Page 1 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual Issue Date 2021-12-30 HUAWEI TECHNOLOGIES CO., LTD.
Page 2 Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...
Page 3: About This Document
Intended Audience This document is intended for: ● Sales engineers ● Technical support engineers ● System engineers ● Hardware installation engineers ● Commissioning engineers ● Data configuration engineers ● Maintenance engineers Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 4 Updated 6.4.6 Replacing a Wet Film Humidifier. 2021-11-30 Added Figure 2-7. Added 3.6.5 (Optional) Installing Cables for the External Water Valve Actuator. Added D.1 NetCol8000-C130D with an External Water Valve Actuator. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 5 2.1 Model Number 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 6: Table Of Contents
3.2.2 Material Preparations..............................38 3.2.2.1 Water Inlet Pipe of the Wet Film Humidifier....................... 38 3.2.2.2 Drainpipe................................... 39 3.2.2.3 Chilled Water Inlet and Outlet Pipes........................39 3.2.2.4 Pipe Support Preparations............................40 3.2.2.5 Cables....................................40 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 7 3.6.11 (Optional) Installing a Cap (Applicable to Upflow Units)................83 3.7 Installation Verification...............................86 4 Power-On Commissioning....................90 4.1 Power-On Preparations............................... 90 4.2 Power-On....................................91 4.3 Home Screen..................................97 4.4 Menu Function Description............................... 99 4.5 Setting Parameters................................100 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 8 6.4.6.1 Replacing a Wet Film Humidifier (for an Upflow Model)................178 6.4.6.2 Replacing a Wet Film Humidifier (for a Downflow Model)................. 179 6.4.7 Replacing a Built-in Water Valve Actuator......................181 6.4.8 Replacing a PSU................................184 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 9 7.5.7 How Do I View Version Information?........................209 A Glycol Adding Requirements....................210 B Physical Ports........................211 B.1 NetCol8000-C070U................................211 B.2 NetCol8000-C130U................................212 B.3 NetCol8000-C190U................................213 B.4 NetCol8000-C070D................................213 B.5 NetCol8000-C130D................................214 B.6 NetCol8000-C190D................................216 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd. viii...
Page 10 C.3 NetCol8000-C190U................................219 C.4 NetCol8000-C070D................................220 C.5 NetCol8000-C130D................................221 C.6 NetCol8000-C190D................................222 D Electrical Diagrams......................223 D.1 NetCol8000-C130D with an External Water Valve Actuator................225 E Parameter Description....................... 227 F Acronyms and Abbreviations....................243 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 11: Safety Information
● Failure to follow the operation instructions and safety precautions on the product and in this document ● Equipment damage due to force majeure, such as earthquakes, fire, and storms Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 12 ● Keep irrelevant people away from the equipment. Only operators are allowed to access the equipment. ● Use insulated tools or tools with insulated handles, as shown in the following figure. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 13 Do not change the structure or installation sequence of equipment without permission. ● Do not touch a running fan with your fingers, components, screws, tools, or boards before the fan is powered off or stops running. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 14: Personnel Requirements
Do not operate the equipment in the absence of a properly installed ground conductor. ● Ensure that the equipment is connected permanently to the protective ground. Before operating the equipment, check its electrical connection to ensure that it is securely grounded. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 15 0°C. Handle cables with caution, especially at a low temperature. – Cables stored at subzero temperatures must be stored at room temperature for at least 24 hours before they are laid out. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 16: Installation Environment Requirements
Install the equipment in an area far away from liquids. Do not install it under areas prone to condensation, such as under water pipes and air exhaust vents, or areas prone to water leakage, such as air conditioner vents, ventilation Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 17 Any violations must be promptly pointed out by the site manager or safety supervisor and the involved personnel should be prompted for correction. Personnel who fail to stop violations will be forbidden from working. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 18: Mechanical Safety
