Huawei NetCol5000-A User manual

NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling
Product
User Manual (600 mm)
Issue
13
Date
2019-01-15
HUAWEI TECHNOLOGIES CO., LTD.

Issue 13 (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

NetCol5000-A(025, 035) In-rowAir Cooled Smart
Cooling Product
User Manual (600 mm)
About This Document
Issue 13 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
ii
About This Document
Purpose
This document applies to the following NetCol5000-A series in-row air cooled smart cooling
product:
NetCol5000-A035: NetCol5000-A035 in-row smart cooling product
NetCol5000-A025: NetCol5000-A025 in-row smart cooling product
NetCol5000-A: both of NetCol5000-A025 and NetCol5000-A035
This document describes the NetCol5000-A, an in-row air cooled smart cooling product, in
terms of its product description, installation guide, commissioning, and operation and
maintenance (O&M).
The figures provided in this document are for reference only.
Intended Audience
This document is intended for:
Sales personnel
Technical support personnel
System engineers
Hardware installation personnel
Commissioning engineers
Data configuration engineers
Maintenance personnel
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.

NetCol5000-A(025, 035) In-rowAir Cooled Smart
Cooling Product
User Manual (600 mm)
About This Document
Issue 13 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
iii
Symbol
Description
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 13 (2019-01-15)
Updated the manual name and so on.
Issue 12 (2018-08-05)
Modified the section of working conditions.
Modified the section of alarm reference.
Issue 11 (2018-03-23)
Added a base drawing.
Issue 10 (2017-05-28)
Modified descriptions about the teamwork networking and monitoring.
Issue 09 (2016-09-15)
Modified the name of the needle.
Issue 08 (2016-06-30)
Added the cable connections for teamwork control in the smart ETH gateway scenario.
Modified descriptions about the leather hose tolerance range and the pipe support.

NetCol5000-A(025, 035) In-rowAir Cooled Smart
Cooling Product
User Manual (600 mm)
About This Document
Issue 13 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
iv
Issue 07 (2016-04-15)
Added the refrigerant charging requirement of NetCol500-A036.
Modified descriptions about the teamwork networking and monitoring, installing enclosure
frames and upper frames, and connecting signal cables.
Issue 06 (2015-07-02)
Modified the requirement of leak checking, vacuuming, and partially charging refrigerant.
Issue 05 (2014-11-27)
Added reducing valve requirement when leak checking.
Issue 04 (2014-10-30)
Modified the following expressions:
Added table 5-9.
A cold aisle temperature and humidity sensor was configured in section 3.1.2.
Issue 03 (2014-09-09)
Modified the expression frame of section 5.
Issue 02 (2014-07-07)
Modified some note descriptions in section 4.4.2.
Issue 01 (2014-05-30)
This issue is the first official release.

NetCol5000-A(025, 035) In-rowAir Cooled Smart
Cooling Product
User Manual (600 mm)
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 ................................................................................................................................................................9
2.2.2 Outdoor Unit............................................................................................................................................................ 11
2.2.3 Controller................................................................................................................................................................. 11
2.2.3.1 Appearance and Ports............................................................................................................................................ 11
2.2.3.2 Functions and Features .........................................................................................................................................14
2.2.4 Monitoring System ..................................................................................................................................................14
2.3 Working Conditions....................................................................................................................................................15
2.4 Technical Specifications .............................................................................................................................................19
3 Installation Guide.......................................................................................................................21
3.1 Installation Preparation...............................................................................................................................................21
3.1.1 Tools ........................................................................................................................................................................21
3.1.2 Material Preparations...............................................................................................................................................24
3.1.2.1 (Optional) Refrigerant R410A..............................................................................................................................25
3.1.2.2 Refrigerant Oil......................................................................................................................................................27
3.1.2.3 Pipe Components..................................................................................................................................................27
3.1.2.4 Humidifier Water Inlet Pipe, Pump Drainpipe, and Automatic Drainpipe............................................................28
3.1.2.5 Pipe Support..........................................................................................................................................................30
3.1.2.6 Cables ...................................................................................................................................................................30
3.1.3 Deployment Principles.............................................................................................................................................31
3.2 Unpacking...................................................................................................................................................................34
3.3 Checking the Air Pressure...........................................................................................................................................34
3.4 Removing the Transport Fixing Sheet Metals.............................................................................................................36

