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ELECTRICAL CONNECTION
NOTE
Read section "Common electrical connection" for
instructions regarding electrical connection.
CONNECTION OF SENSORS AND EXTERNAL
BLOCKING
External supply temperature sensor
(EB100-BT25)
To connect the external supply temperature sensor (BT25),
see the relevant product’s Installer Manual.
External return line sensor (EB100-BT71)
To connect the external return line sensor (BT71), see the
relevant product’s Installer Manual.
External blocking (optional)
A contact (NO) can be connected to AA5-X2:23-24 to allow
the function to be blocked. When the contact closes, the
function is blocked.
24 23 22 21 20 19 18 17 16 15 14 13
AA25
External
External blocking
AA5-X2
Caution
The relay outputs on the accessory board can have
a max load of 2 A (230 V) in total.
CONNECTING HEATING MEDIUM PUMP
(EB1-GP10)
Connect the external heating medium pump (GP10) to AA5-
X9:8 (230 V), AA5-X9:7 (N) and X1:3 (PE).
1
2
3
4
5
6
7
8
9
AA5-X9
2
1
1
M
AA25-X1
External
AA25
GP10
CONNECTION OF RELAYS
Connecting additional step
Connect step 1 to AA5-X9:1 and 2.
Connect step 2 to AA5-X9:3 and 4.
Connect step 3 to AA5-X9:5 and 6.
AA5-X9
Externt
Produktnamn
Steg 1
Steg 2
Steg 3
A2
A1
A2
A1
A2
A1
1
2
3
4
5
6
7
AA5-X9
AXC 40
External
Step 1
Step 3
Step 2
Connection of 0-10 V control of additional heat
step
Connect a 2-core cable to AA5-X2:5 (0-10 V) and AA5-X2:6
(GND).
AA5-X2
0-10V
GND
7 6 5 4
AA25
External
0 V = 0 steps and 10 V = max. number of set steps.
DIP SWITCH
The DIP switch (S2) on the accessory board (AA5) must be
set as follows.
ON
1
2
3
4
5
6
7
8
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AXC 40 F-series | EN
F