Huawei NetCol8000-E220 User Manual page 211

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A304
-01
A305
-01
Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
MAJOR Spray drain
abnormal
MAJOR Spray water
supply
abnormal
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
1. The spray
drainpipe is dirty or
blocked.
2. The cable to the
spray drain valve is
not connected
properly.
3. The spray drain
valve is faulty.
4. The float does
not drop because
the spray low float
is faulty.
5. The cable to the
spray low float is
not connected
properly.
1. The spray water
supply is
insufficient.
2. The float does
not float because
the spray low float
is faulty.
3. The cable to the
spray low float is
not connected
properly.
4. The cable to the
spray water supply
solenoid valve is not
connected properly.
5. The spray water
supply solenoid
valve is faulty.
Solution
1. Clear the spray
drainpipe.
2. Check the cable
connection to the spray
drain valve.
3. Replace the spray
drain valve.
4. Maintain the spray
low float.
5. Check the cable
connection to the spray
low float.
1. Check the spray
water supply.
2. Maintain the spray
low float.
3. Check the cable
connection to the spray
low float.
4. Check the cable
connection to the spray
water supply solenoid
valve.
5. Replace the spray
water supply solenoid
valve.
202