Technibel CAW Series Operating Instructions Manual page 12

LEDS' TABLE
LEGEND
LED ON
 =
LED OFF
 =
flashing LED (0,1 second ON, 0,1 second OFF)
 =
flashing LED (2 seconds ON, 2 seconds OFF)
 =
flashing LED (7 seconds ON, 7 seconds OFF)
 =
NORMAL OPERATION
LD1 LD2
STANDBY STANDBY
Red Green
● ●
○ ●
○ ●
● ●
● ○
OTHER COMBINATIONS
DIAGNOSTICS
Error
Damaged air sensor
Damaged coil sensor
Set temperature can not be reached
Wrong operating mode
Communication error (only for SLAVE on SACBUS)
Condensate level alarm
NOTES
• "Damaged sensor" means a situation in which the sensor is disconnected or short-circuited.
• The condensate level alarm is active only in cooling (COOL) and dehumidifying (DRY) mode.
• "Wrong operating mode" indicates that it is selected by remote control an operating mode not permitted by the system
configuration set during installation (for example, you select the heating mode, but the unit is set to "cooling only").
• "Set temperature can not be reached" indicates that:
• the unit is in cooling mode, but the water temperature is above the set temperature for more than 10 minutes, so the
desired temperature can not be reached
or:
• the unit is in heating mode, but the water temperature is lower than the set temperature for more than 10 minutes,
so the desired temperature can not be reached.
• "Communication Error" indicates that the unit is set as SLAVE on SACBUS protocol, but which has lost communication
with the MASTER board for more than 30 seconds.
LD3
TIMER
Blue
○
Unit in heating mode waiting to warm (ICT < 32°C)
Unit in heating mode and thermo-off
○
Unit in heating mode with heat exchanger already hot (ICT > 32°C)
Unit in cooling mode
●
Unit in heating mode with heat exchanger already hot and active timer
Unit in cooling mode and active timer
●
Unit in heating mode, in thermo-off anche active timer
○
Unit off
See DIAGNOSTICS
LED's status
LD1 (Stby) LD2 (Opr)



 
 
○
12
LIGHTS UP CONDITIONS
LD3 (Timer)
○ ○
○

 


The system stops and the condensate
○

Effects
The system stops
pump is activated
GB