Should a building get salvage flux if Reclaim is played on it? I think it should. Reclaim is a spell. Salvage is an effect inherent in certain buildings. Different means which have the same effect.

If Reclaim (cost 1 flux) is played on a basic building (cost 7 flux) the turn it is played, you should get 7 flux back right away from the Reclaim and then get an addition 7 flux back the next turn from the salvage. Should be a net flux gain of 6 for the use of 1 spell and removing (NOT sacrificing) 1 building from the game. And Autodraw gives (I think) the building back anyway.
Right now I get no salvage when I play Reclaim. Sample game ID: 61552
If playing Reclaim on a building cancels any salvage left on it, I think text to that effect should be added to the card.

PS... I guess the same comment could apply to Astridian Diplomat and Whisk Away, but I haven't tried it.

You forgot to read salvage description . Last sentence there: each salvage token reduce cost of entity.

I'd read it. Just didn't understand exactly what it meant. Thanks for the clarification.

Seems like it was built into Reclaim to keep it from being too strong with Salvage while what was needed was a fix to Salvage and Sacrifice. Then Reclaim could just be Sacrifice building to get the flux back.