Ensure that the wider end of the ladder is at the bottom, or protective measures have been taken at the bottom to prevent the ladder from sliding. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 19 When pulling the equipment out of a cabinet, be aware of unstable or heavy objects on the cabinet to prevent injury. ● Be cautious to avoid injury when moving heavy objects. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 20: Cooling System Safety
● When maintaining or replacing components, pay attention to high-pressure components (such as the compressor and refrigerant pipe) to prevent the refrigerant system from being cracked or exploded due to misoperations. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 21: Others
The dealer can help you recycle devices in a safe and environment-friendly way. 1.7 Others Exercise caution when shutting down the smart cooling product. Doing so may cause equipment and room overheating, which will damage the equipment. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 22: Product Description
● NetCol8000-C190D40D0 ● 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 23: Technical Specifications
Air volume (m 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 24 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 25: Components
20%–80% RH adjustment range Humidity 5% RH adjustment precision 2.3 Components 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. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 26 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual 2 Product Description Figure 2-2 NetCol8000-C (upflow) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 27 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual 2 Product Description Figure 2-3 NetCol8000-C (downflow) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 28: Interior
(14) Electric heater (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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 29 (6) Connection box (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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 30 (6) PSU (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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 31 (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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 32 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 33 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 34: Display Module
Running Status Green 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 35 ● Independent teamwork control: If a communications cable in the teamwork network is disconnected, two teamwork networks are formed. A unit in the network without a master unit can automatically become the master unit to continue teamwork control. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 36 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 37: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 39: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 40: Installation
(A) Chilled water inlet (B) Chilled water outlet (1) Balance valve or isolation valve (2) Water filter (3) Isolation valve (4) Flexible connection (5) Chilled water valve (6) Heat exchanger (7) External components Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 41: Downflow Layout Requirements
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 Pipe Layout Requirements Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 42 ● 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 43 ● L indicates the front maintenance distance, and the minimum L is 900 mm. If this requirement cannot be met, the minimum L after front doors are removed can be 800 Figure 3-4 Layout of bottom pipe routing (2) (1) NetCol8000-C Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 44: Installation Requirements
The customer is advised to add a dehumidifier (engineering procurement). Pipe Ports The following table lists the pipe ports reserved on the NetCol8000-C. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 45: Installation Preparations
DC pulses and transient current pulses. 3.2 Installation Preparations 3.2.1 Tools Table 3-3, Table 3-4, Table 3-5 Table 3-6 list the tools for installing the NetCol8000-C. Add or delete tools as required. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 46 Needle-nose Diagonal pliers Combination Torch pliers pliers Measuring tape Step ladder Polyvinyl chloride Claw hammer (PVC) insulation tape Table 3-4 Tools for transportation Name, Specifications, and Appearance Pallet jack Forklift Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 47 ● The maximum pressure is greater than 1.6 MPa. engineering mechanical the anaerobic adhesive ● Conforms to JB∕T7311-2008 application technology specification profession standard. Table 3-6 Tools for electrical connections and tests Name, Specifications, and Appearance Clamp meter Insulation gloves Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 48: Material Preparations
(3) Pipe: used with the adapter NO TE (1) in the dotted box is a reserved port. Other items need to be purchased. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 49: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 50: Pipe Support Preparations
● 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 51 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual 3 Installation Table 3-7 Description about the cables of the NetCol8000-C070 Applica Name Technical Requirements Remarks tion Scenari Indoor Power cable Electrical power cable, 600 V/ The length is...
