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Huawei NetCol5000-A021 User Manual

In-row air cooled smart cooling product
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NetCol5000-A021 In-row Air Cooled Smart
Cooling Product
User Manual (208 V)
Issue
03
Date
2020-01-10
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei NetCol5000-A021

  • Page 1 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) Issue Date 2020-01-10 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 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"...

  • Page 3: About This Document

    About This Document Purpose This document describes the NetCol5000-A021, a in-row air cooled smart cooling product (NetCol5000-A for short), in terms of its precautions, product description, installation guide, commissioning, operation and maintenance (O&M). It helps users rapidly learn the operation and maintenance (O&M) of the NetCol5000-A.
  • Page 4 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) About This Document Symbol Description loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury. Supplements the important information in the main text.

  • Page 5: Table Of Contents

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) Contents Contents About This Document ........................ii 1 Safety Information ........................1 1.1 General Safety ................................1 1.2 Personnel Requirements ............................... 4 1.3 Electrical Safety ................................4 1.4 Installation Environment Requirements ........................6 1.5 Mechanical Safety ................................
  • Page 6 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) Contents 3.1.5 Installation Layout Principles ..........................35 3.2 Unpacking ................................... 37 3.3 Checking Nitrogen Pressure ............................38 3.4 Removing the Cabinet Sheet Metal Fasteners ......................40 3.5 Installing the Cabinet Transport Tool .......................... 41 3.6 Removing the Transport Sheet Metal Fasteners ......................
  • Page 7 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) Contents 4.3.2.5 Setting Teamwork Control Parameters ......................... 96 4.3.2.6 (Optional) Setting Alarm Parameters ........................103 4.3.3 Commissioning Guide ............................105 4.3.3.1 Entering Diagnostic Mode ..........................105 4.3.3.2 Commissioning Smart Cooling Product Components ..................106 4.4 Maintenance Guide ..............................
  • Page 8 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) Contents 5.2.4 Partially Charging in Refrigerant ........................... 136 5.3 Preparing for Power-On ............................138 5.4 Powering On the Equipment ............................. 139 5.5 Commissioning Procedure ............................139 5.6 Powering Off the Equipment ............................ 142 6 System Operation and Maintenance ..................

  • Page 9: Safety Information

    The"NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this document do not cover all the safety instructions. They are only supplements to the safety instructions. Huawei will not be liable for any consequence caused by the violation of general safety requirements or design, production, and usage safety standards.
  • Page 10 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 1 Safety Information  Before installing, operating, or maintaining the equipment, remove any conductive objects such as watches or metal jewelry like bracelets, bangles, and rings to avoid electric shock.
  • Page 11 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 1 Safety Information  All cable holes should be sealed. Seal the used cable holes with firestop putty. Seal the unused cable holes with the caps delivered with the cabinet. The following figure shows the criteria for correct sealing with firestop putty.

  • Page 12: Personnel Requirements

    Do not power on the equipment before it is installed or confirmed by professionals. 1.2 Personnel Requirements  Personnel who plan to install or maintain Huawei equipment must receive thorough training, understand all necessary safety precautions, and be able to correctly perform all operations.
  • Page 13 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 1 Safety Information Do not connect or disconnect power cables with power on. Transient contact between the core of the power cable and the conductor will generate electric arcs or sparks, which may cause fire or personal injury.

  • Page 14: Installation Environment Requirements

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 1 Safety Information  Wear ESD gloves or a well-grounded ESD wrist strap when touching the device or handling boards or application-specific integrated circuits (ASICs).  When holding a board, hold its edge without touching any components. Do not touch the components with your bare hands.

  • Page 15: Mechanical Safety

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 1 Safety Information Installation at Heights  Working at heights refers to operations that are performed at least 2 meters above the ground.  Do not work at heights if the steel pipes are wet or other potential danger exists. After the preceding conditions no longer exist, the safety director and relevant technical personnel need to check the involved equipment.
  • Page 16 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 1 Safety Information  Do not drag steel ropes and hoisting tools or bump hoisted objects against hard objects during hoisting. Using Ladders  Use wooden or fiberglass ladders when you need to perform live working at heights.
  • Page 17 Metal shavings from drilling may short-circuit boards inside the equipment.  Obtain the consent from the customer, subcontractor, and Huawei before drilling.  Wear goggles and protective gloves when drilling holes. ...

  • Page 18: Cooling System Safety

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 1 Safety Information 1.6 Cooling System Safety Welding  At least two persons are required on a welding site.  A welder must have a work permit.  A welding site must be free from inflammables.

  • Page 19: Product Description

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description Product Description 2.1 Model Description Figure 2-1 shows the designation explanation for the NetCol5000-A. Figure 2-1 Designation explanation for the NetCol5000-A Issue 03 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 20: Indoor Unit Components

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description 2.2 Indoor Unit Components Dimensions Dimensions (H x W x D) of the NetCol5000-A in standard configurations are 2000 mm x 300 mm x 1100 mm, as shown in Figure 2-2.

  • Page 21: Controller

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description  One-way valve The one-way valve efficiently controls backflow of gas or liquid.  Filter dryer The filter dryer absorbs moisture from refrigerant pipes and filters out foreign matter, which reduces the component damage probability and ensures efficient and reliable operating of components.
  • Page 22 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description Figure 2-3 Display panel (1) Indicator (2) Display panel Table 2-1 Indicator and buzzer status description Alarm Status Indicator Buzzer The device is operating properly, or a...
  • Page 23 (Applicable to V200R001C20 and later versions) NOTE Only Huawei service engineers or authorized service engineers are allowed to use the WiFi module. To ensure security, remove the WiFi module immediately after use. ...

  • Page 24: Function And Features

    Teleadjusting: temperature, humidity, and alarm threshold.  Remote management: You can monitor, manage, and upgrade one or more smart cooling products using the remote management function provided by Huawei.  Faults and alarms are recorded and stored. Up to 1500 historical fault and alarm records can be stored.

  • Page 25: Monitoring System

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description 2.4 Monitoring System The monitoring system provides logical control, data collection, control command delivery, alarm reporting, data storage, user right management, and teamwork control. Smart cooling products can interwork with the user's monitoring system over an RS485 port or FE port on the monitoring system.
  • Page 26 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description Figure 2-6 FE monitoring network diagram Figure 2-7 CAN teamwork network diagram Issue 03 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 27: Application Environment

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description Figure 2-8 FE teamwork network diagram 2.5 Application Environment Table 2-3 lists the environmental specifications. Table 2-4 lists the physical ports. Table 2-5 lists the installation requirements.
  • Page 28 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description Physical Ports Table 2-4 Physical ports Item Specifications Refrigerant liquid pipe Copper pipe, with an outer diameter of 5/8 inch (15.88 mm) and thickness of 1.0 mm, withstanding a pressure not smaller than 4.5 MPa, welding.

