Huawei NetCol5000-A025 User Manual page 223

NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width)
Al
ar
m
ID
a2
8
b
Issue 15 (2020-12-10)
Alarm Ala Impact
Name rm
Sev
erit
y
Comp CRI Generates
high TIC an alarm
dischar AL and shuts
ge down the
temper compressor.
ature
alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
1. The refrigerant
leaks.
2. The condenser
fins are dirty or
blocked.
3. The ambient
temperature
exceeds the
upper threshold.
4. The temperature
displayed by the
exhaust air
temperature
sensor is
different from
the actual
temperature.
5. The input power
of the outdoor
unit has an open
phase, incorrect
phase sequence,
or is unavailable.
6. Cables to the
indoor or
outdoor fan are
not properly
connected.
7. The outdoor fan
or its drive is
faulty.
Solution
1. Identify and repair
the leaking point,
and refill
refrigerant after
maintenance.
2. Clean the
condenser fins.
3. Measure the
ambient
temperature.
4. Calibrate or replace
the temperature
sensor.
5. Check the input
power of the
outdoor unit.
6. Check the cables to
the indoor and
outdoor fans.
7. Maintain or replace
the outdoor fan or
its drive.
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