................................................................................................................................................................... 4
POWER MODULES..................................................................................................................................................................... 6
EN
CERTIFICATION......................................................................................................................................................................... 8
TECHNICAL PARAMETERS....................................................................................................................................................... 7

KERBEROS POWER
3
EN
Actual versions of manuals you can find on www.solar-kerberos.com/en/downloads
EN

KERBEROS POWER
5
2. CONTROL MODULE
Temperature
of water
Device
status
Setting
button
Button
on/off
Communication
connector
SET mode: When pressing the SET key and holding for more than 3 seconds,
the line titled Temperature blinks, repeated pressing SET increases the set
temperature. After reaching the maximum temperature value and further
pressing SET the cycle jumps again to the minimal temperature. To save the
set temperature, hold down SET for 3 seconds again. After that the actual
temperature in the tank is being displayed .
1. The temperature is displayed and set in five discrete steps.
Display mode: The LED line titled Temperatures displays actual temperature
of water in the tank. The temperature is displayed in discrete values, at
temperatures up to 40°C inclusive 1 LED is lit, at a temperature in the range of
41 to 50 ° C inclusive 2 LEDs are lit, etc.
2. LEDs called Status indicate whether LED Heating, thermostat sensor faults
and temperature fuse are active. If there is a fault on the temperature fuse
sensor or the fuse is activated, the Fuse Err LED is lit. If the thermostat
temperature sensor fails, the LED Temp Err lights up. If an EEPROM error
occurs, General Err LED is on.
3. For turning the heating On / Off use the On / Off button. When the heating
is on, the On / Off button is backlit.
EN

KERBEROS POWER
6
3. POWER MODULES
1. Each power module has its display to provide the user with information
about its current status. When the input voltage is connected, 4 green LEDs
blink, indicating that the module is OK and waiting for communication with
the control board to check if the panels are able to deliver some min. power
(tested at approx. 3W), which lasts for at least 10 to 20 minutes; in case of
insufficient insolation, the modules do not reach the standby mode (1 green
LED flashes). After a successful test of communication with the control
module, the first green LED flashes and indicates that the module is ready to
deliver power to the load. When the module is active and delivers power to
the connected load, it displays the value of the power with the permanent
light of the respective LEDs. E.g. when the power is below 400W, the first
green LED is lit, the power from 400 to 800W illuminates 2 green LEDs, etc.
The module fault is signalled by permanent red LED marked Err.
Actual
output
of module
EN

KERBEROS POWER
7
EN
4. TECHNICAL PARAMETERS
Electric data of one photovoltaic power module*
Electric data - mains electricity
Input voltage
230 V AC 50 Hz
Power consumption
< 5W
Heating elements
Thermal regulator
Setting range
10 - 85°C
Thermal fuse
YES - electronic
Working conditions
Operating temperature
+5 až +40°C
Storage temperature
-10 až +40°C
Operating relative humidity Max 75 % non condensing
Storage relative humidity Max 90 % non condensing
Environmental dustiness
Chemical influence
Non aggressive
Construction parameters
Measurements (height x width x depth)
Weight
Ingress protection
Dust particles volume max 0,75 mg/m³
Input open circuit voltage (limits)
200 - 340 VDC
MPP tracking range
185 - 320 VDC
Maximum output current
9 A
Maximum efficiency
99 %
Typical wiring
8 x 260 Wp**
11,2 kg
IP 20
498 x 210 x 270 mm
WiFi / Ethernet communication module (optional)
Measurement period
The performance of heater / section
Number of heating elements or independent sections
1 - 3 pc
2 - 2,5 kW
The possibility of using a three-phase body with separate sections YES
The possibility of using separate single phase heating elements
YES
The possibility of using a three phase body with a common center
NO
60 sec
History of data recording
365 days
** Different number of PV modules and different module power than recomended are
feasible but maximum input voltage must be strictly kept at any solar irradiation and
* KERBEROS POWER can be equipped with 1, 2 or 3 power modules
Number of power modules
1 - 3 pc