Page 1 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual Issue Date 2022-12-15 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
The symbols that may be found in this document are defined as follows. Symbol Description Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 4 (Only for a Downflow Unit). Updated 6.2 Alarm Reference. 2021-12-30 Added 3.6.7 (Optional) Installing a Motorized Damper (Only for a Downflow Unit). Updated 6.4.6 Replacing a Wet Film Humidifier. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 5 Description. Updated 3.6.4 (Optional) Installing Teamwork and Monitoring Communications Cables. Updated FAQ. 2020-08-30 Updated the description about installing caps and downflow fans. 2020-03-03 This is the first official release. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 6: Table Of Contents
3.2.2.1 Water Inlet Pipe of the Wet Film Humidifier....................... 45 3.2.2.2 Drainpipe................................... 46 3.2.2.3 Chilled Water Inlet and Outlet Pipes........................46 3.2.2.4 Pipe Support..................................47 3.2.2.5 Cables....................................47 3.3 Unpacking and Acceptance............................... 49 3.4 Installing Components................................ 50 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 7 3.6.11 (Optional) Installing a Cap (Applicable to Upflow Units)................91 3.7 Installation Verification...............................94 4 Power-On Commissioning....................97 4.1 Power-On Preparations............................... 97 4.2 Power-On....................................98 4.3 Home Screen..................................104 4.4 Menu Function Description............................. 106 4.5 Setting Parameters................................106 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 8 6.4.6.1 Replacing a Wet Film Humidifier (for an Upflow Model)................161 6.4.6.2 Replacing a Wet Film Humidifier (for a Downflow Model)................. 162 6.4.7 Replacing a Built-in Water Valve Actuator......................164 6.4.8 Replacing a PSU................................167 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 9 7.5.7 How Do I View Version Information?........................192 A Glycol Adding Requirements....................193 B Physical Ports........................194 B.1 NetCol8000-C070U................................194 B.2 NetCol8000-C130U................................195 B.3 NetCol8000-C190U................................196 B.4 NetCol8000-C070D................................197 B.5 NetCol8000-C130D................................198 B.6 NetCol8000-C190D................................199 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd. viii...
Page 10 C Base Drawings........................200 C.1 NetCol8000-C070U................................200 C.2 NetCol8000-C130U................................201 C.3 NetCol8000-C190U................................202 C.4 NetCol8000-C070D................................203 C.5 NetCol8000-C130D................................204 C.6 NetCol8000-C190D................................205 D Electrical Diagrams......................206 E Acronyms and Abbreviations....................210 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 11: 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 12: 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 13 – Trained personnel: personnel who are trained in technology and safety, have required experience, are aware of possible hazards on themselves in Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 14: 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 15 Installation personnel mark tightened bolts in blue. Quality inspection personnel confirm that the bolts are tightened and then mark them in red. (The marks should cross the edges of the bolts.) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 16 If high touch current may occur on the equipment, ground the protective ground terminal on the equipment enclosure before connecting the power supply; otherwise, electric shock as a result of touch current may occur. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 17 (LSI) circuits. ● When touching the equipment and handling boards, modules with exposed circuit boards, or application-specific integrated circuits (ASICs), observe ESD Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 18: Environmental Requirements
Do not place the equipment near heat sources or fire sources, such as smoke, candles, heaters, or other heating devices. Overheat may damage the equipment or cause a fire. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 19 Before opening doors during the installation, operation, and maintenance of the equipment, clean up any water, ice, snow, or other foreign objects on the top of the equipment to prevent foreign objects from falling into the equipment. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 20: Mechanical Safety
Before installing equipment in a cabinet, ensure that the cabinet is securely fastened with a balanced center of gravity. Otherwise, tipping or falling cabinets may cause bodily injury and equipment damage. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 21 ● Move or lift the equipment by holding its handles or lower edges. Do not hold the handles of modules that are installed in the equipment. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 22 Set a restricted area and prominent signs for working at heights to warn away irrelevant personnel. ● Set guard rails and warning signs at the edges and openings of the area involving working at heights to prevent falls. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 23 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 24 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 26: Cooling System Safety
