Velleman VMB1TCW - Manual (Page 74)

 When no sensor program is available, but there is a zone program, a ‘
z ‘ will appear on the display behind the
mode symbol.

When no sensor or zone program is available, but there is an ‘All rooms’ program, an ‘ A ‘ will appear on the display
behind the mode symbol.
Location

↑
↓ Menu
→
Mode
←
Living room
z Mo 14:23 23
Location

↑
↓ Menu
→
Mode
←
Living room
A Mo 14:23 23