NRT405F901 manual
Chapter 9
Operating modes
21
Chapter 9 Operating modes
Different operating modes
There are four different operating modes. Switching between these modes is performed
locally. In controllers with communication, the operating mode can also be changed through
the main SCADA system.
Comfort
is shown in the display. A presence detector can be connected to DI in order to choose
between Comfort and Economy. Switching between Comfort/Economy and Off can also be
performed via the occupancy button. Comfort/Economy is selected via the parameter list.
Economy (Standby)
“Standby” is shown in the display. Heating and cooling have freely adjustable setpoints.
Factory settings: heating = 15°C, cooling = 30°C,
Off
The controller neither heats nor cools and the fan is at a standstill, assuming mould
protection has not been selected in which case the fan is still running.
Windows
is shown in the display. The controller is in Off mode, and the fan will stop if mould
protection has not been selected or if extended running for a fan in combination with an
electric heater has been selected. The window contact is connected to DI and must be
configured.
Occupancy control
Parameter 3 decides whether DI is the input for a window contact or a presence detector. A
presence detector can be connected to DI in order to choose between Comfort and Economy
mode.
