Nibe PCS 44 Installer Manual page 59

POWER CONNECTION
Connect the power supply cable to terminal block X1
as illustrated.
Tightening torque: 0,5-0,6 Nm.
PCS 44 External
ProduktNamn Externt
X1
N
1
L
2
CONNECTING SENSORS
Use cable type LiYY, EKKX or similar.
FLOW TEMPERATURE SENSOR, COOLING
(BT64)
Connect the flow temperature sensor to AA5-X2:21-22.
RETURN LINE SENSOR, COOLING (BT65)
Connect the return line sensor to AA5-X2:19-20.
EXTERNAL BLOCKING
A contact (NO) can be connected to AA5-X2:23-24 to
block cooling operation. When the contact closes, cool-
ing operation is blocked.
External blocking
BT64 BT65
External
Unit box
24 23 22 21 20 19 18 17 16
AA5-X2
Caution
The relay outputs on the accessory board can
have a max. load of 2 A (230 V) in total.
PCS 44 | GB
15 14 13
CONNECTION OF THE CIRCULATION PUMP
(GP13)
Connect the circulation pump (GP13) to AA5-X9:2
(230 V), AA5-X9:1 (N) and X1:3 (PE).
Unit box
External
4
3
2
1
AA5-X9
1
2
3
X1
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).
Unit box External
9
8
7
Open
6
N
5
Close
4
3
2
1
AA5-X9
DIP SWITCH
The DIP switch (S2) on the accessory card (AA5) must
be set as follows.
RELAY OUTPUT FOR COOLING MODE
INDICATION
It is possible to have an external indication of the cooling
mode through relay function via a potential-free variable
relay (max 2 A) on the input board (AA3), terminal block
X7.
If cooling mode indication is connected to terminal block
X7, it must be selected in menu 5.4
L
N
PE
GP13
Red
Blue
Black
QN18
59