Nibe ACS 45 - Page 23

POWER CONNECTION
Connect the power supply cable to terminal block AA25-
X1 as illustrated.
Tightening torque: 0,5-0,6 Nm.
AA25-X1
2
1
N
L
Externt ProduktNamn
ACS45External
OVERVIEW ACCESSORY BOARD
-X2
1
12 34 56
2 3 4 5 6
-X1
AA7-X2
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
AA5-X2 AA5-X9
AA5-X10
CONNECTION OF SENSORS AND EXTERNAL
ADJUSTMENT
Use cable type LiYY, EKKX or similar.
TEMPERATURE SENSOR, COLLECTOR (BT57)
Connect the temperature sensor to AA5-X2:23-24.
TEMPERATURE SENSOR, SUPPLY LINE
COOLING (BT64)
Connect the temperature sensor to AA5-X2:19-20.
TEMPERATURE SENSOR, SUPPLY LINE
AFTER HEATING DUMP (BT75)
Connect the temperature sensor to AA5-X2:21-22.
TEMPERATURE SENSOR, COOLING/HEATING
(ROOM SENSOR FOR COOLING, BT74
An extra temperature sensor (room sensor for cooling)
can be connected to the heat pump in order to determ-
ine better when it is time to switch between heating
and cooling operation.
To connect BT74 see the respective product's IHB
Use a 2 core cable with a cable area of at least 0,5 mm².
EXTERNAL BLOCKING, PASSIVE COOLING
(OPTIONAL)
A contact (NO) can be connected to AA5-X2:13-14 to
allow blocking of passive cooling operation. When the
contact closes, passive cooling is blocked.
EXTERNAL BLOCKING, ACTIVE COOLING
(OPTIONAL)
A contact (NO) can be connected to AA5-X2:15-16 to
allow blocking of active cooling operation. When the
contact closes, active cooling is blocked.
24 20212223 1516171819 1314
AA5-X2
External
External blocking
B A
A: Passive cooling
B: Active cooling
BT75 BT64BT57
ACS 45
Caution
The relay outputs on the accessory board can
have a max load of 2 A (230 V) in total.
23ACS 45 | GB