Electrical connection
ON
12345678
-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
$$;
$$;
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.
F1345 must not be powered when installing
AXC 50.
Connection of sensors and external adjust-
ment
Use cable type LiYY, EKKX or similar.
Flow temperature sensor, extra climate system
(BT2)
Connect the flow temperature sensor to AA5-X2:23-24.
Return line sensor, extra climate system (BT3)
Connect the return line sensor to AA5-X2:21-22.
Room temperature sensor, extra climate system
(BT50) (optional)
Connect the room temperature sensor to AA5-X2:19-20.
External adjustment (optional)
A potential free switch can be connected to AA5-
X2:17-18 for external adjustment of the climate system.
$$;
24
20
21
22
23
16
17
18
19
%7
%7
%7
([WHUQDO DGMXVWPHQW
Caution
The relay outputs on the accessory card can have
a max load of 2 A (230 V) in total.
Connection of the circulation pump (GP20)
Connect the circulation pump (GP20) to AA5-X9:8 (230
V), AA5-X9:7 (N) and X1:3 (PE).
1
2
3
4
5
6
7
8
9
L
N
PE
3
2
1
8QLW ER[
([WHUQDO
*3
$$;
;
Connection of the mixing valve motor (QN25)
Connect the mixing valve motor (QN25) to AA5-X9:6
(230 V, open), AA5-X9:5 (N) and AA5-X9:4 (230 V, close).
1
2
3
4
5
6
7
8
9
1
6+
6+
&ORVH
2SHQ
41
$$;
8QLW ER[
([WHUQDO
17
Chapter 5 |
Extra climate system
AXC 50
Summary of Contents for AXC 50
Page 1: ...Installer manual LEK AXC 50 Accessories IHB GB 1222 1 231158...
Page 2: ......
Page 10: ...Electrical circuit diagram AXC 50 Chapter 3 Shunt controlled additional heat 8...
Page 15: ...Electrical circuit diagram 13 Chapter 4 Step controlled additional heat AXC 50...
Page 21: ...Electrical circuit diagram 19 Chapter 5 Extra climate system AXC 50...
Page 26: ...Electrical circuit diagram AXC 50 Chapter 6 Hot water comfort 24...
Page 29: ...Electrical circuit diagram 27 Chapter 7 Groundwater pump AXC 50...
Page 34: ...Electrical circuit diagram AXC 50 Chapter 8 Passive cooling 4 pipe 32...
Page 40: ...Electrical circuit diagram AXC 50 Chapter 9 Passive cooling 2 pipe 38...
Page 46: ...Electrical circuit diagram AXC 50 Chapter 10 Passive active cooling 2 pipe 44...
Page 47: ......
Page 48: ...NIBE AB Sweden Hannabadsv gen 5 Box 14 SE 285 21 Markaryd info nibe se www nibe eu 231158...