This also promotes resource sustainability. To recycle an old device, use a recycling collection system or contact the supplier. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 27: Product Description
● NetCol8000-C190D4FE0 ● NetCol8000-C190U40DC ● NetCol8000-C190U4FEC Figure 2-1 NetCol8000 model number Meaning Description Data center smart NetCol: data center smart cooling cooling product Model series 8000: in-room smart cooling Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 28: Technical Specifications
Air filter level Dimensions (H x W x 2000 x 900 x 1000 2000 x 1800 x 2000 x 2700 x D, mm) (single-door) 1000 (double- 1000 (triple- door) door) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 29 1: Test conditions: inlet/outlet water temperature: 7°C/12°C; return air dry/wet bulb temperature: 24°C/17°C; static pressure: 0 Pa Environmental Specifications Table 2-3 Environmental specifications Item NetCol8000-C070 NetCol8000-C130 NetCol8000- C190 Operating 4–45°C temperature Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 30: Components
Temperature 1°C adjustment precision Humidity 20%–80% RH adjustment range Humidity 5% RH adjustment precision Figure 2-2 Cooling capacity derating coefficient curve in proportion to the altitude 2.3 Components Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 31: Appearance
User Manual 2 Product Description 2.3.1 Appearance Appearance The NetCol8000-C has three models: single-door, dual-door, and three-door. The following figures show the appearance of the NetCol8000-C. Figure 2-3 NetCol8000-C (upflow) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 32 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual 2 Product Description Figure 2-4 NetCol8000-C (downflow) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 33: Interior
(15) Fan NO TE The figure uses the NetCol8000-C070U as an example. The preceding figure can be used as a reference for the component structure of the NetCol8000-C130U and NetCol8000-C190U. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 34 (7) Wet film humidifier (8) Humidifier solenoid valve (9) Water inlet/outlet pipe (10) Water valve actuator (11) Drainpipe (12) Fan (13) Electric heater (14) Heat exchanger (15) Air filter Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 35 (7) Connection box (8) Humidifier solenoid valve (9) Water inlet/outlet pipe (10) Water valve actuator (11) Drainpipe (12) Fan (13) Electric heater (14) Wet film humidifier (15) Air filter Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 36 (1) Differential pressure switch (2) T/H sensor (3) User wiring terminal (4) Heat exchanger (5) Main control module (6) PSU (7) Connection box (8) Water inlet/outlet pipe (9) Drainpipe (10) Fan (11) Air filter Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 37 The A-type or V-type finned-tube exchanger with a high cooling efficiency adopts the synergy field principle and computational fluid dynamics (CFD) to optimize the flow path design, which greatly improves the heat exchange efficiency. ● Chilled water valve Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 38 In most cases, household water can be used without being processed specially. – It has a simple structure and is easy to remove, clean, and maintain. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 39: Display Module
No buzzing The unit is operating properly, or there is a warning. Yellow Intermittent There is an unacknowledged major alarm. buzzing Constant There is an unacknowledged critical alarm. buzzing Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 41 The device supports communications protocols such as Modbus RTU, Modbus TCP, and SNMP, facilitating connection to the network management system. ● The display panel intelligently identifies abnormal parameter settings (incorrect commands) and rejects them automatically. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 42: Main Control Module
CAN_IN and CAN_OUT ports: connect CAN teamwork and RS485 monitoring cascading communications cables. ● RS485/12V port: connects a temperature and humidity (T/H) sensor. ● COM/FE port: connects a monitoring communications cable. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 43 ● DP port: connects to the display module. Appearance DP Port Connects to the display module for communication and power supply. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 44: Monitoring System
RS485 ports and FE ports to support Modbus-RTU, Modbus-TCP and SNMP for real-time data collection and alarm reporting. Smart cooling products can be networked over the CAN bus to realize teamwork control, energy conservation, and service life extension. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 45: Installation
(B) Chilled water outlet (1) Balance valve or isolation valve (2) Water strainer (3) Isolation valve (4) Flexible connection (5) Chilled water valve (6) Heat exchanger (7) External components Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 46: Layout Requirements (Downflow)
Pressure resistance of the water filter is determined by site requirements. Install the water filter on the external water inlet pipe near the smart cooling product. 3.1.3 Layout Principles Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 47 ● Install the equipment in a spacious place. ● The equipment should be placed as far away from offices as possible, and noise control measures should be taken. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 49: System Requirements
If the water inlet temperature exceeds 10°C or the total load is less than 30% of the cooling capacity of a single smart cooling product, the humidity may be high. The customer is advised to add a dehumidifier (engineering procurement). Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 50: Installation Preparations
