Huawei NetCol5000-A050 User manual

NetCol5000-A050 In-row Air Cooled Smart
Cooling Product
User Manual
Issue 13
Date 2023-08-20
HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Copyright © Huawei Digital Power Technologies Co., Ltd. 2023. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Digital Power Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei
Digital Power Technologies Co., Ltd. and the customer. All or part of the products, services and features
described in this document may not be within the purchase scope or the usage scope. Unless otherwise
specied in the contract, all statements, information, and recommendations in this document are
provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every eort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Digital Power Technologies Co., Ltd.
Address: Huawei Digital Power Antuoshan Headquarters
Futian, Shenzhen 518043
People's Republic of China
Website: https://digitalpower.huawei.com
Issue 13 (2023-08-20) Copyright © Huawei Digital Power Technologies Co., Ltd. i

About This Document
Purpose
This document describes the NetCol5000-A air cooled in-row precision smart
cooling product in terms of its product overview, installation, power-on
commissioning, operation and maintenance (O&M), and FAQ. It helps readers
understand how to use and maintain the NetCol5000-A.
Figures provided in this document are for reference only.
Intended Audience
This document is intended for:
● Technical support engineers
● Hardware installation engineers
● Commissioning engineers
● Maintenance engineers
Symbol Conventions
The symbols that may be found in this document are dened as follows.
Symbol Description
Indicates a hazard with a high level of risk which, if
not avoided, will result in death or serious injury.
Indicates a hazard with a medium level of risk which,
if not avoided, could result in death or serious injury.
Indicates a hazard with a low level of risk which, if
not avoided, could result in minor or moderate injury.
NetCol5000-A050 In-row Air Cooled Smart Cooling
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Issue 13 (2023-08-20) Copyright © Huawei Digital Power Technologies Co., Ltd. ii

Symbol Description
Indicates a potentially hazardous situation which, if
not avoided, could result in equipment damage, data
loss, performance deterioration, or unanticipated
results.
NOTICE is used to address practices not related to
personal injury.
Supplements the important information in the main
text.
NOTE is used to address information not related to
personal injury, equipment damage, and environment
deterioration.
Change History
Issue Date Description
13 2023-08-20 ● Updated the cable, trampling
prevention, and fan requirements.
● Updated the requirements for
installing the water-cooled module.
12 2023-03-30 ● Updated the outdoor unit technical
specications.
● Updated the indoor unit installation
requirements.
● Updated the cable requirements.
11 2022-12-15 ● Updated the safety information.
● Optimized the description in the
section "Installing Drainpipes."
● Optimized the description about the
requirements for installing teamwork
monitoring cables.
● Optimized the description about the
pipe length for charging the
refrigerant.
● Updated the startup procedure.
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Issue 13 (2023-08-20) Copyright © Huawei Digital Power Technologies Co., Ltd. iii

Issue Date Description
10 2022-07-15 ● Optimized the description about the
outdoor unit environment in section
"Technical Specications."
● Added the description about the
environment requirements for
installing the indoor unit when the
inlet water pressure is low.
● Added the recommended ow rate of
the vacuum pump used for
vacuumizing.
● Updated the software version to
V100R021C10SPC350, the options in
system settings after power-on, and
the descriptions about
communications parameter settings,
wizard-based startup, and WebUI
preparation and login.
● Updated the recommended values for
temperature and humidity setpoints.
● Added related sections because FE
teamwork control is supported.
● Moved the section "Alarm Reference"
to the
FusionCol and NetCol Smart
Cooling Product Alarm Reference .
● Updated the description about
reclaiming refrigerant.
● Updated the procedure for replacing
an outdoor fan.
09 2022-04-11 ● Updated Table 6-1.
● Updated Table 4-11.
● Updated Table 4-2.
● Updated 6.5.1 Setting T/H Sensor
Parameters.
● Deleted the description about pressure
dierence control setting because the
setting is not supported.
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Issue 13 (2023-08-20) Copyright © Huawei Digital Power Technologies Co., Ltd. iv

Issue Date Description
08 2021-09-17 ● Added equipotential cable
specications.
● Updated Power Cable Filter for an
Outdoor Unit.
● Adjusted the document structure.