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3.4.1 Removing the Transport Fasteners from Floats .......................................................................................................36
3.4.2 Removing the Transport Fasteners from the Compressor........................................................................................38
3.5 Install Process.............................................................................................................................................................39
3.6 Installing Indoor Units................................................................................................................................................41
3.6.1 Installing an Indoor Unit in Securing Mode ............................................................................................................41
3.6.2 Installing an Indoor Unit in Non-securing Mode.....................................................................................................46
3.7 Installing an Outdoor Unit..........................................................................................................................................47
3.8 Exhausting Nitrogen...................................................................................................................................................47
3.9 Connecting Pipelines ..................................................................................................................................................48
3.9.1 Connecting Refrigerant Pipes..................................................................................................................................49
3.9.2 Connecting Water Pipes...........................................................................................................................................53
3.9.3 Leak Checking.........................................................................................................................................................56
3.10 Installing Cabinet Accessories..................................................................................................................................59
3.10.1 (Optional) Installing an Enclosure Frame..............................................................................................................59
3.10.2 (Optional) Installing the Top Frame.......................................................................................................................61
3.11 Connecting Cables....................................................................................................................................................64
3.11.1 Preparations and Precautions .................................................................................................................................64
3.11.2 Connecting the Power Cable to an Indoor Unit .....................................................................................................64
3.11.3 Installing the Voltage Jumper.................................................................................................................................65
3.11.4 Connecting the Signal Cables ................................................................................................................................65
3.11.4.1 Connecting the Outdoor Unit On/Off Signal Cable ............................................................................................68
3.11.4.2 Connecting Water Sensor....................................................................................................................................68
3.11.5 Teamwork Networking and Monitoring.................................................................................................................70
3.11.6 Installing a Humidity and Temperature Sensor Outside the Cabinet .....................................................................73
3.11.7 Connecting Monitoring Cable from FE Port..........................................................................................................76
3.12 Connections Verification...........................................................................................................................................77
4 ACC Introduction........................................................................................................................80
4.1 Home Screen...............................................................................................................................................................80
4.2 Menu Hierarchy..........................................................................................................................................................81
4.3 Power-On Commissioning..........................................................................................................................................83
4.3.1 Quick Settings..........................................................................................................................................................83
4.3.2 Initial Configuration ................................................................................................................................................83
4.3.2.1 User Right Authentication.....................................................................................................................................84
4.3.2.2 Start and Shutdown...............................................................................................................................................85
4.3.2.3 Setting Temperature and Humidity Values............................................................................................................85
4.3.2.4 Setting Communications Parameters (IPAddress Settings)..................................................................................87
4.3.2.5 Setting Communications Parameters (ModBus Settings) .....................................................................................88
4.3.2.6 Setting SNMP Parameters.....................................................................................................................................90
4.3.2.7 Setting Teamwork Control Parameters .................................................................................................................95
4.3.2.8 (Optional) Setting Alarm Parameters..................................................................................................................102
4.3.3 Commissioning Guide ...........................................................................................................................................104