(RCCB) that is not sensitive to the single-phase DC pulses and transient current pulses. 3.2 Installation Preparations 3.2.1 Tools The onsite technical personnel can select tools based on the site requirements. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 51 Insulated gloves Protective gloves Safety harness Safety belt Hoisting and transport tools Crane Steel hoisting Lifting sling and Jack rope and lifting lifting eye Electric forklift Manual pallet Lever truck Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 52 Hammer drill bit (10"/15") 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 fountain Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 53 ● 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 54 Power cable pliers crimping tool RJ45 crimping Insulation tape Heat shrink Heat gun tool tubing Cable tie Commissioning Tools Multimeter Clamp meter Thermocouple Nitrogen temperature sensor c: dry nitrogen Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 55: Materials
(3) Pipe: used with the adapter NO TE (1) in the dotted box is a reserved port. Other items need to be purchased. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 56: Drainpipe
3.2.2.3 Chilled Water Inlet and Outlet Pipes Figure 3-8 Connecting a water inlet or outlet pipe (1) G 2 inch thread connector (2) DN50 seamless steel pipe with an external threaded connector Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 57: Pipe Support
● The onsite grounding resistance must comply with related standards. ● Select power cables with appropriate diameters based on the maximum working currents. When connecting cables, fit them with protective hoses. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 58 Teamwo Standard Signal cable, shielded The length is rk and network cable straight-through cable, 10 m, determined based monitori MP8-II, CC4P0.5GY(S), MP8- on engineering II, FTP survey. network cables Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 59: Unpacking And Acceptance
Step 2 Remove the packing materials. Check whether the cabinet exterior is in good condition and free of collision marks or scratches. If any damage is found, notify the carrier immediately. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 60: Installing Components
– You can open or close the exhaust valve using a flat-head screwdriver. ● If no, rotate the exhaust valve counterclockwise. If gas flows out, the system is normal. If no gas flows out, contact technical support. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 61 Remove the desiccant bag under the heat exchanger of the upflow unit. ● Remove the fan maintenance baffle plate of the downflow unit, and take out the desiccant bag inside the cabinet. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 62: Exhausting Nitrogen
● Open the exhaust valve of each heat exchanger to exhaust nitrogen onsite. Context D ANGER Before connecting chilled water pipes, exhaust nitrogen used for avoiding injury. Figure 3-12 Upflow exhaust valve (1) Exhaust valve Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 63: Removing The Pallet
Step 2 Remove the bolts that secure the cabinet and the pallet using a 19# socket wrench. NO TE For a single-door and double-door cabinet, remove the four bolts from both sides. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 64: Securing Equipment
● For a triple-door unit, six screws need to be tightened. Tighten the four screws at both ends of the unit and the screws (diagonal) in the middle. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 65: Lowering A Fan (Applicable To Downflow Units)
Procedure Step 1 Open the front door. Step 2 Remove the screws of the fan maintenance baffle plate using a Phillips screwdriver, and remove the fan maintenance baffle plate. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 67: Connecting Pipelines
Connect the fan signal cable and power cable to the interconnection port reserved on the fan panel, and bind the cables. Figure 3-19 Securing the fan ----End 3.5 Connecting Pipelines Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 68: Cabinet Hole Positions
(3) Chilled water inlet (4) Humidifier pipe hole water inlet pipe hole (5) Chilled water (6) Active power outlet pipe hole cable hole (7) Standby power cable hole Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 69: Installing The Chilled Water Pipes
(7) Standby power cable hole (8) Active power cable hole 3.5.2 Installing the Chilled Water Pipes Context CA UTION Before installing the pipes, release all nitrogen from the pipes to avoid personal injury. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 70: Upflow
(the 75# open-end wrench is used to secure the pipe nut and the 36# open-end wrench is used to secure the plug to prevent the pipes from being distorted), as shown by (1) in Figure 3-23. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 71: Downflow
Step 1 Remove the baffle plate at the bottom of the cabinet, and knock off the U-shaped hole in the baffle plate, as shown by (1) in Figure 3-24. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 72: Optional) Installing Pipes For The External Water Valve Actuator
3.5.3 (Optional) Installing Pipes for the External Water Valve Actuator CA UTION Ensure that the arrow direction on the water valve actuator is consistent with the water flow direction. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 73: Installing The Drainpipe
3.5.4 Installing the Drainpipe NO TICE ● The drainpipe must have gradients (1:100 is recommended), but no trap is allowed. ● The entire drainpipe should be closely wrapped with thermal insulation foam. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 74: Optional) Installing The Water Inlet Pipe For The Wet Film Humidifier
NO TICE Install a water filtering device at the port of the water inlet pipe for the wet film humidifier. The following figure uses a rigid pipe as an example. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 75: Optional) Leakage Test With Nitrogen
