Page 1 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual Issue Date 2024-01-30 HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Page 2 Notice The purchased products, services and features are stipulated by the contract made between Huawei Digital Power Technologies Co., Ltd. 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. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 4 Updated 7 Routine Maintenance. 2020-10-28 ● Updated 2.1 Model Number Description. ● Updated 5.7 Charging Refrigerant. ● Updated 4.11.5 (Optional) Connecting Teamwork and Monitoring Communications Cables. ● Updated FAQ. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 5 ● Added repainting information. ● Updated the safety information. ● Added WebUI parameter description. 2019-10-10 ● Added WebUI information. ● Updated the software screenshots. 2019-05-31 This issue is the first official release. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 6: Table Of Contents
4.5 (Optional) Concrete Platform Scenario........................45 4.6 (Optional) Steel Base Scenario............................50 4.7 Checking the Nitrogen Pressure............................53 4.8 Installing an Equipotential Ground Cable or Ground Lug..................54 4.9 Installing Air Ducts................................55 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 7 5.9 (Optional) Powering Off the Unit..........................119 5.10 Checking After Commissioning........................... 120 6 WebUI............................ 121 6.1 Preparations and WebUI Login............................121 6.2 Introduction to the WebUI.............................. 123 7 Routine Maintenance......................125 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 8 11.3.4 How Do I View Component Status?........................175 11.3.5 How Do I View System Parameters?........................176 11.3.6 How Do I View Version Information?........................176 11.3.7 How Do I View the Service Information?......................177 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 9 B Physical Ports........................190 C Cleaning the Unit........................191 D Repainting the Unit......................192 E Maximum Water Consumption..................198 F Cooling Component Layout....................200 G Acronyms and Abbreviations................... 201 H Electric Diagrams........................203 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd. viii...
Page 10: Safety Information
Equipment damage due to force majeure such as earthquakes, floods, volcanic eruptions, debris flows, lightning strikes, fires, wars, armed conflicts, typhoons, hurricanes, tornadoes, and extreme weather conditions ● Operation beyond the conditions specified in this document Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 11: Personal Safety
D ANGER During operations, use dedicated insulated tools to prevent electric shocks or short circuits. The insulation and voltage resistance must comply with local laws, regulations, standards, and specifications. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 12 – Trained personnel: personnel who are trained in technology and safety, have required experience, are aware of possible hazards on themselves in Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 13: Electrical Safety
WARNING For the equipment that needs to be grounded, install the ground cable first when installing the equipment and remove the ground cable last when removing the equipment. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 14 (The marks must cross the edges of the bolts.) ● After the installation is complete, ensure that protective cases, insulation tubes, and other necessary items for all electrical components are in position to avoid electric shocks. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 15 When selecting, installing, and routing cables, follow local safety regulations and rules. ● The flame spread rating of cables shall meet the UL 1581 VW-1 or IEC 60332-3-22 (ZB) or higher requirements. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 16 When touching the equipment and handling boards, modules with exposed circuit boards, or application-specific integrated circuits (ASICs), observe ESD protection regulations and wear ESD clothing and ESD gloves or a well- grounded ESD wrist strap. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 18 All cable holes must be sealed. Seal the used cable holes with sealing putty. Seal the unused cable holes with the caps delivered with the equipment. The following figure shows the criteria for correct sealing with sealing putty. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 19: Mechanical Safety
Otherwise, tipping or falling cabinets may cause bodily injury and equipment damage. WARNING When pulling equipment out of a cabinet, be aware of unstable or heavy objects in the cabinet to prevent injury. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 21 Personnel involving working at heights are not allowed to throw objects from the height to the ground, or vice versa. Objects shall be transported by slings, hanging baskets, aerial work platforms, or cranes. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 22 If a single ladder is used, the recommended angle for the ladder against the floor is 75 degrees, as shown in the following figure. A square can be used to measure the angle. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 23 Do not drag steel ropes and hoisting tools or bump hoisted objects against hard objects during hoisting. ● Ensure that the angle between two hoisting ropes is no more than 90 degrees, as shown in the following figure. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 25: Cooling System Safety
This also promotes resource sustainability. To recycle an old device, use a recycling collection system or contact the supplier. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 26: Product Description
Airflow mode D: down flow Power supply M: 380–415 V, 3 PH, 50 Hz Heater and 0: none humidifier types Packaging type A: standard pre-fab. module B: reinforced pre-fab. module Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 27: Product Composition
When you face the electric control box, the unit with the maintenance door on the left side is the left-open model, and the unit with the maintenance door on the right side is the right-open model. Figure 2-2 Appearance Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 28 (6) No. 2 maintenance (7) Condensate (8) Spray drainpipe drainpipe 1 door drainpipe 2 (9) Spray water refill (10) Outdoor air (11) No. 3 pipe intake vent (on the maintenance door side) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 29: Physical Ports
