Huawei NetCol8000-E220 User manual

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Issue
02
Date
2019-10-10
HUAWEI TECHNOLOGIES CO., LTD.

Issue 02 (2019-10-10)
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:
https://e.huawei.com

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About This Document
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About This Document
Purpose
This document describes the NetCol8000-E modular indirect evaporation cooling system in
terms of its product overview, installation, power-on commissioning, operation and
maintenance (O&M). It helps readers understand how to use and maintain the NetCol8000-E.
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 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.
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.

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Symbol
Description
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
Changes between document issues are cumulative. The latest document issue contains all the
changes made in earlier issues.
Issue 02 (2019-10-10)
Added web information.
Updata the LCD figures.
Issue 01 (2019-05-31)
This issue is the first official release.

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Contents
About This Document.................................................................................................................... ii
1 Safety Precautions.........................................................................................................................1
1.1 General Safety ..............................................................................................................................................................1
1.2 Electrical Safety............................................................................................................................................................2
1.3 Mechanical Safety ........................................................................................................................................................4
1.4 Operating Safety...........................................................................................................................................................4
1.5 Others............................................................................................................................................................................5
2 Product Description......................................................................................................................6
2.1 Model Number Description ..........................................................................................................................................6
2.2 Product Composition ....................................................................................................................................................7
2.2.1 Dimensions................................................................................................................................................................7
2.2.2 Physical Ports.............................................................................................................................................................8
2.2.3 Controller...................................................................................................................................................................9
2.2.4 (Optional) Air Channel ............................................................................................................................................12
2.3 Working Modes...........................................................................................................................................................12
2.4 Operating Environment Specifications.......................................................................................................................14
2.5 Technical Specifications .............................................................................................................................................16
3 Installation Guide.......................................................................................................................18
3.1 Installation Precautions...............................................................................................................................................18
3.2 Material Preparations..................................................................................................................................................20
3.2.1 (Optional) Refrigerant R410A.................................................................................................................................20
3.2.2 Water Refill Pipe and Drainpipe ..............................................................................................................................21
3.2.3 Pipe Support.............................................................................................................................................................22
3.2.4 Cable........................................................................................................................................................................22
3.3 (Optional) Concrete Platform Scenario ......................................................................................................................24
3.4 (Optional) Steel Base Scenario...................................................................................................................................28
3.5 Unpacking...................................................................................................................................................................32
3.5.1 Remove the Packaging.............................................................................................................................................32
3.5.2 Checking Fittings.....................................................................................................................................................32
3.5.3 Checking the Nitrogen Pressure...............................................................................................................................33
3.6 Grounding the NetCol8000-E.....................................................................................................................................33
3.7 Installing a Supply Air Duct .......................................................................................................................................35

