UniCoElegance/turbo
ISU-485:2020/BO
3.1.3. Requirements for electrical installations
The boiler has been designed as a Class I device and is designed for operation with single-phase alternating current with
rated voltage of 230 V / 50 Hz. The boiler is equipped with a cord with a plug and must be plugged into a grounded socket
according to HD 60364-4-41.
The main socket from which boiler is powered must meet the local requirements.
It is important to check if boiler supply wires are connected to correct phase wires in installation.
In case of incorrect connection of supply wires:
- boiler enters failure mode
- error E01 is shown on the display (see p. 5.9.4)
In that case interchange phase wires “L” and “N” in power socket.
Boiler exits failure mode automatically after detecting correct connection.
If the boiler is permanently connected to the power source, it should be execute by junction box. The junction box must be
equipped with protection degree appropriate for the defined assembly zone. If the boiler is connected through the junction
box, electric system must be equipped with measures which can disconnecting the boiler from the power source.
In order to connect the boiler to the junction box, it is recommended to:
- cut the power cord to a suitable length for connection to the box
- pull off cable insulation
- put the cable-end sleeve with the appropriate diameter
This prepared cables connect according to the following diagram.
Fig 3.1.3.1 Wire colors: L – brown; N – blue; PE – yellow-green
3.2. Preliminary check activities
Before proceeding with the boiler installation:
•
check whether the boiler is factory designed for the type of gas supplied from the gas system. The type of gas which
the boiler is adjusted to is specified on the rating plate on the cover of the boiler;
•
check whether the water system and radiators have been rinsed with water in order to remove rust, fillings scale, sand
and other dusts that could disturb the proper operation of the boiler (for example increase the water flow resistance in
central heating system) or to pollute the heat exchanger,
•
whether the socket has an proper safety contact.
3.3. Mounting the boiler on the wall
Hang the boiler on hooks fastened durably in the wall using a beam placed in upper part of the boiler. The boiler shall be
so located as to permit the eventual repair without any need to dismantling from the installation.
Power wire the device
Wire of electric system
Junctionbox