Table 2-1 Air vents and pipe ports Type Name Specifications Quantity Air vent Outdoor air 2130 mm x 1310 intake vent (at the end) Outdoor air 500 mm x 1200 intake vent (on the side) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 30 AC3 input L2 (Generally, only AC1 and AC2 are AC3 input L3 used. If the compressor needs AC3 input N to be powered separately, AC3 should be connected.) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 31: Display Module
Figure 2-5 Display module (1) Indicator (2) I2C/12V (reserved) (3) DP (display port) port, connected to the (4) SW (reserved) main control module Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 32 ● Teleadjust: adjusts the temperature, humidity, and alarm threshold. ● Teleindication: generates alarms for the startup/shutdown, overvoltage/undervoltage, high/low return air temperature, high/low return air humidity, air filter normal/blocked, and fan normal/faulty state. ● Telecontrol: controls startup/shutdown. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 33 The display panel is protected by a multi-level password protection mechanism to avoid misoperation. ● The password is verified each time the system is started or shut down to ensure system operation security. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 34: Main Control Module
The unit is shut down. Blinking green The unit is started. Alarm indicator (ALM) No alarm is generated, or a warning has been generated. Steady red There is a major or critical alarm. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 35 ● Connects a USB flash drive to export data, import and export configuration files, import certificates and keys, and upgrade the version. NOTE This port is protected by a security mechanism. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 36: Working Modes
Compressor Status Status Dry mode (fan) Wet mode (fan + spraying) Dry mode+Auxiliary cooling mode (fan + compressor cooling) Wet mode+Auxiliary cooling mode (fan + spraying + compressor cooling) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 37 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual 2 Product Description Figure 2-7 Dry mode Figure 2-8 Wet mode Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 38 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual 2 Product Description Figure 2-9 Dry mode+Auxiliary cooling mode Figure 2-10 Wet mode+Auxiliary cooling mode Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 39: Product Specifications
Running weight NetCol8000-E220DM0AA: 5750 kg NetCol8000-E220DM0BA: 6300 kg 1: Tested under rated working conditions (return air: 38ºC/25%RH, indoor static pressure: 150 Pa, outdoor static pressure: 50 Pa, outdoor temperature: 15°C) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 40: Operating Environment Specifications
10°C. If servers are not evenly deployed and the difference between the intake and exhaust air temperatures of the servers is less than 10°C, the cooling capacity of the unit will decrease and its power will increase. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 41 If a leakage circuit breaker is required by the customer or local regulations, select the residual current circuit breaker (RCCB) require that is insensitive to single-phase DC pulsation and transient impulse ments current. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 42 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual 3 Product Specifications Item Specifications Note: If the requirements are not met, contact technical support for an optimized solution. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 43: Installation Guide
It is recommended that the strength level of the concrete foundation be higher than C20. ● The surface of the concrete foundation should be flat and clean. Checking the Drainage Capacity There should be drainage ditches with sufficient drainage capacity. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 44: Layout Principles
Install the unit strictly according to the design drawing and reserve space for maintenance and ventilation. Figure 4-1 Maintenance space (unit: mm) (1) Wall (2) Indoor air supply vent (3) Electric control box Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 45: Tools
Insulated gloves Protective gloves Antifreeze gloves Safety harness Safety belt Hoisting and Transporting Tools Crane Steel hoisting rope Lifting sling and lifting Jack and lifting eye Electric forklift Lever Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 46 Hammer drill bit (10"/15"/18") wrench (Φ22) Claw hammer Electric Step ladder Marker screwdriver Soft measuring Steel measuring Long measuring Level tape tape tape Square Level gauge Vacuum cleaner Ink line marker Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 47 ● Maximum gap: 0.5 mm ● Pressure resistance: above 1.6 MPa ● Compliant with industry standards b: Temperature resistance 85°C at least for thermal insulation foam sealant or sealing tape Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 48 RJ45 crimping tool Insulation tape Heat shrink tubing Heat gun Cable tie Commissioning tools Electronic balance Rubber hose (5 Pressure gauge (2 Nitrogen PCS) PCS) Multimeter Clamp meter Thermocouple temperature sensor Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 49: Materials
12 kg of refrigerant has been prefilled in the NetCol8000-E220DM0BA before delivery. You need to fill 4 kg of refrigerant (2 kg for each compressor system) onsite. Verify that the refrigerant is authentic in the following ways: Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 50 1.39 2.33 0.78 1.43 2.39 0.81 1.47 2.45 0.84 1.51 2.51 0.87 1.56 2.57 1.60 2.63 0.93 1.65 0.96 1.69 2.76 0.99 1.74 2.83 1.02 1.79 1.05 1.84 2.97 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 51: Water Refill Pipe And Drainpipe
Quantity Spray water refill pipe G 3/4 inch external thread connector Spray drainpipe G 1–1/2 inch internal thread connector Condensate drainpipe G 3/4 inch internal thread connector 4.3.3 Cables Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 52 (L1/L2/L3/N) + 35 power cable (PE) Standby input power cable: 4 x 70 mm (L1/L2/L3/N) + 35 (PE) Recommended 4 x 20 AWG outdoor copper cable air damper cable Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 54: Optional) Concrete Platform Scenario
Phillips insulated torque screwdriver, jack, steel hoisting rope, level, level gauge, hammer drill, angle ruler, claw hammer, vacuum cleaner Materials: equipment to be hoisted, expansion bolt, angle steel bracket, and shock absorption pad Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 55 NO TICE When hoisting the equipment, ensure that the four corner fittings of the equipment are aligned with the marked mounting positions for corner fittings on the concrete platforms. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 56 Figure 4-4 Marking mounting holes for a right angle bracket Step 7 Use a hammer drill to drill holes in the four mounting hole positions for the right angle brackets and install expansion bolts. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 57 Step 8 Place the shock absorption pads at the corresponding positions of corner fittings on the concrete platforms. Step 9 Secure the equipment to the concrete platforms using four right angle brackets. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 58 Bolts and nuts Partially tighten them Bolts and nuts are using a wrench. tightened. Maintenance door Open and close each All doors can be door once. smoothly opened and closed. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 59: Optional) Steel Base Scenario
