Electrical Conections Indoor Unit - Ferroli OMNIA H Series Installation, Maintenance And User Manual

Electrical conections indoor unit

CAUTION
BEFORE ANY OPERATION WHICH REQUIRES REMOVING THE COVER, DISCONNECT THE UNIT FROM THE PO-
WER SUPPLY THROUGH THE MAIN SWITCH.
DO NOT TOUCH THE ELECTRICAL COMPONENTS IN ANY CASE WITH THE CLOSED MAIN SWITCH! THERE IS THE
RISK OF ELECTRIC SHOCK WITH RISK OF INJURY OR DEATH!
The appliance must be connected to an effective earthing system, as provided for by the current safety regulations. Have
the effi ciency and suitability of the earthing system checked by professionally qualifi ed personnel, the manufacturer is not
responsible for any damage caused by lack of earthing of the system.
■ Wiring must be carried out in accordance with the wiring diagram supplied with the unit and the instructions given in this paragraph.
■ All wiring and electrical components must be installed by a qualifi ed electrician.
■ Provide a main switch or other disconnection devices in the system in accordance with local laws and regulations.
■ Use a dedicated power line.
■ Install fuses (or circuit breakers) and power cables that match the maximum electrical current of the unit.
■ Install a differential switch according to local laws and regulations. Failure to install a differential switch can result in electric shock
and fi re.
■ Install a differential switch with the following characteristics:
- intervention value equal to 30 mA
- trip time less than 0.1 s
■ Make sure all electrical connections are carried out properly. Use the specifi ed cables and ensure that the terminal connections
and cables are protected from water and other external forces to avoid the risk of fi re.
■ Accommodate the power supply and control cables so that the front panel can be mounted correctly and therefore do not force the
cables themselves to avoid the risk of fi re or electric shock.
■ Do not compress the cables and make sure that they do not come into contact with the pipes and sharp edges. Ensure that no
external pressure is applied to the cables.
1. Opening the front panel
Some components inside the boiler can reach high temperatures that
could cause serious problems burns. Before carrying out any operation,
wait for these components to cool or alternatively wear suitable gloves.
To dismount the front panel of the indoor unit:
- Partially unscrew the screws A (see figure to the side).
- Pull the panel B out and release it from the upper fixings.
2. Make the connections referring to the functional electrical diagram
present in this manual.
3. Proceed in reverse order to reassemble the front panel. Make sure
that it is correctly attached to the upper fixing and completely resting on
the side panels. The head of the screw "A", once tightened, must not be
underneath the lower bending stop (see figure at the side).
20
INSTALLATION
A
OK
A
A
fi g. 1
B
NO