Nibe HPAC 40 Installer Manual page 25

24 23 22 21 20 19 18 17 16
-X8
-X2
-X4
1
2
3
4
5
6
7
8
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 HPAC 40.
Connection of sensors and external blocking
Use cable type LiYY, EKKX or similar.
External blocking
A contact (NO) can be connected to AA5-X2:23-24 to
block cooling operation. When the contact closes, cooling
operation is blocked.
24 23 22 21 20 19
-X9
9
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
8
7
6
5
4
3
2
1
-X10
-X1
N
L
PE
PE
18 17 16 15 14
External flow temperature sensor (BT25)
Connect the flow temperature sensor to AA3-X6:5-6 on
the input card in the heat pump.
If an external heat source or buffer vessel (UKV) is to be
used, the external flow temperature sensor (BT25) must
be installed according to the outline diagram.
The sensor has controlling functions for cooling and
heating.
NOTE
The sensor has controlling functions for cooling
and heating.
F1245
F1145
Caution
The relay outputs on the accessory card can have
a max load of 2 A (230 V) in total.
1
2
3
4
5
BT25
BT25
6
7
8
9
AA3-X6
1 2 3 4 5 6 7 8 9
BT25
GB
25