Phillips insulated torque screwdriver, jack, steel hoisting rope, level, level gauge, hammer drill, angle ruler, claw hammer, vacuum cleaner Materials: equipment to be hoisted, expansion bolt, angle steel bracket Procedure Step 1 Prepare a steel base. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 60 (3) Rectangular tube (100 mm x 100 mm x 6 (4) Reinforced angle plate (right angle edge: 80 mm x 50 mm, 15 mm thick) (5) Expansion bolt (M16 x 150 mm) (6) 14B# channel steel Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 61 Figure 4-9 Hoisting the equipment Step 3 Turn the four M20 twistlocks in the base by 90 degrees to lock the equipment, and tighten the twistlocks using a torque wrench. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 62: Checking The Nitrogen Pressure
4.7 Checking the Nitrogen Pressure Procedure Step 1 Open the No. 2 maintenance door. Step 2 Check whether any of the needle valve bonnets shown in Figure 4-11 is missing by turns. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 63: Installing An Equipotential Ground Cable Or Ground Lug
(3) Liquid pipe needle valve 1 (4) Liquid pipe needle valve 2 ----End 4.8 Installing an Equipotential Ground Cable or Ground The equipment can be grounded using either ground lugs or ground cables. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 64: Installing Air Ducts
Motorized air dampers with the manual function must be used. The 2–10 V DC control AO air dampers are recommended. After shutting down the unit, ensure that the air dampers are closed. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 65: Installing A Supply Air Duct
The supply air duct is optional. Customers can purchase it from the supplier or prepare it by themselves. The following describes how to install a supply air duct provided by the supplier. Procedure Step 1 Remove the pedal. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 66 Step 2 Remove the eight screws that fasten the air vent baffle, and remove the air vent baffle. Figure 4-15 Removing the air vent baffle Step 3 Reinstall the pedal. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 67 Otherwise, condensate water may occur. Figure 4-17 Connecting the equipment to the air duct (1) Connection between the air duct and (A) Canvas sheet metal canvas (B) Canvas (C) Thermal insulation foam Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 68 Figure 4-18 Thermal insulation foam Step 8 Use M12 screws to secure the air duct. Figure 4-19 Securing an air duct (indoor installation scenario) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 69: Installing A Return Air Duct
You are advised to use foam boards. Use six screws to secure the horizontal board and four screws the vertical board. Drill holes at the return air vent by yourself. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 70 Cooling System User Manual 4 Installation Guide Figure 4-21 Installing a return air duct (1) Flexible connection (canvas or other (2) Hard connection (stainless steel, prepared materials, prepared onsite) onsite) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 71: Installing Pipes
Figure 4-22 Condensate drainpipe (including the water trap) (unit: mm) (1) PPR external thread (2) PPR equal-diameter elbow (3) Water trap maintenance connector (G 3/4 inch) port (4) PPR pipe (Φ25 mm) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 72 Figure 4-23 Spray drainpipe (including the water trap) (unit: mm) (1) PPR external thread (2) PPR equal-diameter elbow (3) Water trap maintenance connector: G 1-1/2 inch port (4) PPR pipe (Φ50 mm) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 73 (7) Spray drainpipe port (8) Spray drainpipe (including (9) Spray drainpipe the water trap) (10) Spray water refill pipe (11) Spray water refill pipe port Step 1 Install water traps. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 74 Install the two condensate drainpipes you prepared at the ports on the other end of the condensate drainpipes 1 and 2 (including the water traps) respectively. Figure 4-27 Installing a condensate drainpipe Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 75 Sealing Remove the paper protective film from the sealing putty. Seal the gaps between the water pipes and the devices using sealing putty after the pipes are correctly connected. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 76: Connecting Cables
● Connect the fan motor to the power supply with an overload protection device. ● Perform electrical tests before startup to check whether safety requirements are met. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 77 ● After installing cables, clean up the sundries inside the equipment, electric control box, copper cable, and other positions. Ensure that there is no dust or scraps inside and around the equipment and electric control box. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 78 (25) Signal cable terminal (26) Main control module (27) Backplane (28) Power module (29) SPD and voltage (30) Electric heater of the detection board FV1/2 low temperature component Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 79: Connecting Power Cables
UPS. Figure 4-32 Connecting power cables ----End Exception Handling ● Generally, only the active and standby power supplies are required. The following figures show the power supply systems. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 80 If you need to connect the compressor cooling system to the standby power supply, connect the other end of the jumper from the active power supply terminal to the standby power supply terminal. Figure 4-34 Adjusting jumper connection Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 81 Figure 4-36 Removing a jumper Figure 4-37 Power supply scenario 3 NO TE The unit does not detect the status of power input 3 when this power supply is used. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 82: Optional) Connecting Signal Cables
The equipment can be connected to a smoke sensor, remote startup/shutdown signal, common alarm signal, water sensor, and micro differential pressure sensor. The following operations use connecting a water sensor as an example. Context Figure 4-38 Signal cable terminal Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 83: Installing Air Dampers
Step 2 Cut off the cable tie on the interconnection terminal reserved at the air vent. Step 3 Connect the interconnection terminal of the actuator to the interconnection terminal reserved at the air vent of the unit. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 84 Figure 4-39 Positions of interconnection terminals reserved at air vents (1) Interconnection terminal reserved (2) Interconnection terminal reserved at the outdoor exhaust air vent at the indoor supply air vent ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 85: Optional) Connecting Teamwork And Monitoring Communications Cables
