iRobot Roomba Professional Series Owner's Manual page 14

Virtual Wall
Lighthouse Mode
In Lighthouse mode, the Virtual Wall Lighthouse helps Roomba navigate
around your home and allows Roomba to clean room-to-room.
Place a Lighthouse in the doorway between two rooms with the iRobot
Roomba logo facing forward. Roomba will clean the room it starts in,
navigate to the next room, and then clean the second room. When Roomba
has completed cleaning,
Home Base.
Home
Base
Start
Roomba
here
TIP: When using a Lighthouse and Max Mode, Roomba Professional will
remain in Room 1 to maximize cleaning effectiveness.
14 iRobot Roomba Professional Series
Lighthouses
®
it will use the Lighthouse to navigate back to the
Place Lighthouse
in the center of
the door frame
Room 1
With two Virtual Wall
Lighthouses in Lighthouse
mode, Roomba will clean
Room 1 for approximately
25 minutes, then clean
Rooms 2 and 3 for 25
minutes each, and then
return to the Home Base.
Lighthouse
Room 2
Room 3
Lighthouse