Vaillant 837 E - Wiring Diagrams

Supplied By www.heating spares.co Tel. 0161 620 6677
11 Diagrams
Instructions for Installation and Servicing turboMAX plus and thermoCOMPACT R150
Wiring diagram: turboMAX plus 824/2 E, 828/2 E, 837 E
Fig. 11.3: Wiring diagram VUW
Switchgear cabinet
U100
X3
T 2 = F1
T 1,25 = F3
X2
X2
X1
24
23
1
12
13
14
15
16
17
18
19
20
21
22
2
3
4
5
6
7
8
9
10
11
4
3
2
1
X2
NTC
NTC Warmstart
earth
Ionisation electrode
NTC flow
NTC return
Lifting magnet
24
23
1
12
13
14
15
16
17
18
19
20
21
22
2
3
4
5
6
7
8
9
10
11
Fan unit
Ignition electrodes
Gas valveDiverter valveAir pressure switch
NTC Warmstart
Ionisation electrode
Pump
NTC return
12
EV1
EV2
34
X8X4 (VUV)
X12
X14 X13
79 L 48N35
X7 Accessories
NTC flow
Aqua sensor
Aqua sensor
Pressure sensor
X20
Coding resistor
(837 E only)