ELV cable tray, to reduce the impact of electromagnetic interference on teamwork communication. 4.11.5.1 Preparing a Network Cable Step 1 Crimp a network cable. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 86: Independent Networking
Select one of the following networking modes according to the actual situation. 4.11.5.2.1 CAN Teamwork + FE Monitoring Step 1 Connect teamwork and monitoring communications cables. Networking CAN Teamwork FE Monitoring Protocol Modbus-TCP/SNMP Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 87: Can Teamwork + Rs485 Monitoring
NMS as the monitoring system. Figure 4-42 Connecting communications cables ----End 4.11.5.2.2 CAN Teamwork + RS485 Monitoring Step 1 Connect teamwork and monitoring communications cables. Networking CAN Teamwork RS485 Monitoring Protocol Modbus-RTU Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 88 ● Connect the COM/FE port on the main control module of the last unit in each group to the RS485 port on the host. ● Customers can purchase the NetEco (an ECC is required) or a third-party NMS as the monitoring system. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 89: Optional) Connecting The T/H Sensors Outside The Unit
Step 2 Connect other T/H sensors outside the unit in series to the port of T/H sensor 1 outside the unit. Figure 4-44 Connecting T/H sensors in series Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 90 Cold aisle 5 temp/humid Cold aisle 6 temp/humid Hot aisle 1 aisle temp/humid Hot aisle 2 temp/humid Hot aisle 3 temp/humid Hot aisle 4 temp/humid Hot aisle 5 temp/humid Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 91: Removing The Transport Fasteners And Protective Covers
● Do not remove the bolts directly. ● Put away the removed transport fasteners so that you can reinstall them if the indoor unit is to be transported again in the container scenario. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 92 Step 7 Remove the elastic cord from the two floats. Figure 4-47 Removing the elastic cord Step 8 Remove the protective covers from the four air filters on the outdoor air intake side. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 93 ● Install air filters by referring to the direction instruction on the frame to ensure correct installation. Step 9 Open No. 3 maintenance door, remove the four screws from the air filter, and remove the air filter. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 94: Verifying The Installation
The foreign matter inside the cabinet such as □ Passed □ Failed desiccants, cable ties, stubs, dust, iron chips, copper wires, and aluminum chips are cleaned up. The fan is secured. □ Passed □ Failed Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 95 No open or short circuits, or incorrect connections occur in □ Passed □ Failed electrical loops. The power cables, signal cables, teamwork cables, and □ Passed □ Failed T/H sensor cables are connected as required. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 96 The needle valve plug is secured (torque of 0.45±0.05 □ Passed □ Failed N·m), and the valve bonnet is tightened. The pipes are not seriously bent. □ Passed □ Failed Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 97: Power-On And Commissioning
Step 5 If an external T/H sensor is connected, check that its cable connection and DIP switch settings are correct. ----End 5.2 Power-On Context CA UTION When powering on the unit, ensure that the ambient temperature is –20°C or above. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 98 Table 5-1 Preset passwords System User Preset Password Permission Description admin 000001 Can set all the menus. (administrator) operator (common 000001 Can only view parameters and set user) some parameters. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 99 Confirm with Huawei technical support before modifying parameters which cannot be modified by user operator. Otherwise, Huawei will not be liable for any consequences of the modification performed by the user. ● Only certified professionals are allowed to modify advanced parameters of smart cooling products.
Page 100 If a T/H sensor outside the cabinet is deployed in the hot aisle, enable the T/H sensor. Cold aisle This parameter can be set to Enable temperature or Disable. and humidity sharing Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 101 Set this parameter to On or Off based on the actual scenario. DO_1 Set this parameter based on the actual scenario. NOTE You are advised to retain the default value. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 102 NMS must be different. ----End Follow-up Procedure After power-on, choose Running > Device Details > Compressor on the home screen to view the compressor parameters and status. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 103: Home Screen
USB connection status indicates that a USB flash drive is connected to the USB port. Diagnostic mode status indicates that the system is in diagnostic mode. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 104: Initial Configuration
5.4 Initial Configuration Log in as the admin user (preset password: 000001) when setting initial parameters. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 105: Setting T/H Sensor Parameters
● Supply air: The value ranges from 15°C to 35°C. ● Cold aisle: The value ranges from 15°C to 35°C. ● Hot aisle: The value ranges from 18°C to 45°C. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 106 Table 5-3 Setting example Temperature Setpoint Lower Limit of Upper Limit of (°C) Humidity Setpoint (% Humidity Setpoint (% 24.7 23.1 21.7 20.4 19.2 16.9 15.9 75.3 70.9 66.9 59.5 56.1 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 107: Optional) Setting The Pressure Difference Control
Air-side difference pressure sensor type to 0–500 Pa. Step 2 Set Indoor fan control type to Pressure diff ctrl. Step 3 Change other parameters based on the following instructions. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 108: Optional) Setting Teamwork Parameters
The parameters in this section are for reference only. Set practical parameter values as required. Procedure Step 1 On the home screen, tap > Teamwork Settings to enter the Teamwork Settings screen. Figure 5-4 Teamwork Settings Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 109 ● Set Teamwork: Set parameters for all units in a teamwork group. Number of systems in Specifies the total number of units in this group. The this group value is an integer ranging from 1 to 32. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 110 24 time points in a day (0–23). Forced rotation Indicates whether to enable forced rotation regardless of the specified rotation time. After a forced rotation, the rotation period starts again. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 112 Step 4 On the home screen of the display module of any unit in the teamwork group, tap . If the teamwork networking succeeds, the teamwork topology of the unit in the group is displayed. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 113 ● Red indicates that the unit has generated a red/bright gray critical alarm, as shown in ● Bright gray indicates that the device is operating without any critical alarms. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 114: Setting Communications Parameters
