When do you draw from the Epic Weapon deck instead of the Equipment deck when searching in Rio Z Janeiro?

Question

Accepted Answer

A Search draws from the Equipment deck. Taking an Epic Weapon crate draws from the Epic Weapon deck and needs a crate in the Zone, taken once per crate. Each Survivor can search a room once per turn.

Zombicide: 2nd Edition

When do you draw from the Epic Weapon deck instead of the Equipment deck when searching in Rio Z Janeiro?