● Updated the description about class A,
B, C, and D environments.
● Updated 4.9.6 (Optional) Installing
Outdoor Unit Communications
Cables.
07 2020-12-10 ● Updated 11.2 Replacing an Indoor
Fan.
● Adjusted the document structure.
06 2020-10-22 Added the section "Replacing the High
Pressure Switch."
05 2020-08-28 Added the encryption operation CBC
switch.
04 2020-06-01 ● Added the MAC-CAN networking
mode.
● Added the NetCol5000-A050HRWE2
model.
03 2020-02-20 Updated the description about the
electric control box of the outdoor unit.
02 2020-01-06 Updated the safety information.
01 2019-06-30 This issue is the rst ocial release.
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Issue 13 (2023-08-20) Copyright © Huawei Digital Power Technologies Co., Ltd. v

Contents
About This Document................................................................................................................ ii
1 Safety Information.................................................................................................................. 1
1.1 Personal Safety.........................................................................................................................................................................2
1.2 Electrical Safety........................................................................................................................................................................4
1.3 Environmental Requirements.............................................................................................................................................. 8
1.4 Mechanical Safety.................................................................................................................................................................10
1.5 Cooling System Safety.........................................................................................................................................................16
2 Product Description.............................................................................................................. 17
2.1 Model Number Description............................................................................................................................................... 17
2.2 Components............................................................................................................................................................................ 19
2.2.1 Indoor Unit.......................................................................................................................................................................... 20
2.2.2 Display Module.................................................................................................................................................................. 24
2.2.3 Main Control Module....................................................................................................................................................... 27
2.2.4 Outdoor Unit....................................................................................................................................................................... 29
2.2.5 Water-Cooled Module......................................................................................................................................................30
2.2.6 Low Temperature Component...................................................................................................................................... 30
2.2.7 Physical Ports...................................................................................................................................................................... 31
3 Technical Specications....................................................................................................... 33
4 Installation..............................................................................................................................40
4.1 Installation Requirements.................................................................................................................................................. 40
4.1.1 Installation Precautions................................................................................................................................................... 40
4.1.2 Layout Principles................................................................................................................................................................ 43
4.1.3 Indoor Unit Installation Requirements.......................................................................................................................45
4.1.4 Outdoor Unit Installation Requirements................................................................................................................... 47
4.1.5 Installation Requirements for the Water-Cooled Module................................................................................... 56
4.2 Installation Preparations.................................................................................................................................................... 58
4.2.1 Tools....................................................................................................................................................................................... 58
4.2.2 Materials...............................................................................................................................................................................63
4.2.2.1 R410A Refrigerant..........................................................................................................................................................63
4.2.2.2 Refrigerant Oil.................................................................................................................................................................65
4.2.2.3 Oil Trap and Inverted Trap.......................................................................................................................................... 65
4.2.2.4 Humidier Water Inlet Pipe....................................................................................................................................... 67
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4.2.2.5 Drainpipe...........................................................................................................................................................................67
4.2.2.6 Pipe Support.................................................................................................................................................................... 68
4.2.2.7 Cable................................................................................................................................................................................... 69
4.3 Unpacking and Acceptance............................................................................................................................................... 71
4.4 Installing the Indoor Unit...................................................................................................................................................72
4.4.1 Checking the Nitrogen Pressure................................................................................................................................... 72
4.4.2 Removing the Pallet......................................................................................................................................................... 73
4.4.3 Removing the Transport Fasteners from the Compressor...................................................................................74
4.4.4 Securing the Cabinet........................................................................................................................................................ 75
4.4.5 (Optional) Installing the Top Frame........................................................................................................................... 78
4.5 Installing the Outdoor Unit............................................................................................................................................... 80
4.5.1 Checking the Nitrogen Pressure................................................................................................................................... 80
4.5.2 Removing the Pallet......................................................................................................................................................... 81