Step 1 On the home screen, choose Settings > Comm Settings > Modbus Settings. Figure 5-6 Modbus Settings Step 2 Set the baud rate, communication address, and RS485 monitoring group. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 115: Setting Communications Parameters (Modbus-Tcp Protocol)
Step 1 On the home screen, choose Settings > Comm Settings > WAN IP Settings, and set the IP address, subnet mask, and gateway based on the actual plan. Figure 5-7 WAN IP Settings Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 116 Enter the actual IP address of the NMS. The IP addresses of the display board, client NMS, and server NMS must be unique. This parameter is configurable when Link mode involves Client. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 117: Setting Communications Parameters (Snmp Protocol)
Step 2 Set SNMP Version based on site requirements, and then tap Submit. ● When SNMP Version is set to ALL or SNMPv1&v2c, you can set Read Community and Write Community. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 118 – A password must not be a string containing duplicate sections, such as 12a12a12a. – Weak passwords such as Password, Admin_1243, and Changeme_123 are not allowed. Set SHA Password and Confirm Password as planned. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 119: Optional) Setting Wifi Parameters
After the WiFi module of the USB port is connected to the USB port on the main control module of the unit, WIFI Settings can be set. Procedure Step 1 On the home screen, choose Settings > Comm Settings > WIFI Settings. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 120: Startup
● Starting a unit over the screen or NMS is valid only when the status of remote dry contacts or remote start/shutdown signal is started. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 121 The QR code shown in the preceding figure is used for scanning on the mobile app. ● If it is not the initial startup, tap Confirm to start the unit. Figure 5-12 Startup Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 122 Step 6 Tap Password on the screen of the unit and enter the generated startup password in the displayed dialog box. Step 7 After startup, the system automatically enters the wizard-based startup mode. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 123: Charging Refrigerant
NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual 5 Power-On and Commissioning 5.7 Charging Refrigerant 5.7.1 Refrigerant Charge Amount Requirements The NetCol8000-E220 has dual compressor systems. The following table uses one system as an example. Table 5-5 Refrigerant charge amount Model NetCol8000- NetCol8000-E220DM0BA...
Page 124 If not, put the cylinder upside down when charging refrigerant. These measures ensure that the refrigerant is charged in the liquid state. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 125: Optional) Charging The Remaining Refrigerant
Table 5-6 Proper discharge pressure ranges Outdoor Discharge Suction Pressure Suction Ambient Pressure Range Range Superheat Temperature Degree < 15°C 1.5–2.5 MPa 0.7–1.2 MPa 3–15°C 15–35°C 1.5–3.1 MPa Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 126: Wizard Startup
Step 1 On the home screen, choose Maint > Wizard Startup. Step 2 Read the precautions on the screen and confirm whether to access the wizard- based startup mode. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 127 – Tap Yes to start the system and commission components. – Tap No to exit the commissioning while keeping the system shut down. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 128: Optional) Powering Off The Unit
In shutdown mode, the Shutdown button is green (unavailable) and the Start button is gray (available). Procedure Step 1 Tap Shutdown on the home screen of the display module. A warning is displayed, indicating whether to shut down the unit. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 129: Checking After Commissioning
CAUTION If they are not closed, condensation, frost, and freezing may occur on the indoor circulation side of the unit. All maintenance doors are closed. □ Passed □ Failed Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 130: Webui
COM/FE port on the unit. On the main screen of the unit, choose Settings > Comm Settings > WAN IP Settings, and set the IP address, subnet mask, and gateway for the unit. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 131 Step 3 Log in to the WebUI of the unit. Enter https://IP address (such as https://192.168.0.10) in the address box of the browser, and then press Enter to enter the WebUI login page. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 132: Introduction To The Webui
Monitor the running information of the unit in real time, set running parameters, and control the running. For example, set the temperature and humidity of the unit, enable the T/H sensor, and set the fan control type. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 133 ● Query and export fault information. ● Manage users, such as adding, modifying, deleting, locking, and unlocking users. ● Import and export configuration files to configure the unit quickly. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 134: Routine Maintenance
It is recommended that the following maintenance items be performed once a year. – Check electrical cable connections. – Check whether the enclosure of the unit is damaged or corroded. If yes, clean the shell and take anti-corrosion measures. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 135: Routine Maintenance Overview
Do not use wet cloth to clean exposed copper bars or other conductive parts. ● Exercise caution during professional maintenance. For details, contact technical support. ● When replacing a component, do not lean the component against the cabinet. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 136: Monthly Maintenance
Take out the foreign matter if the fan is and exhaust fan run blocked. smoothly. Check that screws on the Tighten loose screws. indoor fan and exhaust fan are not loose or distorted. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 137 Check that heat dissipates when the oil heating belt is running. (To avoid burns, do not touch it with bare skins.) Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 138 If the results of three consecutive tests equipment room every do not meet the requirements, find out month. the cause in water supply and take corresponding measures to ensure normal operation of the spray system. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 139: Quarterly Maintenance
