Thank you, sir.From your datacard you just have the "booster" arrangement.
So: it will only operate when the engine is running
The bow-tie switch is (supposed to be) "it".
Since it requires the engine (with its belt-driven water pump) to be running for operation, i really don't know if it entails or requires a separate electric circulation pump. (the REST function does)
Here's the owner's manual's single page on it:
View attachment 73043
--dick
I've looked through some of the schematics in hopes I'll build up the confidence to try and hot wire this thing back into action. However, said schematics are a bit scary so far.
Maybe I'll hear back from the PO if he knows anything about my conundrum.