Huawei FusionCol8000-C210 User Manual page 126

FusionCol8000-C210 In-room Chilled Water Smart
Cooling Product
User Manual (2022, Netherland GS)
Symptom
Northbound
communication is
abnormal.
The T/H sensor
cannot detect the
humidity and
temperature.
Condensate water
exists on the
panel surface.
The temperature
control function
of the equipment
does not work
properly.
Issue 01 (2022-12-30)
Possible Causes
The northbound
communications cable is
incorrectly connected.
Parameter settings on
the controller are
incorrect.
The T/H sensor is faulty.
The communications
cable to the T/H module
is incorrectly connected.
The ambient humidity is
too high.
The temperature
setpoint is low.
The valve plug of the
chilled water valve is
reversely installed.
The chilled water valve
is stuck and cannot be
adjusted.
The temperature and
humidity setpoints are
inappropriate.
An alarm is generated,
indicating that the
smart cooling product
shuts down due to
water overflow or no
cooling capacity output.
The actuator is faulty or
the cable connection is
incorrect.
Copyright © Huawei Digital Power Technologies Co., Ltd.
9 Troubleshooting
Troubleshooting
Check that the northbound
communications cable is
connected to the northbound
COM port on the main control
module.
Check that the T/H sensor is
enabled on the controller.
If the T/H sensor still cannot
detect the temperature and
humidity after the sensor is
enabled, replace the sensor in
time.
Check whether a northbound
communications cable is
incorrectly connected to the T/H
sensor RS485/12V port on the
front panel of the main control
module.
Enhance the air tightness of the
equipment room.
Adjust the temperature and
humidity setpoints.
Check that the chilled water
valve plug is correctly installed.
Replace the chilled water valve.
Adjust the temperature and
humidity setpoints.
Check the alarm causes and
clear the alarms manually after
rectifying the faults.
Replace the actuator or
reconnect the cable.
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