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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.
F1145/F1245 must not be powered when in-
stalling PCM 40/42.
NOTE
If the supply cable is damaged, only NIBE, its
service representative or similar authorised per-
son may replace it to prevent any danger and
damage.
The electrical circuit diagram is at the end of these install-
ation instructions.
Connecting the supply
PCM 40/42 is factory fitted with power cable and plug
(W101, length 3,0 metres).
All manuals and user guides at all-guides.com
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.
Colour
Heat pump
(AA3-X4)
White (A)
15
Brown (B)
14
Green (GND)
13
AA3-X4
A
15
B
14
GND
13
AA5-X4
A
1
B
2
GND
3
A
4
B
5
GND
6
7
8
AA5-X4
A
1
B
2
GND
3
A
4
B
5
GND
6
7
8
GB
Another accesso-
ry card (AA5-X4)
4
5
6
-X9
9
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
8
-X8
-X2
7
6
5
-X4
4
1
3
2
2
3
1
4
-X10
5
6
-X1
7
N
8
L
PE
PE
-X9
9
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
8
-X8
-X2
7
6
5
-X4
4
1
3
2
2
3
1
4
-X10
5
6
-X1
7
N
8
L
PE
PE
19
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