4.5.3 Securing an Outdoor Unit.............................................................................................................................................. 82
4.5.3.1 Horizontal Installation Scenario............................................................................................................................... 82
4.5.3.2 Vertical Installation Scenario (NetCol500-A060/NetCol500-A080)..............................................................84
4.5.3.3 Vertical Installation Scenario (NetCol500-A120)................................................................................................89
4.6 (Optional) Installing a Low Temperature Component............................................................................................ 93
4.6.1 Checking the Nitrogen Pressure................................................................................................................................... 93
4.6.2 Removing the Pallet......................................................................................................................................................... 94
4.6.3 Securing a Low temperature Component................................................................................................................. 95
4.7 Installing a Water-Cooled Module.................................................................................................................................. 95
4.7.1 Checking the Nitrogen Pressure................................................................................................................................... 95
4.7.2 Removing the Pallet......................................................................................................................................................... 96
4.7.3 Securing a Water-Cooled Module................................................................................................................................96
4.8 Installing Pipes....................................................................................................................................................................... 97
4.8.1 Notices for Laying Pipes..................................................................................................................................................98
4.8.2 Welding Indoor Unit Pipes........................................................................................................................................... 100
4.8.3 Welding Outdoor Unit Pipes....................................................................................................................................... 103
4.8.4 (Optional) Welding Pipes for the Low Temperature Component.................................................................. 103
4.8.5 Welding the Water Cooling Module.........................................................................................................................105
4.8.6 Installing Cooling Water pipes for the Water-Cooled Module........................................................................105
4.8.7 Installing Drainpipes...................................................................................................................................................... 106
4.8.8 (Optional) Installing the Humidier Water Inlet Pipe....................................................................................... 108
4.8.8.1 Installing the Humidier Water Inlet Pipe (With a Humidier Hose)...................................................... 108
4.8.8.2 Installing the Humidier Water Inlet Pipe (Without a Humidier Hose)............................................... 110
4.8.9 Leakage Test with Nitrogen for Refrigerant Pipes...............................................................................................112
4.8.10 (Optional) Leakage Test with Water for the Water-Cooled Module..........................................................114
4.9 Installing Cables.................................................................................................................................................................. 114
4.9.1 Cable Connection Precautions.................................................................................................................................... 115
4.9.2 Installing the Equipotential Ground Cable.............................................................................................................115
4.9.3 Installing Power Cables for the Indoor Unit.......................................................................................................... 116
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4.9.4 Installing the Outdoor Unit Power Cable............................................................................................................... 117
4.9.5 (Optional) Installing Power Cables for the Low Temperature Component................................................118
4.9.6 (Optional) Installing Outdoor Unit Communications Cables.......................................................................... 119
4.9.7 (Optional) Installing T/H Sensors Outside a Cabinet and Cables..................................................................120
4.9.8 (Optional) Connecting Teamwork and Monitoring Communications Cables............................................123
4.9.8.1 Preparing a Network Cable......................................................................................................................................123
4.9.8.2 Smart Module Networking Scenario.................................................................................................................... 124
4.9.8.3 Independent Networking.......................................................................................................................................... 125
4.9.8.3.1 FE Teamwork + FE Monitoring............................................................................................................................ 125
4.9.8.3.2 FE Teamwork + RS485 Monitoring.................................................................................................................... 126
4.9.8.3.3 CAN Teamwork + FE Monitoring........................................................................................................................ 128
4.9.8.3.4 CAN Teamwork + RS485 Monitoring................................................................................................................ 128
5 Installation Verication.....................................................................................................131
5.1 Checking the Indoor Unit................................................................................................................................................ 131
5.2 Checking the Outdoor Unit.............................................................................................................................................133
5.3 Checking the Water Cooling Module.......................................................................................................................... 134
6 Power-On Commissioning................................................................................................. 136
6.1 Vacuumizing and Precharging Refrigerant................................................................................................................ 136
6.1.1 Refrigerant Charge Amount........................................................................................................................................ 136
6.1.2 Vacuumizing..................................................................................................................................................................... 137
6.1.3 Precharging Refrigerant................................................................................................................................................ 139
6.2 Power-On Preparations.................................................................................................................................................... 142
6.3 Power-On.............................................................................................................................................................................. 142
6.4 Home Screen........................................................................................................................................................................ 152
6.5 Setting Parameters.............................................................................................................................................................154
