Huawei LUNA2000-200KWH-2H1 Smart String ESS User Manual page 173

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Alarm Alarm
ID Name
3847 Fire
Suppres
sion
Module
Pressure
Insuffici
ent
3048 T/H
Control
Mode:
Manual
3849 Air
Exhaust
Malfunc
tion
3850 Combus
tible
Gas
Detectio
n
Malfunc
tion
3851 Exhaust
Fan
Fault
3852 Ambient
Temper
ature
Low
Issue 02 (2023-02-28)
Alarm Possible Cause
Severit
y
Major Cause ID = 1
The gas pressure of the
fire suppression
module is insufficient
for more than three
days.
Minor Cause ID = 1
The temperature and
humidity control mode
is set to manual.
Major Cause ID = 1
There are too many
faulty exhaust fans.
Cause ID = 2
There are too many
faulty TCUs.
Major Cause ID = 1
There are too many
faulty combustible gas
sensors.
Minor Cause ID = 1
Exhaust fan-1 is faulty.
Cause ID = 2
Exhaust fan-2 is faulty.
Major Cause ID = 1
The ambient
temperature in the
battery cabin is too
low.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Suggestion
Check the fire suppression module and
the pressure gauge, and replace the fire
suppression module.
After the commissioning is complete, set
the temperature and humidity control
mode to automatic.
Cause ID = 1
Repair the exhaust fan based on the fault
alarm.
Cause ID = 2
1. Repair the TCU based on the fault
alarm.
2. On the maintenance screen, check
that the TCU is correctly connected.
1. Repair the combustible gas sensor
based on the fault alarm.
2. On the maintenance screen, check
that the combustible gas sensor is
correctly connected.
1. Check whether the cable is loose. If
yes, connect the cable securely. Check
whether the fan is damaged or burnt.
If yes, replace the fan.
2. Check whether the TCU connected to
the exhaust fan works properly.
3. If the fault persists, contact your
technical support.
1. Check whether the air conditioners in
the battery cabin are faulty.
2. Check whether the doors of the
battery cabin are completely closed.
13 Alarm Reference
165