Huawei NetCol8000-E220 User Manual page 217

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Step 5 Remove the six screws from the fan support and fan to separate the fan support
from the fan.
Figure 6-5 Removing the fan support
Step 6 Install a new fan, connect the wiring terminals, and bind the cables using cable
ties.
Step 7 Close maintenance door 1.
Step 8 Turn on the exhaust fan switch and the LCD lights up. Choose Alarms > Query
Act. Alarms and tap Indoor fan 4 communication failure (used as an example)
to display the Details page.
● If two or more fans need to be replaced onsite, replace the first fan and clear
its alarm. After replacing the first fan, power off the smart cooling product.
Then replace the next fan and clear its alarm.
● Ensure that the indoor fan communication failure alarm to be cleared
corresponds to the fan that is being processed.
Step 9 Tap Repair in the lower left corner. The Connect the cable to the
communications port on the fan to be repaired and disconnect the cables
from the communications ports on other faulty fans. message is displayed.
Then tap Yes. The command is triggered successfully and the alarm is cleared.
Step 10 On the home screen, choose Maint > Diagnostic Mode > Enter and speed up the
indoor fan to check that the fan rotational speed is normal. Then exit from the
diagnostic mode.
Step 11 Power on the device. On the LCD home screen, choose Maint > Performance
Maint and clear the indoor fan runtime.
Issue 06 (2020-08-19)
NO TICE
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
208