Replace the filter. damaged or distorted. NOTE It is recommended that the air filter be replaced every six months. The maintenance frequency can be increased based on the local air quality. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 140 Conde Clean up dirt in the You are advised to clean the dirt inside nsate drainpipe. the drainpipe using a brush every three drainpi months. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 141: Semi-Annual Maintenance
● Check that the ground bolts are free from rust and securely connected to ground electrodes. Electrical Check that the screws of Tighten screws. wiring electrical components are not loose. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 142 ● If the water pump shell leaks, tighten the shell. ● If the water pump shaft seal leaks, replace the water pump or the shaft seal. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 143 After the air is exhausted, close the exhaust plugs of the water pump. NOTE You are advised to replace the water pump after it has been running for 20,000 hours. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 144 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual 7 Routine Maintenance Figure 7-1 Drainage valves (1) Butterfly valve 1 (2) Butterfly valve 2 (3) Butterfly valve 3 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 145: Troubleshooting
A short circuit exists Check the power cable and voltage of the between the fan and motor. the ground. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 146 Check whether the resistance of the air different from the supply duct is too large. designed value. Vibration Imbalance Check whether the fan blades are damaged, polluted, or frozen. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 147 ● Replace the air filter. Electrical Control ● Perform routine check on all electrical components and safety devices. ● Periodically check valves that control the flow of media. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 148 The fan works The fan bearing is worn out. Repair or replace the bearing. abnormally. The fan blade is interfered Adjust the fan blade. with the shell. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 149 The compressor The refrigerant is insufficient. Charge more refrigerant. suction pressure The indoor temperature is set Modify the temperature is too low or too low. setting. liquid returns. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 150 When water flows out of the exhaust hole, reinstall and tighten the exhaust plug. NO TE If the fault persists, contact technical support. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 151: Alarm Reference
NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual 9 Alarm Reference Alarm Reference FusionCol & NetCol Smart Cooling Product Alarm Reference . For details, see the Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 152: Parts Replacement
Step 2 Turn off the active and standby power switches. Step 3 Open the maintenance door. Step 4 Remove the screws securing the air filter, and remove the air filter. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 153: Replacing A Fan
A fan needs to be replaced. The following describes how to replace an exhaust fan. ● A spare fan of the same model is available and functional. ● Tools: protective gloves, flat-head insulated torque screwdriver, diagonal pliers, cable tie Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 154 Step 4 Cut the cable tie that binds the cable connected to the faulty fan, and remove the fan terminal. Step 5 Remove screws from the fan support. Figure 10-2 Removing the screws from the fan support Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 155: Replacing A Differential Pressure Switch
A spare differential pressure switch of the same model is available and functional. ● Tool: Phillips insulated torque screwdriver Context The differential pressure switch needs to be maintained in the air return compartment. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 156 Remove the gland from the new differential pressure sensor, route the cable through the gland, and connect the cable to the differential pressure switch. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 157: Replacing A Compressor
● Do not tilt the compressor during replacement to prevent lubricant leakage. ● Install a new compressor immediately after you remove the rubber plugs of suction and discharge vents to prevent the moisture intake. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 158 NO TICE After removal, seal the suction vent immediately to keep the system clean and prevent moisture from entering the system. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 159 36 mm torque wrench to loosen the adjustable nut until the pipe is separated from the filter dryer. Immediately seal the pipe opening after removal to keep the system clean and prevent water from entering the system. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 160 Step 14 Close the maintenance door. Step 15 Power on the device. Step 16 Choose Maintenance > Performance Maintenance on the home screen and clear the total runtime of the compressor. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 161: Precharging Refrigerant
(such as air or additive) enters the smart cooling product system. The supplier is not liable for any risks and losses caused due to violation. 10.4.2.1 Refrigerant Charge Amount Requirements The NetCol8000-E220 has dual compressor systems. The following table uses one system as an example. Table 10-1 Refrigerant charge amount...
Page 162 Step 5 After vacuumizing is complete, close all valves of the pressure gauge and the vacuum pump without disconnecting the pump, and preserve the pressure for 10 minutes. Ensure that the pressure of the cooling system does not exceed 90 Pa (absolute pressure). Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 163: Precharging Refrigerant
Context CA UTION ● The NetCol8000-E220 has dual compressor systems. Charge refrigerant for the systems one by one or at the same time. The following figure uses one system as an example. ● When charging refrigerant, you are advised to use a safety valve to prevent refrigerant leakage during the removal of the rubber hose, which may cause frostbite.
Page 164 Step 5 The precharge amount must be less than or equal to the total charge amount. If the total refrigerant amount cannot be fully pre-charged, charge the remaining amount of refrigerant during power-on commissioning. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 165: Replacing A T/H Sensor
T/H sensor. Step 7 Power on the device. Step 8 Tap Start on the home screen. Ensure that the device is running normally without any alarms. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 166: Replacing A Drive
