NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
5 Operation and Maintenance
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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5.4.12 Replacing a Strong-current Box
Prerequisites
A component inside the electric control box, such as the main control board, circuit
breaker, AC contactor, fuse, or fuse base, needs to be replaced.
A spare electric control box of the same model is available and functional.
Tool: Phillips screwdriver
Procedure
Step 1 On the controller home screen, tap Shutdown, and turn off the air conditioner switch in the
PDC. Check whether the port is energized. (Use a multimeter to check that the AC voltage of
the port is 0 V.)
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 filter.
Step 3 Remove the power cables and terminals shown in Figure 5-47 using a Phillips screwdriver.
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