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3.8 Installing a Return Air Duct........................................................................................................................................40
3.9 Connecting Water Pipes..............................................................................................................................................40
3.10 Vacuumizing .............................................................................................................................................................45
3.11 Precharging Refrigerant............................................................................................................................................47
3.12 Connecting Cables....................................................................................................................................................48
3.12.1 Precautions.............................................................................................................................................................48
3.12.2 Connecting the Power Cable..................................................................................................................................50
3.12.3 (Optional) Connecting the Signal Cables...............................................................................................................53
3.12.4 Teamwork Networking and Monitoring.................................................................................................................55
3.12.4.1 Main Control Module .........................................................................................................................................55
3.12.4.2 Connecting the Teamwork Network Cable.........................................................................................................56
3.12.4.3 Connecting the Monitoring Network Cable........................................................................................................57
3.12.5 (Optional) Connecting the T/H Sensor Outside the Cabinet..................................................................................59
3.13 Removing the Transport Fasteners and Protective Covers........................................................................................61
3.14 Verifying Installation ................................................................................................................................................65
4 Power-on and Commissioning .................................................................................................68
4.1 Preparing for Power-On..............................................................................................................................................68
4.2 Power-On....................................................................................................................................................................68
4.3 Home Screen...............................................................................................................................................................74
4.4 Initial Configuration ...................................................................................................................................................76
4.4.1 Setting Temperature and Humidity Values and Enabling T/H Sensors....................................................................76
4.4.2 Setting Communications Parameters .......................................................................................................................78
4.4.2.1 Setting Communications Parameters (Modbus RTU Protocol) ............................................................................78
4.4.2.2 Setting Communications Parameters (Modbus TCP Protocol).............................................................................79
4.4.2.3 Setting Communications Parameters (SNMP Protocol) .......................................................................................81
4.4.3 (Optional) Setting WIFI Parameters ........................................................................................................................85
4.4.4 Setting Teamwork Control Parameters ....................................................................................................................86
4.5 Startup.........................................................................................................................................................................92
4.6 Charging the Remaining Refrigerant..........................................................................................................................95
4.7 Wizard Startup ............................................................................................................................................................96
4.8 (Optional) Power-off...................................................................................................................................................98
4.9 Checking After Commissioning..................................................................................................................................98
5 WebUI............................................................................................................................................99
5.1 Preparations and WebUI Login...................................................................................................................................99
5.2 WebUI Introduction ..................................................................................................................................................102
6 System Operation and Maintenance.....................................................................................104
6.1 Routine Maintenance Overview ...............................................................................................................................104
6.2 Routine Maintenance................................................................................................................................................105
6.2.1 Monthly Maintenance............................................................................................................................................106
6.2.2 Quarterly Maintenance ..........................................................................................................................................108
6.2.3 Yearly Maintenance ...............................................................................................................................................108

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6.3 Troubleshooting........................................................................................................................................................ 110
6.4 Alarm Reference....................................................................................................................................................... 116
6.5 Parts Replacement ....................................................................................................................................................157
6.5.1 Replacing the Air Filter..........................................................................................................................................157
6.5.2 Replacing the Fan ..................................................................................................................................................158
6.5.3 Replacing the Differential Pressure Switch ...........................................................................................................161
6.5.4 Replacing the Compressor.....................................................................................................................................162
6.5.5 Replacing the Driver..............................................................................................................................................165
6.5.6 Replacing the Float................................................................................................................................................166
6.5.7 Replacing the Pump...............................................................................................................................................168
6.5.8 Replacing the Switch .............................................................................................................................................169
6.5.9 Replacing the Contactor.........................................................................................................................................170
6.5.10 Replacing the SPD...............................................................................................................................................171
6.5.11 Replacing the Relay.............................................................................................................................................171
6.5.12 Replacing the Fuse...............................................................................................................................................172
6.5.13 Replacing the Thermorelay..................................................................................................................................172
6.5.14 Replacing the T/H Sensor....................................................................................................................................173
7 FAQ..............................................................................................................................................175
7.1 Operations on the LCD.............................................................................................................................................175
7.1.1 Querying Temperature and Humidity Curves........................................................................................................175
7.1.2 Querying Logs .......................................................................................................................................................176
7.1.3 Querying Component Status..................................................................................................................................176
7.1.4 Querying System Parameters.................................................................................................................................176
7.1.5 Querying Version Details.......................................................................................................................................177
7.1.6 How to View Teamwork Control Information .......................................................................................................177
7.1.7 How to Silence the Buzzer.....................................................................................................................................177
7.1.8 How Can I Handle Active Alarms?........................................................................................................................178
7.1.9 Deleting Historical Alarms ....................................................................................................................................179
7.1.10 Deleting Logs.......................................................................................................................................................180
7.1.11 Clearing the Runtime...........................................................................................................................................180
7.1.12 Calibrating a Sensor.............................................................................................................................................180
7.1.13 How to Modify a Password .................................................................................................................................181
7.1.14 How to Set Alarm Parameters..............................................................................................................................182
7.1.15 How to Commission Single Component..............................................................................................................184
7.1.16 Which Parameters Are Restored to Default Values After Default Settings Are Operated....................................185
7.1.17 Exporting Data.....................................................................................................................................................185
7.1.18 How to Export and Import a Configuration file...................................................................................................186
7.1.19 How to Import a Certificate and a Key................................................................................................................189
7.2 WebUI Operations ....................................................................................................................................................190
7.2.1 How to Manage WebUI Users ...............................................................................................................................190
7.2.2 How to Install a Network Security Certificate.......................................................................................................192