Step 4 Remove all cables from the drive and cut the cable ties using diagonal pliers. Step 5 Remove cables. Step 6 Remove the four screws on the drive using a Phillips insulated torque screwdriver, and pull out the drive. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 167: Replacing A Liquid Level Switch
A spare liquid level switch of the same model is available and functional. ● Tool: solid wrench Context The liquid level switch needs to be maintained from the outdoor air intake vent. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 168 Step 9 Power on the device. Step 10 Tap Start on the home screen. Ensure that the device is running normally without any alarms. Step 11 Close the No. 2 maintenance door. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 169: Replacing A Water Pump
Step 4 Remove the water pump. Remove the inlet and outlet pipes of the water pump. Remove the fastener from the water pump using a socket wrench, and pull out the spray pump. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 170: Replacing A Switch
A spare switch of the same model is available and functional. ● Tools: Phillips insulated torque screwdriver, flat-head insulated torque screwdriver Procedure Step 1 Open the door of the electric control box. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 171 Step 9 Close the door of the electric control box. Step 10 Tap Start on the home screen. Ensure that the unit is running normally without any alarms. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 172: Replacing A Contactor
Step 5 Install the new contactor. Clamp the clip at the lower side of the new contactor to the guide rail, push the contactor upwards, and press the contactor inwards. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 173: Replacing A Fuse
Step 8 Tap Start on the home screen. Ensure that the unit is running normally without any alarms. ----End 10.12 Replacing a Relay Prerequisites ● A relay needs to be replaced. ● A spare relay of the same model is available and functional. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 174 (3) Clip ring (4) Metal plate Step 7 Install a new coil or base. Step 8 Power on the device. Step 9 Close the door of the electric control box. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 175: Replacing An Spd
10.14 Replacing a Thermal Relay Prerequisites ● A thermal relay needs to be replaced. ● A spare thermal relay of the same model is available and functional. ● Tool: Phillips insulated torque screwdriver Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 176 Step 7 Close the door of the electric control box. Step 8 Tap Start on the home screen. Ensure that the unit is running normally without any alarms. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 178 ● If ON/OFF via NMS is disabled on the LCD of the unit, the unit cannot be started or shut down over the NetEco. Figure 11-1 Start/Shutdown over the LCD Figure 11-2 Start/Shutdown over the NetEco WebUI Figure 11-3 Start/Shutdown over the hardware port Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 179: Operations With A Usb Flash Drive
USB flash drive is successfully identified. Step 3 Select an operation in USB Operations and perform the operation as prompted. Figure 11-5 USB Operations Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 180: How Do I Export Data
2, import the configuration file to unit 2. Procedure Step 1 On the home screen of unit 1, choose Maintenance > USB Operations > Export Config. The Select Path screen is displayed. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 181 Step 7 Choose Confirm and tap Next. Step 8 After the import is complete, tap Finish. NO TE If the file fails to be imported, a failure message will be displayed. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 182: How Do I Import A Certificate And Key
Rectify the fault according to the message and import files again. Step 8 On the home screen, choose Maintenance > USB Operations > Remove USB to remove the USB flash drive in safe mode. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 183: Display Module Screen Operations
On the T/H Curve screen, the temperature and humidity curves show the recent temperature and humidify changes. You can choose to display the curves in recent one hour, one day, seven days, or 30 days. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 184: How Do I View Logs
Step 1 Choose Maintenance > Logs on the home screen. ----End 11.3.4 How Do I View Component Status? Context You can view the component status on the display module in the following two ways: Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 185: How Do I View System Parameters
● When the cold and hot aisles of T/H boards are disabled, the information about the corresponding cold and hot aisles is not displayed on the T/H Board under About > Version Info or T/H Board under About > E-label. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 186: How Do I View The Service Information
After a buzzer is muted, it does not buzz when a new alarm is generated. Procedure Step 1 Tap the icon on the status bar and tap Off. The icon changes to ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 187: How Do I Handle Alarms
----End Follow-up Procedure To query historical alarms, choose Common Function > Historical Alarms on the home screen or choose Alarms > Historical Alarms on the home screen. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 188: How Do I Clear Component Runtime
11.3.13 How Do I Change the Password? Prerequisites ● If you need to change a password, log in as user admin or operator. ● You can only modify the password of the current user. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 189: How Do I Set The Balance Of Water And Electricity Consumption
Step 1 On the home screen, choose Settings > System Settings > System Control and set Balance of water and electricity consumption based on the actual situation. Figure 11-17 Setting parameters Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 190: How Do I Set Alarm Parameters
● If you need to change alarm settings, log in as user Admin. NO TICE Be careful when configuring alarm parameters. Only professional maintenance personnel can change alarm settings. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 191: How Do I Commission A Component
● The following describes how to commission an indoor fan. Procedure Step 1 On the home screen, choose Maint > Diagnostic Mode > Enter to enter the diagnostic mode. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 192: How Do I Query The Setting Of A Parameter Before Change
-> is the setting after change. NO TE The log query screen displays logs of LCD user operations, including user login and setting change records. Figure 11-20 Log query 11.4 WebUI Operations Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 193: How Do I Manage Webui Users