Step 3 Connect the reducing valve and nitrogen cylinder to the following needle valve, inject 0.8 MPa (when the pressure is stable) nitrogen, and leave them for 24 hours. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 76: Leakage Test With Water
Context ● To avoid blockage of the heat exchanger in the smart cooling product due to foreign matter from the main pipe during the construction, you are advised to Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 77 If you open the chilled water valve quickly, water may spill out of the water pan due to high pressure. Step 4 Adjust the air exhausting speed until no air flows out of the valve. Then close the exhaust valve. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 78: Installing Cables
● Cable colors in this document are for reference only. 3.6.1 Positions of Electric Ports After opening the front door, you can see the electric ports, as shown in the following figure. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 79 (2) Standby power switch QF2 (3) Ground screw (4) Fan switch QF4 (5) Cable clamp (6) Fuses 1–4 (7) Dual power supply switch (8) Intermediate relay KM3 (9) Electric heater switch QF3 over contactor KM1/KM2 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 80: Installing Power Cables
Step 1 A ground cable must be routed from the equipotential bonding point of the cabinet to the ground. The following figure shows the equipotential bonding point of the cabinet. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 82: Installing Signal Cables
● Downflow Figure 3-39 Cabling for downflow units with dual power supplies ----End 3.6.3 Installing Signal Cables Prerequisites CA UTION Before connecting signal cables, take effective ESD protection measures. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 83 GND of the Motorized air damper fresh air filter (GND) Common alarm Differential pressure Return air damper/ switch NTC2Z+ of the Motorized air damper (24 fresh air filter V DC) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 84: Optional) Installing Teamwork And Monitoring Communications Cables
ELV cable tray, to reduce the impact of electromagnetic interference on teamwork communication. 3.6.4.1 Preparing a Network Cable Step 1 Crimp a network cable. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 85: Independent Networking
3.6.4.2.1 FE Teamwork + FE Monitoring Step 1 Connect teamwork and monitoring communications cables. Networking FE Teamwork FE Monitoring Protocol MAC_CAN Modbus-TCP/SNMP Description A teamwork network supports a maximum of 16 units. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 86: Fe Teamwork + Rs485 Monitoring
Figure 3-44 FE teamwork group-based ring networking (using 13 units as an example) ----End 3.6.4.2.2 FE Teamwork + RS485 Monitoring Step 1 Connect teamwork and monitoring communications cables. Networking FE Teamwork RS485 Monitoring Protocol MAC_CAN Modbus-RTU Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 87 For example, if the number of units under teamwork is 18, they can be divided into two groups, for example, 9+9, 16+2, or 10+8. Figure 3-45 Connecting communications cables Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 88: Can Teamwork + Fe Monitoring
CAN resistor to Yes. NO TE If the Modbus-TCP/SNMP protocol is used, customers can purchase the NetEco (a LAN switch is required) or a third-party NMS as the monitoring system. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 89: Can Teamwork + Rs485 Monitoring
● 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 90: Optional) Installing Cables For The External Water Valve Actuator
Step 2 Connect the cables of the water valve actuator to the specified ports of the unit based on the mapping. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 91 Y1: water valve actuator L24: 24 V AC/V DC power M: neutral wire and signal of supply 24 V AC/V DC power supply Yv: input signal for Xv: output signal proportional control Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 92: Optional) Installing A Gravity Damper (Only For An Upflow Unit)
Independent installation (applicable to the NetCol8000-C070D/NetCol8000- C130D): The air damper actuator is located on the left side. Figure 3-51 Installing an air damper (NetCol8000-C070D) (1) Air damper (2) Air damper actuator Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 93 (2) Air damper actuator Figure 3-53 Motorized damper wiring ● Combined installation (applicable to NetCol8000-C190D): Two air dampers are installed side by side, and the actuator is located leftward. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 94 (3) Air damper actuator Figure 3-55 Motorized damper wiring X504 Signal Cable Terminal Air Damper Actuator Cable Color X504-5 (AI) Orange X504-6 (AO) White X504-7 (GND) Black X504-8 (24 V DC power) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 95: Optional) Installing T/H Sensors Outside A Cabinet And Cables
Step 1 Connect the T/H sensors outside the cabinet and the T/H sensors at the air return side in series. Figure 3-56 Connecting T/H sensors (upflow model) (1) T/H sensor outside the cabinet Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 96 (1) Return air T/H sensor (2) T/H sensor outside a (3) 568B standard network cabinet cable Step 2 Set the DIP switches on the T/H sensors. For details, see the following table. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 97 1 Cold aisle sensor 2 Cold aisle sensor 3 aisle aisle sensor 1 aisle sensor 2 aisle sensor 3 Direct Fresh ventila air T/H tion sensor Return damper sensor Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 98: Optional) Installing The Direct Free-Cooling Plenum
3 Installation NO TICE ● The default addresses of T/H sensors purchased from Huawei are 1. ● After the addresses are set, power on the device, choose Settings > System Settings > T/H sensor on the home screen of the display module, and set the sensors in the aisles corresponding to the addresses to Enable.
