Huawei NetCol5000-C Series User Manual
Huawei NetCol5000-C Series User Manual

Huawei NetCol5000-C Series User Manual

Simple configuration in-row chilled water smart cooling product
Hide thumbs Also See for NetCol5000-C Series:
Table of Contents

Advertisement

Quick Links

NetCol5000-C030 In-row Chilled Water Smart
Cooling Product
User Manual (Simple
Configuration)
Issue
09
Date
2020-01-10
HUAWEI TECHNOLOGIES CO., LTD.

Advertisement

Table of Contents
loading

Summary of Contents for Huawei NetCol5000-C Series

  • Page 1 NetCol5000-C030 In-row Chilled Water Smart Cooling Product User Manual (Simple Configuration) 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

    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 Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 4 Modified the section of setting teamwork control parameters. Issue 05 (2017-04-24) Changed the following descriptions:  Added items of troubleshooting.  Deleted a025 alarm and the step of replacing chilled water valve. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 5 Required torque of the clamp when connecting an automatic condensate drainpipe  Monthly maintenance of the water pan filter Issue 02 (2015-09-20) Added the chapter of ACC introduction. Issue 01 (2015-07-10) This issue is the first official release. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 6: Table Of Contents

    3.1.4 Structural Specifications ............................37 3.2 Unpacking ................................... 40 3.3 Installation Flowchart ..............................40 3.4 Checking the Pressure ..............................42 3.5 Installing Water Pipe Adapters ............................ 43 3.6 Removing the Pallet ..............................46 Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 7 4.3.3.1 Entering Diagnostic Mode ..........................103 4.3.3.2 Commissioning Smart Cooling Product Components ..................104 4.4 Maintenance Guide ..............................105 4.4.1 Querying Parameters ............................. 105 4.4.1.1 Querying Temperature and Humidity Curves ..................... 105 Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 8 6.1 Routine Maintenance ..............................137 6.1.1 Overview ................................137 6.1.2 Routine Maintenance Item ............................. 138 6.2 Alarm Reference ............................... 142 6.3 Troubleshooting ................................ 157 6.4 Parts Replacement ..............................160 6.4.1 Replacement Requirements ........................... 160 Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 9 6.4.14 Replacing a Controller Panel ..........................182 A Acronyms and Abbreviations ....................184 B Glycol Adding Requirements ....................185 C Electrical Schematic Diagram ....................186 D Controller Menu Structure ..................... 189 Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd. viii...
  • Page 10: 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 11  Keep irrelevant people away from the equipment. Only operators are allowed to access the equipment.  Use insulated tools or tools with insulated handles, as shown in the following figure. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 12  To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telecommunication network voltage (TNV) circuits. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 13: 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 14 When selecting, connecting, and routing cables, follow local safety regulations and rules. The static electricity generated by human bodies may damage the electrostatic-sensitive components on boards, for example, the large-scale integrated (LSI) circuits. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 15: Installation Environment Requirements

     Ensure that the equipment room provides good heat insulation, and the walls and floor are dampproof.  Install a rat guard at the door of the equipment room. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 16: Mechanical Safety

    Before hoisting objects, ensure that hoisting tools are firmly secured onto a load-bearing object or wall.  Ensure that the angle formed by two hoisting cables is no more than 90 degrees, as shown in the following figure. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 17 Do not climb higher than the fourth rung of the ladder from the top.  Ensure that your body's center of gravity does not shift outside the legs of the ladder. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 18 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 19: Cooling System Safety

    The dealer can help you recycle devices in a safe and environment-friendly way. 1.7 Others Exercise caution when shutting down the smart cooling product. Doing so may cause equipment and room overheating, which will damage the equipment. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 20: Product Description

    NetCol5000-C030H6B2010020E1  NetCol5000-C030H6B2010020E0  NetCol5000-C030H7B201E120E0  NetCol5000-C030H7B2010020E1  NetCol5000-C030H7A201E120E0  NetCol5000-C030H7A2010020E1 In the following context, NetCol5000-C030H6 is short for NetCol5000-C030H6B2010020E1 and NetCol5000-C030H6B2010020E0. NetCol5000-C030H7 is short for NetCol5000-C030H7B201E120E0, NetCol5000-C030H7B2010020E1, NetCol5000-C030H7A201E120E0, and NetCol5000-C030H7A2010020E1. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 21: Dimensions

    Product User Manual (Simple Configuration) 2 Product Description Figure 2-1 Naming rule for the NetCol5000-C series products 2.2 Dimensions NetCol5000-C can be installed on a concrete floor or an ESD floor, is combined with IT cabinets. It supports top or bottom piping and cabling. It can be maintained from the front or rear doors without movement.
  • Page 22: Components

     Condensate pump (optional) The drainage system uses dual floats and double water pumps, achieving higher reliability.  Air deflector (optional) The air deflector controls the horizontal supply air flow direction. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 23: Controller

