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8.2 Display Overview
The table below explains all the symbols available on the display:
Display
Meaning
Room Temperature
Time
Actual speed of the AHU fans
Day of the week
1= Monday
2= Tuesday
etc
…
On/Off
This icon is:
1. On - when the unit is in On, Ventilation or Economy state.
2. Off - when the unit is Off.
3. Blinking - when the unit is in Test mode or in off state by Panel Switch.
This icon is On when the AHU is in Auto mode. The actual AHU state and the relative
icon (On/Off, Ventilation or Economy) are based on Time Scheduler settings.
Heating
Cooling
This icon is On when the AHU is in Ventilation mode
This icon is On when the dehumidification control is active
Occupancy mode active
Economy mode active
Blinking when the AHU is in Alarm state
This icon is On when the AHU Summer/Winter changeover is set to Auto or Pursuit
mode (if available) on the main controller (POL638/687).
For more details see
Summer/Winter state.
Two examples of main screen display:
Economy mode, cooling Ventilation mode, heating