Page 99 ● The pressure tube of the differential pressure sensor passes through the middle of the thermal insulation foam close to the inner side of the cabinet. Figure 3-60 Connecting the pressure tubes Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 100: Optional) Installing A Downflow Differential Pressure Sensor
There should be two binding points near the pressure inlet. The distance between the two binding points should be 20 mm Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 101: Optional) Installing A Cap (Applicable To Upflow Units)
● Before installing the cap, reserve space on the top of the upflow unit. The height of the reserved space must be greater than that of the cap. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 102 Step 1 Remove the cap front panel using a Phillips screwdriver. Place the cap on the top of the cabinet. NO TICE It takes two persons to install the cap using a 2 m step ladder. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 103 ● During the installation, grasp the panel frame instead of the blade to move the panel to avoid blade deformation. ● The cap should be well sealed to the smart cooling product to ensure good sealing performance in-between. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 104: Installation Verification
The water inlet solenoid valve is secured. □Passed □Failed Wet film The wet film humidifier is secured reliably □Passed □Failed humidifier and steadily. Pipes are connected securely without □Passed □Failed leakage. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 105 The drainpipe has a gradient (1:50 is □Passed □Failed recommended). Cable The power voltage is the same as the □Passed □Failed connections rated voltage on the nameplate of the unit. Cables are intact. □Passed □Failed Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 106 The actuator is reliably and securely □Passed □Failed connected. The T/H sensor is secured reliably and □Passed □Failed steadily as required. The differential pressure tube is reliably □Passed □Failed secured without blockage or bend. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 107: Power-On Commissioning
Step 9 Turn on the general switch. For a device that has two power inputs, turn on the active power switch QF1 and standby power switch QF2. ----End Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 108: Power-On
Table 4-1 Preset passwords User Preset Password Permission Description admin 000001 People can operate all menus. (administrator user) operator (common 000001 Can only view parameters and set user) some parameters. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 109 Specifies whether to enable the teamwork function function. Set this parameter based on onsite heat load distribution. ● Disable: A unit operates independently. ● Enable: A unit operates in team with other units. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 110 Motorized ● Disable: The air damper function of the damper unit is disabled. ● AO Ctrl: Select AO Ctrl for AO-type air dampers. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 111 ● If this parameter is set to Startup status, DO_1 acts according to DO_1 action when the unit is started. ● If this parameter is set to No, no alarm is generated when DO_1 is disconnected. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 112 ● Only indoor fan running: Only the indoor fan runs when a floor water overflow alarm is generated. ● Humidifier stopped: Only the humidifier is stopped when a floor water overflow alarm is generated. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 113 The communication addresses of the two smart cooling products connected to the same management system must be different. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 114: Home Screen
USB connection status in the status bar indicates that the USB flash drive is successfully connected to the display panel. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 116: Menu Function Description
● About Checks the model, manufacturer, monitoring version, detail version information, and electronic label of the display module. 4.5 Setting Parameters Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 117: Setting T/H Sensor Parameters
The temperature inside the equipment room or aisle is mode controlled based on the average value, maximum value, or minimum value collected by multiple sensors. Humidity alarm mode Set this parameter as required. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 118 Table 4-5 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 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 119: Optional) Setting The Pressure Difference Control
4.5.2 (Optional) Setting the Pressure Difference Control Prerequisites If the differential pressure sensors are installed, perform the following operations accordingly. If the differential pressure sensors are not installed, skip this part. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 121 CAN networking will fail. Yes: The teamwork control CAN resistor is enabled for the unit. No: The teamwork control CAN resistor is disabled for the unit. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 122 The value is an integer ranging from 1 to the value of Number of systems in this group. NOTE This parameter is displayed after Teamwork function is set to Enable. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 123 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 125 Frame: green/non- ● A green frame indicates the current unit, as green shown in ● Devices without a green frame indicate other devices in the teamwork group. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 126: Setting Communications Parameters
If no, check the cable connection and the settings of teamwork control parameters. 4.5.4 Setting Communications Parameters 4.5.4.1 Setting Access Control Parameters Path: Settings > Comm Settings > Access Control Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 127: Setting Communications Parameters (Rtu Protocol)
Step 1 On the home screen, choose Settings > Comm Settings > Modbus Settings. Figure 4-7 Modbus Settings Step 2 Set the baud rate, communication address, and RS485 monitoring group. For details, see Table 4-8. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 128: Setting Communications Parameters (Modbus Tcp Protocol)
Step 2 On the home screen, choose Settings > Comm Settings > Modbus Settings and set Link mode to Server and client or Client. Set Client encryption to Enable. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 129 It is recommended that you retain the default number value. If you need to change the value, enter a value as required. This parameter is configurable when Link mode is set to Client. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 130: Setting Communications Parameters (Snmp Protocol)