    Table 2-1 Indicator and buzzer status description Alarm Status Indicator Buzzer The device is operating properly, or a Green No buzzing warning is generated. There is an unacknowledged major Yellow Intermittent buzzing alarm. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 24 USB Host  After installing the WiFi module, locally connect to the smart cooling product over the Service Expert app. Obtain the initial startup password during deployment. View or obtain the running Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 25: Functions And Features

    (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 26: Monitoring System

    Smart cooling products can be networked over a controller area network (CAN) to realize teamwork control and energy conservation as well as extend the service life. Figure 2-5 Northbound RS485 communication and CAN teamwork control Figure 2-6 Networking over FE ports Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 27: Working Conditions

    20° C.  A Y-shaped strainer with 20 filtration pores is installed in the water inlet pipe. The pH value of chilled water is in the range of 7.0 to 9.0. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 28: Technical Specifications

    1250 μS/cm, the humidifier service life is affected. 2.5 Technical Specifications Table 2-6 NetCol5000-C technical specifications (1) Item NetCol5000-C030H6B2010020 NetCol5000-C030H6B201002 Cooling capacity 30 kW 30 kW Maximum power 1100 W 1100 W Maximum current 5.5 A 5.5 A Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 29 RoHS and REACH RoHS and REACH a refers to the test condition (return air dry/wet bulb temperature: 37.8° C/20.8° C; chilled water inlet temperature: 10° C; water flow rate: 5.5 m /h). Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 30 2000 mm x 300 mm x 1200  2000 mm x 300 mm x 1200 Package 2200 mm x 760 mm x 1350 mm 2200 mm x 760 mm x 1350 mm Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 31 EC fan Speed adjustment Stepless Stepless Rated air volume 5100 m 5100 m Maximum 1.6 MPa 1.6 MPa operating pressure Configuration of a condensate pump Configuration of an air deflector Heating function Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 32: Performance Curves

    NetCol5000-C works under rated power and air flow. Cooling Capacity Derating Coefficient Curve in Proportion to the Altitude Figure 2-7 Cooling capacity derating coefficient curve in proportion to the altitude Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 33 Cooling Capacity Curve in Proportion to the Glycol Solution Density The cooling capacity is the rated cooling capacity multiplied by the glycol solution density. Figure 2-8 Cooling capacity curve in proportion to the glycol solution density Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 34: Installation

    Ensure that a minimum of 900 mm maintenance clearance is reserved in one of front and back sides, and a minimum of 600 mm maintenance clearance is reserved in the other side, as shown in the following figures. Figure 3-1 Maintenance clearance 1 (unit: mm) Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 35: Tools

    Adjustable wrench Socket wrench screwdriver 36 mm (2 PCS) M10/M12 Hex key (5 mm) Open end torque Diagonal pliers Wire stripper wrench Crimping tool Torch Electrician's knife Step ladder (2 m) Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 36 Level Hot melt device (used when water pipes are made of PPR or aluminum-plastic material) Heat gun Table 3-2 Transportation tools Appearance, Parameter, and Name Diesel pallet truck Manual pallet truck Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 37: Pipe Connections

    Figure 3-3 Bottom piping connections (NetCol520 connected) (1) Copper gate valve (2) Y-shaped strainer (3) Water pressure gauge (4) Water pressure gauge bend (5) Thermometer Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 38 Figure 3-4 Bottom piping connections (NetCol520 not connected) (1) Copper gate valve (2) Y-shaped strainer Figure 3-5 Top piping connections (NetCol520 connected) (1) Water pressure gauge (2) Water pressure gauge bend (3) Thermometer Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 39: Material Preparations

    Mandatory: materials that are provided by Huawei and can be found in the delivered fittings.  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. ...
  • Page 40 (DN25): 15–20 mm  The recommended thickness of thermal insulation foam wrapping the condensate water pump drainpipe (DN4): 5  The recommended thickness of thermal insulation foam wrapping Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 41 DN25, each for main chilled Engineering water supply and return procurement pipes, pressure resistance: 2.0 MPa or more Y-shaped strainer Recommended: pressure Engineering resistance of 2.0 MPa or procurement, based on Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 42 Install a support every 2500 mm for the straight sections of pipes, and 1000 mm away from each bending point in turning sections. The water inlet pipe can be connected for a humidifier in two ways, as shown in the following figure. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 43 C in Figure Stainless corrugated hose, Select a stainless corrugated hose that is appropriate for the distance between the Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 44 (8) Steel pipe (DN25, inch, BSPP, internal threaded recommended, subject to connector, DN25 recommended, engineering length 200 mm recommended, procurement) subject to engineering procurement) The following table describes the cable specifications. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 45 1 PCS Engineering UL2464, 0.64mm, procurement 22AWG, 1 Pair Bare crimp terminal, 2 PCS Standard single cord-end configuration; terminal, 0.5 mm , 5 A, delivered with the tin plated, 6 mm Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 46: Structural Specifications

