Quattro 8000 parallel single phase - compatibility numbers?

DIY
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1

I have x2 Quattro 8000 which I would like to run in parallel on single phase 230 volt.
There is no compatibility number on the sticker but the motherboard PC has similar numbers on both units start with same same 4 numbers 2655 with different suffixs 499 VFD & 08 VFD.
Is it ok to combine there 2 inverters to run single phase 230 volt can anyone confirm.
Photo attached of both PC chips numbers
Thx in advance.
Steve Cyprus

PXL20260424141116241
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PXL20260424140754587
PXL202604241407545871920×1080 736 KB

2

What are the ages of the units? The first 4 numbers are the manufacture year and week.

3

PXL20260424121711500
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PXL20260424121452620
PXL202604241214526201920×3413 846 KB

PXL20260424121711500
PXL202604241217115001920×3413 945 KB

Hi Nick, 1 unit is brand new May 2026. The other unit is 2nd hand but I believe approx 2023. Sticker photo attached if they mean anything.
Thanks for prompt reply - I have run off grid since 2014 and am cautious about running inverter in parallel seems like a recipe for a big bang thanks Steve

4

Then it is old stock as its made in 2024. The other 2022.
Almost 2 years between them.
That nay cause issues in symmetry. Use the newest as master and hope for the best.