Electrical Connection - Nibe ACS 45 Installer Manual

Electrical connection

NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with the stipulations in force.
The heat pump must not be powered when
installing ACS 45.
• To prevent interference, sensor cables to external
connections must not be laid close to high voltage
cables.
• The minimum area of communication and sensor
cables to external connections must be 0,5 mm² up
to 50 m, for example EKKX, LiYY or equivalent.
• ACS 45 must be installed via an isolator switch. The
cable area has to be dimensioned based on the fuse
rating used.
• Mark the relevant electrical cabinet with a warning
about external voltage, in those cases where a com-
ponent in the cabinet has a separate supply.
• ACS 45 restarts after a power failure.
ELECTRICAL CONNECTION VERSIONS F1345
F1345 has different electrical connection versions de-
pending on when the heat pump was manufactured. To
check which electrical connection applies to your F1345,
check the designation "2.0" visible above the right hand
side of the terminal block as illustrated.
The electrical circuit diagram is at the end of this Installer
handbook.
50
CABLE LOCK
Use a suitable tool to release/lock cables in terminal
blocks.
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3
1
1
2
1
4
1
2
3
CONNECTING COMMUNICATION
If several accessories are to be connected, or are already
connected, the following cards must be connected in
series with the previous card.
Use cable type LiYY, EKKX or similar.
This accessory contains an accessory board (AA5) that
has to be connected directly to the heat pump on the
input board (terminal block AA3-X4) in
F1145/F1155/F1245/F1255, on terminal block X6 in
1
2
2
2
4
3
ACS 45 | GB