6.5.1 Setting T/H Sensor Parameters.................................................................................................................................. 154
6.5.2 (Optional) Setting Teamwork Parameters............................................................................................................. 157
6.5.3 (Optional) Setting Communications Parameters.................................................................................................163
6.5.3.1 Setting Access Control Parameters........................................................................................................................ 163
6.5.3.2 Setting Communications Parameters (Modbus-RTU Protocol)................................................................... 163
6.5.3.3 Setting Communications Parameters (Modbus-TCP Protocol)....................................................................164
6.5.3.4 Setting Communications Parameters (SNMP Protocol).................................................................................166
6.5.3.5 (Optional) Setting WiFi Parameters......................................................................................................................168
6.6 Startup....................................................................................................................................................................................169
6.7 Charging the Remaining Refrigerant........................................................................................................................... 171
6.8 Wizard Startup.................................................................................................................................................................... 173
6.9 (Optional) Device Power-O......................................................................................................................................... 175
6.10 Checking After Commissioning................................................................................................................................... 176
7 WebUI.................................................................................................................................... 177
7.1 Preparations and WebUI Login......................................................................................................................................177
7.2 Introduction to the WebUI.............................................................................................................................................. 179
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8 Maintenance.........................................................................................................................181
8.1 Indoor Unit Routine Maintenance................................................................................................................................ 181
8.1.1 Data Record...................................................................................................................................................................... 181
8.1.2 Monthly Maintenance................................................................................................................................................... 182
8.1.3 Quarterly Maintenance................................................................................................................................................. 184
8.1.4 Yearly Maintenance........................................................................................................................................................ 185
8.2 Outdoor Unit Routine Maintenance............................................................................................................................ 186
8.2.1 Monthly Maintenance................................................................................................................................................... 186
8.2.2 Semi-Annual Maintenance.......................................................................................................................................... 186
8.3 Water Cooling Module Routine Maintenance..........................................................................................................187
8.3.1 Monthly Maintenance................................................................................................................................................... 187
8.3.2 Semi-Annual Maintenance.......................................................................................................................................... 188
9 Alarm Reference.................................................................................................................. 189
10 Troubleshooting................................................................................................................ 190
11 Parts Replacement............................................................................................................195
11.1 Replacing an Air Filter.................................................................................................................................................... 195
11.2 Replacing an Indoor Fan................................................................................................................................................196
11.3 Replacing an Outdoor Fan............................................................................................................................................ 198
11.4 Replacing a Dierential Pressure Switch................................................................................................................. 200
11.5 Replacing a Pressure Switch or Pressure Sensor................................................................................................... 202
11.6 Replacing a Compressor (Threaded Connection)................................................................................................. 204
11.7 Replacing a Compressor (Welding)........................................................................................................................... 211
11.8 Replacing a Filter Dryer (Threaded Connection).................................................................................................. 216
11.9 Replacing a Filter Dryer (Welding)............................................................................................................................ 219
11.10 Replacing a Liquid Level Detector........................................................................................................................... 224
11.11 Replacing a Condensate Pump................................................................................................................................. 227
11.12 Replacing a Wet Film Humidier............................................................................................................................. 230
11.13 Replacing a Display Module...................................................................................................................................... 232
11.14 Replacing a Main Control Module or PSU............................................................................................................ 234
11.15 Replacing an Electric Heater......................................................................................................................................237
12 FAQ....................................................................................................................................... 241
12.1 How Do I Issue a Start/Shutdown Command?......................................................................................................241
12.2 Operations with a USB Flash Drive............................................................................................................................243
12.2.1 How Do I Export Data?...............................................................................................................................................244
12.2.2 How Do I Export or Import a Conguration File?............................................................................................. 245
12.2.3 How Do I Import a Certicate and Key?.............................................................................................................. 246
12.3 Display Module Screen Operations............................................................................................................................247