  • Page 29: Technical Specifications

    (RCCB) that is not sensitive to the single–phase DC pulse and transient current pulse. Note: If some conditions are not met, please contact Huawei technical support. Water Quality Requirements If the inlet water contains large granules, install a water filtering device at the inlet port to prevent pipe blockage.
  • Page 30 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 2 Product Description  For a smart cooling product with heating and humidification functions in the active route, the general circuit breaker is a 63 A, feature D circuit breaker.

  • Page 31: Installation Guide

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Installation Guide 3.1 Installation Preparations To ensure the optimal operating effect and longest service life, install the NetCol5000-A correctly as required. 3.1.1 Preparing Tools Table 3-1 Table 3-5 list the tools for installing the NetCol5000-A.
  • Page 32 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Appearance, Specifications, and Name Step ladder (2 m) Torch Measuring tape Hacksaw Table 3-2 Transportation and unpacking tools Appearance, Specifications, and Name Pallet Jack Diesel pallet truck...
  • Page 33 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Appearance, Specifications, and Name able to resist temperatures higher than 85° C and the following requirements are met.  It applies to all pipe materials. ...

  • Page 34: Material Preparations

     Optional: materials that can be purchased from Huawei or any other vendor (if you have ordered the materials from Huawei, you do not need to purchase them elsewhere). For details about the specifications of such materials to be purchased, see the following sections.
  • Page 35 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Contact the refrigerant producer to confirm the refrigerant authenticity. Check the refrigerant by following the steps shown in Figure 3-1: Keep the refrigerant indoors at a constant temperature and humidity for 24 hours. Use a thermometer to measure the external surface temperature of the refrigerant container, and connect a pressure gauge to the container to measure its internal pressure.

  • Page 36: Optional) Refrigerant Oil

    1.27 2.15 3.1.2.2 (Optional) Refrigerant Oil The recommended refrigerant oil is RL32H/Emkarate. You can purchase it from Huawei or another vendor. The refrigerant oil purchased from another vendor should be confirmed by Huawei. 3.1.2.3 (Optional) Oil Trap and Inverted Trap The operating pressure of the copper pipe, oil trap, and inverted trap should be greater than 4.5 MPa.

  • Page 37: Humidifier Water Inlet Pipe

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Name Copper Pipe Outer Technical Requirements Diameter and Thickness Gas pipe 19.1 mm x 1.2 mm Inner diameter of flared ends of the inverted copper pipes 19.1 mm.

  • Page 38: Drainpipe

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide The object shown in the dotted line box is the water inlet pipe connector with inner screw threads delivered with smart cooling products. The hose clamp as shown by (5) in the preceding figure is provided in standard configuration.

  • Page 39: Pipe Support

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide 3.1.2.6 Pipe Support Figure 3-5 shows a support for refrigerant pipes and water pipes. The specific support appearance depends on site situations. Figure 3-5 Pipe support (unit: mm) U-shaped pipe clamp height H = Pipe diameter (including the thermal insulation foam) –...
  • Page 40 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Application Name Technical Specifications Description Scenario core wires: red, yellow, green, blue, power supply: 1 humidification black), 46 A, outdoor cable, CE, 32 M6/OT Active route...

  • Page 41: Engineering Procurement) Water Softener

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Application Name Technical Specifications Description Scenario communications cable Insertion Depth 6 mm, 2 A, Light blue Teamwork Standard network cable Symmetric twisted-pair cable, 100 1 PCS (10 m)

  • Page 42: Precautions

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  The equipment room should have good heat insulation, and the walls and floor should be protected against moisture.  Take care to prevent the components and cables from damage.

  • Page 43: Installation Layout Principles

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-7 External structure (unit: mm) (1) Connecting kits (2) Control panel (3) Door lock (4) Front door (5) Fixing port (6) Side panel (7) Leveling foot (8) Rear door In the figure, D is the depth of the cabinet.
  • Page 44 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  When calculating the height difference, the compressor base is regarded as the baseline for the indoor unit.  The inverted trap should be higher than the top copper pipe of the condenser.

  • Page 45: Unpacking

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-9 Routing pipes from the top (1) Inverted traps (2) Oil traps (3) Tilted gas pipe (4) Tilted liquid pipe 3.2 Unpacking Procedure Step 1 Inspect the outer packing for signs of damage. If any damage is found, contact the shipping company immediately.

  • Page 46: Checking Nitrogen Pressure

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-10 Unpacking Inspect the cabinet exterior for signs of collision or scratches. If any damage is found, contact the shipping company immediately. Step 3 Check the type and quantity of fittings against the packing list. If fittings are missing or inconsistent with those in the packing list, record the information and contact your local Huawei office immediately.
  • Page 47 If they do not exist, contact Huawei technical support.  If they exist, remove each valve bonnet and use it to press the valve plugs in turn. If air is exhausted, the system is working properly. If no air is exhausted, contact Huawei technical support. Issue 03 (2020-01-10)

  • Page 48: Removing The Cabinet Sheet Metal Fasteners

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-12 Needle valves (1) Low-pressure needle (2) Liquid pipe needle (3) Discharge pipe needle valve valve valve ----End 3.4 Removing the Cabinet Sheet Metal Fasteners...

  • Page 49: Installing The Cabinet Transport Tool

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-13 Removing bolts from the cabinet sheet metal fasteners 3.5 Installing the Cabinet Transport Tool Prerequisites The cabinet has been removed from the pallet. Context At least two persons are assigned to transport the cabinet.
  • Page 50 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-14 Cabinet transport tool (1) Cover bolt (2) Cover side hole (aligned (3) Cover side hole (aligned (removed before with the cabinet mounting hole with the cabinet mounting hole...
  • Page 51 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-16 Installing a transport tool Step 3 Reinstall the removed cover using M8x50 bolts, as shown by (1) in Figure 3-17. Figure 3-17 Reinstalling the cover on a transport tool Secure the transport tool to the cabinet through the hole near the cabinet door.

