Nice and clean cabeling!
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Amazing cooling system! 
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You’re carping… or envious. 
Is it working? Yes. Problem solved. 
Yeah, amazingly everything works great, we are totally off grid at our house, solar been keeping up fine as well. I had a lot of Cerbo issues but the beta version was whacking away at my issues one by one. As far as cooling we use the propped door with slim fan method.
Yeah, I tried. It was DIY and managed to pass code inspection after the 6th inspection
Nice installation 
Can you tell me what the configuration of the Multi 10K is because I thought that from 8K onwards we could no longer put them in parallel
Split phase.
Ok 2x120V
This applies to the Multi 2 and quattro 2 series, not the mult 1 or quattro 1
And the 2 series can be parallel connected if you use the external transfer application set up. It is grid approved now as well.
Summary
Countries list:
This solution has been tested and certified according to the following national grid codes:
Germany – VDE-AR-N 4105:2018:11
Europe – EN50549-1:2019
Belgium – C10/11 ed 2.3
UK – G99 Issue 1 Amd 10
Northern Ireland – G99 Issue 1 Amd 1 (Dec 2023)
Spain – UE2016/631 UNE217002:2020
Denmark – TR3.3.1 Rev 5
Austria – TOR Type A ver 1.3
South Africa – NRS 097-2-1:2024
Poland – PTPiREE Rev 1.2:2021
Please note that for Europe (EN50549), Germany (VDE4105) and South Africa (NRS097) the External Transfer Switch solution must be used in combination with the Ziehl relay UFR1001E. For other grid codes this is not required.
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Thanks @lxonline
you’re right
But for only two Multi II (>=8K), it’s still far too expensive compared to two 5Ks in which the functionality is integrated.
By the way, could you explain to me why VICTRON chose not to integrate it on the Multi II >= 8K?
I agree.
But parallel 8 makes no sense when there is a 15kVa.
I have some speculative theories. (To do with set up an wire balancing with relay synchronization). But don’t know anything official.
(Also i think that the RS series seems more where the development is moving.)
2x 10k 120v/240v Split phase
That’s cool, would be a single line around, please ?
Yes, you’re right, but when you already have an 8K, you have no choice; you have to replace everything.
Regarding your comment about the RS, I don’t really understand, because do they still need Multi or Quattro?
They aren’t discontinuing if that is what you are asking.
What i was saying is the development seems focused on the RS range. (And Venus functions)
Ah ok I misunderstood
Welm I am glad you took the time to ask. 
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