Hey, could you explain in more detail how the chest limits work? I place a chest, assign it a specific network (coal, for example), and request 100-200 items. But after reaching the maximum limit of 200, the manipulators continue to load items into it beyond that limit. Is this a bug, or am I misunderstanding the mechanics?

It's like a requester chest, but instead of requesting (and pushing) into the classic bot network, it pushes into the global storage.
So if you set 100-200, it will take items from the global storage until it reaches 100. But if you put more than 200, it will push the excess to the global storage. It works like a requester chest with "trash unrequested" enabled.