  • Page 52: Removing The Transport Sheet Metal Fasteners

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide 3.6 Removing the Transport Sheet Metal Fasteners Context  When moving a cabinet, take measures to prevent it from toppling.  The two compressor sheet metal fasteners and one liquid level detector sheet metal fastener installed for transport protection must be removed.
  • Page 53 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-18 Removing sheet metal fasteners from a compressor Step 3 Remove the liquid level detector transport sheet metal fastener. Open the front door, use a Phillips screwdriver to remove the four M4x10 screws from...
  • Page 54 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Remove the two M4x10 screws from the liquid level detector transport sheet metal fastener, and remove the transport sheet metal fastener, as shown in Figure 3-20.

  • Page 55: Installation Flowchart

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-21 Connecting the interconnection terminal Reinstall the water pan cover. Step 4 Close the front and the rear doors. ----End 3.7 Installation Flowchart Figure 3-22 shows the NetCol5000-A installation flowchart.

  • Page 56: Installing The Indoor Unit

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-22 Installation flowchart 3.8 Installing the Indoor Unit 3.8.1 Preparing Knock-out Holes Procedure Step 1 Mark cable holes on the floor based on the sizes of cable holes at the bottom of the indoor unit,...
  • Page 57 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  Do not drill holes in the floor when routing cables from the top.  Drill holes at the bottom of the raised floor if it is used.

  • Page 58: Leveling Feet

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide (13) Top signal cable hole, Φ28 mm (14) Top humidifier water inlet pipe hole, Φ43 (15) Top skylight signal cable hole, Φ28 The cabinet must be carried by at least four persons.

  • Page 59: Optional) Installing The Enclosure Frame

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  Wrench an anchor bolt clockwise to elevate a cabinet, wrench an anchor bolt counterclockwise to lower a cabinet. The leveling feet can be adjusted within a range of 0–8 mm.

  • Page 60: Combining Cabinets

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Step 5 Bind the LCD and the NTC cables to the previous binding position using cable ties, and install the front door. Figure 3-25 Installing an enclosure frame ----End 3.8.4 Combining Cabinets...

  • Page 61: Securing The Indoor Unit

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-26 Combining cabinets 3.8.5 Securing the Indoor Unit If there is a base, secure the indoor unit to the base. If there is no base, secure the indoor unit to the floor.
  • Page 62 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-27 Distances between mounting holes Prerequisites Before installing the bolts, remove the rodent-proof rubber plugs in the mounting holes if there are any. Scenario with a Base Step 1 Secure the base to the floor using four M12 expansion bolts.
  • Page 63 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-28 Securing an indoor unit to a base Figure 3-28 shows only how the cabinet is secured to the base. Secure the base based on site requirements.

  • Page 64: Installing Anchor Baffle Plates

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-29 Securing an indoor unit to a floor ----End 3.8.6 Installing Anchor Baffle Plates Install anchor baffle plates only when you need to secure the indoor unit to a base.

  • Page 65: Exhausting Nitrogen

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  The bent flange of the anchor baffle plate faces the cabinet.  Baffle plates for the front and rear doors are installed in the same way.
  • Page 66 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-31 Positions of needle valves (1) Liquid pipe needle (2) Discharge pipe needle (3) Low-pressure needle valve valve valve Procedure Step 1 Remove the bonnets of the liquid pipe needle valve, low-pressure needle valve, and discharge...

  • Page 67: Connecting Pipes

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide 3.10 Connecting Pipes 3.10.1 Connecting Refrigerant Pipes Prerequisites Before welding, exhaust all nitrogen from the refrigerant pipe to avoid explosion and personal injury.  When welding the pipes connecting to the indoor unit, protect the needle valve and its tag.
  • Page 68 Recommended Diameter for Recommended Diameter Gas Pipes (inch) for Liquid Pipes (inch) L ≤ 80 Note: If the pipe is longer than 80 m, contact Huawei technical support. Connect refrigerant pipes based on Figure 3-32.  If the direction of a refrigerant pipe changes, add a support at the position 500 mm before and after the changing point respectively.
  • Page 69 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Nitrogen injection volume range: 6–12 L/min. The nitrogen injection time for the entire system is greater than 2 minutes. The nitrogen injection time after pipe welding is greater than 1 minute.

  • Page 70: Connecting Drainpipes

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide When routing pipes from the top, do not route the pipes over servers or other devices to protect the servers or other devices from being affected by pipe leaks.
  • Page 71 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  When procuring water pipes, ensure that the water pipes covered with thermal insulation foam can be routed through holes in the bottom or top plate. For the hole specifications, 3.8.1 Preparing Knock-out...
  • Page 72 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-36 Connecting the drainpipe in the case of top pipe routing Bottom Pipe Routing Use a flat-head screwdriver to remove the hose clamp from the pipe and take out the hose delivered with the smart cooling product.

  • Page 73: Optional) Connect The Water Inlet Pipe To The Electrode Humidifier

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-37 Connecting the drainpipe in the case of bottom pipe routing 3.10.3 (Optional) Connect the Water Inlet Pipe to the Electrode Humidifier The humidifier water inlet pipe is a hose installed under the humidifier. When connecting the...
  • Page 74 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-38 Routing a humidifier water inlet pipe from the bottom Figure 3-39 Routing a humidifier water inlet pipe from the top Issue 03 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 75: Leak Checking

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide 3.10.4 Leak Checking Context  The measuring range of the pressure gauges must be more than 4.0 MPa. The pipelines can withstand pressure of more than 4.5 MPa.

  • Page 76: Connecting Cables

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-40 Nitrogen injection and pressure preservation (1) Nitrogen cylinder (2) Reducing valve (3) Low-pressure gauge (4) High-pressure gauge (5) Discharge pipe needle valve (6) Low-pressure needle valve Step 2 Inject 3.0 MPa nitrogen and preserve the pressure for 24 hours.
  • Page 77 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-41 Port layout on the electrical control box (1) Active power input (AC1) (2) Backup power input (3) Main contactor control (AC2) switch (MD1) (4) Backup contactor control...

  • Page 78: Connecting The Indoor Unit Power Cable

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide 3.11.2 Connecting the Indoor Unit Power Cable Prerequisites Before connecting cables, remove the top cover from the power terminals. Context  Route power cables from the top or bottom.
  • Page 79 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  When there is only one power supply, the power cable must connect to the active power port (AC1).  The ground cable must meet the local electrical specifications.
  • Page 80 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-43 Routing power cables in the dual power supply scenario Step 3 Connect the equipotential ground cable. Issue 03 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 81: Connecting The Power Cable To The Outdoor Unit

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-44 Connecting the equipotential ground cable ----End 3.11.3 Connecting the Power Cable to the Outdoor Unit Connect the inlet cable terminals L1, L2, L3 respectively to the corresponding terminals of...

