When programming, the user is given the chance to change the mode of operation. What are the different modes?
OJ Product Management defines it thusly:
Floor mode = comfort. Warm your feet, make the tile comfortable.
Ambient mode = room heating. That’s why we call it Room mode on our menus. Using the floor to heat the room.
A/F mode = makes room temp comfortable but doesn’t allow floor to heat above a setpoint. We refer to that as Room/Floor Protection.