Nice F470 User Manual page 33

ventilation
Menu
1.2
Setting range: normal and speed 1-4
Default value: normal
The ventilation in the accommodation can be temporarily increased or reduced
here.
When you have selected a new speed a clock starts a count down. When the
time has counted down the ventilation speed returns to the normal setting.
If necessary, the different return times can be changed in menu 1.9.6.
The fan speed is shown in brackets (in percent) after each speed alternative.
TIP
If longer time changes are required use the holiday function or scheduling.
Chapter 3 | F470 – at your service NIBE™ F470 31