Huawei NetCol8000-A Series User manual

NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
Issue
10
Date
2019-01-15
HUAWEI TECHNOLOGIES CO., LTD.

Issue 10 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
i
Copyright © Huawei Technologies Co., Ltd. 2019. 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 Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks 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 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 specified 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 effort 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 Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://e.huawei.com

NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
About This Document
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About This Document
Purpose
This document applies to the following NetCol8000-A series in-room air cooled smart cooling
product:
NetCol8000-A100: NetCol8000-A100 in-room air cooled smart cooling product that
uses the downflow mode.
NetCol8000-A050: NetCol8000-A050 in-room air cooled smart cooling product that
uses the downflow mode.
This document describes the NetCol8000-A(050, 100) in-room air cooled smart cooling
product, in terms of its product description, installation, commissioning, controller, and
operation and maintenance (O&M), helping readers to learn how to use and maintain the
smart cooling product.
Disclaimer
This product is professional equipment. Its noise meets the requirements of GB/T 19413-2010
Unitary air-conditioners for computer and data processing room. It is applicable to places
where the common public office is not easy to touch. If an office is set up near the equipment
room, sound insulation measures must be taken for the equipment room to meet the
GB50174-2017 data center design specifications.
Intended Audience
This document is intended for:
Sales personnel
Technical support personnel
System engineers
Hardware installation personnel
Commissioning engineers
Data configuration engineers
Maintenance personnel

NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
About This Document
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Symbol Conventions
The symbols that may be found in this document are defined in the following table.
Symbol
Description
Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
Indicates a potentially hazardous situation
which, if not avoided, may result in minor
or moderate injury.
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.
Calls attention to important information,
best practices and tips.
NOTE is used to address information not
related to personal injury, equipment
damage, and environment deterioration.
Change History
Changes between document issues are cumulative. The latest document issue contains all the
changes made in earlier issues.
Issue 10 (2019-01-15)
Updated the manual name and so on.
Issue 09 (2018-08-05)
Modified the section of environmental requirements.
Issue 08 (2018-04-18)
Add the description for low-temperature component.
Issue 07 (2018-01-29)
Modified the charge of refrigerant.

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Cooling Product
User Manual
About This Document
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Issue 06 (2016-11-26)
Modified the description for ACC Introduction.
Issue 05 (2016-01-25)
Modified the description for teamwork networking.
Issue 04 (2015-06-24)
Changed the name of the user manual to NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product User Manual.
Deleted descriptions about fan configurations.
Updated nitrogen injection and pressure preservation values.
Modified the controller section.
Modified the procedure for replacing an indoor fan.
Issue 03 (2014-10-10)
Modified the electric control box.
Issue 02 (2014-07-30)
Updated the document description.
Issue 01 (2013-12-10)
This issue is the first official release.

NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
Contents
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Contents
About This Document.................................................................................................................... ii
1 Safety Precautions.........................................................................................................................1
1.1 General Safety ..............................................................................................................................................................1
1.2 Electrical Safety............................................................................................................................................................3
1.3 Mechanical Safety ........................................................................................................................................................4
1.4 Operating Safety...........................................................................................................................................................5
1.5 Others ...........................................................................................................................................................................6
2 Product Description......................................................................................................................8
2.1 Model Description........................................................................................................................................................8
2.2 Composition..................................................................................................................................................................9
2.2.1 Indoor Unit ..............................................................................................................................................................10
2.2.2 Controller.................................................................................................................................................................13
2.2.2.1 Appearance and Ports............................................................................................................................................13
2.2.2.2 Functions and Features .........................................................................................................................................15
2.2.3 Monitoring System ..................................................................................................................................................15
2.2.4 Ports.........................................................................................................................................................................16
2.3 Environment Specifications........................................................................................................................................16
2.3.1 Installation requirements..........................................................................................................................................16
2.3.2 Environmental Requirements ..................................................................................................................................17
2.4 Performance Parameters.............................................................................................................................................18
3 Installation Guide.......................................................................................................................20
3.1 Installation Precautions...............................................................................................................................................20
3.1.1 Precautions...............................................................................................................................................................20
3.1.2 Tools ........................................................................................................................................................................20
3.1.3 Material Preparations...............................................................................................................................................24
3.1.4 Structural Specifications..........................................................................................................................................30
3.1.5 Installation Layout...................................................................................................................................................31
3.1.6 Installation Requirements........................................................................................................................................34
3.2 Installation Process.....................................................................................................................................................35
3.3 Unpacking...................................................................................................................................................................36
3.3.1 Removing the Package ............................................................................................................................................36
3.3.2 Checking Fittings.....................................................................................................................................................37