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7.2.3 How Can I View Active Alarms and Historical Alarms.........................................................................................192
7.2.4 How Can I Export or Import a Configuration File.................................................................................................193
7.2.5 How Can I Export Fault Information.....................................................................................................................193
7.2.6 How Can I Change the Smart Cooling Product IPAddress on the WebUI............................................................194
7.2.7 How Can I View Version Information ...................................................................................................................194
A Cleaning the NetCol8000-E ....................................................................................................195
B Maximum Water Consumption .............................................................................................196
C Cooling Component Layout...................................................................................................198
D Electric Diagram.......................................................................................................................199
E Acronyms and Abbreviations ................................................................................................206

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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.
Equipment Safety
Do not block any ventilation opening when the equipment is in operation.
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.
1.2 Electrical Safety
High Voltage

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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
To ensure that the equipment runs safely, replace blown fuses with new fuses of the same
model and specifications.

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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
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.
Only trained personnel are allowed to move the equipment.
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.
High-temperature and high-pressure components: compressor, 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.

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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
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.
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 Number Description
Figure 2-1 NetCol8000-E model number description

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2.2 Product Composition
2.2.1 Dimensions
Figure 2-2 Appearance
Figure 2-3 Component description (external)
(1) Outdoor air
outlet port
(2) Electric control
box
(3) Display
(4) No. 1st
maintenance door
(5) Condensate
drainpipe 1
(6) No. 2nd
maintenance door
(7) Condensate
drainpipe 2
(8) Spray drainpipe

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(9) Spray water
refill pipe
(10) Side air return
port
(11) No. 3rd
maintenance door
Figure 2-4 Component description (internal)
(1) Outdoor air outlet
port
(2) Electric
control box
(3) Indoor air
supply port
(4) Indoor fan
(5) Evaporator
(6) Gas-liquid
separator
(7) Compressor
(8) Pump
(9) Water inlet and
outlet electric valve
(10) Water tank
(11) Water
spraying system
(12) Outdoor fresh air
inlet port (on the side)
(13) Outdoor fresh air
inlet port (at the end)
(14) Indoor air
return port
(15) Indoor air
return port
(16) Condenser
(17) Exhaust fan
(18) Light
2.2.2 Physical Ports
Table 2-1 Physical ports of air vent and water pipe
Type
Name
Dimensions
Quantity
Air vent
Outdoor fresh air inlet port (at the
end)
2130 mm x 1310 mm
1

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Type
Name
Dimensions
Quantity
Outdoor fresh air inlet port (on the
side)
500 mm x 1200 mm
2
Outdoor air outlet port
2130 mm x 1310 mm
1
Indoor air return port
2130 mm x 1310 mm
1
Indoor air supply port
800 mm x 2000 mm
1
Water pipe
Spray water refill pipe
DN20
1
Spray drainpipe
DN40
1
Condensate drainpipe
DN20
2
2.2.3 Controller
Appearance
The controller provides a 7-inch true color touchscreen and the man-machine interface for
query, setting, monitoring, and maintenance.
The indicator on the panel displays operating status of the device. Figure 2-5 shows the
position of the indicator. Table 2-2 lists the relationship between alarm states, indicators, and
buzzer. 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.
Figure 2-5 Position of the indicator
(1) Indicator
(2) USBa(Universal Serial Bus, reserved)

