Huawei NetCol8000-E220 User Manual page 212

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A306
-01
A306
-02
A307
-01
Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
MAJOR Spray
function
abnormal
MAJOR Spray
function
abnormal
WARNI Spray water
NG pump 1
exceed
runtime
alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
1. The spray pump
inlet is blocked.
2. The spray pump
is air-sealed.
3. The cable to the
spray pump is not
connected properly.
4. The spray pump
is faulty.
5. The cable to the
spray water flow
switch is not
connected properly.
6. The spray water
flow switch is faulty.
7. The float does
not drop because
the spray low float
is faulty.
1. The spray pump
inlet is blocked.
2. The spray pump
is air-sealed.
3. The cable to the
spray pump is not
connected properly.
4. The spray pump
is faulty.
5. The cable to the
spray water flow
switch is not
connected properly.
6. The spray water
flow switch is faulty.
7. The float does
not drop because
the spray low float
is faulty.
The accumulated
runtime the spray
pump exceeds the
alarm threshold.
Solution
1. Clear the blockage
from the spray pump
inlet.
2. Remove the air from
the spray pump.
3. Check the cable
connection to the spray
pump.
4. Replace the spray
pump.
5. Check the cable
connection to the spray
water flow switch.
6. Maintain the spray
water flow switch.
7. Maintain the spray
low float.
1. Clear the blockage
from the spray pump
inlet.
2. Remove the air from
the spray pump.
3. Check the cable
connection to the spray
pump.
4. Replace the spray
pump.
5. Check the cable
connection to the spray
water flow switch.
6. Maintain the spray
water flow switch.
7. Maintain the spray
low float.
1. Replace the pump
and clear the
accumulated runtime.
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