Page 52 Teamwo Standard Signal cable, shielded The length is rk and network cable straight-through cable, 10 m, determined based monitor MP8-II, CC4P0.5GY(S), MP8- on engineering II, FTP survey. network cables Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 53: Unpacking And Acceptance
– 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 54 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 55: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 56: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 57: Securing Equipment
● For a single-door unit and double-door unit, tighten only the four screws at both sides. ● 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 58: Lowering A Fan (Applicable To Downflow Units)
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. Figure 3-16 Removing the baffle plate Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 60: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 61: Cabinet Hole Positions
(2) Signal cable (3) Chilled water inlet hole pipe hole (4) Humidifier water (5) Chilled water (6) Active power cable inlet pipe hole outlet pipe hole hole (7) Standby power cable hole Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 62: Installing The Chilled Water Pipe
(7) Standby power cable hole (8) Active power cable hole 3.5.2 Installing the Chilled Water Pipe Context CA UTION Before installing the pipe, release all nitrogen from the pipe to avoid personal injury. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 63: Upflow
G 2in, connected over screw threads screw threads 3.5.2.1 Upflow Context Tools: 75# open-end wrench, 36# open-end wrench, 18# pipe wrench, sealant (used for pasting thermal insulation foam), screw thread sealant Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 64 3-24. Figure 3-24 Connecting pipes NO TE The figure uses side pipe routing as an example. If bottom pipe routing is used, purchase right angle elbows with DN50 outer threads onsite. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 65: Downflow
Step 4 Use a 75# open-end wrench and 18# pipe wrench to fix the pipe, as shown by (4) Figure 3-25. Step 5 Install the pipe baffle plate at the bottom of the cabinet, and wrap the pipe with thermal insulation foam, as shown by (5) in Figure 3-25. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 66: Optional) Installing Pipes For The External Water Valve Actuator
Step 1 Install the water valve and actuator. Figure 3-26 Installing the water valve and actuator (1) Water valve (2) Water valve actuator Step 2 Connect the water valve actuator to the water outlet pipe of the unit. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 67: Installing The Drainpipe
● 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. Figure 3-28 Connecting the drainpipe for an upflow unit (1) Drainpipe Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 68: Optional) Installing The Water Inlet Pipe For The Wet Film Humidifier
Onsite connection: Connect a pipe with a G 1/2 in. port and inner threads to the port reserved in the device. A stop valve needs to be installed at the water Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 69: 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. Figure 3-31 Upflow Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 70: Leakage Test With Water
Step 2 Verify that the chilled water valve is open (100%). If not, press the button on the side of the actuator, and manually rotate the valve handle to the maximum. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 71 24 hours. The expected result is that the pressure drop is less than 0.01 MPa and the pipe does not leak. Then, release the pressure in the pipe. Step 6 Manually close the chilled water valve. ----End Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 72: Installing Cables
(4) Wiring terminal for the (5) Electric heater contactor (6) Dual power supply switch water valve actuator over contactor KM1/KM2 KM4/KM5 (7) Intermediate relay KM3 (8) Fuses 1–4 (9) Electric heater switch QF3 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 73 (8) Intermediate relay KM3 (9) Electric heater switch QF3 over contactor KM1/KM2 (10) Electric heater contactor KM4/KM5 NO TE a: The NetCol8000-C070D unit does not have the terminal of the electric heater contactor (KM5). Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 74: Installing Power Cables
Procedure 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 75 Step 2 Connect wiring terminals of the L1, L2, and L3 wire of the input power cable respectively to the corresponding terminals of the external power cable. Step 3 Connect the PE cable to the cabinet ground screw, as shown in the following figure. ● Upflow Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 76: Installing Signal Cables
Figure 3-39 Cabling for upflow units with dual power supplies ● Downflow Figure 3-40 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 77 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 78: Optional) Installing Teamwork And Monitoring Communications Cables
Step 1 Crimp a network cable. Figure 3-42 Teamwork communications cable and FE monitoring communications cable (1) White-and-orange (2) Orange (3) White-and-green (4) Blue (5) White-and-blue (6) Green (7) White-and-brown (8) Brown Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 79: Independent Networking Scenario
