External circulation pump, ground water pump or hot
water circulation pump connected to the buzzer alarm
relay as illustrated below.
NOTE
Mark up any junction boxes with warnings for
external voltage.
AA3-X7
C NO NC
1 2 3
External
F1145
Circulation pump
Caution
The relay outputs can have a max load of 2 A
(230V ~).
Connecting
accessories
Instructions for connecting accessories are in the install-
ation instructions provided for the respective accessory.
See information at nibe.eu for the list of the accessories
that can be used with F1145.
ACCESSORIES WITH CIRCUIT BOARD AA5
Accessories that contain circuit board AA5 are connected
to the heat pump terminal block AA3-X4: 13-15. Use
cable type LiYY, EKKX or similar.
If several accessories are to be connected, connect the
first accessory card directly to the heat pump terminal
block. Other accessory boards are connected to the first
in series.
Because there can be different connections for accessor-
ies with circuit boards AA5, you should always read the
instructions in the manual for the accessory that you
are going to install.
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 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
ON
1 2 3 4 5 6 7 8
-X9
-X2
24 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
ACCESSORIES WITH CIRCUIT BOARD AA9
Accessories that contain the circuit board AA9 are con-
nected to the heat pump's terminal block X4:9-12 on
the input board AA3. Use cable type LiYY, EKKX or
equivalent.
Because there can be different connections for accessor-
ies with circuit boards AA9, you should always read the
instructions in the manual for the accessory that you
are going to install.
AA3-X4 AA9-X1
F1145
Accessories
NIBE F1145Chapter 5 | Electrical connections30
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