Step 3 Set Read Community and Write Community. Tap the text box next to Read Community, set the read community parameter based on the actual plan, tap , and tap Submit. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 131 Tap Submit. Step 5 Tap the text box after SNMP Port, as shown in Figure 4-12. Set SNMP Port to the actual port number, tap , and then tap Submit. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 132: Optional) Setting Wifi Parameters
Prerequisites After connecting the WIFI module of the USB interface to the USB port of the smart cooling product main control module, WIFI Settings is enabled to be set. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 133: Correlation Relationship Of Parameters
Supply air high temperature alarm threshold + 5°C ≤ Return air high temperature alarm threshold ● Supply air high temperature alarm threshold + 5°C ≤ Hot aisle high temperature alarm threshold Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 134 No or 0~50Pa. ● When Indoor fan control type is not set to Pressure diff ctrl, Air-side difference pressure sensor type cannot be set to 0~50Pa. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 135: Startup
After factory settings are restored, startup verification is required. Step 1 Tap Start on the home screen to enter the initial startup screen. Tap OK to enter the startup authorization screen. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 136 Figure 4-15 Requiring a startup password ● If the Password required for start or shutdown onsite function is not enabled, tap OK to start the unit. ----End Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 137: Wizard Startup
● For a non-initial wizard-based startup, you can choose Last Record to view the last wizard startup report. Step 2 Tap Yes. The screen for checking before startup is displayed, as shown in Figure 4-17. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 138 You can deselect any commissioning items except "Indoor fan commissioning." Step 5 Tap Yes. The screen for component commissioning is displayed, as shown in Figure 4-19. Figure 4-19 Fan commissioning Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 139 Figure 4-21 Commissioning failed NO TE If commissioning fails, tap Commissioning failed. in Figure 4-21 to view the details, as shown in Figure 4-22. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 140: Power-Off
Step 4 (Optional) If the power supply needs to be disconnected for maintenance or for a long period, turn off the smart cooling product switch in the PDF. ----End Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 141: Optional) Antifreezing
(For the downflow units) Remove the plugs from the drainage needle valves 1, 2, 3, and 4 of the heat exchanger, to drain water naturally until no water flows out. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 142: Checking After Commissioning
● When using high-pressure nitrogen to drain water, prevent the remaining water in the water pan from splashing. ----End 4.10 Checking After Commissioning Table 4-10 lists the commissioning checklist. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 143 The air filter is correctly installed according to the air flow □ Passed □ Failed direction on the frame. Check that the chilled water valve is closed. □ Passed □ Failed Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 144: 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 145 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 146: Webui Description
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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 147 ● 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 148: Maintenance
Disconnect the power supply when you finish maintenance. ● Protective measures, such as wearing insulation gloves or shoes, must be taken during electrical maintenance. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 149: Monthly Maintenance
Chilled Check that the chilled water Secure the chilled water valve and water valve valve is secure and that the the actuator cable. actuator cable is connected securely. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 150: Semi-Annual Maintenance
Check that cables to the Reconnect the cables. differential pressure switch are securely connected. Water Check that the water Retighten the cables. leakage leakage sensor is securely sensor installed. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 151 Check that cables to the Reconnect the cables. differential pressure switch are securely connected. Check that the cap is Tighten the cap again. reliably secured. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 152: Annual Maintenance
NO TICE If jumpers are used for troubleshooting, remove them after troubleshooting. Connected jumpers may affect control functions and damage equipment. Table 6-4 describes how to troubleshoot the NetCol8000-C. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 153 Check that the chilled water control of a chilled water valve is valve plug is correctly installed. NetCol8000-C is reversely installed. abnormal. The chilled water valve Replace the chilled water valve. is stuck. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 155: Parts Replacement
Clean or replace the air filter. the fresh air unit used for too long and is blocked. become dusty. The differential pressure Replace the differential pressure switch is faulty. switch. 6.4 Parts Replacement Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 156: Replacing A Fan
Step 2 Open the front door and turn off the general switch. For a device that has two power inputs, turn off the active power switch QF1 and standby power switch QF2. Then, remove the fan maintenance cover using a Phillips screwdriver. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 157 Figure 6-2 Removing the screws that secure the fan Step 4 After pulling out the fan halfway, press the buckle on the left under the fan, and pull out the fan completely. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 158 Move the fan and fan frame to the side, and then remove the eight screws that secure the top of the fan frame to the fan. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 160 Step 12 Install the fan maintenance baffle and close the front door. Step 13 On the home screen, choose Maintenance > Performance Maintenance to enter the Performance Maintenance screen and clear the runtime of the indoor fan. ----End Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 161: Replacing A Fan (Downflow)
