CONNECTING EXTERNAL HEATING MEDIUM
PUMP (AA35-GP10)
To connect the external heating medium pump (GP10,
see the relevant product’s Installer Manual.
CONNECTION OF THE SHUNT VALVE
MOTOR (EP21-QN25)
Connect the shunt motor (QN25) to AA5-X9:6 (230V,
open), AA5-X9:5 (N) and AA5-X9:4 (230V, close).
1
2
3
4
5
6
7
8
9
AA25
External
AA5-X9
QN25
Open
SH +
N
SH -
Close
Connection of 0-10 V control of shunt motor
(EP21-QN25)
Connect a 2-core cable to AA5-X2:7 (0-10 V) and AA5-
X2:8 (GND).
AA5-X2
0-10V
GND
9 8 7 6
AA25
External
At 0 V the shunt is closed and at 10 V the shunt is open.
DIP SWITCH
Connections in the control module are used to enable
connection and control of the climate system 2. One or
more additional climate systems require one AXC 30
each. The DIP switch (S2) on the accessory board (AA5)
must be set as follows, with each climate system having
a unique setting.
Climate system
5
4
3
2
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
8
7
6
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
19
AXC 30 S-series | GB
S