≤ 4), set recommended: RS485 monitoring grouping to Enable on the Modbus Settings screen for the unit with the COM/FE port connected. Retain the default setting (Disable) for other units. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 80: Can Teamwork + Fe Monitoring
One teamwork network supports a maximum of 32 units. On the Teamwork Settings screen of the display modules of the first and last units, set Enable teamwork CAN resistor to Yes. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 81: Optional) Installing Cables For The External Water Valve Actuator
Step 1 Route the cables of the water valve actuator through the hole on the unit according to the route shown in the figure. Step 2 Connect the cables of the water valve actuator to the specified ports of the unit based on the mapping. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 82 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 83: Optional) Installing A Gravity Damper (Only For An Upflow Unit)
Step 1 Secure the air damper to the beam on the top of the unit. Step 2 Connect the air damper cable according to the figure. Independent installation (applicable to the NetCol8000-C070D/NetCol8000- C130D): The air damper actuator is located on the left side. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 84 (1) Air damper (2) Air damper actuator Figure 3-49 Motorized damper wiring Combined installation (applicable to NetCol8000-C190D): Two air dampers are installed side by side, and the actuator is located leftward. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 85 (3) Air damper actuator Figure 3-51 Motorized damper wiring X504 Signal Cable Terminal Air Damper Actuator Cable Color X504-5 (AO) White X504-6 (AI) Orange X504-7 (GND) Black X504-8 (24 V DC power) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 86: 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 3-52 Connecting T/H sensors (upflow model) (1) T/H sensor outside the cabinet Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 87 (1) Return air T/H sensor (2) T/H sensor outside a (3) 568B standard network cabinet cable Step 2 Set the DIP switches of T/H sensors. Table 3-11 shows the DIP switch settings for T/H sensors. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 88 Cold Cold aisle aisle sensor 1 Cold aisle sensor 2 Cold aisle sensor 3 aisle aisle sensor 1 aisle sensor 2 aisle sensor 3 Direct Fresh ventila tion tempera ture humidit Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 89: Optional) Installing The Direct Free-Cooling Plenum
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 90 ● You do not need to connect the other port on the pressure differential sensor to the PU hose. ● 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. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 91: Optional) Installing A Downflow Differential Pressure Sensor
Common Settings, and set Air-side difference pressure sensor type to 0~500Pa. Procedure Step 1 Secure the differential pressure sensor inside the cabinet using two M3 screws, with the pressure inlet tube port facing downwards. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 92 1/2 height of the raised floor under the air supply vent, with the hose end facing downwards. For details about securing the PU hose, refer to the binding requirements in Figure 3-58.) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 93: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 94 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 95 ● 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 96: Installation Verification
The foreign matter inside the water pan is □Passed □Failed cleaned up. (Optional) The water inlet solenoid valve is secured. □Passed □Failed Wet film The wet film humidifier is secured reliably □Passed □Failed humidifier and steadily. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 97 □Passed □Failed properly installed and secured, without leaks. The water inlet and outlet pipes are □Passed □Failed routed smoothly, without bends. The drainpipe has a gradient (1:100 is □Passed □Failed recommended). Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 98 The actuator is reliably and securely □Passed □Failed connected. The T/H sensor is secured reliably and □Passed □Failed steadily as required. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 99 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual 3 Installation Check Item Expected Result Actual Result The differential pressure tube is reliably □Passed □Failed secured without blockage or bend. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 100: Power-On Commissioning
Step 8 Verify that the cable connections and DIP switch settings of the T/H sensors are correct. 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 101: Power-On
Figure 4-1 Initial 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 102 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 103 After this function is enabled, the master unit synchronizes the temperature and humidity control type and setpoints to all slave units. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 104 DO_1. For details, see DO_1 description. DO_2 action This parameter can be set to On or Off, and is used together with DO_2. For details, see DO_2 description. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 105 ● If this parameter is set to No, no alarm is generated when DO_2 is disconnected. ● If this parameter is set to Power abnormal, DO_2 acts according to DO_2 action when a power exception alarm is generated. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 106 ● Return air: 18–45°C recommended ● Supply air: 15–35°C recommended ● Cold aisle: 15–35°C recommended ● Hot aisle: 18–45°C recommended Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 107: Home Screen
