
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 in-
stalling DEW 41.
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, 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 this Installer
handbook.
Installation of unit box (WP5-AA25)
Install the panel with the unit box (AA25) at the bottom
of VPB 200 using the enclosed screws.
LEK
Connecting communication
This accessory contains an accessory board (AA5) that
must be connected directly to the heat pump on the in-
put board (terminal block AA3-X4).
If several accessories are to be connected or are already
installed, the following instructions must be followed.
The first accessory board must be connected directly to
the heat pump's terminal block AA3-X4. The following
boards must be connected in series to the previous
board.
The communication cable (W102, length 3,5 metres) is
factory fitted and connected according to the table be-
low.
Another access-
ory board (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
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
EB100
AA3-X4
F730
Connecting the supply
The unit box (AA25) is supplied with supply cable with
plug (W101, length 3,0 meters) installed from the factory.
13
DEW 41 | GB
Содержание DEW 41
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