Hey,
Some of these settings can be changed in the configuration or with Node Red, but here’s the general rule:
- AC OUT1 is the “Critical load” output and will receive power from AC IN and/or from the battery
- AC OUT2 is the “Noncritical load” output and will only receive power from AC IN
- When the system is connected to shore power (and shore power is within configured limits), relays will connect AC OUT1 and AC OUT2 directly to AC IN
- If there’s no or not enough shore power, AC OUT2 will be disconnected and AC OUT1 will be powered by the available shore power (can be 0) and the battery.
So yes, the recommendation for your use case is to connect your heavy loads to AC OUT2.
You could connect it directly to the feed from shore power (AC IN) but if it’s connected to AC OUT2 you have the advantage that in certain conditions you can choose to power AC OUT2 from the battery as well.
This would require at least some extra software settings.
Passthru mode pretty much means that the internal charger/inverter inside the Multi is switched off and power goes directly from AC IN to AC OUT.
Hope this helps ?
Bart