Vaillant VUW 246/5-3 (H-GB), Installation And Maintenance Instructions Manual

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0020244995_04 ecoTEC pro Installation and maintenance instructions
49
F Wiring diagrams
F.1 Product connection diagram with integrated hot water generation
X18
X51
X20
X1
24V
230V~
24V
230V~
X41
6
5
4
3
2
1
X22
12
4
X2
13
11
14
2
6
3
3
1
4
2
1
3
L
N
8
17
7
18
6
4
3
1
M
16
4
3
17
5
7
8
5
4
2
1
Masse
PWM
Hallsignal
+24V
15
2
13
12
Burner Of
f
B
US
R
T
24V
X106
2
4
X30
X40 X51 X35
X31
X22
X90
2 1
T2
Fuse
X12
X2
X18
CH P
ump
B.of
f
RT
BUS
X106
X20
X1
X41
X51
L
RT
*
N
2
1
8
16
12
13
14
11
10
9
6
15
4
5
7
17
3
1 Main PCB
2 Operator control panel PCB
3 Outside temperature sensor, flow temperature
sensor (optional, external), DCF receiver
4 Circulation pump remote control
5 Gas valve
6 Return temperature sensor
7 Flow temperature sensor
8 Fan
09 Contact thermostat/burner off
10 24 V DC room thermostat
11 Bus connection (digital room thermostat/controller)
12 Diverter valve
13 Water pressure sensor
14 Impeller sensor
15 Warm start sensor
16 Internal pump
17 Ignition electrode
* Depending on product type