  • Page 82: Connecting Signal Cables

    Before connecting signal cables, take effective ESD measures.  Secure signal ports to a torque of 0.5 N· m.  You can purchase signal cables from Huawei or another vendor.  Before connecting cables, determine the cable routes based on engineering survey. Figure 3-46...
  • Page 83 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-46 Zoomed-in view of external signal ports Table 3-13 describes the definitions and functions of external signal ports. Table 3-13 Definitions and functions of external signal ports...
  • Page 84 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-47 shows routes of the outdoor unit on/off signal cable and water sensor signal cable.  The female connector needs to be removed from the wiring terminal on the external signal port.

  • Page 85: Connecting The Outdoor Unit On/Off Signal Cable

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-48 Routes of the outdoor unit on/off signal cable (RS485) and water sensor signal cable 3.11.4.2 Connecting the Outdoor Unit On/Off Signal Cable Context The outdoor unit signal cable can connect to a dry contact or an RS485 port (by default).

  • Page 86: Connecting The Water Sensor Cable

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  Outdoor unit signal cables can be connected over RS485 (default) or dry contacts. In RS485 connection mode, the indoor unit can obtain the operating status and alarm information of the outdoor unit and control the rotational speed and on/off status of the outdoor unit.

  • Page 87: Teamwork Networking And Monitoring

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide 3.11.5 Teamwork Networking and Monitoring Main Control Module Figure 3-49 shows a main control module. Figure 3-49 Main control module (1) FE_1 (active port) (2) CAN_IN (input port of the teamwork...
  • Page 88 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-50 FE teamwork network diagram (1) Smart ETH gateway Step 2 Prepare an FE network cable according to Figure 3-51. Figure 3-51 Pin sequence of the FE network cable...
  • Page 89 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-52 Network diagram  For CAN networking, set the DIP switch on the main control module by following the instructions in Table 3-14.  If Restore factory settings? The system will operate with existing settings 30s later. is displayed when the main control module is powered on, click No and flip toggle switch 4 on the main control module to OFF (default status).
  • Page 90 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-53 Teamwork control over a CAN bus Figure 3-53 shows how 32 teamworked smart cooling products, four in each group, connect to the EMS. Users can adjust the number of smart cooling products under one group based on the performance requirements.

  • Page 91: Installing T/H Sensors

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Figure 3-55 Pin sequence of an RS485 monitoring cable ----End 3.11.6 Installing T/H Sensors To install the T/H sensors, you need to connect cables to the sensors and set DIP switches for the sensor.
  • Page 92 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide  Fix cables to the T/H sensor using cable ties.  The T/H sensor is used to detect hot/cold aisle temperature. Determine the installation position of the T/H sensor based on the site situation. You are recommended to deploy the T/H sensor at a place where a heat point is most likely to appear in the hot or lack in cold aisle.

  • Page 93: Verification After Installation

    T/H 2 Hot aisle T/H 3  By default, the address of an T/H sensor provided by Huawei is 1.  No DIP switch operation is required for the last RS485_R port.  After setting communications addresses for T/H sensors, choose Settings > System Settings > T/H Sensor from the main menu and enable the T/H sensor in the aisle.
  • Page 94 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Check Item Expected Result Check Result □ Passed □ Failed The LCD is well connected. □ Passed □ Failed Electric heater The electric heater is secured.
  • Page 95 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 3 Installation Guide Check Item Expected Result Check Result □ Passed □ Failed Differential The cable ties on the differential pressure pressure switch tubes are secured. □ Passed □ Failed There is no foreign matter in the differential pressure tubes.

  • Page 96: Acc Introduction

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction ACC Introduction 4.1 Home Screen You can tap the menu items, buttons, or icons on the screen to enter related screens or perform operations, such as Running, Alarms and Settings. The controller main screen is shown in Figure 4-1.

  • Page 97: Menu Hierarchy

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Items Note and the main control board communicates properly with the main control board. is displayed in this position in the status bar, the communication fails.
  • Page 98 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-2 Hierarchy of the controller menu The functions of the menus are described as follows:  Common Functions Indicates the component status, system parameters, and historical alarms of the smart cooling product.

  • Page 99: Power-On Commissioning

    Figure 4-3 Permission authentication To prevent misoperation, log in as Operator users first before modifying parameters. Obtain permission from Huawei before modifying any parameter that you are not allowed to modify, otherwise, Huawei will not be liable for any consequences of the modification.

  • Page 100: Initial Configuration

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Step 2 Set the language and tap Next, as shown by (1) in Figure 4-4. Figure 4-4 Quick settings Step 3 Set the time and date and tap Next, as shown by (2) in Figure 4-4.

  • Page 101: Setting Temperature And Humidity Values

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction successfully started or shut, the system displays a message, indicating that the command is successfully triggered. Figure 4-5 Start and shutdown  If a power failure occurs and the smart cooling product is powered on again, the smart cooling product automatically restores to the original state (start or shutdown) before the power failure.
  • Page 102 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction You are not recommended to modify the parameters not listed in Table 4-2. Table 4-2 Parameter description Parameter Description Configuration Principle  T/H control type Sets Cold-aisle,...

  • Page 103: Setting Communications Parameters (Ip Settings)

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Parameter Description Configuration Principle Hot-aisle temp set point, Hot-aisle humid set point Cold aisle sensor Sets the sensors in Enable the corresponding humidity and 1, 2, 3 cold aisles to Enable.

  • Page 104: Setting Communications Parameters (Modbus Settings)

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.3.2.4 Setting Communications Parameters (Modbus Settings) Procedure Step 1 Choose Settings > Comm Settings > Modbus Settings on the home page. The page shown Figure 4-8 is displayed.
  • Page 105 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction In the teamwork iCooling mode, each micro module supports only one teamwork network, and all smart cooling products must be networked in the teamwork mode. Smart cooling products managed by different micro modules cannot be networked in teamwork mode.
  • Page 106 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Parameter Description Configuration Default Value Principle group no. number. group, which is the same for all the devices in the group. Teamwork Only one device in each...
  • Page 107 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Parameter Description Configuration Default Value Principle changes, select the corresponding networking mode on the screen. If the networking mode is changed on the screen, the software will restart and then run in the new networking mode.
  • Page 108 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Parameter Description Configuration Default Value Principle humidity control type humidity set point of and set points of the units are the same, and master device and...
  • Page 109 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Parameter Description Configuration Default Value Principle ref. temp L1/L2 linkage. not recommended to change the value. L1/L2 Reference temperature at Set this parameter based 18.0° C...
  • Page 110 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-10 Teamwork topology Table 4-6 Note for the screen Parameters Note ON/OFF/NA On indicates that the smart cooling product is started and Off indicates that the smart cooling product is shut down.

