Nibe AXC 50, Installer Manual

Page: 43 / 48

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
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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.
Connecting external blocking
Use cable type LiYY, EKKX or similar.
External blocking, passive cooling (optional)
A contact (NO) can be connected to AA5-X2:23-24 to
block passive cooling operation. When the contact closes,
passive cooling is blocked.
External blocking, active cooling (optional)
A contact (NO) can be connected to AA5-X2:21-22 to
block active cooling operation. When the contact closes,
active cooling is blocked.
24 20 21 22 23 15 16 17 18 19 13 14
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Caution
The relay outputs on the accessory card can have
a max load of 2 A (230 V) in total.
Connecting top clips
NOTE
To connect the three-way valves to the accessory
card, top clips are required (3x 5-pin and 2x 3-
pin).
Connect top clip X21:1 to X1:3 (PE), top clip X22:1 to
AA5-X10:2 (L), top clip X23:1 to AA5-X9:2 (operating),
top clip X24:1 to AA5-X9:3 (N) and top clip X25:1 to
AA5-X9:4 (operation).
1
2
1
2
3
4
5
6
7
8
9
3
2
1
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Connection of three-way valve motor (QN13)
Connect the three way valve motor (QN13) to top clip
X21:2 (PE), top clip X22:2 (L), top clip X23:2 (operation)
and top clip X24:2 (N).
1
2
1
2
3
4
5
6
7
8
9
3
2
1
N
L
PE
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41
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41 Chapter 10 | Passive/active cooling (2-pipe) AXC 50