    Standard configuration; delivered with the product ≥ 6 mm PE cable (outside the cabinet) 1 PCS Engineering procurement 3.1.4 Structural Specifications The following figure shows the external structure of the NetCol5000-C. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 47 (5) Support fixing hole (6) Side panel (7) Leveling foot (8) Rear door In the figure, D is the depth of the cabinet. It can be 1000 mm, 1100 mm, or 1200 mm. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 48 PE cables, Φ43 mm In the figure, D is 897 mm, 997 mm, and 1097 mm respectively corresponding to the depth of the cabinet (1000 mm, 1100 mm, and 1200 mm). Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 49: Unpacking

    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. ----End 3.3 Installation Flowchart Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 50 Figure 3-13 Installation flowchart Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 51: Checking The Pressure

    Step 3 Take out the desiccant bag in the inner side of the post in the lower right corner of the rear door. Step 4 Open the exhaust valve shown in Figure 3-15 to exhaust gas through the leather hose. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 52: Installing Water Pipe Adapters

    If gas emits, the system is normal. Slowly open the exhaust valve to discharge nitrogen and close the valve when there is no airflow through the valve.  If no gas emits out of the valve, contact Huawei technical support. Figure 3-15 Checking the pressure ----End...
  • Page 53 For external threads, apply thread sealant to the third to second last thread circles counting from the pipe outlet inward. For details, see (5) in Figure 3-17. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 54 Bottom pipe routing is used an example in Figure 3-17. The installation methods for bottom pipe routing and top pipe routing are the same. Step 3 Reinstall the side panels. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 55: Removing The Pallet

    Reinstall the side panels after the cabinet is moved to the specified position. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 56: Securing The Netcol5000-C

    The installation scenarios are classified into anchored installation and non-anchored installation on ESD floors. The support that meets requirements has been prepared. If not, prepare the support according to the following contents. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 57 M12x60 The length (L) of the support (L) is equal to the depth of the cabinet. Procedure Step 1 The procedure for non-anchored installation on an ESD floor is as follows: Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 58 A cabinet leg can be adjusted within a range of 0–8 mm. Install the air baffle by using four M10 bolts available in the accessories. The required torque is 30 N· m. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 59 M12 and the required torque is 50 N· m. The four bolts connecting the air baffle and cabinet are M10 and the required torque is 30 N· m. Figure 3-23 Securing the smart cooling product to the support ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 60: Combining Cabinets

    Ensure that the vertical distance between each cabinet top and the floor is 2000 mm (tolerance ± 2 mm) and that all cabinet tops are on the same plane. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 61: Optional) Removing Transportation Fasteners

    3.10 (Optional) Relocating the Air Deflector Context Relocating the air deflector can change the direction of supply air. Perform the following procedure to change the position of the air deflector if required. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 62: Connecting Pipes

    (3) and (4) Figure 3-26. ----End 3.11 Connecting Pipes The humidifier water inlet pipe connects to running water or any other water supply system, and the drainpipe connects to the drainage system. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 63: Optional) Installing The Humidifier Water Inlet Pipe

    Step 2 Apply sealing glue to the adapter threads, and install the adapter at the water inlet pipe connector. Step 3 Connect pipes to the adapter and verify that the connections are secure. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 64: Connecting Condensate Drainpipes

    In the cabinet, fasten the pipe to vertical pillar of rear door with cable ties. Procedure Step 1 Unfasten the water pump drainpipe and pull it out of the hole at the bottom (or the top) of the cabinet. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 65: Connecting The Automatic Condensate Drainpipe

    3.11.2.2 Connecting the Automatic Condensate Drainpipe Context The automatic drainpipe can be a rubber hose, PPR pipe, or aluminum plastic pipe. The following illustrates the connection methods. Procedure  Connect the rubber hose. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 66 Fully wrap the drainpipe with thermal insulation foam.  Connecting a PPR or aluminum plastic pipe Remove the plug, as shown by (1) in Figure 3-30. Figure 3-30 Connecting a PPR or aluminum plastic pipe Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 67: Connecting The Water Inlet Or Outlet Pipes

    Step 3 Insert the lower end of the water pipe adapter into the rubber hose, and tighten the hose clamp using a 5 mm hex key. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 68: Leakage Test With Nitrogen

    The glue width at the two ends must be greater than the thickness of the insulation foam. ----End 3.12 Leakage Test with Nitrogen Prerequisites Leakage test with nitrogen is required after the pipes are connected. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 69 Step 2 Connect a pressure gauge, reducing valve, and nitrogen cylinder to any one of the needle valves. Inject 0.8 MPa (when the pressure is stable) nitrogen, and leave them for 24 hours. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 70: Filling Water To Exhaust Air

     If the pressure is stable, wrap all water pipes and connectors with thermal insulation foam. 3.13 Filling Water to Exhaust Air Prerequisites Leakage test with nitrogen has been completed. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 71: Cable Connections

     When laying out cables, route all signal cables (such as the equipotential PE cable, indoor unit communications cable, and T/H sensor cable) inside the equipment through corrugated pipes. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 72: Electrical Ports Of An Indoor Unit

