Viessmann Wiring
The wiring in an appliance connects the PCB to the numerous sensors, switches and thermostats. These wiring harnesses allow the pcb to enact safety protocols and control the heating appliance.
Viessmann 7826386 Cable Harness X8/X9/Ionisation - WB2B Combi/WB2B System
Part No: 2320782 / MPN: 7826386