Step 4 Remove the screws on the beams above the fan by using a 13# socket wrench, and remove the two screws on the connecting piece between the fan and the bottom of the cabinet. Remove the beams and connecting piece. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 163 Step 11 Tap Repair in the lower left corner. The Connect the cable to the communications port on the fan to be repaired and disconnect the cables Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 164: Replacing An Air Filter
Step 2 Remove the sheet metal fastener from the air filter using a Phillips screwdriver, hold the handle and pull out the air filter. Figure 6-13 Removing an upflow air filter Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 165: Replacing An Air Filter (Downflow)
----End 6.4.3 Replacing an Electric Heater Context Recommended tools and materials: protective gloves, a Phillips screwdriver, water- proof glue, diagonal pliers, cable ties, and a new electric heater. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 166: Replacing An Electric Heater (Upflow)
Step 3 Remove the fan maintenance baffle plate. After the electric heater cools to the room temperature, cut off the cable tie on the electric heater cable and disconnect the interconnection terminal. Figure 6-15 Removing the fan maintenance baffle plate Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 167: Replacing An Electric Heater (For A Downflow Model)
----End 6.4.3.2 Replacing an Electric Heater (for a Downflow Model) Step 1 Tap Shutdown on the home screen of the display module. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 168 Step 5 Remove the four bolts from both ends of the electric heater and take out the electric heater. Figure 6-19 Removing an electric heater Step 6 Install a new electric heater. Step 7 Install the fan maintenance baffle plate and close the front door. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 169: Replacing A Display Module
Step 1 Tap Shutdown on the home screen of the display module. NO TICE Exercise caution because the device is still energized after it is shut down on the screen of the display module. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 170 Step 6 Set the new differential pressure switch to 500 Pa for an upflow model, or set the new differential pressure switch to 300 Pa for a downflow model, install a new differential pressure switch by performing Step 5–Step 3, and then close the front door. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 171: Replacing A Wet Film Humidifier
Pull out the wet film humidifier for about 80 mm and ensure that the hose clamp is located outside the cabinet. Remove the hose clamp and take off the water inlet pipe of the wet film humidifier. Pull out the wet film humidifier. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 172: Replacing A Wet Film Humidifier (For A Downflow Model)
Step 2 Open the cabinet front door. Step 3 Remove the wet film humidifier. Cut off the binding strap on the humidifier water inlet pipe and rotate the sheet metal positioning kit. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 173 Remove the hose clamp and take off the water inlet pipe of the wet film humidifier. Figure 6-23 Removing the wet film humidifier from a downflow unit (NetCol8000-C070D) Figure 6-24 Removing the wet film humidifier from a downflow unit (NetCol8000-C130D) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 174: Replacing A Built-In Water Valve Actuator
Step 7 Choose Settings > System Settings > System Control and set Humidifying function to Enable. ----End 6.4.7 Replacing a Built-in Water Valve Actuator Context Tools: diagonal pliers, cable ties Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 175 Step 6 Install a new water valve actuator. (Optional) Use the actuator handle to remove the locating pin from the hole in the mounting kit of the new actuator. See Figure 6-27. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 177: Replacing A Psu
QF1 and standby power switch QF2. Step 3 Open the front door and push the latch on the PSU downwards, as shown by (1) Figure 6-29. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 178 Step 5 Insert the spare PSU into the corresponding slot of the power distribution subrack, and push the latch downwards to lock the PSU. Step 6 Power on the device. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 179: Replacing An Inlet Solenoid Valve
Step 6 Remove the intake tube of the inlet solenoid valve. Step 7 Install a new water inlet solenoid valve. Step 8 Power on the device. Step 9 Tap Start on the home screen. ----End Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 180: Replacing A T/H Sensor
Step 3 Remove the cable terminals from the ports on the T/H sensor. Step 4 Pull out the T/H sensor in the direction. Figure 6-32 Replacing aT/H sensor (upflow) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 181 Step 5 Connect the cable terminals to the ports on the T/H sensor, and install a new T/H sensor in the original position. Step 6 Close the front door. Step 7 Tap Start on the home screen. ----End Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 183 ● 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 7-1 Start/Shutdown over the LCD Figure 7-2 Start/Shutdown over the NetEco WebUI Figure 7-3 Start/Shutdown over the hardware port Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 184: How Do I Query The Setting Of A Parameter Before Change
● Before using a USB flash drive, ensure that its data has been scanned by antivirus software and is secure. Procedure Step 1 Connect a USB flash drive. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 185: How Do I Export Data
With the one-click mode, you can export active alarms, historical alarms, run logs, and so on. Procedure Step 1 Choose Maintenance > USB Operations > Export to enter the Select Path screen. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 186: How Do I Export Or Import A Configuration File
Step 3 After the data is successfully exported, tap Finish. Step 4 On the home screen, choose Maintenance > USB Operations > Remove USB to remove the USB flash drive in safe mode. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 187: How Do I Import A Certificate And Key
The CA certificate file, local certificate file, and key file have been saved in a USB flash drive. NO TICE Ensure that the key file has been encrypted using AES128. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 188: Display Module Screen Operations
Step 1 On the home screen, choose Settings > Comm Settings > LAN IP Settings, and set LAN IP assigning mode to Manual. Set LAN IP address, LAN subnet mask, and LAN gateway based on the actual plan. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 189: How Do I Check Temperature And Humidity Curves
