Connecting sensors
Use cable type LiYY, EKKX or similar.
Sensor (BT52)
Connect the sensor to AA5-X2:21-22.
Caution
Sensor cable splicing must fulfil IP54.
N
2345678
-X2
24
20
21
22
23
17
18
19
-X8
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Connecting circulation pump charging (GP15)
Connect the circulation pump (GP15) to AA5-X9:6 (230
V), AA5-X9:5 (N) and X1:PE.
-X9
1
N
L
PE
PE
2
3
4
5
6
7
8
9
-X10
-X1
L
N
PE
-AA5
Unit box
External
GP15
Connecting gas boiler control
Connect gas boiler control to AA5-X9:8 and X10.
Prior to connection, remove the contact breaker from
both terminals on X10.
-X9
1
N
L
PE
PE
2
3
4
5
6
7
8
9
-X10
-X1
2
1
-AA5
Unit box
External
Gas boiler
External blocking
A contact (NO) can be connected to AA5-X2:23-24 to
block the accessory. When the contact closes, the access-
ory is blocked.
24
20
21
22
23
17
18
19
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ON
12345678
-X9
-X2
24
20
21
22
23
15
16
17
18
19
10
11
12
13
14
5
6
7
8
9
1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
2
3
4
-X8
-X4
-X10
-X1
15
GB