Electric Control System - Huawei NetCol8000-A Series User Manual

NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
1.
2.

7.1.8 Electric Control System

Table 7-7 Maintenance items for the electrical control system
No.
1
2
3
4
5
6
Issue 12 (2020-10-28)
Check that the thermal insulator on the refrigerant pipe is not damaged.
Check that the refrigerant pipe support is intact and securely installed.
Operations
Check and secure all circuit cables, and
ensure that all wiring terminals are
securely tightened.
Ensure that each plug has proper contact.
Check that each input and output
connector between the main control
board and the display panel has proper
contact, as well as the connection
between the main control board and the
temperature and humidity sensor.
Check that the main control board is
properly connected to each contactor,
electric heater temperature switch, dry
heating protection temperature switch of
the infrared humidifier water pan, filter
clogging switch, and fan airflow loss
switch.
Use a brush or compressed dry air to
clean various electric components, control
components, the main control board, and
the surge protection and voltage test
board.
Check that the main control board,
display panel, temperature and humidity
sensor, surge protection and voltage test
board, and power cables are free from
aging on the surface.
Copyright © Huawei Technologies Co., Ltd.
7 System Operation and Maintenance
Troublesho
oting
Secure the
cables and
terminals.
Connect the
plug again.
If the fault
is not
rectified,
replace the
plug.
Connect the
cables
again.
Connect the
cables
again.
N/A
Replace the
component
s or cables.
Remarks
Perform the
operations
with the
power off.
Perform the
operations
with the
power off.
Perform the
operations
with the
power off.
Perform the
operations
with the
power off.
Perform the
operations
with the
power off.
Perform the
operations
with the
power off.
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