  • Page 111: Optional) Setting Alarm Parameters

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction If teamwork succeeds, the teamwork icon is green. If teamwork fails, the teamwork icon is red. If teamwork mode is disabled, the teamwork icon is gray.
  • Page 112 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction − Allow Alarms are reported to the EMS. Active alarms are displayed on the LCD and the system performs related protection actions. Block − New alarms are not reported to the EMS. The EMS can detect alarms that are generated before the blocking.

  • Page 113: Commissioning Guide

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-12 Setting alarm parameter 2 ----End 4.3.3 Commissioning Guide 4.3.3.1 Entering Diagnostic Mode Context  On the diagnostic mode screen, you can turn on or off components, and control their output ratio.

  • Page 114: Commissioning Smart Cooling Product Components

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction  To ensure system security, a component may not promptly respond to operations performed on this screen. For example, the compressor does not respond promptly after the Off (On) button is tapped if the shortest running (shutdown) time is not met.

  • Page 115: Maintenance Guide

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-14 Turning on the electric heater After the electric heater is turned on, the OffStatus following the Electric heater turns into OnStatus. ----End 4.4 Maintenance Guide 4.4.1 Querying Parameters...

  • Page 116: Querying Alarms

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction  The temperature curve (upper) and the humidity curve (lower) are displayed on the same screen. The abscissa shows time. The temperature set point is the midpoint temperature on the upper ordinate while the humidity set point is the midpoint humidity on the lower ordinate.
  • Page 117 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction  You can query an alarm on the alarm list in related user manual for smart cooling product based on the alarm ID to view causes of the alarm and methods used to clear the alarm.

  • Page 118: Querying Logs

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.4.1.3 Querying Logs Context Logs record operations on the system. Maintenance and technical service engineers can query logs to locate operations on the system. Procedure Step 1 On the home screen, choose Maint > Log Maint > Query Logs.

  • Page 119: Querying Component Status

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.4.1.5 Querying Component Status Context You can query component status in the following two ways.  Enter the Status screen. The control or running status of major components such as the compressor, indoor fan, outdoor fan, electric heater, and humidifier is displayed.

  • Page 120: Querying System Parameters

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-22 Compressor running status ----End 4.4.1.6 Querying System Parameters Context You can query the system parameters through two ways.  Enter the Operating Info screen that displays the major system parameters such as the current detected temperature, humidity, voltage, and power frequency.

  • Page 121: Querying Version Details

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-24 Compressor parameters ----End 4.4.1.7 Querying Version Details Procedure Step 1 On the home screen, select About. Step 2 On the About screen, tap Version Info or E-label.

  • Page 122: Modifying Parameters

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.4.2 Modifying Parameters 4.4.2.1 Deleting Historical Alarms Context To delete historical alarms, log in as the Admin user. Exercise caution when deleting all historical alarms. Because this operation may cause clearance of all historical alarms and affects device maintenance.

  • Page 123: Exporting Data

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction If you perform this operation, all logs will be deleted, and device maintenance will be affected. Exercise caution when doing this operation. Procedure Step 1 On the home screen, choose Maint > Log Maint > Delete Logs > Yes to delete all the logs.

  • Page 124: Clearing The Runtime

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-27 Select path Step 2 Tap the file where the user saves current data in the Select Path dialog box and tap Next. Then tap Yes in the displayed dialog box.

  • Page 125: Calibrating A Sensor

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Procedure Step 1 On the home screen, choose Maint > Performance Maint. Figure 4-29 is displayed. Figure 4-29 Performance maint screen Step 2 Tap Clear of a specific performance parameter to clear its runtime.

  • Page 126: Calibrating The Screen

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.4.2.6 Calibrating the Screen Context  You can calibrate for touching point deviation on the touchscreen.  You can calibrate the screen by tapping the screen on the Screen Calib page or by DIP switch.
  • Page 127 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-32 Screen displayed when the calibration is complete  Calibrating the screen by DIP switch. Flip toggle switch 1 for the LCD to ON, and others to the opposite position, and wait for 3 seconds before calibrating.

  • Page 128: Faq

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.5 FAQ 4.5.1 How to Perform Quick Settings Context On the quick settings screen, you can set the language, time, date, and system. Procedure Step 1 Choose Settings > Quick Settings on the home screen. The quick settings screen is displayed,...

  • Page 129: How To Change A Password

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.5.3 How to Change a Password Prerequisites You can only change the password of the current user. Procedure Step 1 On the home screen, choose Settings > User Settings to enter the User Settings screen, as...

  • Page 130: Restoring Factory Settings

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-36 Changing the password ----End 4.5.4 Restoring Factory Settings Context If you have forgotten the password or need to delete system information, you can restore factory settings using DIP switch on the main control module.
  • Page 131 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction  If you restore factory settings, all system data will be restored to the state before delivery, including login passwords, operation logs, parameter configurations, alarms, and performance statistics.

  • Page 132: How To Troubleshoot The Fault When The System Is In Upgrade Mode

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction After the system is restored to factory settings, the user password is also reset to the preset password, and must be promptly modified to ensure information security and normal system running.

  • Page 133: How To Manually Clear Alarms

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Procedure Step 1 Tap the icon in the status bar and tap Off to silence the buzzer. After the buzzer is silenced, the icon changes to ----End 4.5.7 How to Manually Clear Alarms...

  • Page 134: How To Check Teamwork Control Information

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Step 2 Set Cold-aisle sensor 1 and Cold-aisle sensor 2 to Enable, as shown in Figure 4-40. Figure 4-40 Enabling a humidity and temperature sensor ----End 4.5.9 How to Check Teamwork Control Information...

