FusionModule800 Smart Small Data Center
Maintenance Guide
5 Parts Replacement
Issue 02 (2016-11-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
88
Context
Tools: Phillips screwdriver, torque wrench, 557 glue, refrigerant retrieval device
(required based on local conditions).
Preparation: Power off the outdoor unit and empty the system of refrigerant.
Procedure
Step 1
Shut down the air conditioner over the EMS.
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
, set
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.
Step 2
Disconnect the power supplies from the air conditioner control unit and the outdoor unit after
the air conditioner shuts down over the EMS.
Step 3
Reclaim all the refrigerant from the system using a refrigerant retrieval device to ensure that
there is no pressure inside the system.
Discharge the refrigerant if the local laws and regulations allow.
Step 4
Open the top cover, front panel, and left front panel.
Step 5
Remove the safety valve using a torque wrench.
shows the position of the safety
valve.
Step 6
Apply 557 glue to the threads of the safety valve.
Step 7
Tighten the safety valve to a torque of 60 N·m using a torque wrench.
Step 8
Perform a leakage test with nitrogen again.
Step 9
After checking that the air conditioner does not leak, vacuumize the air conditioner and
charge refrigerant.
Step 10
Reinstall the front panel, left front panel, and top cover.
----End
5.4 Replacing Monitoring System Components
After replacing a component of the monitoring system, set parameters for the new component
to ensure proper communication.