Lamborghini Caloreclima ALHENA C Instrucciones De Uso, Instalación Y Mantenimiento página 285

ALHENA C
Circulating pump faults
no. flashes Fault
1 Overvoltage protection
2 Undervoltage protection
3 Overcurrent protection
4 Phase loss protection
5 Stall protection
6 Light load protection
7 Overtemperature protection
Overtemperature manage-
8
ment
Possible cause
Supply voltage above 278±10V
for 2 seconds
Supply voltage below 140±5 V
for 2 seconds
Absorbed current greater than
1.5 A
Phase interrupted in motor
Circulating pump speed is under
500 RPM for at least 3 seconds
Insufficient water circulation
Circulating pump overheating
above 130 °C
Circulating pump overheating
above 125 °C
cod. 3540000251 - Rev. 00 - 03/2024
Cure
Automatic reset when voltage
returns below 270±5 V
Automatic reset when voltage
returns above 150±5 V
The circulating pump makes
attempts to restart every 8
seconds.
The circulating pump makes 5
attempts to restart every 8
seconds. If the fault persists after
the last attempt, the circulating
pump stops definitively.
To release it, it is necessary to
turn off the electrical power for
at least 20 seconds.
Operation will be restored when
the circulating pump body tempe-
rature returns below 100 °C
The circulating pump does not
stop but runs at 50% nominal
power.
Normal operation will
resume.when the circulating pump
body temperature returns below
100 °C.
EN 285