12.3.1 How Do I Set LAN Parameters?...............................................................................................................................247
12.3.2 How Do I Query Temperature and Humidity Curves?..................................................................................... 248
12.3.3 Querying Logs................................................................................................................................................................ 249
12.3.4 How Do I View Component Status?.......................................................................................................................250
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12.3.5 Querying System Parameters................................................................................................................................... 250
12.3.6 Querying Version Details........................................................................................................................................... 251
12.3.7 How Do I Check Teamwork Control Information?............................................................................................251
12.3.8 How Do I Mute or Silence a Buzzer?..................................................................................................................... 251
12.3.9 How Can I Handle Active Alarms?......................................................................................................................... 252
12.3.10 How Do I Delete Historical Alarms?....................................................................................................................253
12.3.11 How Do I Clear Component Runtime?............................................................................................................... 254
12.3.12 How to Calibrate a Sensor...................................................................................................................................... 254
12.3.13 How Do I Change the Password?......................................................................................................................... 255
12.3.14 How to Set Alarm Parameters...............................................................................................................................256
12.3.15 How to Commission Single Component............................................................................................................ 258
12.3.16 How Do I Query the Setting of a Parameter Before Change?................................................................... 259
12.4 WebUI Operations........................................................................................................................................................... 259
12.4.1 How Do I Manage WebUI Users?........................................................................................................................... 259
12.4.2 How Do I Install a Network Security Certicate?............................................................................................. 261
12.4.3 How Do I View Active Alarms and Historical Alarms?.................................................................................... 262
12.4.4 How Do I Export or Import a Conguration File?............................................................................................. 262
12.4.5 How Do I Export Fault Information?..................................................................................................................... 262
12.4.6 How Do I Change an IP Address?........................................................................................................................... 263
12.4.7 How Do I View Version Information?.................................................................................................................... 263
A Power Cable Filter for an Outdoor Unit........................................................................264
B Indoor Unit Cooling Component Layout....................................................................... 265
C Outdoor Unit Electric Control Box Layout.................................................................... 266
C.1 Electric Control Box Layout for the Indoor Unit...................................................................................................... 266
C.2 NetCol500-A060 Electric Control Box Layout...........................................................................................................270
C.3 NetCol500-A080 Electric Control Box Layout...........................................................................................................272
C.4 NetCol500-A120 Electric Control Box Layout...........................................................................................................273
D Base Drawing.......................................................................................................................274
D.1 Indoor Unit Base Drawing...............................................................................................................................................274
D.2 Outdoor Unit Base Drawings......................................................................................................................................... 275
D.2.1 NetCol500-A060..............................................................................................................................................................276
D.2.2 NetCol500-A080..............................................................................................................................................................283
D.2.3 NetCol500-A120..............................................................................................................................................................288
E Electrical Conceptual Diagram........................................................................................ 291
E.1 Indoor Unit Electrical Diagrams.................................................................................................................................... 291
E.2 NetCol500-A060 Electrical Diagram............................................................................................................................ 295
E.3 NetCol500-A080 Electrical Diagram............................................................................................................................ 296
E.4 NetCol500-A120 Electrical Diagram............................................................................................................................ 297
F Acronyms and Abbreviations............................................................................................298
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1 Safety Information
Statement
Before transporting, storing, installing, operating, using, and/or maintaining
the equipment, read this document, strictly follow the instructions provided
herein, and follow all the safety instructions on the equipment and in this
document. In this document, "equipment" refers to the products, software,
components, spare parts, and/or services related to this document; "the Company"
refers to the manufacturer (producer), seller, and/or service provider of the
equipment; "you" refers to the entity that transports, stores, installs, operates,
uses, and/or maintains the equipment.
The Danger, Warning, Caution, and Notice statements described in this
document do not cover all the safety precautions. You also need to comply with
relevant international, national, or regional standards and industry practices. The
Company shall not be liable for any consequences that may arise due to
violations of safety requirements or safety standards concerning the design,
production, and usage of the equipment.
The equipment shall be used in an environment that meets the design
specications. Otherwise, the equipment may be faulty, malfunctioning, or
damaged, which is not covered under the warranty. The Company shall not be
liable for any property loss, personal injury, or even death caused thereby.
Comply with applicable laws, regulations, standards, and specications during
transportation, storage, installation, operation, use, and maintenance.
Do not perform reverse engineering, decompilation, disassembly, adaptation,
implantation, or other derivative operations on the equipment software. Do not
study the internal implementation logic of the equipment, obtain the source code
of the equipment software, violate intellectual property rights, or disclose any of
the performance test results of the equipment software.
