We have learned that the setup as described and drawn here does not comply with the installation requirements of Victron!
As our MultiPlus was also connected after the BP100 over the BlueSea SafetyHubs on its own fuse. A situation where reverse current flows when on shore power could occur. In the updated manual and product page of the BP it is mentioned explicitly now that no reverse current may be applied to the Victron BP products.
The chance that we might introduce large reverse currents via the MultiPlus over the BP into the battery where small. Never the less I reconfigured the DC load and charge lay-outs now so that only consumers are behind the BP.
As additional items like the hot water boiler were installed this sumer. I needed to expand or finalize the means of automatic or remote switching. Therefore the central power distribution rack required an update. Which, due to the mounting grid utility power distribution rack is pretty straight forward. As that allows me to easily rearrange mounted and ad additional components without screwing or drilling in any of the interior components.
- The Jabsco water pump and Elgena 24V hot water boiler are now switched with a standard 24V automotive relay after being fused appropriately.
- A large common ground busbar connects to the BMV and distributes all (-) returns to the battery bank.
- Additional cable routing for switching or alarm functions are guided to the control pannel.
Preparations for installation of a future Orion DC-DC stabilised charger distributing a constant voltage to critical items like the LED lamps and other delicate electronics in the unit.