    (11) X3.3 and X3.4 standby (12) FAN+ positive fan power input L, N power input L, N wiring terminal (13) FAN- negative fan (14) Power supply unit (15) PE1 ground screw wiring terminal (PSU) Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 73: Connecting An Equipotential Pe Cable

    The resistance between the equipotential PE cable and the ground is 0.1 ohm. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 74 The resistance between the equipotential PE cable and the ground is 0.1 ohm. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 75: Connecting Power Cables

    Check that the voltage is less than 1 V between wires by using a multimeter before connecting power cables. Context The power cables can be routed from the top or bottom. Choose an appropriate cabling mode based on the site conditions. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 76 (2) Ground screw PE2 (3) Ground screw PE3 (for user) (4) Ground screw PE4 (for user) (5) Common power AC input switch QF1 (6) Standby power AC input switch QF2 (7) Power selection switch Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 77 Crimp the cables firmly and ensure that they are not loose after pulling.  If the cables do not meet the recommended specifications, you need to prepare terminals by yourself. Figure 3-41 OT terminal (A) Cable core (B) Cable (C) OT terminal Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 78 Figure 3-42 Cord end terminal (A) Cord end terminal (B) Cable core (C) Cable Step 3 Connect the power cables from the top or bottom. Figure 3-43 Connecting power cables (top cabling) Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 79 Step 5 Check that the cable connections are secure.  If the cable connections are loose, fasten the connections and perform Step  If the cable connections are secure, perform Step Step 6 Reinstall the cover. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 80: Optional) Installing A T/H Sensor

    3-46. In other scenarios, if drilling holes is allowed onsite, drill two M4 screw holes with an interval of 88 mm. If drilling holes is forbidden onsite, bind the sensor to the door or column. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 81 Position Address Name No. 1 No. 2 No. 3 No. 4 No. 5 No. 6 Cold aisle Cold aisle 1 Cold aisle 1 Cold aisle 1 Hot aisle Hot aisle 1 Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 82: Teamwork Networking And Monitoring

    (1) J73DOWN (2) J73UP (3) DIP switch The NetCol5000-C with main control board 1 uses the software of V100R001, and NetCol5000-C with main control board 2 uses the software of V100R002. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 83 J73DOWN of the unit to the J73UP of the second unit, and connect J73DOWN of the second unit to the J73UP of the third unit. All units that require teamwork can be connected in this way. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 84 3.14.6 Teamwork Networking and Monitoring defines the pins of a Y-split cable. Figure 3-53 shows the Y-split cable connection for teamwork control. Figure 3-51 Y-split cable Figure 3-52 Pin definition of a Y-split cable Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 85 When teamwork mode is not deployed, remain in OFF.  When teamwork mode is deployed, toggle switches on the main control boards of the first and last units to ON and other remains in OFF. Remaining in ON. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 86: Optional) Connecting An Fe Monitoring Cable

    Check that power cables and signal cables are correctly connected, protected in corrugated pipes, and bound securely. Check that power cables are routed separately from signal cables to avoid interference from strong currents on signal cables. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 87: Acc Introduction

    USB status in the status bar indicates that the USB flash drive is successfully connected to the display panel. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 88: Menu Hierarchy

    Admin, Engineer, or Operator, and can tap the icon to log out. 4.2 Menu Hierarchy Figure 4-2 shows the hierarchy of the controller menu. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 89 Manually diagnoses each component. − − Calibrates the sensor/touch screen. − Exports data and upgrades the system.  About Checks the model, manufacturer, monitoring version, detail version information, and electronic label of the ACC. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 90: Power-On Commissioning

    Step 3 Set system parameters and tap Finish, as shown by (3) in Figure 4-3. Step 4 The system displays a dialog box for confirming the rated voltage. Tap Yes after confirmation, as shown by (4) in Figure 4-3. ----End 4.3.2 Initial Configuration Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 91: User Right 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 92: Start And Shutdown

    Log in as the Admin or Engineer user to perform the following operations:  Set T/H control type.  Set Temp control mode.  Set cold aisle sensors 1, 2, and 3, and hot aisle sensors 1, 2, and 3. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 93 Temp control Controls the Average: Select Average if the mode temperature inside the temperature is to be controlled based on room or aisles based the averaged data value collected by the Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 94: Setting Communications Parameters (Ip Settings)

    Context To set communications parameters, log in as the Admin, or Engineer user. Procedure Step 1 On the home screen, choose Settings > Comm Settings > IP Settings. Figure 4-7 displayed. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 95: Setting Communications Parameters (Modbus Settings)

    EMS with the corresponding IP address at the same time. You can set parameters for Modbus RTU and Modbus TCP on the Modbus setting screen. Figure 4-8 shows the screen for setting the Modbus communications parameters. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 96 If you set Connection mode to Server, the smart mode Server+client cooling product, as a server, supports one client connection and establishes communication.  If you set Connection mode to Client, the smart Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 97: Setting Snmp Parameters

