Vaillant aroTHERM plus VWL 75/6 A S2 Series Operating Instructions Manual page 56

15 Customer service............................................... 82
15.1 Customer service................................................. 82
Appendix ............................................................................ 83
A Functional diagram............................................ 83
B Safety devices.................................................... 84
C Wiring diagram................................................... 85
C.1 Wiring diagram, power supply, 1~/230V.............. 85
C.2 Wiring diagram, sensors and actuators ............... 86
D Inspection and maintenance work ................... 87
E Technical data.................................................... 87
Index ................................................................................... 91
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Installation and maintenance instructions 0020297933_07