Step 8 Choose Monitoring > Cooling > NetCol5000-A1 > Running Info > T/H Sensor
Information, read the value of supply-air temperature sensor, and determine
whether the value is proper.
----End
6.4.3.1.5 Replacing a Low Pressure Sensor
Prerequisites
● Tools: an 11# solid wrench and a 27# solid wrench (or two adjustable
wrenches), Phillips screwdriver, diagonal pliers or scissors, refrigerant retrieval
device (required based on local conditions), nitrogen injection and pressure
preservation tool, vacuumization tool, refrigerant injection tool, cable tie,
sealant
● A low pressure sensor needs to be replaced.
● A spare low pressure sensor of the same model is available and functional.
Context
The low pressure sensor is maintained from the rear.
Procedure
Step 1 Shut down the smart cooling product over the EMS.
● Method 1: Log in to the ECC800-Pro mobile phone or pad app as admin.
a. Choose Home.
b. Tap the cabinet that houses the smart cooling product in the micro-
module view.
c. Tap the smart cooling product to be set in the cabinet layout diagram.
d. Choose Real-time Data > OFF.
● Method 2: Log in to the ECC800-Pro WebUI as admin. Choose Monitoring >
Cooling > NetCol5000-A1 > Controls > Control Information, choose
Startup/Shutdown control > OFF, and then click Submit.
1 in NetCol5000-A1 is variable and subject to changes with the smart cooling product
connection sequence. The displayed value prevails.
Step 2 Disconnect the power supply from the smart cooling product control unit after the
smart cooling product shuts down over the EMS.
Step 3 Reclaim the refrigerant.
Step 4 Remove the interconnection terminal from the low pressure sensor. Figure 6-11
shows the position of the low pressure sensor.
Step 5 Use diagonal pliers to cut
o the cable ties that secure the low pressure sensor
cable, and remove the low pressure sensor cable.
Step 6 Remove the low pressure sensor using adjustable wrenches.
FusionModule800 Smart Small Data Center
User Manual 6 O&M
Issue 01 (2021-02-05) Copyright © Huawei Technologies Co., Ltd. 423
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