    One smart cooling product supports concurrent access of up to 10 NMSs through SNMP. Procedure Step 1 On the home screen, choose Settings > Comm Settings > SNMP Settings. Figure 4-9 displayed. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 98 , and then click Submit. Figure 4-10 Setting read community Click the text box after Write Community, as shown in Figure 4-11. Set Write Community as planned, click , and then click Submit. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 99 4-12. Then click Figure 4-12 Adding user name and MD5 password Set DES Password and Confirm Password as planned, as shown in Figure 4-13. Then click Figure 4-13 Adding DES password Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 100 Step 7 Set SNMP trap parameters. Click Add under SNMP Trap. Set Trap Address as planned and Trap Port to the actual port number, and then click , as shown in Figure 4-16. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 101 Figure 4-17 shows successful file export. Before using a USB flash drive, ensure that its data has been scanned by antivirus software and is secure. Figure 4-17 Exporting a MIB file successfully Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 102: Setting Teamwork Control Parameters

    After the chilled water storage process is complete, the chiller controls the temperature of chilled water as instructed by the iCooling. If the system does not have this function, contact Huawei technical support. ...
  • Page 103 (1 to 32 can be products in this group. set). Number of Number of running The master unit running units units in a group. The assigns the devices to Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 104  When the Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 105 The Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 106 (0.1–8° C) after the chiller water chiller linkage function temperature and the is enabled. water temperature stability. It is recommended that you retain the default Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 107 15° C. Low limit for Indicates the lower limit Note: Water 10° C water temp on the chiller temperature settings adjustment water are important. Verify Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 108 Table 4-7 Note for the screen Parameters Note ON/OFF/NA On indicates the smart cooling product is started and Off indicates the smart cooling product is shut down. NA indicates the smart cooling product is offline. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 109 Ground color: red, Red indicates that a critical alarm is generated, as bright gray shown in Bright gray indicates that the device is operating without any critical alarms, as shown ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 110: Optional) Setting Alarm Parameters

    The content described in this section is optional. To set whether to report an alarm, or set the time delay duration or threshold, follow the instructions in this section. The enabling functions include the following three choices: − Allow Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 111 Figure 4-19 displayed. Figure 4-19 Setting alarm parameter 1 Step 2 Tap Delay following Supply-air HT. Step 3 Set the value to 5 and tap , as shown in Figure 4-20. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 112: Commissioning Guide

    The screen for entering the diagnostic mode:  Components are interlocked. Therefore, buttons for turning on or off certain components are in gray, indicating that operations of the components are not allowed. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 113: Commissioning Smart Cooling Product Components

    Step 2 Tap On for Electric heater, as shown in Figure 4-22. Figure 4-22 Starting up the electric heater After the electric heater is started, the Off following the Electric heater turns into On. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 114: Maintenance Guide

    You can view the humidity from (humidity set point - 5%) to (humidity set point + 5%) at least, and from (humidity set point - 50%) to (humidity set point + 50%) at most. Specific humidity fluctuation range displayed varies according to different models of smart cooling products. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 115: Querying Alarms

    ID to view causes of the alarm and methods used to clear the alarm. Click each alarm to open the Details page, which contains Alarm Name, Severity, Location, Cause ID, SN, Possible Causes, and Procedure for the alarm, as shown in Figure 4-25. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 116: Querying Logs

    Logs record operations on the system. Maintenance and technical service engineers can query logs to locate operations on the system.  To query logs, log in as the Admin, Engineer, or Operator user. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 117: Querying Device Runtime

    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 indoor fan, electric heater, humidifier, and chilled water valve is displayed. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 118: Querying System Parameters

    Enter the Operating Info screen that displays the major system parameters such as the current detected temperature and humidity.  Enter the Device Details screen and then enter the menu of a specific component. All parameters for the component are displayed. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 119: Querying Version Details

    Figure 4-32. Figure 4-32 Chilled water valve parameters 4.4.1.7 Querying Version Details Procedure Step 1 On the home screen, select About. Figure 4-33 is displayed. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 120: Changing Parameters

    Info screen, or T/H Board on the About > E-label screen does not show the information of these T/H boards. ----End 4.4.2 Changing Parameters 4.4.2.1 Deleting Historical Alarms Context To delete historical alarms, log in as the Admin user. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 121: Deleting Logs

    Step 1 On the home screen, choose Maint > Log Maint > Delete Logs > Yes to delete all the logs. After logs are deleted, the log deletion operation is recorded in the first log that is displayed. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 122: Exporting Data

    Step 2 Tap the file where the user saves active alarms in the Select Path dialog box and tap Next. Then tap Yes in the displayed dialog box shown in Figure 4-37. Enter the Processing Info screen shown in Figure 4-38. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 123 Tap OK. Figure 4-39 Screen showing that data export has succeeded Step 4 Tap Maint > USB Operations > Remove USB to remove the USB flash drive in safe mode. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 124: Clearing The Runtime

