26
Installation
Electrical connection
Electrical diagram - boiler
ON
1 2
X50
X2
X1
ON
1 2
ON
1 2
1
2
ON
1 2
3
ON
1 2
X50
X2
X1
ON
1 2
ON
1 2
1
2
ON
1 2
3
ON
1 2
X50
X2
X1
ON
1 2
ON
1 2
1
2
ON
1 2
3
OCI345
MB
DB
14
1
Auto
0
4
8
12
24
20
16
+
-
ESC
OK
X6b
X10b
X11
X4a
X7b
X30
X50
X8d
X15a
5
4
3
2
1
1 2
1
14
8
1
1
2
3
4
5
6
1
9
5
1
2
1
2
3
4
1
2
3
4
5
-N3
AGU2.550
L N QX23 N QX22 N QX21
H2 M BX21 M BX22 U+
1 2 3 4 5
-N4
AGU2.550
L N QX23 N QX22 N QX21
H2 M BX21 M BX22 U+
1 2 3 4 5
-N5
AGU2.550
L N QX23 N QX22 N QX21
H2 M BX21 M BX22 U+
1 2 3 4 5
+THISION S PLUS
N HZ BW
-Y3
2
1
-T1a/T5
-N2
AVS 37...
1 2 3
P
-T2
-T1
-N1
(Option)
max. 5A
LPB-Bus
(Option)
BX3
GND
Three way valve
(onlyTHISION S PLUS 13, 19 and 24)
For THISION S PLUS 34, 35L,
46 and 54 only available as an accessory
Control unit
Flow sensor
Return sensor
Water pressure
sensor min.
T5 - 13-34kW (accessory)
DHW sensor
T1a - 46-54kW
2. Flow sensor
