sauter NRT407, Manual

Page: 34 / 76

34 Part III Configuration NRT407 manual
Activation of the different operating modes
Preset operating mode
The preset operating mode is configured to Occupied by default. On models without display
the preset mode can be changed to Stand-by using DIP switch SW3. OFF (FS): Occupied,
ON: Stand-by. On models with display, this is configured in the parameter menu in the
display, parameter 45.
The operating mode is changed at the following events:
•
When the Occupancy button is pressed (if the controller has an Occupancy button).
•
Activation/deactivation of an occupancy detector on the digital input.
•
Activation/deactivation of presence by CO
2
level (for model with CO
2
detection)
•
Via central control, for example central time control, central booking system etc.
Occupancy button
For models without fan control, the occupancy button push time for Shutdown is 5 s as a
default. It is configurable via NRT tool.
When pressing the occupancy button, the controller is set to forced ventilation. If the button
is pressed again when forced ventilation is active, the controller will switch to the default
running mode which can be configured either to Off, Unoccupied, Standby or Occupied.
When the Occupancy button is held depressed for more than 5 seconds, the controller will
change its operating mode to Shutdown (Off/Unoccupied), regardless of the present
operating mode. Via the display or NRT tool, it is possible to configure which operating
mode (Off or Unoccupied) should be activated upon Shutdown (FS=Unoccupied).
Shutdown If the Occupancy button is pressed for less than 5 seconds when the controller is in its preset
operating mode or in Shutdown, the controller will change to Bypass. If the button is then
depressed for less than 5 seconds, the controller will return to the preset operating mode.
After a configurable period of time in Bypass (FS=2 hours), the controller will return to the
preset operating mode.
For models with fan control, the Occupancy button Shutdown push time is 0 s as a default.
This value is configurable via NRT tool
©
.
Because of the default 0 s setting, switching operating modes by depressing the Occupancy
button functions differently: If the Occupancy button is pressed when the controller is in the
preset operating mode or in Bypass mode, the controller will change to Shutdown. If the
Occupancy button is pressed in Shutdown mode, the controller will switch to Bypass. After a
configurable period of time in Bypass (FS=2 hours), the controller will return to the preset
operating mode.