Tab_6 (diagram "F")
Led status
Mode of operation
Off
Board in Stand-by (contact CV open)
On
Board on (contact CV closed)
Temperature H
1 Blink
Temperature H
2 Blinks
Motor locked/disconnected or safety grille open
3 Blinks
Water temperature sensor open or short circuited
4 Blinks
At every start-up, the system checks the software version of the power board
5 Blinks
The motor feedback indicates a speed > 1400 rpm
The motor feedback indicates a speed < 100 rpm
6 Blinks
(see locked fan function)
*
The water sensor is optional.
If it is connected, the board will allow operation of the fan only with water
temperature suitable for the selected mode of operation (higher than 30°C in
winter mode and lower than 20°C in summer mode).
If it is not connected, the board shall not carry out any check of water temperature.
**
When the use of the water probe is envisaged, it is NECESSARY to select Winter/
Summer mode by means of the contact E/I.
Open =
Winter
Closed = Summer
O > 20°C in summer mode or
2
O < 30°C in winter mode
2
THIS SIGNAL IS NOT AN ALARM
EN - 15
Bi2 Air AR