I too have an old Gatsby Spa that was running on 110. I am in the process of converting it to 220. I have already hooked up the Red, Black, White and ground wires to the terminal strip. Which jumpers do I have to move to finish the conversion. The schematic shows a 240 VAC Jumper on a 240 VAC Converter Relay, but does not indicate what has to be done.
Thanks,

Eddie

Attached is the schematic, if anyone can look at and can tell me what to change.

Thanks

Im not a spa guy so this is just an opinion. But...
It looks like you remove the jumper for 230vac use.

That looks like its a jumper from the "240v relay" to were your L2 will be.

There might be more to it though. Mine also had a switch that was not noted on the schematics.

Dan