Replacing The Relay; Replacing The Fuse - Huawei NetCol8000-E220 User Manual

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Step 4 Install a new SPD, install the end fastener, and reconnect the cables.
Step 5 Close the door of the electric control box.
Step 6 Power on the device and tap Startup on the home screen. Ensure that the device is
running normally without any alarms.
----End

6.5.11 Replacing the Relay

Prerequisites
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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 door of the electric control box.
Step 3 Remove the cables from the faulty relay, unclamp the buckle at the relay
installation box, and remove the faulty relay.
Step 4 Insert the new relay into the relay installation box in the correct direction, clamp
the buckle at the new relay, and install the cable.
Step 5 Close the door of the electric control box.
Step 6 Power on the device and tap Startup on the home screen. Ensure that the device is
running normally without any alarms.
----End

6.5.12 Replacing the Fuse

Prerequisites
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Issue 06 (2020-08-19)
The relay (Figure 3-32
A spare relay of the same model is available and functional.
Tool: Phillips screwdriver
NO TICE
The fuse (Figure 3-32
A spare fuse of the same model is available and functional.
Tool: flat-head screwdriver
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
shows the position of relay) needs to be replaced.
shows the position of fuse) needs to be replaced.
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