Overview accessory board
24
23
22
21
20
19
18
17
16
-X8
-X2
-X4
1
2
3
4
5
6
7
8
Connection of sensors and external blocking
Use cable type LiYY, EKKX or similar.
External blocking
Passive cooling
A contact (NO) can be connected to AA5-X2:23-24 to
block cooling operation. When the contact closes, cool-
ing operation is blocked.
Passive cooling
External blocking
External
Unit box
24
23
22
21
20
19
AA5-X2
HPAC 45 | GB
AA5-X2
AA5-X9
-X9
9
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
-X10
-X1
N
L
PE
PE
18
17
16
15
14
13
Active cooling.
A contact (NO) can be connected to AA5-X2:21-22 to
block cooling operation. When the contact closes, cool-
ing operation is blocked.
Active cooling.
External blocking
External
Unit box
24
23
22
21
20
AA5-X2
External flow temperature sensor (BT25)
Connect the supply temperature sensor to the heat pump
on the input board on terminal block X6:15 - X6:GND
on F1345 without 2.0 or on terminal block AA3-X6:5-6
on F1345 with 2.0/F1355.
F1345 without 2.0
X6
F1345 with 2.0/F1355
AA3:X6
19
18
17
16
15
14
13
X6
14 15 16 17 18
F1345
Heat pump
Externt
External
BT25
-AA3-X6
4 5 6 7
F1345
Heat pump
Externt
External
BT25
23