Nibe PCM 40, Installer Manual, Page: 21 / 52

Electrical connection
NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be car-
ried out in accordance with the stipulations in
force.
F1145/F1155/F1245/F1255 must not be
powered when installing PCM 40/42.
NOTE
If the supply cable is damaged, only NIBE, its
service representative or similar authorised
person may replace it to prevent any danger
and damage.
NOTE
To prevent interference in the event of any
splicing, communication and/or sensor cables
to external connections must not be laid closer
than 20 cm from high voltage cables.
The electrical circuit diagram is at the end of these in-
stallation instructions.
Connecting the supply
PCM 40/42 is factory fitted with power cable and plug
(W101, length 3,0 metres).
Connecting communication
This accessory contains an accessories card (AA5) that
must be connected directly to the heat pump on the
input card (terminal block AA3-X4).
If several accessories are to be connected or are already
installed, the following instructions must be followed.
The first accessory card must be connected directly to
the heat pump's terminal block AA3-X4. The following
cards must be connected in series with the previous
card.
The communication cable (W102, length 2,5 metres)
is factory fitted and connected according to the table
below.
Another access-
ory card (AA5-
X4)
Heat pump
(AA3-X4)
Colour
4 15 White (A)
5 14 Brown (B)
6 13 Green (GND)
1
2
3
4
5
6
7
8
AA5-X4
15
A
B
GND
A
B
GND
A
B
GND
A
B
GND
A
B
GND
14
13
AA3-X4
1
2
3
4
5
6
7
8
AA5-X4
F1245/F1255 F1145/F1155
AA3-X4
Accessory card 1
Accessory card 2
ON
1
2
3
4
5
6
7
8
-X9
-X2
24 20 21 22 23 15 16 17 18 19 10 11 12 13 14 5 6 7 8 9 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
2 3 4
-X8
-X4
-X10
-X1
AA5-X4
ON 1
2
3
4
5
6
7
8
-X9
-X2
24 20 21 22 23 15 16 17 18 19 10 11 12 13 14 5 6 7 8 9 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
2 3 4
-X8
-X4
-X10
-X1
AA5-X4
AA3-X4
EB100
21
GB