Actually the 240v inverter part # is NL3Z-14G649-C which is alot cheaper and doesn't need a core return.
https://www.varsityfordparts.com/oem-parts/ford-hybrid-voltage-converter-nl3z14g649c $876.30
you can see the diagram here. https://parts.nplincoln.com/p/119659594/NL3Z-14G649-C.html
Lightning is different. You install it under the bed near the spare tires. You don't remove the 2.4kw system you are adding 7.2kw to it.
We just need someone with the 7.2kw pro power to remove the bed to see how the connation goes and how they Tee off the hoses.
On our it is alot easier. We will not be replacing 2.4kw but addung 7.2kw. Modifying the computer is the easy part and zsc100 can help on that. We have modify the computer to do alot of stuff already. Was hoping to find someone with a pro power to do a video and pictures that will help alot...
This is what i got from OEMFORDPARTSDIRECT.com
NL3Z-14B227-B - 7-10 days to our facility
NL3Z-19A464-C IS NOW NL3Z-19A464-D 7-10 days out
NL3Z-14G649-C - 7-10 days out.
W505435S442
W716498S450
W721627S450L
W719952S450L
Do you think this is the inverter.
NL3Z-14G649-C)
Factory OEM Ford Hybrid Voltage Converter - NL3Z-14G649-C Part Number - OEM Ford Fitment - 2022-2023 Ford F-150 Lightning
It said it is module 3 and for the lightning.