Huawei NetCol5000-A020 User Manual page 90

NetCol5000-A020 Air Cooled In-row Precision Air
Conditioner
User Manual
Alarm Alarm
ID Name
overfreq
Power
a035
underfreq
a036 Power phase
loss
a037 Power phase
reverse
a038 Liquid pipe
temp sensor
fault
a042 Remote
shutdown
a043 Floor water
overflow
Smoke
a044
detected
Issue 01 (2014-06-30)
Alarm
Impact
Severity
is
generated,
and the
system
shuts down.
The alarm
Major
is
generated,
and the
system
shuts down.
Critical The alarm
is
generated,
and the
system
shuts down.
Critical The alarm
is
generated,
and the
system
shuts down.
Major The alarm
is
generated.
Critical The alarm
is
generated,
and the
system
shuts down.
Critical The alarm
is
generated,
and the
system
shuts down.
The alarm
Critical
is
generated,
and the
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5 System Operation and Maintenance
Possible Causes
unstable.
2. The surge protection and
voltage test board is
faulty.
1. The power grid is
unstable.
2. The surge protection and
voltage test board is
faulty.
1. The power grid is
unstable.
2. The surge protection and
voltage test board is
faulty.
1. The power grid is
unstable.
2. The surge protection and
voltage test board is
faulty.
1. The liquid pipe
temperature sensor is
faulty.
2. Cables to the liquid pipe
temperature sensor are
loose or damaged.
1. The remote shutdown
switch has
misoperations.
2. The remote shutdown
switch is faulty, or cables
to the remote shutdown
switch are loose or
damaged.
1. Water exists on the floor.
2. The water sensor is
faulty.
1. Smoke is generated in
the equipment room.
2. Cables to the smoke
sensor are loose or
Solution
2. Replace the surge
protection and voltage
test board.
1. Check the power grid.
2. Replace the surge
protection and voltage
test board.
1. Check the power grid.
2. Replace the surge
protection and voltage
test board.
1. Check the power grid.
2. Replace the surge
protection and voltage
test board.
1. Maintain or replace
the liquid pipe
temperature sensor.
2. Check cables to the
liquid pipe
temperature sensor.
1. Check the status of the
remote dry contact.
2. Check the shutdown
button and cables of
the remote dry contact.
1. Check and clean the
water.
2. Maintain or replace
the water sensor.
1. Exhaust smoke from
the equipment room
and reset the smoke
sensor.
83