Atlantic 024124, Installation And Commissioning Instructions

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Electrical connections
• Before any maintenance operation, ensure that
the general power supply is switched off.
• Specifications of electricity supply
The electrical installation must be carried out in
accordance with current regulations.
Electrical connections will only be made once all other
installation operations (fastening, assembly, etc.) have
been completed.
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Warning!
The contract signed with the energy provider must
be sufficient not only to cover the heat pump's power
requirements but also the combined sum of all the
appliances likely to be operating at the same time. If the
power is too low, check the power rating stated in your
contract with your energy provider.
Never use a power socket for the power supply.
The heat pump must be supplied directly with power
(without external switch) by special protected leads
from the electric panel via dedicated bipolar circuit
breakers, C curve for the outdoor unit, C curve for
the electrical heating and domestic water backups
(see tables page 37 ).
The electrical installation must be fitted with a 30mA RCD.
This appliance is designed to operate using a nominal
voltage of 230 V +/- 10%, 50 Hz.
• General remarks on electrical connections
It is essential to maintain neutral-phase polarity when
making electrical connections.
Rigid wires are preferable for fixed installations,
particularly in a building.
Tighten the cables using the cable glands to prevent the
feed wires from being accidentally disconnected.
The earth connection and its continuity must be ensured.
• Connecting to screw terminals
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The use of ring, spade or blade terminals or
caps is prohibited.
-Always select wire that complies with current
standards.
-Bare the end of the wire to around 25 mm.
-With round end pliers, form a loop with a diameter
which matches the tightening screws on the terminal.
- Tighten the terminal screw firmly onto the loop created.
Insufficient tightening can cause overheating, leading
to breakdown or even fire.
Rigid wire
Loop
25 mm
Spade
or blade
terminal
on flexible
wire
is prohibited
Screw and special
washer
Terminal
• Connecting to controller boards
-Remove the corresponding connector and make the
connection.
Pre-cabled bundle connector and/or screw connector
• Connecting to spring terminals
-Bare the end of the wire to around 10 mm.
-Push the spring with a screwdriver so that the wire
enters the cage.
-Slide the wire into the opening provided for this
purpose.
-Remove the screwdriver and then check that the wire
stays gripped by the cage by pulling on it.
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Installation and Operating Manual "1873- EN" - 3 -
Alféa Extensa Duo A.I. Heat Pump