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(3) I2C/I2V (reserved)
(4) DP (display port)
(5) SW (reserved)
a: USB has the following functions:
After installing the WiFi module, connect the WiFi module to the smart cooling product using the
app on the mobile phone to obtain the initial startup password.
Insert the USB flash drive, import and export the configuration file, export run logs, and upgrade
software.
Table 2-2 Indicator and buzzer status
Operating Status
Indicator
Buzzer
The device is operating properly, or a
warning has been generated.
Green
No buzzing
There is an unacknowledged major
alarm.
Yellow
Intermittent buzzing
There is an unacknowledged critical
alarm.
Red
Constant buzzing
Note: The indicator for the preceding three states blinks at a frequency of 1 Hz, that is, 0.5s
on and 0.5s off.
Functions
Single unit control: Each device has an independent control system, LCD, and
temperature and humidity (T/H) sensor to ensure its normal operating and high-precision
operating.
Operation display: You can set parameters for the device and query its status on the
7-inch true-color touchscreen.
Three remote functions:
−Telemetry: supply air temperature, return air temperature, supply air humidity,
return air humidity, and working status of the unit
−Teleindication: startup/shutdown status, overvoltage/undervoltage,
overcurrent/undercurrent, return air overtemperature/undertemperature, return air
overhumidity/underhumidity, air filter normal/blocked, and fan normal/fault
−Telecontrol: startup/shutdown
Teamwork control: Up to 32 devices can be networked for teamwork. When multiple
devices work collaboratively, heat load is optimally allocated to reduce power
consumption and backup is provided to improve reliability.
−Backup: automatic switchover. When a single device in the group is faulty, the
backup device starts to operate automatically to improve the reliability of the
system.
−Rotation: Each device enters the active mode one by one periodically.

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−Cascade: The number of operating devices varies depending on the thermal load in
equipment room to meet requirements promptly, eliminate hot spots, and save
energy.
−Anti-competitive operation: A mechanism is adopted to prevent devices in the same
equipment room operating in opposite status, in order to save energy.
−Self-teamwork control: If one of the communications cables in the teamwork
network is disconnected, two teamwork networks are formed. Devices without a
master can automatically determine the master one and continue teamwork control.
Remote management: You can monitor and manage one or more devices using the
remote management function provided by Huawei.
Provides a large space for recording and storing fault and alarm data. A minimum of
1500 historical alarms can be stored.
Provides access log backtracking. At least 1000 historical login and setting records can
be stored.
Displays 30-day temperature and humidity in colored curves and 30-day differential
pressure of supply air and return air (differential pressure control function is required) in
colored curves. Operation and maintenance (O&M) personnel can view the operating
status onsite.
Provides a comprehensive power monitoring function. Faults such as power reverse
phase, open phase, overvoltage, undervoltage, high frequency, and low frequency are
diagnosed and appropriate alarms are reported and recorded. The controller also provides
automatic protection, recovery, and restart.
Highlights
The controller provides a touchscreen with a user-friendly interface.
The controller is highly precise and responsive.
The controller is protected by a multi-level password protection mechanism to avoid
misoperation.
Password verification is required upon the first startup to ensure the system security. No
password verification is required for subsequent startup if the first verification succeeds.
The controller provides functions such as automatic recovery after power failure and
water leakage detection, improving the system reliability.
The cooling capacity, air volume, as well as the operating status and time of each
component in the device are displayed on the LCD in real time.
The controller provides abundant external ports such as FE ports, CAN ports, RS485
ports, and USB ports that are protected by a security mechanism. These ports flexibly
meet the communication requirements and feature good electrical isolation.
Information can be displayed on the LCD in twelve languages: Chinese, English, French,
Spanish, Russian, Turkish, and so on.
The O&M personnel can export fault records in one-click mode, making it easy to
operate the device and learn the running status of the device.
The device supports communications protocols such as Modbus RTU, Modbus TCP, and
SNMP, facilitating connection to the network management system.
Intelligently identifies abnormal parameter settings (incorrect commands) and
automatically rejects them.
The controller automatically sends an audible and visible alarm signal if the indoor
temperature fluctuates beyond the normal range.

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2.2.4 (Optional) Air Channel
Figure 2-6 Appearance
Table 2-3 Technical Specifications
Name
Parameter
Dimensions (H x W x D)
5647 mm x 2020 mm x 840 mm
2.3 Working Modes
Table 2-4 Cooling mode
Cooling mode
Fan
Water pump
Compressor
Dry mode (fan)
On
Off
Off
Wet mode (fan + spraying)
On
On
Off
Dry mode+Auxiliary cooling
mode (fan + compressor
cooling)
On
Off
On
Wet mode+Auxiliary cooling
mode (fan + spraying +
compressor cooling)
On
On
On