    –2° C.  To calibrate a sensor, log in as the Admin or Engineer user. Procedure Step 1 On the home screen, choose Maint > Sensor Adjust. Figure 4-41 is displayed. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 125: Calibrating The Screen

    When calibrating the screen by tapping the screen, on the home screen, tap Maint > Screen Calib to enter the following screen, as shown in Figure 4-42. Figure 4-43 displayed when the screen calibration is complete. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 126 After 15 seconds, a dialog box indicating Are you sure you want to calibrate the screen? If you do not click Yes or No, calibration will start automatically 10 seconds later. is displayed, as shown in Figure 4-44. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 127: Faq

    Password. You can also set LCD contrast, LCD saturation, LCD brightness and LCD backlight off delay on the screen.  To set the preceding parameters, log in as the Admin, Engineer, or Operator user. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 128: How To Change A Password

    Step 1 On the home screen, choose Settings > User Settings to enter the User Settings screen, as shown in Figure 4-46. Figure 4-46 User settings screen Step 2 Tap Password to enter the password changing screen, as shown in Figure 4-47. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 129: Restoring Factory Settings

    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 S2 on the main control board. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 130 If you do not confirm the operation within 30s, the dialog box disappears, and the process of restoring factory settings is terminated. Step 6 Disconnect the main power supply of the device. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 131: How To Troubleshoot The Fault When The System Is In Upgrade Mode

    Step 2 If The e-label board is not connected or the e-label is incorrect. Please connect or replace the e-label board. is displayed, power off the system, reconnect or replace the E-label board, and then power on the system. Step 3 If the fault persists, contact Huawei technical support. ----End 4.5.6 How to Manually Clear Alarms Context ...
  • Page 132: How To Enable A Humidity And Temperature Sensor

    Step 1 On the home screen, choose Settings > System Settings > T/H Sensor. Step 2 Set Cold-aisle sensor 1 and Cold-aisle sensor 2 to Enable, as shown in Figure 4-50. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 133: How To View Teamwork Control Information

     Required humidity: indicates the total dehumidification and humidification requirements of the group and is used as a reference for enabling the dehumidification and humidification mode by the master device. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 134: Which Parameters Are Restored To Default Values After Default Settings Are Operated

    Step 1 Log in to the controller over SSH. Step 2 Specify User name and Password. The preset user name and password are enspire and Changeme respectively, as shown in Figure 4-52. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 135 If a user enters incorrect passwords for five times, the user's account will be locked for 10 minutes. Step 3 After successful login, enter su and Changeme to switch to the root user, as shown in Figure 4-53. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 136 Figure 4-54. Figure 4-54 Changing the password The new password must meet complexity requirements. When you are changing the password, you can press Ctrl + C to stop this operation. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 137: Rectifying Faults Of The E-Label Identification Board

    ACC V100R001C20SPC300 version is used as an example to describe the prompt messages on the screen. During actual operations, the version in use prevails. Procedure Step 1 Check whether strong electromagnetic interference exists around the E-label identification board. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 138: How To Import A Certificate And Key

    If yes, continue with Step Step 4 Check whether cables are properly connected.  If yes, contact Huawei technical support to replace the E-label identification board.  If no, reconnect or replace cables and perform Step Step 5 Reconnect the main power supply of the smart cooling product.
  • Page 139: Powering Off And Maintaining A Smart Cooling Product In Icooling Linkage Mode

    Step 3 Power off and maintaining smart cooling product No. 3. Step 4 Respectively change the values of Teamwork unit address back to 4 and 5 for smart cooling products No. 4 and No. 5. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 140 The master unit inside a micro module reports the "iCooling linkage A/C abnormal" alarm, which triggers the "L0/L1 linkage abnormal" alarm in the NMS.  The master units inside other micro modules report the "iCooling linkage condition not met" alarm. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 141: Power-On Commissioning

    Step 1 After the main power supply is connected, use a multimeter to check whether the input voltage is within the normal range. 2.5 Technical Specifications shows the operating voltage range of the system. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 142: Setting Parameters

    If the green indicator is off and the system is working properly, the secondary power supply is serving the equipment. ----End 5.3 Setting Parameters 4.3.2 Initial Configuration. 5.4 Commissioning Procedure Context Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 143 Ensure that water is drained smoothly and the pipe is free from leakage. Set the humidifier input to 0% and press the drainage switch to OFF, as shown by (5) in Figure 5-2. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 144  If pump 1 or 2 starts, perform Step  If no pump starts, troubleshoot it by following the relevant instructions in Troubleshooting. After pump 1 or 2 starts, perform Step Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 145: Follow-Up Procedure

    Install the cover on the primary power wiring panel and secure the cover using screws. Install the air filters. When installing an air filter, keep the arrow mark on the air filter outwards. Close and lock the rear door. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 146: System Operation And Maintenance