  • Page 135: Which Parameters Are Restored To Default Values After Default Settings Are Operated

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.5.10 Which Parameters Are Restored to Default Values After Default Settings Are Operated After choosing Settings > Restore Defaults > Yes, the following parameters are displayed: ...
  • Page 136 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-42 Entering the user name and password The new password should meet the following requirements:  Contains at least eight characters.  Contains at least two types of characters: lowercase letter, uppercase letter, digit, space, and special character (`~!@#$%^&*()-_=+\|[{}];:'",<.>/?).
  • Page 137 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction Figure 4-43 Switching to the root user Step 4 Enter passwd (the password change command) to change the password. In the displayed window, enter a new password and confirm it, as shown in Figure 4-44.

  • Page 138: Rectifying Faults Of The E-Label Identification Board

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 4 ACC Introduction 4.5.12 Rectifying Faults of the E-label Identification Board Context If strong electromagnetic interference exists, an exception may occur during E-label identification.  If the information shown in...

  • Page 139: Powering Off And Maintaining A Smart Cooling Product In Icooling Linkage Mode

    If no, continue with Step Step 2 Disconnect the main power supply from the smart cooling product. Step 3 Contact Huawei technical support to replace the backplane of the smart cooling product. ----End 4.5.13 Powering Off and Maintaining a Smart Cooling Product in...

  • Page 140: Power-On Commissioning

    5.2 Vacuumization and Refrigerant Precharging Ensure that no combustion-supporting materials (air or additives) enter the smart cooling product system during commissioning. Huawei shall not be liable for any risks and losses thus incurred. 5.2.1 Requirements of Refrigerant and Refrigerant Oil to Be...

  • Page 141: Optional) Charging Refrigerant Oil

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning Table 5-1 Refrigerant and Refrigerant oil to be charged for NetCol500-A0265S11E0 Item Length of one-way pipeline (m) 0 < L ≤ 10 10 < L ≤ 80 9 + (L –...

  • Page 142: Vacuumizing

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning Figure 5-1 Charging refrigerant oil (1) Refrigerant oil barrel (2) Electric balance (3) Vacuum pump (4) Discharge pipe needle valve (5) Low-pressure needle valve Step 2 Open the vacuum pump to charge refrigerant oil to the cooling system. Close the vacuum pump after all the refrigerant oil is charged into the system.
  • Page 143 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning Figure 5-2 Vacuumizing (1) Pressure gauge (2) Vacuum pump (3) Discharge pipe needle valve (4) Low-pressure needle valve Step 2 In the beginning, the vacuum pump makes loud noises and exhausts white smoke from the exhaust vent.

  • Page 144: Partially Charging In Refrigerant

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning 5.2.4 Partially Charging in Refrigerant Prerequisites Before refrigerant charging, ensure that the air is exhausted from the hose connecting to the steel vessel of the refrigerant.
  • Page 145 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning Figure 5-3 Partially charging in refrigerant (1) Pressure gauge (2) Coupling nut (3) Refrigerant vessel (4) Electric balance (5) Discharge pipe needle valve (6) Low-pressure needle valve...

  • Page 146: Preparing For Power-On

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning After the injection is completed, tighten the needle valve bonnet, and check whether the needle valve leaks by applying soap bubbles to the valve vent or using a halogen leak detector. If the valve leaks, contact Huawei technical support.

  • Page 147: Powering On The Equipment

    Figure 3-41. Before starting the compressor, ensure that the electric heating belt of the crankcase has been preheated for more than 12 hours. Otherwise, the compressor will be damaged, and Huawei shall not be liable for any such consequences. Procedure Step 1 Switch on the smart cooling product switch in the upstream PDC.
  • Page 148 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning  Remove the refrigerant steel cylinder after confirming that sufficient refrigerant has been injected.  Users are classified into Admin and Operator users. Admin users have more rights than Operator users.
  • Page 149 1. Charge refrigerant in an amount exactly as standard charge required. 2. The air inlet and outlet of outdoor unit are without block. If the problem remains unresolved after troubleshooting, please contact Huawei technical support. Issue 03 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 150: Powering Off The Equipment

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning Step 7 (Optional) Commission the humidifier. On the home screen, Choose Maint > Diagnostic Mode > Enter and set Humidifier to 50%. The water supply valve opens and water is charged into the humidifier cylinder automatically.
  • Page 151 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 5 Power-On Commissioning  Excise caution as the equipment is still energized shortly after it is powered off.  When maintaining or replacing an smart cooling product component, turn off the smart cooling product switch in the upstream PDC.

  • Page 152: System Operation And Maintenance

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance System Operation and Maintenance 6.1 Maintenance Components Figure 6-1 shows the positions of the components to be maintained. Figure 6-1 Components (1) Evaporator (2) External signal port...

  • Page 153: Routine Maintenance Overview

    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.

  • Page 154: Data Record

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Table 6-1 Maintenance tools Tool Name and Appearance Marker 13# solid wrench Fin brush Socket wrench Water pipe sealant Phillips screwdriver Flat-head Protective gloves...

  • Page 155: Monthly Maintenance

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Menu Item Parameter Record Compressor. Discharge pressure Suction pressure Tap Teamwork. Teamwork function Choose Teamwork > Teamwork Total number of units Settings. Number of active units 6.2.3 Monthly Maintenance...

  • Page 156: Semiannual Maintenance Items

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Item Method Troubleshooting Humidifier reported. cylinder. After the electrode humidifier Replace the electrode humidifier starts, choose Running > cylinder. Device Details > Humidifier on the main screen to make sure that the current of each phase is not less than 2.0 A...
  • Page 157 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Table 6-4 Semiannual maintenance items Component Item (On the Basis of Monthly Maintenance) Troubleshooting Monitoring Export smart cooling product logs, Rectify the fault or contact alarms, temperatures, humidity, the Huawei technical support.

