Vents-us Quietline, User Manual

Page: 11 / 24

11
EN
ON
1 2
Operation mode 3 (two-speed mode)
The fan operates at speed 1 in the initial position. The fan starts operating at speed 2 as the external
switch supplies a control signal to the LT input terminal, for instance, during switching the light on.
After the control signal is off the fan continues operating for the set time as adjusted from 2 to 30
min and then switches to speed 1.
ON
1 2
Operation mode 4 (two-speed mode)
The fan operates at speed 1 in the initial position. The fan switches to speed 2 after elapse of the set
time as adjusted from 1 to 15 hours and runs at the speed 2 from 2 to 30 min, then returns to the
speed 1. The fan starts operating at speed 2 as the external switch supplies a control signal to the
LT input terminal, for instance, during switching the light on. After the control signal is off the fan
continues operating for the set time as adjusted from 2 to 30 min and then switches to speed 1.
ATTENTION!
By default the operation mode 1 is activated.
Another operation mode may be selected during mounting of the fan or during its operation.