I would like a sanity-check on my wiring before I start connecting everything and doing something stupid. Am I missing anything? Is anything connected wrong? Whatever you might find, let me know!
Besides that I have a couple of practical questions:
Does anything exist that allows me to bypass the Victron safely, like a dual pole relay or a circuit breaker or something like that? The idea is to be able to wire everything up, but not yet turn on the Victron before a professional has come to check everything out.
The documentation does not seem to mention how much current is allowed to pass through the AC-out-2 connection. Since it allows only 2 Nm torque max, I’m going on a limb and assuming it won’t be that much? My initial idea was to wire the whole house through AC-out-2 and only have my server/wifi on the AC-out-1 as backup power, but I’m not sure if that is a good idea?
In principle, that schematic is OK. If it is acceptable according to your local code is another question.
I don’t know about the current clamp for the power assist as I’ve never used that function.
Assuming you want to run an ESS, you also need a GX device, and probably a smart meter on the grid side, as the internal measurements of the multi are not very accurate.
For bypass, look for 1-0-2 switches, that basically have two inputs (with L and N) and one output. Grid goes to input 1, the multi’s AC-out (after the breaker) to input 2, and your house on the output.
And I assume “auxiliary output” in the datasheet refers to AC-out 2, so: 32A.
Hmm, this is new to me. I have read a lot of the quick-start guides and information in order to piece together how I needed to connect and configure everything, but I don’t recall the requirement for GX for ESS crossing my path.
So, in order to be able to store PV energy into batteries, I need a GX? What does the GX do? This is totally new information for me.
Honestly I’m a bit confused now because I thought I could already charge my batteries using the Multiplus-II? What am I missing?
A GX gives an overview of what is happening in the system. With the ESS it allows charge and discharge if you have cheap and expensive tarriffs among other advantages.
If you are using it like a UPS then it is not necessary.
