Appendix - Vaillant VWZ MEH 61 Installation Instructions And Instructions For Use

APPENDIX

10 Appendix
1
2
3 5 6
4
1 2
EVU
Key
1 Temperature sensor
2 Pressure sensor
3 Pressure sensor wiring harness
4 Temperature sensor wiring harness
5 EVU contact
6 Multifunction input
7 DCF receiver with external temperature sensor
8 Cylinder sensor
9 Flow sensor
10 VRC 470 controller
11 Resistance heater box
12 Resistance heater relay control wiring harness (*)
34
7 8 9 10
1 2 DCF AF 1 2 1 2 -
ME DCF/AF SP1 VF1 BUS
19 20
N L1 L2
11
400V~
12 13
+ 2 1 N 2 1 N
ZH UV1
X51
21
13 Three-way valve wiring harness (*)
14 Three-way valve
15 Multifunction output 2
16 Multifunction output 1
17 Mains connection (alternative)
18 Mains connection
19 Main circuit board
20 Card interface wiring harness
21 Interface card 1
(*) delivered pre-cabled
02 01
N 1 2
L3
14
15 16 17 18
L N L N L N
MA2 MA1 230V~
0020166663_01 - 07/13 - Vaillant
L N
230V~