Victron Cyrix-ct 12/24-120 Battery Combiner

[leesdx1]

Hey Guys: I'm not understanding the wiring diagram for the ground wire. Questions:

Do I actually need to run a ground wire from Domestic (Inverter) to Starter battery?

Do I need to ground my Domestic (Inverter) battery with the 10mm cable when the inverter is already grounded to the frame?

In the attached diagram, I presume the alternator and starter is already grounded from the factory, right?

Thank you

[leesdx1]

Ok, I figured it out. Call Tech Support. Mount Relay closest to Starter battery. Starter pos to relay87 and Inverter pos to relay30 using 10mm2 cable. Inverter battery neg to Starter battery neg, Starter battery neg to relay86 and Optional, Inverter pos to relay85 using AWG10. All pos are fused accordingly.

FYI, The attached diagram on post #1 was from 2013.

Thanks!!