Huawei FusionDC1000A - Smart ETH Gateway

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Step 7 Remove the waterproof connector from the spare fan, as shown by (2) in Figure

Removing the fan and guard. Use a torque wrench to replace the hexagonal

waterproof connector delivered with the spare fan. The torque must be 3.75 N·m.

Step 8 Install the new fan in the sequence from Step 6 to Step 2.

Step 9 After re-power on, on the home screen of the indoor unit, choose Maint >

Diagnostic Mode > Enter, and set the outdoor unit speed to 100%. After the

outdoor unit has run for 5 minutes, check that the outdoor fan is running properly

and no alarm is raised.

Step 10 After

conrmation, set the outdoor unit speed to 0% and exit from the diagnostic

mode.

----End

4.2.2.6 Replacing the

Dierential Pressure Switch

Prerequisites

● The

dierential pressure switch needs to be replaced.

● A spare dierential pressure switch of the same model is available and

functional.

● Tool: Phillips screwdriver

Context

The dierential pressure switch can be maintained only from the rear door.

Procedure

Step 1 On the controller home screen, tap Shutdown, and turn o the smart cooling

product switch in the upstream PDC.

NO TICE

Exercise caution because the device is still energized after it is shut down on the

controller home screen.

Step 2 Open the rear door and remove the air lter.

Step 3 Remove the pressure inlet tube, as shown by (1) in Figure 4-22.

FusionDC1000A Prefabricated All-in-One Data

Center

Maintenance Guide (IT Scenario) 4 Parts Replacement

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