Running, Alarms and Settings. Figure shows the home screen of the display module. NO TICE User interfaces displayed in this document are for reference only. Figure 4-2 Home screen Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 108 Warnings indicates the number of active warnings. Status bar Alarm bar You can tap in the alarm bar to enter the active alarm screen that displays all active alarms. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 109: Menu Function Description
Sets the involved parameters for the operation of the smart cooling product. ● Maint Checks or deletes the logs or component total runtime/run factor, manually diagnoses each component, calibrates the sensor and touch screen, exports data, and upgrades the system. ● About Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 110: Setting Parameters
Step 2 Set Return air sensor 2 to Enable. Step 3 Set the temperature and humidity parameters by referring to Table 4-4. NO TE You are not recommended to modify the parameters not listed in Table 4-4. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 111 ● Supply air: 18–24°C performs cooling or heating recommended based on the settings. ● Cold aisle: 18–24°C recommended ● Hot aisle: 26–35°C recommended Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 112: Optional) Setting The Pressure Difference Control
Set it to 0~500 Pa. differential pressure sensor. Min indoor fan speed Sets the minimum speed The default value is 60%. for the indoor fan. You are advised not to change the value. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 113: Setting Teamwork Control Parameters
Teamwork function and Networking mode can be set on slave smart cooling products. Other parameters of the slave units will be modified by the master unit synchronously. Table 4-6 describes how to set the parameters. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 114 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 115 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 116 After this function is enabled, the master unit synchronizes the temperature and humidity control type and setpoints to all slave units. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 118 Check whether the number of active devices on the topology is the same as the actual device number. – If yes, go to 3. – If no, check the cable connection and the settings of teamwork control parameters. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 119: Setting Communications Parameters
● If this parameter is set to Disable, the function will be enabled within 30 minutes after power-on by default. ● If this parameter is set to Enable, the function will be automatically disabled after 24 hours of running. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 120: Setting Communications Parameters (Modbus Rtu Protocol)
"Enable". ----End 4.5.4.3 Setting Communications Parameters (Modbus TCP Protocol) Context This section applies to the scenario where the device is connected to the NMS. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 121 Step 4 When Client encryption is set to Enable, set NMS port number to 32907. When Client encryption is set to Disable, set NMS port number to 32906. NO TE The encryption mode must be the same as it on the NMS. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 122: Setting Communications Parameters (Snmp Protocol)
One smart cooling product supports concurrent access of up to 6 EMSs through SNMP. Procedure Step 1 On the home screen, choose Settings > Comm Settings > SNMP Settings. The screen shown in Figure 4-10 is displayed. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 123 MD5 and DES protocols are not secure. It is recommended that you set Auth Protocol to SHA2-512, and set Prop Protocol to AES-256. The following operations use the recommended settings as an example. Figure 4-11 Setting the protocol type Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 124 Select SNMP Version. If an SNMPv3 user is configured, it is recommended that SNMP Version be set to SNMPv3. If SNMP Version is set to SNMPv3, you need to select SNMPv3 User Name. For other protocols, you need to set Trap Community. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 125: Optional) Setting Wifi Parameters
Enter the WiFi password when you use a mobile phone to connect to the WiFi. The WiFi has no default password. When you enable the WiFi function for the first time, you need to set a password. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 126: Correlation Relationship Of Parameters
Number of smart cooling products in this group ≥ Number of running smart cooling products in this group Parameters of Cooling cap. mgt. Upper limit of water supply temperature > Lower limit of water supply temperature Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 127: Startup