Choose the admin user and click Modify. Reset the login password on the displayed page and click Confirm. Figure 11-21 Changing the login password Enter Login user password and click Submit. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 194 – Retrieve the password if you forgot it. On the login page, click Forgot password, enter related information to obtain a verification code, and reset the login password. – A verification code is used for login. Enter Login user password and click Submit. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 195: How Do I Install A Network Security Certificate
Step 1 Log in to the WebUI of the unit as an administrator. Step 2 Choose Home > Active Alarm to view the active alarms of the unit. Click Details in the Alarm Description area to view alarm details of devices. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 196: How Do I Export Or Import A Configuration File
If Encryption Password for Export is selected, the exported data package will be encrypted, and you need to enter the encryption password to decompress the data package. To ensure data security, you are advised to select Encryption Password for Export. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 197: How Do I Change An Ip Address
Step 3 Choose Maintenance > Version Information and view the version information, software version, and BSP version. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 198: A Base Drawing
NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual A Base Drawing Base Drawing Figure A-1 Base drawing Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 199: B Physical Ports
NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual B Physical Ports Physical Ports Figure B-1 Physical ports Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 200: C Cleaning The Unit
Clear dust, rain marks, or stains on the exterior using a long-handled soft brush dipped with alkaline or neutral detergent. Wash the exterior with clean water. NO TE It is recommended that you clean the device once every quarter. ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 201: D Repainting The Unit
NO TE Check the paint damage on the unit and prepare appropriate tools and materials. The number of materials depends on site requirements. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 202 Logo and pattern Seek help from the headquarters for a detailed painting damage solution. Frontline personnel can turn to local advertisement coating suppliers. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 203 Step 2 Dip a piece of cotton cloth into anhydrous alcohol and wipe the polished or damaged area to remove the dirt and dust. Then wipe off the alcohol with a clean and dry cotton cloth. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 204 Figure D-3 Painting zinc-rich primer Step 4 Apply two layers of paint on the damaged topcoat based on the damage degree of the paint using a spray bottle, brush, or painting gun. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 206 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual D Repainting the Unit Figure D-6 Repainting using a painting gun ----End Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 207: E Maximum Water Consumption
Table E-1 Maximum water consumption City Maximum Water Consumption Per Equipment (L/h) Beijing Harbin Changchun Shijiazhuang Xining Urumqi 1180 Lanzhou Xi'an Zhengzhou Jinan Nanjing Shanghai Chengdu Guiyang Kunming Guangzhou Nanchang Nanjing Nanning Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 208 ● Water consumed by upstream water processing equipment has been considered when the maximum water consumption is determined. ● The preceding table is for reference only. You need to check the local weather parameters when designing specific solution. Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 209: F Cooling Component Layout
(11) Liquid pipe temperature (12) Filter dryer sensor (13) Electronic expansion valve (14) Low-pressure needle valve (15) Indoor fan (16) Gas-liquid separator (17) Low pressure sensor (18) Suction temperature sensor Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 210: G Acronyms And Abbreviations
G Acronyms and Abbreviations Acronyms and Abbreviations controller area network fast Ethernet negative temperature coefficient power supply unit positive temperature coefficient power usage effectiveness RCCB residual current circuit breaker Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 211 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual G Acronyms and Abbreviations thin film transistor Universal Serial Bus Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 212: H Electric Diagrams
NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Electric Diagrams Figure H-1 Electric diagram 1 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 213 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-2 Electric diagram 2 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 214 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-3 Electric diagram 3 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 215 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-4 Electric Diagram 4 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 216 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-5 Electric diagram 5 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 217 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-6 Electric diagram 6 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 218 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-7 Electric diagram 7 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 219 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-8 Electric diagram 8 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 220 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-9 Electric diagram 9 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 221 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-10 Electric diagram 10 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 222 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-11 Electric diagram 11 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 223 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-12 Electric diagram 12 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 224 NetCol8000-E220 Modular Indirect Evaporative Cooling System User Manual H Electric Diagrams Figure H-13 Electric diagram 13 Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.

Huawei NetCol8000-E220 User Manual

About this Document

1 Safety Information

2 Product Description

3 Product Specifications

4 Installation Guide

5 Power-On and Commissioning

6 Webui

7 Routine Maintenance

8 Troubleshooting

9 Alarm Reference

10 Parts Replacement

11 Faq

A Base Drawing

B Physical Ports

C Cleaning the Unit

D Repainting the Unit

E Maximum Water Consumption

F Cooling Component Layout

G Acronyms and Abbreviations

H Electric Diagrams

Quick Links

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Summary of Contents for Huawei NetCol8000-E220

Table of Contents