  • Page 158: Alarm Reference

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Component Item (On the Basis of Monthly Maintenance) Troubleshooting Water detector Check that the water detector is securely installed. 6.3 Alarm reference Table 6-5 describes alarms for the in-row air cooled smart cooling product NetCol5000-A.
  • Page 159 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity the actual temp. 1. The load is low. 1. Contact Huawei technical a003 Return-air LT...
  • Page 160 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity driver or fan is refrigerant. faulty. 9. Reinstall the outdoor unit 5. Cables to the properly.
  • Page 161 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity HT lock alarm. the compressor alarm is generated is forcibly shut frequently. NOTE down. After the alarm is rectified, click Manual clear on the alarm page.
  • Page 162 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity accumulated runtime exceeds the alarm threshold. a027 Power loss Warning The alarm is The supply power Check the power supply generated.
  • Page 163 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 1. The power 1. Check the power supply a035 Power Major The alarm is supply frequency.
  • Page 164 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 1. Water exists on 1. Check and clear the water. a043 Floor water Critical The alarm is the floor.
  • Page 165 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity different from suction pressure sensor. the actual 3. Maintain or replace the pressure. filter dryer.
  • Page 166 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 3. The cold-aisle 4. Calibrate or replace the HT alarm abnormal sensors. threshold is 5. Add more smart cooling inappropriate.
  • Page 167 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity port of the control board is faulty. 1. The cables to 1. Check the cables to the...
  • Page 168 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity HP lock alarm. the compressor alarm is generated is shut down. frequently. NOTE The alarm can...
  • Page 169 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity compressor driver is faulty. comp driver. responds to 3. The air switch system of comp driver requirements is off.
  • Page 170 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 2. The condenser 3. Maintain or replace the fins are outdoor units. blocked. 4. Decrease certain amount of 3.
  • Page 171 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 1. The comp is in 1. Fill oil to the comp. a075 Comp phase Major The alarm is lack of oil.
  • Page 172 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity internal drainpipe is blocked or frozen. 1. Cables to the 1. Check cables to the liquid...
  • Page 173 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 1. The load is low. 1. Contact Huawei technical a093 High humidity Warning The alarm is support.
  • Page 174 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity failure generated, and is faulty. indoor fan. the compressor 2. The cables to 2. Check the cables to the is shut down.
  • Page 175 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 2. The T/H sensor is faulty. 1. The cables to 1. Check the cables to the...
  • Page 176 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity cooling product ETH converter or the and the ETH supervisory. converter or the supervisory. 1. The main 1.
  • Page 177 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity dropped. connection and Running Condition. 4. The ETH converter is 4. Check the ETH converter faulty.
  • Page 178 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity After the alarm is rectified, click gauge is Manual clear on the alarm page. short-circuited or the circuit is faulty.
  • Page 179 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity blocked. or replace the valve if necessary. 6. The drainpipe is blocked. 6. Verify that the drainpipe can drain water smoothly.
  • Page 180 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity Manual clear on the alarm page. a131 Drainage Major The humidifier The drainage Replace the drainage solenoid solenoid fault is shut down.
  • Page 181 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 1. The electronic 1. Reinstall the electronic a138 EEV high Major The alarm is expansion valve expansion valve coil.
  • Page 182 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity driver is faulty. control board. 3. The outdoor unit is not powered on. 4. The...
  • Page 183 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity voltage meets specifications. the lower threshold. 1. A cable of the 1. Secure the cables...
  • Page 184 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity 1. The driver 1. Cut off the three-phase a158 Inverter output Major The alarm is...
  • Page 185 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity a167 Secondary Major The alarm is The secondary Replace the secondary power power 24 V generated.
  • Page 186 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity humidity 2. The cables to cables to the temp sensor, linkage the T/H sensor the rack environment unit,...
  • Page 187 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity solenoid valve or replace the valve if leaks. necessary. 5. Humidifier 5. Verify that cables to...

  • Page 188: Troubleshooting

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Alarm Alarm Name Alarm Impact Possible Causes Solution Severity alarm generated. preheating the preheating in the Setting compressor oil. menu. a186 EEV driver Critical...
  • Page 189 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Table 6-6 Troubleshooting Symptom Possible Cause Solution The unit generates abnormal Compressor, fans, or pipes Check the fixing structure voice. are loose. and ensure that all components are securely installed.
  • Page 190 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Symptom Possible Cause Solution The compressor suction The refrigerant is Fill more refrigerant. pressure is too low. insufficient. The condensing pressure is Check whether the outdoor too low.
  • Page 191 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Symptom Possible Cause Solution An electric heater is burnt Disconnect the power out. supply and check whether the electric heater is damaged by checking the...
  • Page 192 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Table 6-7 Humidifier Faults Symptom Possible Cause Measures Water spouts when it is Bubbles exist in the During the initial injected into the water inlet pipe when...

  • Page 193: Parts Replacement

    If the fault does not restore, contact Huawei technical support. 6.5 Parts Replacement After replacing any part, verify that the new part works properly. 6.5.1 Replacing the Air Filter Prerequisites ...

  • Page 194: Replacing The Indoor Fan

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Figure 6-3 Removing an air filter Step 2 Install air filters in accordance with the arrow direction shown on the air filter frame (the arrow points to the smart cooling product interior).
  • Page 195 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance When removing a fan, remove the screws before loosening the captive screws. When installing a fan, tighten the captive screws clockwise, and then install the screws.

  • Page 196: Replacing The Differential Pressure Switch

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Figure 6-5 Removing a fan assembly Step 4 Install a new fan and fan guard, connect the connectors, and use a cable tie to secure the cable.

  • Page 197: Replacing The Compressor

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Exercise caution because the NetCol5000-A is still energized when it is being shut down over the LCD. Step 2 Open the rear door and remove the air filter.
  • Page 198 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance  A spare compressor of the same model is available and functional.  Tools: protective gloves, flat-head screwdriver, Phillips screwdriver, heat gun, refrigerant retrieval device (configured based on local conditions), sealant for refrigerant pipes,...
  • Page 199 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance  Exercise caution because the NetCol5000-A is still energized when it is being shut down over the LCD.  When replacing the compressor, tighten the suction angle valve to a torque of 150 N· m and the discharge angle valve to a torque of 120 N·...
  • Page 200 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance After removing the valve, seal the suction vent immediately to ensure that the system is clean and that moisture does not enter the pipe.

  • Page 201: Replacing The Welded Filter Dryer

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Follow-up Procedure Power on the NetCol5000-A, Choose Maint > Performance Maint on the home screen and then clear the compressor runtime. 6.5.5 Replacing the Welded Filter Dryer Prerequisites ...
  • Page 202 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Exercise caution because the NetCol5000-A is still energized when it is being shut down over the LCD. Step 2 Reclaim all refrigerant from the system using a refrigerant retrieval device to ensure that there is no pressure inside the system.
  • Page 203 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Remove the hold hoop from the filter dryer using a Phillips screwdriver. Weld off the entrance elbow below the filter dryer. Weld off the filter dryer assembly include filter dryer and entrance elbow from the above of the filter dryer.

