This isn’t a map per se but it can be downloaded as a map or as a schematic file.
Infinite Healing Machine is like its name, it can heal you infinitely.
You won’t have to restock the dispenser as the dispenser auto refill itself in 20 seconds.
To use the dispenser you only have to pull the lever and splash of potion will rain just like a shower from the dispenser.
So this thing is more like a mod than a map.
Infinite Healing machine is usable in minecraft 1.12 and 1.11 .