The Company shall not be liable for any of the following circumstances or
their consequences:
● Equipment damage due to force majeure such as earthquakes, oods,
volcanic eruptions, debris ows, lightning strikes, res, wars, armed conicts,
typhoons, hurricanes, tornadoes, and extreme weather conditions
● Operation beyond the conditions specied in this document
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● Installation or use in environments that do not comply with international,
national, or regional standards
● Installation or use by unqualied personnel
● Failure to follow the operation instructions and safety precautions on the
product and in the document
● Unauthorized modications to the product or software code or removal of the
product
● Damage caused during transportation by you or a third party authorized by
you
● Storage conditions that do not meet the requirements specied in the product
document
● Failure to comply with local laws, regulations, or related standards due to the
materials and tools prepared by you
● Damage caused by your or a third party's negligence, intentional breach,
gross negligence, or improper operations or damage not caused by the
Company
1.1 Personal Safety
D ANGER
Do not work with power on during installation. Do not install or remove a cable
with power on. Transient contact between the core of the cable and the conductor
will generate electric arcs or sparks, which may cause a re or personal injury.
D ANGER
Non-standard and improper operations on the energized equipment may cause
re or electric shocks, resulting in property damage, personal injury, or even death.
D ANGER
Before operations, remove conductive objects such as watches, bracelets, bangles,
rings, and necklaces to prevent electric shocks.
D ANGER
During operations, use dedicated insulated tools to prevent electric shocks or short
circuits. The insulation and voltage resistance must comply with local laws,
regulations, standards, and specications.
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WARNING
During operations, wear personal protective equipment such as protective
clothing, insulated shoes, goggles, safety helmets, and insulated gloves.
Figure 1-1 Personal protective equipment
General Requirements
● Do not stop protective devices. Pay attention to the warnings, cautions, and
related precautionary measures in this document and on the equipment.
● If there is a likelihood of personal injury or equipment damage during
operations, immediately stop, report the case to the supervisor, and take
feasible protective measures.
● Do not power on the equipment before it is installed or conrmed by
professionals.
● Do not touch the power supply equipment directly or with conductors such as
damp objects. Before touching any conductor surface or terminal, measure
the voltage at the contact point to ensure that there is no risk of electric
shock.
● Do not touch a running fan with your hands, components, screws, tools, or
boards. Otherwise, personal injury or equipment damage may occur.
● In the case of a re, immediately leave the building or the equipment area
and activate the re alarm or call emergency services. Do not enter the
aected building or equipment area under any circumstances.
Personnel Requirements
● Only professionals and trained personnel are allowed to operate the
equipment.
– Professionals: personnel who are familiar with the working principles and
structure of the equipment, trained or experienced in equipment
operations and are clear of the sources and degree of various potential
hazards in equipment installation, operation, maintenance
– Trained personnel: personnel who are trained in technology and safety,
have required experience, are aware of possible hazards on themselves in
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certain operations, and are able to take protective measures to minimize
the hazards on themselves and other people
● Personnel who plan to install or maintain the equipment must receive
adequate training, be able to correctly perform all operations, and understand
all necessary safety precautions and local relevant standards.
● Only qualied professionals or trained personnel are allowed to install,
operate, and maintain the equipment.
● Only qualied professionals are allowed to remove safety facilities and inspect
the equipment.
● Personnel who will perform special tasks such as electrical operations,
working at heights, and operations of special equipment must possess the
required local qualications.
● Only authorized professionals are allowed to replace the equipment or
components (including software).
● Only personnel who need to work on the equipment are allowed to access
the equipment.
1.2 Electrical Safety
D ANGER
Before connecting cables, ensure that the equipment is intact. Otherwise, electric
shocks or res may occur.
D ANGER
Non-standard and improper operations may result in re or electric shocks.
D ANGER
Prevent foreign matter from entering the equipment during operations. Otherwise,
equipment damage, load power derating, power failure, or personal injury may
occur.
WARNING
For the equipment that needs to be grounded, install the ground cable rst when
installing the equipment and remove the ground cable last when removing the
equipment.
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CA UTION
Do not route cables near the air intake or exhaust vents of the equipment.
CA UTION
Do not directly connect aluminum cables to prevent electrochemical corrosion of
copper and aluminum.