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3.4 Installing an Indoor Unit.............................................................................................................................................37
3.4.1 Installing Supports...................................................................................................................................................37
3.4.2 Lowing an Indoor Fan .............................................................................................................................................39
3.5 Connecting Pipelines..................................................................................................................................................47
3.5.1 Exhausting Nitrogen................................................................................................................................................47
3.5.2 Pipeline Ports on the Indoor Unit.............................................................................................................................49
3.5.3 Routing Refrigerant Pipes........................................................................................................................................51
3.5.4 Connecting Water Pipes...........................................................................................................................................54
3.5.5 Charge Nitrogen.......................................................................................................................................................56
3.6 Electric Cable Connections.........................................................................................................................................58
3.6.1 Cables to be Connected and Precautions .................................................................................................................58
3.6.2 Electrical Ports of an Indoor Unit............................................................................................................................59
3.6.3 Connecting the Power Cable to the Indoor Unit......................................................................................................61
3.6.4 Connecting the Voltage Jumper ...............................................................................................................................62
3.6.5 Connecting Signal Cables........................................................................................................................................63
3.6.5.1 Preparations Before Connecting Signal Cables....................................................................................................63
3.6.5.2 Connecting Outdoor Unit On/Off Signal Cable....................................................................................................65
3.6.5.2.1 Connecting NetCol500-A072 ............................................................................................................................65
3.6.5.2.2 Connecting NetCol500-A088 ............................................................................................................................65
3.6.5.3 Connecting a Water Sensor (Optional) .................................................................................................................65
3.6.6 Teamwork Networking and Monitoring...................................................................................................................65
3.7 Removing the Protective Device from the NetCol8000-A.........................................................................................69
3.7.1 Removing the Protective Device from the Infrared Humidifier Lamp....................................................................69
3.7.2 Connecting the signal cable to the HWA cable terminal..........................................................................................70
3.7.3 Removing the Sheet Metals for Transporting the Compressor................................................................................72
3.8 Installation Verification...............................................................................................................................................73
4 Power-On Commissioning........................................................................................................76
4.1 Commissioning Preparations......................................................................................................................................76
4.2 Vacuumization and Partially Charging in Refrigerant ................................................................................................76
4.2.1 Charging the Refrigerant and Refrigerant Oil..........................................................................................................76
4.2.2 Vacuumization .........................................................................................................................................................77
4.2.3 Procedure to Partially Charging in Refrigerant........................................................................................................80
4.3 Commissioning...........................................................................................................................................................83
4.3.1 Circuit Breakers.......................................................................................................................................................83
4.3.2 Commissioning Procedure.......................................................................................................................................84
4.4 Check After the Commissioning.................................................................................................................................85
5 ACC Introduction........................................................................................................................86
5.1 Home Screen...............................................................................................................................................................86
5.2 Menu Hierarchy..........................................................................................................................................................87
5.3 Quick Settings.............................................................................................................................................................89
5.4 Initial Configuration ...................................................................................................................................................89

