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Overview accessory board
ON
1
2
3
4
5
6
7
8
-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
AA5-X2
AA5-X9
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.
24
20
21
22
23
15
16
17
18
19
13
14
External blocking
External
Unit box
AA5-X2
Passive cooling
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.
24
20
21
22
23
15
16
17
18
19
13
14
External blocking
External
Unit box
AA5-X2
Active cooling.
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
Externt
GND
GND
GND
14 15 16 17 18
X6
External
BT25
Heat pump
F1345Externt
GNDGNDGND1415161718
F1345 without 2.0
L
EK
X6
F1345
Externt
4
5
6
7
External
BT25
-AA3-X6
Heat pump
F1345 with 2.0/F1355
L
EK
AA3:X6
23
HPAC 45 | GB