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4.3.3.1 Entering Diagnostic Mode..................................................................................................................................104
4.3.3.2 Commissioning Smart Cooling Product Components ........................................................................................105
4.4 Maintenance Guide...................................................................................................................................................106
4.4.1 Querying Parameters..............................................................................................................................................106
4.4.1.1 Querying Temperature and Humidity Curves.....................................................................................................106
4.4.1.2 Querying Alarms.................................................................................................................................................107
4.4.1.3 Querying Logs ....................................................................................................................................................109
4.4.1.4 Querying Device Runtime ..................................................................................................................................109
4.4.1.5 Querying Component Status............................................................................................................................... 110
4.4.1.6 Querying System Parameters.............................................................................................................................. 111
4.4.1.7 Querying Version Details.................................................................................................................................... 112
4.4.2 Changing Parameters............................................................................................................................................. 113
4.4.2.1 Deleting Historical Alarms ................................................................................................................................. 113
4.4.2.2 Deleting Logs......................................................................................................................................................113
4.4.2.3 Exporting Data.................................................................................................................................................... 114
4.4.2.4 Clearing the Runtime..........................................................................................................................................116
4.4.2.5 Calibrating a Sensor............................................................................................................................................ 117
4.4.2.6 Calibrating the Screen.........................................................................................................................................117
4.5 FAQ .......................................................................................................................................................................... 119
4.5.1 How to Perform Quick Settings............................................................................................................................. 119
4.5.2 How to Set the Language, Date, or Time...............................................................................................................120
4.5.3 How to Change a Password ...................................................................................................................................120
4.5.4 Restoring Factory Settings.....................................................................................................................................122
4.5.5 How to Troubleshoot the Fault When the System Is in Upgrade Mode.................................................................124
4.5.6 How to Fast Shut Down an Smart Cooling Product ..............................................................................................124
4.5.7 How to Manually Clear Alarms .............................................................................................................................125
4.5.8 How to Enable a Humidity and Temperature Sensor.............................................................................................125
4.5.9 How to Check Teamwork Control Information .....................................................................................................126
4.5.10 Which Parameters Are Restored to Default Values After Default Settings Are Operated....................................127
4.5.11 How to Change the SSH Access Password ..........................................................................................................127
4.5.12 Rectifying Faults of the E-label Identification Board..........................................................................................130
4.5.13 Importing a Certificate and Key ..........................................................................................................................131
4.5.14 Powering Off and Maintaining a Smart Cooling Product in iCooling Linkage Mode.........................................132
5 Power-On Commissioning......................................................................................................134
5.1 Commissioning Tools ...............................................................................................................................................134
5.2 Vacuumizing and Charging in Refrigerant................................................................................................................134
5.2.1 Calculation about the Charged the Refrigerant and Refrigerant Oil......................................................................134
5.2.2 (Optional) Charging in Refrigerant Oil..................................................................................................................136
5.2.3 Vacuumizing ..........................................................................................................................................................138
5.2.4 Partially Charging Refrigerant...............................................................................................................................141
5.3 Commissioning Preparations....................................................................................................................................142

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5.3.1 Checking Before Power-on....................................................................................................................................142
5.3.2 Circuit Breakers.....................................................................................................................................................142
5.3.3 Power-On...............................................................................................................................................................143
5.4 Initial Configuration .................................................................................................................................................144
5.5 Commissioning Procedure........................................................................................................................................144
5.6 Checking After Commissioning................................................................................................................................148
5.7 Power Off..................................................................................................................................................................149
6 System Operation and Maintenance.....................................................................................150
6.1 Maintenance Components.........................................................................................................................................150
6.2 Routine Maintenance................................................................................................................................................151
6.2.1 Routine Maintenance Overview ............................................................................................................................151
6.2.2 Maintenance Tools.................................................................................................................................................152
6.2.3 Data Record...........................................................................................................................................................152
6.2.4 Monthly Maintenance............................................................................................................................................153
6.2.5 Quarterly Maintenance ..........................................................................................................................................155
6.2.6 Yearly Maintenance ...............................................................................................................................................156
6.3 Alarm Reference.......................................................................................................................................................157
6.4 Troubleshooting........................................................................................................................................................181
6.5 Parts Replacement ....................................................................................................................................................186
6.5.1 Replacing Filters....................................................................................................................................................186
6.5.2 Replacing a Indoor Fan..........................................................................................................................................187
6.5.3 Replacing a Compressor........................................................................................................................................189
6.5.4 Replacing Compressor Drive.................................................................................................................................192
6.5.4.1 Replacing a Huawei Compressor Drive..............................................................................................................192
6.5.4.2 Replacing a Danfoss Compressor Drive.............................................................................................................197
6.5.5 Replacing Condensate Pump .................................................................................................................................199
6.5.6 Replacing Humidifier Cylinder..............................................................................................................................201
6.5.7 Replacing Electric Heater ......................................................................................................................................204
A Electrical Ports of an Indoor Unit .........................................................................................205
B General Layout..........................................................................................................................207
C Acronyms and Abbreviations................................................................................................209
D Electric Diagram.......................................................................................................................211
E Main Control Board Diagram.................................................................................................212
F Humidifier Control Diagram..................................................................................................213
G Controller Menu Structure.....................................................................................................214