You can choose to display the curves in recent one hour, one day, seven days, or 30 days. Procedure Step 1 Tap T/H Curve on the home screen. Figure 7-13 T/H Curve screen Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 190: How Do I Query Logs
View on Equip Details: The following describes how to view the status of a T/H sensor. On the home screen, choose Running > Equip Details > T/H Sensor. ----End Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 191: How Do I View System Parameters
----End 7.4.8 How Do I Mute the Buzzer? Context After a buzzer is muted, it does not buzz when a new alarm is generated. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 192: How Do I Handle Active Alarms
Perform operations as required. Step 3 Tap Fault Diagnosis_Repair to view the diagnosis report. Rectify the faults following instructions in the diagnosis report. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 193: How Do I Clear Component Runtime
20°C while the value measured by the sensor is 22°C, the sensor has an error of 2°C, and the calibration value should be set to –2°C. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 194: How Do I Change The Password
The method for setting each alarm is the same. This section describes how to set Threshold of Supply air high temperature alarm to 45. ● If you need to change alarm settings, log in as the Admin user. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 195: How To Commission Single Component
If you need to manually turn on or off system components in diagnostic mode, ensure that the smart cooling product is started before operation. ● Take commissioning the indoor fan as an example. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 196: How Do I Handle An E-Label Identification Problem
If the information shown in Figure 7-19 is displayed on the screen of the display module, the smart cooling product can run properly. To remove this tip, perform Step Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 197: Webui Operations
Step Step 2 Disconnect the main power supply from the smart cooling product. Step 3 Contact technical support to replace the smart cooling product backplane. ----End 7.5 WebUI Operations Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 198: 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 7-21 Changing the login password Enter Login user password and click Submit. Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 199 – 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 200: 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 201: 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 202: 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 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 203: A Glycol Adding Requirements
–10°C –10°C to –5°C –15°C –15°C to –10°C –20°C –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 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 204: B Physical Ports
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual B Physical Ports Physical Ports B.1 NetCol8000-C070U Figure B-1 Physical ports Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 205: Netcol8000-C130U
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual B Physical Ports B.2 NetCol8000-C130U Figure B-2 Physical ports Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 206: Netcol8000-C190U
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual B Physical Ports B.3 NetCol8000-C190U Figure B-3 Physical ports Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 207: Netcol8000-C070D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual B Physical Ports B.4 NetCol8000-C070D Figure B-4 Physical ports Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 208: Netcol8000-C130D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual B Physical Ports B.5 NetCol8000-C130D Figure B-5 Physical ports Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 209: Netcol8000-C190D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual B Physical Ports B.6 NetCol8000-C190D Figure B-6 Physical ports Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 210: C Base Drawings
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Drawings Base Drawings C.1 NetCol8000-C070U Figure C-1 Base drawing (unit: mm) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 211: Netcol8000-C130U
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Drawings C.2 NetCol8000-C130U Figure C-2 Base drawing (unit: mm) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 212: Netcol8000-C190U
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Drawings C.3 NetCol8000-C190U Figure C-3 Base drawing (unit: mm) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 213: Netcol8000-C070D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Drawings C.4 NetCol8000-C070D Figure C-4 Base drawing (unit: mm) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 214: Netcol8000-C130D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Drawings C.5 NetCol8000-C130D Figure C-5 Base drawing (unit: mm) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 215: Netcol8000-C190D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Drawings C.6 NetCol8000-C190D Figure C-6 Base drawing (unit: mm) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 216: D Electrical Diagrams
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Electrical Diagrams Figure D-1 Electrical diagram 1 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 217 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Figure D-2 Electrical diagram 2 Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 218 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Figure D-3 Electrical diagram (NetCol8000-C130D with an external water valve actuator) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 219 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Figure D-4 Electrical diagram (NetCol8000-C130D with an external water valve actuator) Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 220: E Acronyms And Abbreviations
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual E Acronyms and Abbreviations Acronyms and Abbreviations alternating current computational fluid dynamics controller area network direct current electronic commutation fast Ethernet Internet Protocol Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 221 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual E Acronyms and Abbreviations liquid crystal display negative temperature coefficient personal computer positive temperature coefficient RCCB residual current circuit breaker Universal Serial Bus Issue 09 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

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