Atlantic alfea extensa + - 5 Electrical Connections

Ensure that the general electrical power supply has
been cut off before starting any repair work.
5.1 General
5.1.1 Characteristic of the electrical supply
The electrical installation must be conducted in
accordance with the prevailing regulations.
The electrical connections must only be made when all
the other tting operations have been completed (xing,
assembly, etc.).
" Warning !
The contract concluded with the energy provider must
be sufcient not only to cover the heat pump's power but
also the combined sum of all the appliances likely to be
operating at the same time. When the power is too low,
check with your energy provider the value subscribed to
in your contract.
Never use a socket for the power supply.
The heat pump must be supplied directly (without
external switch) with power by special protected leads
from the electric panel via 2-pole circuit breakers specially
dedicated to the heat pump, Curve C for the outdoor unit,
curve C for the electrical heating and domestic water
back-ups (see tables on page 37).
The electrical installation must necessarily be equipped
with a 30mA differential protection.
This appliance is designed to operate under a nominal
voltage of 230 V +/- 10%, 50 Hz.
5.1.2 General remarks on electrical connections
It is essential to maintain the live-neutral polarity when
making the electrical connections.
Rigid wires are preferable for xed installations,
particularly in a building.
Tighten the cables using the cable glands to prevent the
conductors from disconnecting accidentally.
Connection to Earth and Earth bonding continuity are
essential.
• Connecting to screw terminals
" The use of round terminal or the ends is
prohibited
- Always select a rigid wire that complies with the
prevailing standards.
- Strip away around 25 mm from the end of the wire.
- With round end pliers, form a loop with a diameter
corresponding to the tightening screws on the terminal.
- Tighten the terminal screw rmly onto the loop created.
Unsufcient tightening can cause overheating, leading
to breakdown or even a re.
Rigid wires
Loop
25 mm
Round terminal
on exible wire
is prohibited
Special screw
and
washer
Terminal
block
• Connecting to regulation cards
- Remove the corresponding connector and make the
connection.
• Connecting to spring terminals
- Strip away around 10 mm from the end of the wire.
- 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
is jammed in the cage by pulling on it.
2
1
3
Pre-cabled bundle connector and/or Screw connector
5 Electrical connections
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 36 -