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5.4.1 User Right Authentication .......................................................................................................................................90
5.4.2 Start and Shutdown..................................................................................................................................................91
5.4.3 Setting Temperature and Humidity Values...............................................................................................................91
5.4.4 Setting Communications Parameters (IP Settings) ..................................................................................................92
5.4.5 Setting Communications Parameters (Modbus Settings).........................................................................................93
5.4.6 Setting Communications Parameters (SNMP Settings)...........................................................................................95
5.4.7 Setting Teamwork Control Parameters ..................................................................................................................100
5.4.8 (Optional) Setting Alarm Parameters.....................................................................................................................106
5.5 Commissioning Guide ..............................................................................................................................................107
5.5.1 Entering Diagnostic Mode.....................................................................................................................................107
5.5.2 Commissioning Smart Cooling Product Components ...........................................................................................108
5.6 Querying Parameters ................................................................................................................................................109
5.6.1 Querying Temperature and Humidity Curves........................................................................................................109
5.6.2 Querying Alarms.................................................................................................................................................... 110
5.6.3 Querying Logs....................................................................................................................................................... 112
5.6.4 Querying Device Runtime ..................................................................................................................................... 113
5.6.5 Querying Component Status.................................................................................................................................. 113
5.6.6 Querying System Parameters................................................................................................................................. 114
5.6.7 Querying Version Details....................................................................................................................................... 115
5.7 Changing Parameters................................................................................................................................................ 116
5.7.1 Deleting Historical Alarms .................................................................................................................................... 116
5.7.2 Deleting Logs ........................................................................................................................................................ 117
5.7.3 Exporting Data....................................................................................................................................................... 118
5.7.4 Clearing the Runtime.............................................................................................................................................120
5.7.5 Calibrating a Sensor...............................................................................................................................................120
5.7.6 Calibrating the Screen............................................................................................................................................121
5.8 How to Perform Quick Settings................................................................................................................................123
5.9 How to Set the Language, Date, or Time..................................................................................................................123
5.10 How to Change a Password....................................................................................................................................124
5.11 How to Restore the Initial Password.......................................................................................................................125
5.12 How to Troubleshoot the Fault When the System Is in Upgrade Mode..................................................................126
5.13 How to Manually ClearAlarms..............................................................................................................................127
5.14 How to Enable a Humidity and Temperature Sensor..............................................................................................128
5.15 How to View Teamwork Control Information........................................................................................................128
5.16 Which Parameters Are Restored to Default Values After Default Settings Are Operated.......................................129
5.17 How to Change the SSHAccess Password.............................................................................................................130
5.18 Rectifying Faults of the E-label Identification Board.............................................................................................132
5.19 How to Import a Certificate and Key......................................................................................................................133
6 System Operation and Maintenance.....................................................................................135
6.1 Routine Maintenance................................................................................................................................................135
6.1.1 Routine Maintenance Overview ............................................................................................................................135

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6.1.2 Filters.....................................................................................................................................................................136
6.1.3 Indoor Fans............................................................................................................................................................137
6.1.4 Compressors ..........................................................................................................................................................137
6.1.5 Infrared Humidifier................................................................................................................................................138
6.1.6 Electrical Heaters...................................................................................................................................................141
6.1.7 Other Cooling System Components.......................................................................................................................141
6.1.8 Electric Control System.........................................................................................................................................143
6.2 Alarm Reference.......................................................................................................................................................145
6.3 Troubleshooting........................................................................................................................................................158
6.4 Parts Replacement ....................................................................................................................................................161
6.4.1 Replacing the Filters..............................................................................................................................................161
6.4.2 Replacing an Indoor Fan........................................................................................................................................162
6.4.3 Replacing a Compressor........................................................................................................................................167
6.4.4 Replacing the Infrared Humidifier Lamps.............................................................................................................170
6.4.5 Replacing Electrical Heaters..................................................................................................................................176
A Support Specifications............................................................................................................178
B Electrical Control Boxes ..........................................................................................................180
C Acronyms and Abbreviations................................................................................................182
D Electrical Schematic Diagram (NetCol8000-A050).............................................................183
E Electrical Schematic Diagram (NetCol8000-A100) .............................................................184
F Controller Menu Structure......................................................................................................185

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1 Safety Precautions
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1 Safety Precautions
1.1 General Safety
Declaration
Huawei shall not take responsibility for any damage caused by any of the following:
Operation under severe environments which are not specified in this document.
Usage under installation and operating environments which are not specified in related
international specifications.
Unauthorized product changes and software code modification.
Operation ignoring safety precautions and operation guidance specified in this document.
Damage caused by abnormal natural environments.
Overview
To ensure the safety of people and equipment, pay attention to the safety symbols on the
equipment and all the safety instructions in this document.
The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this
document do not represent all safety instructions. They are only supplements to the
safety instructions.
Pay attention to the safety symbols on the equipment and all safety instructions in this
document. The safety precautions given in this document do not cover all safety
precautions. Huawei will not be liable for any consequence caused by violation of the
safety operation regulations and design, production, and usage standards.
Appliances shall be classified according to the accessibility either as appliance not
accessible to the general public.
Local Safety Regulations
Follow local laws and regulations when operating the equipment. The safety instructions in
this document are only supplements to local laws and regulations.