    Pay attention to the safety symbols on the equipment and all the safety instructions in this document. The safety precautions given in this document do not cover all the 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 147: Routine Maintenance Item

     Protective measures must be taken during electrical maintenance, such as wearing insulation gloves or shoes.  Exercise caution during professional maintenance. For details, consult Huawei technical support. Routine Maintenance Frequency Perform routine maintenance monthly, quarterly, and semiyearly. 6.1.2 Routine Maintenance Item Table 6-1 describes the routine maintenance requirements for the NetCol5000-C.
  • Page 148 Diagnostic Mode >  Disconnect the Enter from the main humidifier water screen, and set injection hose and Humidifier to 50%. clear the blockage in Check whether water the hose. can be injected Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 149 Check that the chilled instructions in water valve handle Troubleshooting. automatically turns to the maximum opening. □Passed. Check that no foreign Clean the foreign matters. Semi-annual matter exists in the □Failed. fan. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 150 □Failed. temperature sensor to 1° C or humidity calibrate the humidity deviation is greater than and temperature 5%, calibrate or replace sensors inside and the humidity and temperature sensor. For Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 151: Alarm Reference

    Semi-annual fins are not pushed organize the fins that are □Failed. down. pushed down. Figure 6-1 Removing the water pan filter 6.2 Alarm Reference Table 6-2 describes the NetCol5000-C alarm reference. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 152 1. The cables to the 1. Check cables to the a004 Return-air 3 Major The alarm is T/H sensor are temperature sensor. humid invalid generated. loose or damaged. Calibrate or replace Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 153 1. Maintain or replace a025 Air filter Warning The alarm is blocked. the air filters. blocked generated. Shut down the heating 2. The differential 2. Replace the press switch is differential press Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 154 5. The condensate pan and water pan pump is blocked. filter. After the fault is solved, tap Maint > Performance Maint on Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 155 4. Configure one smart units have the cooling product unit same address. as the master unit. 4. No smart cooling 5. Power on the master product unit is unit, or configure Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 156 4. Calibrate or replace different from the the abnormal actual temp. sensors. 5. The air filters are 5. Maintain or replace blocked. the air filters. 6. The CW valve is 6. Maintain or replace Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 157 CW. capacity is 7. Maintain or replace insufficient. the faulty CW valve. 6. CW flow is insufficient, or the supply water temp is high if cooling source is CW. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 158 3. Maintain or replace pump is faulty, or the condensate the drainage pump. capability 4. Clear the obstacles decreases if in the drainpipe of configured. the condensate 4. The drainpipe of pump. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 159 1. Check the power a081 Power Major The alarm is voltage is lower supply voltage. undervolt generated, and than the power 2. Maintain or replace undervolt alarm NetCol5000-C the voltage jumper. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 160 C is faulty. the faulty device on disconnect generated, and loop C. 2. The loop C fuse is NetCol5000-C loose, aged, or 2. Maintain or replace shuts down. disconnected. the fuse. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 161 1. The load is low. 1. Please consult a093 High humidity Warning The alarm is Huawei technical generated. 2. The T/H sensors support. are located in inappropriate 2. Adjust the position Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 162 CW. generated. supply-water LT 2. Adjust the alarm threshold. supply-water LT 2. The supply-water alarm threshold. HT alarm 3. Calibrate or replace threshold is the supply water inappropriate. temp sensor. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 163 Cold-aisle Major The alarm is around the T/H water from the T/H 1/2/3 temp generated. sensor, which sensor. invalid leads to a detection 2. Maintain or replace fault. the T/H sensor. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 164 4. Maintain or replace board is faulty. the control board. 1. There is no A/C 1. Ensure a A/C master a114 iCooling Major The alarm is Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 165 2. Maintain or replace smart cooling and does not the monitoring product and the change the mode system. If the fault Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 166: Troubleshooting

    2. The cables to the the primary power humidification primary power supply. functions. supply is loose. Figure 6-2 Fuse location 6.3 Troubleshooting Table 6-3 describes the common faults of the NetCol5000-C and handling methods. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 167 3. Check the pipes and weld the pipe blocked by foreign or fasten related bolts if the pipes matter in the water pan. leak. 4. Clean the water pan filter and Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 168 NetCol5000-C is surfaces of the 2. Adjust the temperature and excessively humid. front or rear humidity set points. panels. 2. The temperature set point is set to a much smaller value. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 169: Parts Replacement

    A component in the electric control box needs to be replaced.  A spare and functional component is available. Context Recommended tool: Phillips screwdriver (M6) Preparations: The rear door is removed, and the device is powered off. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 170 2 (16) Terminal fastener (17) PSU (18) Jumper cap J11 (19) A2 power supply (20) DIP switch SW1 (21) TC transformer backplane (22) M1 ground screw (23) EL electronic label Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 171 1 relay 2 (7) FU1 transformer input (8) FU2 transformer output (9) FU3 water pump fuse fuse fuse (10) A2 power backplane (11) M1 ground screw (12) EL electronic label Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 172 Step 1 Unlock the rear door and open the door rightwards. Step 2 Open the air filter clip and remove the filter, as shown by (1) and (2) in Figure 6-6. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 173 Step 7 Pull the handle on the cover to remove the cover, as shown by (7) in Figure 6-6. Step 8 Replace the faulty component in the electric control box. Step 9 Install the electric control box in an inverse order. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 174: Replacing An Air Filter

