Lamborghini Caloreclima ALHENA C Instrucciones De Uso, Instalación Y Mantenimiento página 240

Indication during operation
Heating
A heating request (generated by the Room
Thermostat or Remote Timer Control) is in-
dicated by activation of the radiator.
The display (detail 12 - fig. 1) shows the ac-
tual heating flow temperature and, during
heating standby time, the message "d2".
DHW (domestic hot water)
A DHW request (generated by drawing hot
water) is indicated by activation of the fau-
cet.
The display (detail 12 - fig. 1) shows the ac-
tual DHW outlet temperature and, during
DHW standby time, the message "d1".
Comfort
A Comfort demand (reinstatement of temperature inside the boiler) is indicated by flashing of the
Comfort symbol. The display (detail 12 - fig. 1) shows the actual temperature of the water in the
boiler.
Fault
In case of a fault (see cap. 3.4 "Troubleshooting") the display shows the fault code (detail 12 -
fig. 1) and during safety pause times the messages "d3" and "d4".
1.3 Connection to the power supply, turning on and off
Boiler not electrically powered
To avoid damage caused by freezing during long idle pe-
B
riods in winter, it is advisable to drain all the water from the
boiler.
Boiler electrically powered
Switch on the power to the boiler.
fig. 4- Switching on / Software version
• During the first 5 seconds the display shows the card software version (fig. 4).
• For the following 20 seconds the display will show FH which identifies the heating system air
venting cycle with the fan running (fig. 5).
• In the next 280 seconds, the venting cycle continues with the fan off (fig. 6).
• Open the gas valve ahead of the boiler
• When the message Fh disappears, the boiler is ready to operate automatically whenever do-
mestic hot water is drawn or in case of a room thermostat request
240 EN
fig. 5- Vent with fan on
cod. 3540000251 - Rev. 00 - 03/2024
ALHENA C
fig. 2
fig. 3
fig. 6- Vent with fan off