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Personnel Requirements
Personnel who will install, operate, and maintain Huawei equipment must receive thorough
training, understand all necessary safety precautions, and be able to correctly perform all
operations.
Only trained and qualified personnel are allowed to install, operate, and maintain the
equipment.
Only personnel certified or authorized by Huawei are allowed to replace or modify the
equipment or components (including software).
Any fault or error that might cause safety problems must be reported immediately to a
supervisor.
Grounding Requirements
When installing a device, always install the ground cable first. When uninstalling a
device, disconnect it at the very end.
Do not damage the ground conductor.
Do not operate the device without a properly installed ground conductor.
The device must be connected permanently to the protection ground.
Personal Safety
Do not perform operations on the equipment or cables during thunderstorms.
Keep unauthorized personnel away from the equipment.
When operating the equipment, wear insulation shoes and gloves and take measures to
protect your eyes. Remove conductive objects such as jewelry and watches to avoid
electric shocks or burns.
Ensure that tools are insulated.
This appliance can be used by:
−Children aged from 8 years and above
−People with reduced physical, sensory, or mental capabilities
−People who lack of experience and knowledge
The prerequisite is that they have been given supervision or instruction concerning use of
the appliance in a safe way and understand the hazards involved.
Equipment Safety
Put away the key to the cabinet door during installation, operation, and maintenance.
Only trained and qualified personnel are allowed to use the key.
Before operating the equipment, ensure that the equipment is secured to a floor or
another immovable object such as a wall or mounting rack.
Do not block any ventilation opening when the equipment is in operation.
Tighten screws using a tool when installing a panel.
After the installation is complete, remove packing materials from the equipment area.
Never use water to clean the electrical components in the interior and exterior of the
cabinet.

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1.2 Electrical Safety
High Voltage
The device is powered by a high-voltage power supply. Direct or indirect contact (through
damp or conductive objects) with high-voltage power sources will result in serious injury
or death.
Non-standard and improper high voltage operations may result in fire or electric shocks.
High Leakage Current
Ground the device components and the general ground cable before powering the device on.
Ensure that the ground continuity requirements stipulated in IEC61439-1:2011 is met, and the
ground resistance is 0.1 ohm at most. Otherwise, personal injury or device damage may be
caused by high leakage current.
Cover the exposed parts of cables inside the device with PVC insulation tape and place them
in appropriate positions.
Power Cable
Do not install or remove power cables when the equipment is powered on. Transient contact
between the core wire of a power cable and a conductor may generate electric arcs or sparks,
which may start a fire or cause eye injury.
Turn off the power switch before installing or removing a power cable.
Verify that the label on the power cable is correct before connecting the cable.
To ensure safety, damaged power cables must be replaced by the manufacturer, the
manufacturer's service agent, or similarly qualified persons.
Ensure that the equipment has a mechanism for disconnecting from the main power
supply. Contact intervals must be provided between different levels so that a circuit can
be disconnected under class III overvoltage conditions. Cables for the mechanism must
be incorporated into the fixed wiring based on the wiring rules.
Fuse

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To ensure that the equipment runs safely, replace blown fuses with new fuses of the same
model and specifications.
1.3 Mechanical Safety
Drilling Holes
Do not drill holes into a cabinet without permission. Improper drilling may damage
components, pipes, or cables inside the cabinet. Metal shavings from drilling may block pipes
and cause short circuits in circuit boards if they enter the cabinet.
Only drill with the approval of the customer, contractor, and Huawei.
Remove interior cables before drilling holes into a cabinet.
Wear goggles when drilling holes to protect your eyes from metal shavings.
Wear protective gloves when drilling holes.
After drilling, clean up the metal shavings immediately to prevent them from entering
the cabinet.
Fans
When replacing a component, keep the component, screws, and tools at a safe place. If
any of them falls into running fans, the fans may be damaged.
When replacing a component near fans, do not insert your fingers or boards into the fans
unless the fans are switched off and stop running.
Transportation and Moving
Wear protective gloves when moving devices.
Be careful when moving heavy objects.
Use caution when removing a heavy or unstable device from a cabinet.
Choose railways, sea, or roads with good condition for transportation. Ensure that the
equipment is transported safely and securely. Excessive tilting or jolting during
transportation is not allowed. During transportation, the equipment must not be tilted
more than 15 degrees, as shown in Figure 1-1. During loading and unloading, the
equipment can be tilted 90 degrees in two hours.
Only trained personnel are allowed to move the equipment.
At least two persons are required to move the equipment.

