FusionModule1000B Air-Cooled IT Solution
Maintenance Guide
4 Routine Maintenance
Issue 02 (2017-01-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
36
Item
Method
Expected
Result
Troubleshooting
humidifier input to
50%, and check
whether water can
be smoothly taken
in.
(Following the
preceding step) Set
the humidifier
input to 0%, and
press the manual
drainage button on
the side of the
electric control box
to check whether
water drainage is
normal. After the
check is complete,
set the manual
drainage button on
the side of the
electric control box
to normal
humidification.
Water drainage
is normal.
1.
Disconnect the water hose, and
hammer it with a rubber mallet
to shake off foreign matters.
2.
Remove the water pump and
clean up foreign matters in it.
3.
If there are too many foreign
matters and they cannot be
cleaned up, replace the water
pump by following instructions
in the user manual delivered
with the water pump.
Start the air
conditioner, choose
Maint
>
Diagnostic
Mode
>
Enter
from the main
screen, and set
Electric heater
to
On
. Check whether
the electric heater
generates heat.
The electric
heater
generates heat.
Replace the faulty electric heater by
following instructions in the air
conditioner user manual.
7.5 kW air
conditioner
Check air filters.
The air filters
are blocked.
Clean dust from the air filters using
a brush or vacuum cleaner.
Check the
drainpipes.
No water
leakage occurs
on connectors.
Tighten the connectors.
Check the
condensate water
pan.
There is no
scale.
Clean the condensate water pan.
Check the high and
low pressures.
The high
pressure is not
higher than 2.7
MPa, and the
low pressure is
not lower than
If the high pressure is abnormal,
check whether the outdoor unit
is power off, whether the fan
speed controller and outdoor fan
are working properly, and
whether the outdoor unit coils
