The type of room controller is selectable in the Engineer mode and over the Modbus communication.
ThersttierofoperationincludessettingsasFigure3-1shows.Tooperate:
1. Press POWER button ON or OFF to turn on/off the room controller. In ON state, icon ON is activated.
2. At state ON, press any other button to start the User Mode operation. Press FAN SPEED button to toggle over different fan
speeds. Press MODE button to toggle working modes over Cooling/Heating. Press UP or DOWN button to increase/decrease
temperature set-point.
3. If no button is pressed for 10 seconds, it will return to current temperature display with the latest setting.
Item Description
B - Type 4-Pipe Heating or Cooling (Manually Selectable)
C - Type 4-Pipe Heating and Cooling (Auto changeover)
E - Type 2-Pipe Heating or Cooling (Manually Selectable)
Item Description Remarks
1 Current Temperature Display current temperature
2 Temperature Setting Set the temperature set-point
3 Cooling/Heating Select Toggle to change the working
mode over Cooling/Heating
Only applied to models with Cooling/
Heating mode selectable types.
4 Fan Auto/Continuous Toggle to change fan speed over
Auto / Off / Stage I / Stage II / Stage III
Fig. 3-1:
User Mode operation
sequence
ROOM CONTROLLER TYPES
USER MODE OPERATION
OPERATION
Current
Temperature
Temperature
Setting
0.5ºC
Cooling/
Heating
Select **
FAN
AUTO
Continuous
4
3
2
1
* Back to 1 when no
button was pressed for 10s
** For Cool or Heat
selectable Models only