  • Page 204: Replacing The Threaded Filter Dryer

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Step 6 Reinstall the liquid pipe NTC temperature sensor. Step 7 Perform a leakage test with nitrogen again. Step 8 After checking that the smart cooling product does not leak, vacuumize the smart cooling product and charge refrigerant.
  • Page 205 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Procedure Step 1 Tap Shutdown on the LCD home screen and turn off the smart cooling product switch in the PDC and the compressor switch QF3.
  • Page 206 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Remove the hold hoop from the filter dryer using a Phillips screwdriver. Heat the suction angle valve joints using a heat gun for 10 minutes. Use two 27#...

  • Page 207: Replacing The Welded Filter Dryer With The Threaded Filter Dryer

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance 6.5.7 Replacing the Welded Filter Dryer with the Threaded Filter Dryer Prerequisites  The welded filter dryer needs to be replaced.  A spare threaded filter dryer of the same model is available and functional. The spare threaded filter dryer consists of a filter dryer, entrance elbow (with a thread connector), and exit straight tube (with a thread connector).
  • Page 208 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance  Use copper welding rods to weld the connection ports and check that the welding joints are in good condition, without poor soldering. ...
  • Page 209 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance  Weld the exit straight tube and the sight glass to form an assembly, which is then welded to the original position in the smart cooling product. Weld the entrance elbow to the smart cooling product.

  • Page 210: Optional) Replacing The Humidifier Cylinder

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Apply red glue to the third to second last thread circles of the outer screw thread counting from the pipe outlet inward. Use two 27# adjustable wrenches to secure the filter dryer nut and pipe nut, respectively.
  • Page 211 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Step 6 Loosen the caps of cables connected to the humidifier cylinder, and remove the cables, as shown by (2) in Figure 6-17. When removing cables, save the flat washer above the cables. The flat washer needs to be reinstalled after the humidifier cylinder is replaced.

  • Page 212: Replacing A Component Inside The Electric Control Box

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance 6.5.9 Replacing a Component Inside the Electric Control Box Prerequisites  Tool: a Phillips screwdriver.  A component inside the electric control box, such as the main control board, circuit breaker, AC contactor, fuse, or fuse base, needs to be replaced.

  • Page 213: Replacing The T/H Sensor

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Step 6 Place the electric control box in the installation position and tighten it. Step 7 Reconnect cables and terminals. Step 8 Power on the NetCol5000-A and check that it runs properly.

  • Page 214: Replacing The Module

    Before replacing a main control module, disconnect the network cable from the module.  To replace the main control module, download the software and ACC software upgrade guide from Huawei websites, and upgrade it on the LCD. The module can be maintained only from the rear. Issue 03 (2020-01-10)
  • Page 215 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Figure 6-20 Module (1) Main control module (2) Auxiliary power supply module (3) Reserved (4) PSU Procedure Step 1 Tap Shutdown on the LCD home screen and turn off the smart cooling product switch in the PDC.

  • Page 216: Optional) Replacing The Liquid Level Detector

    When installing a new module, ensure that the handle is in the upper part of the module, and the HUAWEI logo is in the lower left corner of the module. Step 5 Insert the spare module into the corresponding slot, and flip the clip upwards to lock the module.
  • Page 217 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Figure 6-22 Liquid level detector (1) Low liquid level detector (2) High liquid level detector Procedure Step 1 Tap Shutdown on the LCD home screen.
  • Page 218 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Figure 6-23 Removing a water pan cover Step 3 Use a Phillips screwdriver to remove the two screws that secure the sheet metal fastener of the...

  • Page 219: Replacing The Water Pump

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Figure 6-25 Removing screws from a high liquid level detector Step 5 Install the new liquid level detector and connect the interconnection terminal of the liquid level detector.
  • Page 220 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Exercise caution because the NetCol5000-A is still energized when it is being shut down over the LCD. Step 2 Open the front door and disconnect the water pump power cable.
  • Page 221 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Figure 6-27 Water pump drainpipe (1) Water pump drainpipe Step 3 Use a flat-head screwdriver to remove the two hose clamps from the pipe, and remove the...
  • Page 222 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Figure 6-29 Removing a water pump assembly Step 5 Use a flat-head screwdriver to remove the hose clamp from the water pump, and then remove...

  • Page 223: Replacing The Lcd

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance 6.5.14 Replacing the LCD Prerequisites  The LCD needs to be replaced.  A spare LCD with the correct software version is available. If the LCD software is incorrect, upgrade the software by following the instructions in the ACC Software Upgrade Guide.
  • Page 224 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) 6 System Operation and Maintenance Step 5 Connect the cable to the LCD and close the front door. ----End Issue 03 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 225: A Acronyms And Abbreviations

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) A Acronyms and Abbreviations Acronyms and Abbreviations Advanced cooling controller Controller area network Direct current Dual in-line package Electronic commutation Electronic expansion valve High pressure High temperature Low pressure...
  • Page 226 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) A Acronyms and Abbreviations Power supply unit RCCB Residual current circuit breaker Universal Serial Bus Issue 03 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 227: B Base Dimensions

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) B Base Dimensions Base Dimensions The following figures show the smart cooling product indoor unit base dimensions. Figure B-1 Base installation dimensions (without an enclosure frame) Issue 03 (2020-01-10)
  • Page 228 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) B Base Dimensions Figure B-2 Base installation dimensions (with an enclosure frame) Issue 03 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 229: C Cooling System Layout

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) C Cooling System Layout Cooling System Layout A complete cooling system is composed of the indoor unit NetCol5000-A and outdoor unit NetCol500. Figure C-1 shows the layout of the components in the cooling system.
  • Page 230 C-1, the pipelines in dashed lines are to be routed onsite by technical personnel.  Huawei does not provide the oil trap and inverted trap. However, to ensure the normal operating and easy maintenance of the cooling system, it is recommended that you use these two components.

  • Page 231: D Electric Control Box Layout

    NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) D Electric Control Box Layout Electric Control Box Layout Figure D-1 Electric Control Box Layout Table D-1 Electric Control Box Layout Name and Function Front view of (1) Main power...
  • Page 232 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) D Electric Control Box Layout Name and Function (5) Circuit (6) Heating and (7) Compressor, (8) Electric breaker (QF3) humidification PSU power port heating and for the outdoor circuit breaker...
  • Page 233 NetCol5000-A021 In-row Air Cooled Smart Cooling Product User Manual (208 V) D Electric Control Box Layout Name and Function RS485 control RS485-SW- GND-ISO Dry contact Dry contact alarm 1 alarm 1 Dry contact alarm 1 Dry contact Dry contact alarm 2...

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