    Preparations: The device is only maintained from the rear door, and is powered off. Procedure Step 1 Turn off all AC input switches. Step 2 Open the rear door. Step 3 Remove the air filters. Step 4 Remove the condensate pump. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 175 Step 5 Install a new condensate pump and connect cables in an inverse order. Do not reversely connect the input cables to the pump. Step 6 Install the air filters. Step 7 Close and lock the rear door. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 176: Replacing A Fan

    Step 1 Unlock the front door and open the door rightwards. Step 2 Switch off the circuit breaker for the faulty fan. Step 3 Remove the cables from the faulty fan, as shown by (1) in Figure 6-8. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 177 Step 6 Connect the cables to the fan. Step 7 Close and lock the front door. Step 8 Tap Maint > Performance Maint on the home screen and clear the fan runtime. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 178: Replacing An Electric Heater

    Step 3 Remove the two cable plugs from the sensing bulb. Step 4 Remove the four M4 screws on the electric heater using a Phillips screwdriver and remove the electric heater. Figure 6-9 Removing the electric heater Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 179: Replacing A Humidifier Cylinder

    Step 3 Tap Shutdown on the main screen and power off the device. Then switch the button back to OFF. Step 4 Unfasten the screws on the evaporator hose clamp to loosen the evaporator hose, as shown by (1) in Figure 6-10. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 180 Step 9 Remove the cable plug on the top of the humidifier cylinder using a socket wrench, as shown by (6) in Figure 6-10. Step 10 Install a new humidifier cylinder in an inverse order. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 181: Replacing An Air Exhaust Temperature Sensor

    Procedure Step 1 Open the front door. Step 2 Use a Phillips screwdriver to remove the R-shaped pipe clip that secures the air exhaust temperature sensor on the front door post. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 182: Replacing An Air Intake Temperature Sensor

     A spare and functional temperature sensor is available. Context Temperature sensor can be replaced with power on. Recommended tools: diagonal pliers and cable ties. Preparation: maintain from the rear door. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 183 Step 6 Reconnect the waterproof connector to the sensor cable. Step 7 Install the air filters. For details, see 5.5 Follow-up Procedure. Step 8 Close and lock the rear door. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 184: Replacing A Water Inlet Or Outlet Temperature Sensor

    Step 3 Remove the water inlet or outlet temperature sensor probe. Figure 6-13 Position of water inlet and outlet temperature sensors (1) Water inlet temperature sensor (2) Water outlet temperature sensor Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 185: Replacing A Rectifier

    Step 3 Push up the buckle button on the rack, as shown by (1) in Figure 6-14. If the rectifier is blocked by cable X101 or X102, you can remove terminal X101 or X102 and then reconnect it after the replacement is complete. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 186 Step 7 Install the air filters and rear door. Step 8 Power on the rectifier and check whether the rectifier works properly. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 187: Replacing A Water Valve Actuator

    Insert the hex key on the handle into the hole in the front of the actuator, as shown by (2) Figure 6-15. Turn the handle in the direction shown by (3) in Figure 6-15 to loosen the screw and remove the actuator. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 188 Figure 6-17. Fit in the connecting plate with the screws on the left, as shown by (3) in Figure 6-17. Keep the handle upwards, as shown by (4) in Figure 6-17. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 189: Replacing A Float

    The float needs to be replaced.  The spare and functional air filters are available. Context Recommended tool: open-end wrench. Preparations: maintain from the rear door, and power off the device. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 190 Ensure that the float is level and the ball is upright. Step 7 Install the air filters. Close and lock the rear door. Step 8 Tap Maint > Perform Maint on the home screen and clear the float runtime. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 191: Replacing A Controller Panel

    Step 2 Remove cables from the controller panel. Step 3 Remove the controller panel. Be aware of the fasteners when pushing the controller panel from the right or left side to prevent damaging the controller panel. Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 192 Step 4 Install the new controller panel in the original position on the front door in an inverse order. Step 5 Connect the control signal cables to the controller panel. Close and lock the front door. ----End Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 193: A Acronyms And Abbreviations

    A Acronyms and Abbreviations Acronyms and Abbreviations Controller Area Network Computational Fluid Dynamics Electronic Commutation fast Ethernet Negative Temperature Coefficient Proportional, Integral, and Derivative Power Supply Unit RCCB Residual Current Circuit Breaker Simple Configuration Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 194: B Glycol Adding Requirements

    –20° C to –15° C –25° C –25° C to –20° C –30° C –30° C to –25° C –35° C –35° C to –30° C –40° C –40° C to –35° C –45° C Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.

Table of Contents