Replacing The Driver - Huawei NetCol8000-E220 User Manual

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Step 10 Vacuumize the system and precharge refrigerant.
Step 11 Check that the phase sequences are correct before starting the system. Then
choose Maint > Diagnostic Mode > Enter to check the system pressure and
temperature and ensure the refrigerant is charged with an optimal system status.
Ensure that the system is running normally without alarms.
Step 12 Close the no.2nd maintenance door.
Step 13 Power on the device. On the LCD home screen, choose Maint > Performance
Maint and clear the compressor runtime.
----End

6.5.5 Replacing the Driver

Prerequisites
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Context
Before checking and maintaining the device, ensure that the primary power supply
to the device is disconnected and the drive has been placed without primary
power supply for 10 minutes. Otherwise, electric shocks may occur.
Procedure
Step 1 On the controller home screen, tap Shutdown, and turn off the device switch in
the PDC.
Exercise caution because the device is still energized after it is shut down on the
controller home screen.
Step 2 Open the no.2nd maintenance door and enter the device.
Step 3 Remove all cables from the driver and cut the cable ties using diagonal pliers.
Step 4 Remove cables.
Step 5 Remove the four screws on the driver using a Phillips screwdriver, and pull out the
driver.
Issue 06 (2020-08-19)
The driver needs to be replaced.
A spare driver of the same model is available and functional.
Tools: Phillips screwdriver, diagonal pliers, cable tie.
NO TICE
NO TICE
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