Huawei NetCol5000-C Series User Manual page 153

NetCol5000-C(065, 080) In-row Chilled Water Smart
Cooling Product
User Manual
Alarm
ID
A181-01
A182-01
A193-01
Issue 07 (2020-03-16)
Alarm Alarm
Name Severit
y
g
r exceed
runtime
alarm
Humidifie Warnin
r pump g
exceed
runtime
alarm
Water Major
supply
abnormal
alarm
Air-side Major
differentia
l pressure
sensor
fault
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Impact Possible Cause
alarm is runtime of the wet
triggere film of the
d.
humidifier exceeds
the alarm threshold.
An The accumulated
alarm is runtime of the water
triggere pump exceeds the
d. alarm threshold.
1. The water supply
An
is insufficient.
alarm is
triggere 2. The humidifier
d, and float has dropped
the and is jammed.
humidif
3. The humidifier
ier is
float
shut
interconnection
down.
terminals are
abnormal.
4. The water inlet
solenoid valve
cannot open.
5. The cables to the
water inlet
solenoid valve
are loose or
damaged.
1. The differential
An
pressure sensor
alarm is
cable is loose or
triggere
damaged.
d.
2. The pressure
tube of the
differential
pressure sensor
is reversely
connected.
3. The differential
pressure sensor
is faulty.
Solution
the wet film of the
humidifier and clear
the accumulated
runtime.
Maintain or replace
the water pump and
clear the
accumulated
runtime.
1. Verify that water
supply to the
humidifier is
normal.
2. Verify that the
humidifier float
can float and
drop properly.
3. Verify that the
humidifier float
interconnection
terminals are
properly
connected.
4. Verify that water
flows into the
humidifier pan
from the water
inlet pipe of the
humidifier.
5. Verify that
cables to the
water inlet
solenoid valve
are properly
connected.
1. Check the cable
connection to the
differential
pressure sensor.
2. Check the tube
connection to the
differential
pressure sensor.
3. Maintain or
replace the
differential
pressure sensor.
145