Wiring Diagram For The Vrs 620 And Vrc 630 Control - Vaillant ecoVIT exclusiv Installation And Maintenance Instructions Manual

Appendix
G.3

Wiring diagram for the VRS 620 and VRC 630 control

X12A
1
X40B
X22
X30
2
X90
X2
X41
X14
X6
X18
X11
X13
T4
X12
1 "2 in 7" VR 40 multi-functional module
2 Main PCB
3 E.g. external gas valve assembly
4 E.g. fault message
5 E.g. ecoLEVEL condensate pump
6 Flow temperature sensor 1
7 Flow temperature sensor 2
8 Flow temperature sensor 3
36
3
4
5
X40
6
11
VRC 630
5 V / 24 V
230 V~
7 8 9
12 13
15
14
9 Cylinder temperature sensor, flow temperature
sensor (optional, external), DCF receiver (for
VRC 430)
10 Outdoor temperature sensor, DCF receiver
11 VRC 630 PCB
12 Cylinder charging pump
13 Circulation pump
14 Heating pump
Installation and maintenance instructions ecoVIT exclusiv 0020258610_00
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