NetCol5000-A(025, 035) In-rowAir Cooled Smart
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User Manual (600 mm)
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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User Manual (600 mm)
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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
2.1 Model Description
Figure 2-1 shows the naming rule for the NetCol5000-Aseries products.
Figure 2-1 Naming rule

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User Manual (600 mm)
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2.2 Composition
The NetCol5000-A operates as follows: Fans absorb indoor hot air that then moves to the
evaporator with heat transmitted to the refrigerant. The refrigerant is discharged to the outdoor
unit by the compressor, releasing heat to the outdoor environment. The indoor unit and
outdoor condenser are interconnected and circulate using the refrigerant pipes in a sealing
manner. The NetCol5000-A consists of an indoor unit and an outdoor unit (the
NetCol500-A072 is used as an example), as shown in Figure 2-2.
Figure 2-2 Product components
(1) NetCol5000-A
(2) NetCol500-A072
2.2.1 Indoor Unit
Appearance
Figure 2-3 shows the NetCol5000-A indoor unit.

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Figure 2-3 Appearance
Table 2-1 describes the four optional dimensions of the NetCol5000-A indoor unit.
Table 2-1 Dimensions
Dimensions
H x W x D
Standard configuration
2000 mm x 600 mm x 1100 mm
Expansion mode 1
2000 mm x 600 mm x 1200 mm
Expansion mode 2
2200 mm x 600 mm x 1100 mm
Expansion mode 3
2200 mm x 600 mm x 1200 mm
Components
The indoor unit consists of a compressor, EC fan, evaporator, air filter, electric heater
(optional), electrode humidifier (optional), and condensate pump (optional).
Compressor
The indoor unit uses the advanced DC frequency-converting scroll compressor to adapt
to broad working conditions. The compressor features good environment adaptability,
stepless frequency adjustment, precise temperature control, energy conservation, high
reliability, low noise, long service timlife, and easy installation. The R410A refrigerant
used is environmentally friendly.

NetCol5000-A(025, 035) In-rowAir Cooled Smart
Cooling Product
User Manual (600 mm)
2 Product Description
Issue 13 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
11
EC fan
The indoor curves EC retroverted centrifugal fan from a high-end German brand
conserves 40% more energy than common fans and features redundancy design, high
reliability, and long service life.
Evaporator
The highly efficient finned-tube evaporator is made of threaded copper tubes and a
hydrogen-plated layer and adopts the computational fluid dynamics (CFD) to improve
heat exchange efficiency.
Air filter
The G4 air filter meets requirements for equipment room cleanness.
Electric heater
The positive temperature coefficient (PTC) heater automatically adjusts heating capacity
and provides multiple protection mechanisms to ensure operating security and reliability.
The electric heater features quick start, large heating capacity, and even heating.
Electrode humidifier
The electrode humidifier provides stepless adjustment of humidification capacity and
precise control of humidity in the equipment room.
Condensate pump
The condensate pump is made of thermostable materials which ensure that the
condensate water and hot water from the humidifier are exhausted efficiently. The pump
lift is 3.5 m. Two floats are used to improve reliability.
2.2.2 Outdoor Unit
For details about the outdoor unit, see the NetCol500 Variable-frequency Drive Outdoor Unit
User Manual.
2.2.3 Controller
2.2.3.1 Appearance and Ports
Appearance
The controller provides a 7-inch true color touchscreen and man-machine interfaces for query,
setting, monitoring, and maintenance.
The indicator on the panel displays operating status of the smart cooling product. Figure 2-4
shows the position of the indicator. Table 2-2 describes the mapping between indicators,
buzzers, and alarms. If alarms of different severities (critical, major, minor, or warning) are
raised simultaneously, the indicator status corresponds to the alarm with the highest severity
level and the buzzer status corresponds to the unacknowledged alarm with the highest severity
level.