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The user is obliged to ensure of the correct use of the boiler in accordance with this manual which is
a condition of acceptance of the warranty. In addition, it is strictly forbidden to intervene in any manner
into the secured parts in the boiler!
Notice:
The setting of output range of the boiler and other parameters must be in accordance with the technical
data. Any overloading and incorrect use of the boiler may cause the devaluation of its components. The
warranty cannot be applied for such damaged components.
♦
General instructions:
Before the electric boiler is put into operation, make sure to check the following:
connection to the heating system
opening of the fitting separating the electric boiler and the system and securing the fitting against
unauthorized handling
check that the system is filled with soft water (or check the pressure) and that no air is present in the
system
electrical connections and protection in accordance with CSN. See chapter “Electric boiler assembly”.
Start-up procedure:
switch on the main circuit breaker (switch) in the supply line, turn on the boiler by pressing and holding
the
(ON) button.
Set the required output temperature of the boiler to the maximum value
check that all the safety thermostats and controls operate properly
The electric boiler is very easy and fast to operate and no special qualifications are required for it.
However,
the boiler shall only be operated by adults who have been familiarized with the boiler function and
operation.
Such instructions shall be provided by the installer when the boiler is connected and put into
operation.
When the display is on, there is control mains voltage in the boiler.
Set the room thermostat (or another external control) to the required temperature.
Press the arrow-up key to display the current heating water temperature. Press the
(ON) button to
turn on the boiler. At the same time, the circulation pump will turn on and remain in operation for the
time given by the parameters set. The heating function is indicated by the LED indicator with the
symbol. When the temperature setpoint is reached, the automatic system will switch off the heating
bodies one by one so as to maintain the heating water temperature setpoint within the limits given by
the parameters.
Initial heating:
maintains the highest possible operating temperature of the medium in the heating
system for 4 hours. During operation, bleed the air from the system carefully so as to get rid of any
remaining air after bleeding in cold condition. When the system has cooled down, refill it with water.
In case of a power cut (or HDO signal interruption depending on the settings), the boiler will be put out
of operation. When power is restored, the electric boiler will resume operation automatically.
Do not place any objects inside the electric boiler or on its casing.
The minimum water pressure on the input to the circulation pump shall be 0.5 bar
Setting the pressure in the expansion vessel
Once the system has been filled with a heat-conductive medium and air has been bled out of the system
properly, take a note of the water pressure in the system shown on the display. Adjust the value of filling
overpressure of the air in the expansion vessel by bleeding the air out until the same value is achieved. Fill the
system with water until the system pressure reaches a value higher by10 kPa. If the filling overpressure of air in