CA UTION
Stay away from the equipment when preparing cables to prevent cable scraps
from entering the equipment. Cable scraps may cause sparks and result in
personal injury and equipment damage.
General Requirements
● Follow the procedures described in the document for installation, operation,
and maintenance. Do not reconstruct or alter the equipment, add
components, or change the installation sequence without permission.
● Install temporary fences or warning ropes and hang "No Entry" signs around
the operation area to keep unauthorized personnel away from the area.
● Before installing or removing power cables, turn o the switches of the
equipment and its upstream and downstream switches.
● If any liquid is detected inside the equipment, disconnect the power supply
immediately and do not use the equipment.
● Before performing operations on the equipment, check that all tools meet the
requirements and record the tools. After the operations are complete, collect
all of the tools to prevent them from being left inside the equipment.
● Before installing power cables, check that cable labels are correct and cable
terminals are insulated.
● When installing the equipment, use a torque tool of a proper measurement
range to tighten the screws. When using a wrench to tighten the screws,
ensure that the wrench does not tilt and the torque error does not exceed
10% of the specied value.
● Ensure that bolts are tightened with a torque tool and marked in red and blue
after double-check. Installation personnel mark tightened bolts in blue.
Quality inspection personnel conrm that the bolts are tightened and then
mark them in red. (The marks must cross the edges of the bolts.)
● After the installation is complete, ensure that protective cases, insulation
tubes, and other necessary items for all electrical components are in position
to avoid electric shocks.
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● If the equipment has multiple inputs, disconnect all the inputs before
operating the equipment.
● Before maintaining a downstream electrical or power distribution device, turn
o the output switch on the power supply equipment.
● During equipment maintenance, attach "Do not switch on" labels near the
upstream and downstream switches or circuit breakers as well as warning
signs to prevent accidental connection. The equipment can be powered on
only after troubleshooting is complete.
● If fault diagnosis and troubleshooting need to be performed after power-o,
take the following safety measures: Disconnect the power supply. Check
whether the equipment is live. Install a ground cable. Hang warning signs and
set up fences.
● Check equipment connections periodically, ensuring that all screws are
securely tightened.
● Only qualied professionals can replace a damaged cable.
● Do not scrawl, damage, or block any labels or nameplates on the equipment.
Promptly replace labels that have worn out.
● Do not use solvents such as water, alcohol, or oil to clean electrical
components inside or outside of the equipment.
Grounding
● Ensure that the grounding impedance of the equipment complies with local
electrical standards.
● Ensure that the equipment is connected permanently to the protective
ground. Before operating the equipment, check its electrical connection to
ensure that it is reliably grounded.
● Ensure that the protective ground point of the equipment is reliably
connected to the ground screw of the metal enclosure (connection resistance:
≤ 0.1 ohms).
● Ensure that the ground resistance of the system for lightning protection is less
than or equal to 10 ohms.
● Do not operate the equipment in the absence of a properly installed ground
conductor.
● Do not damage the ground conductor.
● If high touch current may occur on the equipment, ground the protective
ground terminal on the equipment enclosure before connecting the power
supply; otherwise, electric shock as a result of touch current may occur.
Cabling
● When selecting, installing, and routing cables, follow local safety regulations
and rules.
● The ame spread rating of cables shall meet the UL 1581 VW-1 or IEC
60332-3-22 (ZB) or higher requirements.
● When routing power cables, ensure that there is no coiling or twisting. Do not
join or weld power cables. If necessary, use a longer cable.
● Ensure that all cables are properly connected and insulated, and meet
specications.
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● Ensure that the slots and holes for routing cables are free from sharp edges,
and that the positions where cables are routed through pipes or cable holes
are equipped with cushion materials to prevent the cables from being
damaged by sharp edges or burrs.
● If a cable is connected to the cabinet from the top, bend the cable in a U
shape outside the cabinet and then route it into the cabinet.
● Ensure that cables of the same type are bound together neatly and straight
and that the cable sheath is intact. When routing cables of dierent types,
ensure that they are at least 30 mm away from each other.
● If the external conditions (such as the cable layout or ambient temperature)
change, verify the cable usage in accordance with the IEC-60364-5-52 or local
laws and regulations. For example, check that the current-carrying capacity
meets requirements.
