Nibe ACS 45 - Page 24

CONNECTION OF THE CIRCULATION PUMP,
HEATING DUMP (GP20)
Connect the circulation pump (GP20) to AA5-X9:8 (230
V), AA5-X9:7 (N) and earth (PE).
1
2
3
4
5
6
7
8
9
L
N
PE
ACS 45
External
GP20
AA5-X9
CONNECTION OF REVERSING VALVE
MOTOR (QN12)
Connect the reversing valve motor (QN12) to AA5-X9:2
(operation), AA5-X9:1 (N) and X1:4 (L).
1
2
3
4
3
2
1
4
External
AA5-X9
X1
QN12
Control
L
N
ACS 45
CONNECTION OF THE SHUNT VALVE
MOTOR (QN18)
Connect the shunt motor (QN18) 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
QN18
External
AA5-X9
Open
Close
N
SH -
SH +
ACS 45
CONNECTION OF THE SHUNT VALVE
MOTOR (QN36)
Connect the shunt motor (QN36) to AA7-X2:4 (230 V,
open), AA5-X10:1 (N) and AA7-X2:2 (230 V, close).
1 2 3 4 5 6
1
2
External
AA7-X2
AA5-X10
QN36
Open
Close
N
SH -
SH +
ACS 45
DIP SWITCH
The DIP switch (S2) on the accessory card (AA5) must
be set as follows.
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
-X9
-X2
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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-S2
RELAY OUTPUT FOR COOLING MODE
INDICATION
There is the option to have an external cooling mode
indication through the relay function via a potential-free
variable relay (max. 2 A) on the terminal block X5.
If cooling mode indication is connected to terminal block
X5, it must be selected in menu 7.4.
ACS 45 | GB24