Swann grease money doesnt work on fire suppression system

after tested with a pair of hellbats 2x(18-5dmg per 2sec) cant kill a flame turret, while adding one more results in losing that turret, we can know the fire suppression system is about 15heal per second (same as before) and is not doubled.

Does it fully repair the structure?

of course no, it behaves just like in normal coop.