● When routing cables, reserve at least 30 mm clearance between the cables
and heat-generating components or areas. This prevents deterioration or
damage to the cable insulation layer.
● When the temperature is low, violent impact or vibration may damage the
plastic cable sheathing. To ensure safety, comply with the following
requirements:
– Cables can be laid or installed only when the temperature is higher than
0°C. Handle cables with caution, especially at a low temperature.
– Cables stored at subzero temperatures must be stored at room
temperature for at least 24 hours before they are laid out.
● Do not perform any improper operations, for example, dropping cables
directly from a vehicle. Otherwise, the cable performance may deteriorate due
to cable damage, which aects the current-carrying capacity and temperature
rise.
ESD
NO TICE
The static electricity generated by human bodies may damage the electrostatic-
sensitive components on boards, for example, the large-scale integrated (LSI)
circuits.
● When touching the equipment and handling boards, modules with exposed
circuit boards, or application-specic integrated circuits (ASICs), observe ESD
protection regulations and wear ESD clothing and ESD gloves or a well-
grounded ESD wrist strap.
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Figure 1-2 Wearing an ESD wrist strap
● When holding a board or a module with exposed circuit boards, hold its edge
without touching any components. Do not touch the components with bare
hands.
● Package boards or modules with ESD packaging materials before storing or
transporting them.
1.3 Environmental Requirements
D ANGER
Do not expose the equipment to ammable or explosive gas or smoke. Do not
perform any operation on the equipment in such environments.
D ANGER
Do not store any ammable or explosive materials in the equipment area.
D ANGER
Do not place the equipment near heat sources or re sources, such as smoke,
candles, heaters, or other heating devices. Overheat may damage the equipment
or cause a re.
WARNING
Install the equipment in an area far away from liquids. Do not install it under
areas prone to condensation, such as under water pipes and air exhaust vents, or
areas prone to water leakage, such as air conditioner vents, ventilation vents, or
feeder windows of the equipment room. Ensure that no liquid enters the
equipment to prevent faults or short circuits.
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WARNING
To prevent damage or re due to high temperature, ensure that the ventilation
vents or heat dissipation systems are not obstructed or covered by other objects
while the equipment is running.
General Requirements
● Ensure that the equipment is stored in a clean, dry, and well ventilated area
with proper temperature and humidity and is protected from dust and
condensation.
● Keep the installation and operating environments of the equipment within the
allowed ranges. Otherwise, its performance and safety will be compromised.
● Do not install, use, or operate outdoor equipment and cables (including but
not limited to moving equipment, operating equipment and cables, inserting
connectors to or removing connectors from signal ports connected to outdoor
facilities, working at heights, performing outdoor installation, and opening
doors) in harsh weather conditions such as lightning, rain, snow, and level 6
or stronger wind.
● Do not install the equipment in an environment with direct sunlight, dust,
smoke, volatile or corrosive gases, infrared and other radiations, organic
solvents, or salty air.
● Do not install the equipment in an environment with conductive metal or
magnetic dust.
● Do not install the equipment in an area conducive to the growth of
microorganisms such as fungus or mildew.
● Do not install the equipment in an area with strong vibration, noise, or
electromagnetic interference.
● Ensure that the site complies with local laws, regulations, and related
standards.
● Ensure that the ground in the installation environment is solid, free from
spongy or soft soil, and not prone to subsidence. The site must not be located
in a low-lying land prone to water or snow accumulation, and the horizontal
level of the site must be above the highest water level of that area in history.
● Before opening doors during the installation, operation, and maintenance of
the equipment, clean up any water, ice, snow, or other foreign objects on the
top of the equipment to prevent foreign objects from falling into the
equipment.
● When installing the equipment, ensure that the installation surface is solid
enough to bear the weight of the equipment.
● Ensure that the equipment room provides good heat insulation, and that the
walls and oor are dampproof.
● Install rodent guards at the door of the equipment room to prevent rodents
and insects from entering the room.
● All cable holes must be sealed. Seal the used cable holes with sealing putty.
Seal the unused cable holes with the caps delivered with the equipment. The
following gure shows the criteria for correct sealing with sealing putty.
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