Huawei FusionModule800 Maintenance Manual page 77

FusionModule800 Smart Small Data Center
Maintenance Guide
magnetism of the liquid level switch, causing the reed switch chip in the specified position
inside the sensor detection pipe to move and therefore send the contact on/off conversion
signal to control the liquid level detector.
The liquid level detector is maintained from the rear.
Figure 5-33 Liquid level detectors
(1) High liquid level detector
Procedure
Step 1 Shut down the air conditioner over the EMS.
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Step 2 Disconnect the power supply from the air conditioner control unit after the air conditioner
shuts down over the EMS.
Step 3 Remove the return air filter by referring to
Step 4 Cut the cable tie securing the terminal of the liquid level detector, and remove the terminal.
Step 5 Loosen the two butterfly nuts on the liquid level detector fastener, remove cables from the
liquid level detector, and remove the fastener, as shown in
Issue 02 (2016-11-15)
Method 1: Log in to the ECC800 mobile phone or pad app as admin.
a. Choose Home.
b. Tap the cabinet that houses the air conditioner in the micro-module view.
c. Tap the air conditioner to be set in the cabinet layout diagram.
d. Choose Real-time Data > OFF.
Method 2: Log in to the ECC800 WebUI as admin. Choose Monitoring > Air
Conditioner > NetCol5000-A0104 > Controls > Ctrl Info, choose On/off status on
EMS > Off, and then click Submit.
0104 in NetCol5000-A0104 is variable and subject to changes with the air conditioner connection
sequence. The displayed value prevails.
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Figure 5-33 shows liquid level detectors.
(2) Low liquid level detector
5.3.1.1 Replacing a Return Air
Figure 5-34.
5 Parts Replacement
Filter.
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