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When moving the equipment, do not use any part of the equipment to support it. This
may damage the equipment.
Use a pallet truck to unload the equipment and its case from the vehicle. The forks must
be properly positioned to ensure that the equipment does not fall over. Secure the
equipment to the pallet truck before moving it, and assign personnel to watch the
equipment during movement.
Move the equipment close to the installation site before unpacking. Unpack the
equipment with caution to avoid scratching or bumping it. Unload the equipment from
the pallet immediately before installation.
Figure 1-1 Transportation gradient
Welding Hazard
At least two persons are required at the welding site.
The welder must have the required licenses for welding.
No flammable materials are allowed in the welding area.
Ensure that fire extinguisher, wet cloth, and water container are available.
Do not place a flaming welding torch on equipment or the ground. To avoid burning
caused by gas leaks, do not put an acetylene and oxygen welding torch inside a metal
container.
Cool down hot pipes immediately after welding them.
Do not weld or cut on pressurized containers or pipes. Disconnect the equipment from
power sources before welding or cutting.
1.4 Operating Safety
High Temperature and High Pressure
Incorrect operations may cause excessive pressure, which may result in breakage or
exploration of the cooling system.

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High-temperature components: compressor, refrigerant pipe, and electric heater.
High-pressure components: compressor and refrigerant pipe.
Refrigerant Hazard
To avoid frostbite caused by refrigerant leaks, take protective measures such as wearing
antifreeze gloves when handling refrigerant.
Low-temperature component: evaporator.
High Rotational Speed
High-speed rotating component: fan.
1.5 Others
Binding Signal Cables
Signal cables must be bound separately from power cables with a spacing of at least 50 mm.
Laying Out Cables
In very low temperatures, violent impacts or vibration may crack the plastic cable jacket. To
ensure safety, comply with the following requirements:
Cables must be laid out and installed only when the temperature is higher than 0°C.
Cables previously stored at subzero temperatures must be stored at room temperature for
at least 24 hours before they are laid out.
Handle cables with caution, especially at a low temperature. Do not drop cables from
vehicles to the ground.
Cables must be routed with a distance of at least 30 mm between the cables and the DC
busbar, shunt, and fuse. This prevents damage to and decelerates deterioration of the
insulation layer of the cables. Cables must be flame-retardant and must not be routed
behind the air inlets or outlets of the cabinet. The air inlets and outlets must not be
blocked.
Storage
Ensure that the equipment is not located near heat sources or directly exposed to
sunlight.
To avoid explosion or refrigerant leaks, keep sources of ignition and high-temperature
objects far away from the equipment. This is especially important for equipment
containing high-pressure nitrogen or refrigerant.

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Recycling
This marking indicates that this product may not be disposed of with other housed
wastes in the European Union's areas. Recycle the product to promote the sustainable reuse of
resources and to avoid possible environment pollution and harm to human health. To recycle
the product, use your local recycling system or contact the retailer where the product was
purchased. The retailer can recycle this product in a safe and environmentally friendly way.
Manual Loss
If you lose this manual, contact Huawei technical support to obtain the electronic document or
download it from http://www.huawei.com.

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2 Product Description
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2 Product Description
This topic describes the NetCol8000-A in terms of its model description, positioning, benefits,
composition, typical application scenarios, environment specifications, and performance
specifications.
2.1 Model Description
The naming rule for the NetCol8000-A series products is as follows.

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Figure 2-1 Naming rule for the NetCol8000-Aseries products
2.2 Composition
The NetCol8000-A consists of an indoor unit, a controller, and an outdoor unit. Composition
of the NetCol8000-A050 is shown in Figure 2-2.

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Figure 2-2 Composition of the NetCol8000-A050
(1) Indoor unit
(2) Display panel
(3) Outdoor unit
The NetCol8000-A100 has dual systems. In the standard configuration of the NetCol8000-A100, one
indoor unit connects to two outdoor units. In the standard configuration of the NetCol8000-A050, one
indoor unit connects to one outdoor unit.
2.2.1 Indoor Unit
Appearance
The NetCol8000-A100 has four front doors and the NetCol8000-A050 has two front doors.
The rear panel and side panels are secured by screws. Figure 2-3shows the NetCol8000-A100
indoor unit, and Figure 2-4 shows the NetCol8000-A050 indoor unit.

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Figure 2-3 NetCol8000-A100D indoor unit
Figure 2-4 NetCol8000-A050D indoor unit
Composition
An indoor unit consists of a cabinet, compressor, evaporator, thermostatic expansion valve,
infrared humidifier, indoor fan (EC), electrical heater, dry filter and air filter.