Android currently. You must apply for the permission to use the app after downloading it. Step 1 Tap Startup on the home screen of the display module to enter the startup screen. Log in as the admin user, as shown in Figure 4-14. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 128 Figure 4-15 Initial startup Figure 4-16 Entering the startup password Step 2 Select Offline Boot Online Boot as required on the Service Expert app for initial startup verification. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 129 Step 2 Tap StartUp on the home screen of the app. The screen shown in Figure 4-17 displayed. Figure 4-17 Offline boot Step 3 Tap Offline Activation. The screen shown in Figure 4-18 is displayed. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 130 Step 4 Open the Service Expert app. Step 5 Tap StartUp on the home screen of the app and the screen shown in Figure 4-19 is displayed. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 131 Step 6 Tap Login after the parameters are set. Step 7 After login, tap Power-on password activation on the screen. The screen shown Figure 4-20 is displayed, indicating whether to start the smart cooling product. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 132: Wizard Startup
Choose Maint > Wizard Startup to enter the Wizard Startup screen for new commissioning. Procedure Step 1 On the home screen, choose Maint > Wizard Startup, as shown in Figure 4-21. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 133 Step 3 Tap Yes for check items one by one according to the prompt messages on the screen. Step 4 Tap Yes. The screen for selecting commissioning items is displayed, as shown in Figure 4-23. Figure 4-23 Selecting commissioning items Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 134 The screen shown in Figure 4-25 is displayed if component commissioning succeeds. Figure 4-25 Commissioning successfully ● The screen shown in Figure 4-26 is displayed if component commissioning fails, which ends startup wizard commissioning. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 135: Optional) Power-Off
Step 1 Tap Shutdown on the home screen of the display module. A dialog box is displayed, indicating whether to shut down the smart cooling product, as shown in Figure 4-28. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 136: Optional) Antifreezing
Step 1 Remove the plugs from the drainage needle valves of the heat exchanger. ● (For the upflow units) Remove the plugs from the drainage needle valves 1 and 2 of the heat exchanger, to drain water naturally until no water flows out. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 137 2 of the heat exchanger, set the intake pressure to 0.5 MPa, and blow nitrogen into the valve for 10 minutes, so that the water flows out of the drainage needle valve 1. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 138: Checking After Commissioning
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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 139: Web Introduction
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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 140 Click the Advanced tab and select Use TLS1.1 and Use TLS1.2. Figure 5-1 Setting Internet options (Optional) Click the Connections tab and select LAN settings. (Optional) Under Proxy server, deselect Use a proxy server for your LAN. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 141 Figure 5-3 Security certificate problem On the login page, enter the preset user name admin and preset password Changeme, set the language, and click Log In. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 142: Webui Description
Table 5-1 Functions provided by the home page Functions System ● View the temperature and humidity control type and Overview setpoints. ● View cooling output, fan output, humidifying output, and heating output. Active Alarms Query active alarms. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 143 ● Query the version and e-labels. ● 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 144: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 145: Monthly Maintenance
12 months). 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 146: Semi-Annual Maintenance Items
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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 147 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 148: Annual Maintenance
Clear button after the fault is rectified. ● The alarm clearance type varies depending on the smart cooling product model. Some alarms can be cleared automatically and manually. You can clear alarms based on the site requirements. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 149 ● The chilled water chilled water. flow is insufficient, 7. Maintain or replace or the supply water the chilled water temperature is valve. high. ● The chilled water valve is stuck or faulty. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 150 6. Maintain or replace ● The air filters are the air filters. blocked. 7. Maintain or replace ● The chilled water the chilled water valve is stuck or valve. faulty. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 151 Hot aisle 3 temp/ humid sensor comm failed Hot aisle 4 temp/ humid sensor comm failed Hot aisle 5 temp/ humid sensor comm failed Fresh air 1 temp/ humid sensor comm failed Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 152 Electric heater 2 fault are loose or 2. Maintain or replace damaged. the temperature ● The temperature switch. switch is faulty. 3. Replace the electric ● The electric heater heater. is faulty. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 154 ● The chilled water chilled water. flow is insufficient, 7. Maintain or replace or the supply water the chilled water temperature is valve. high. ● The chilled water valve is stuck or faulty. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 155 6. Maintain or replace ● The air filters are the air filters. blocked. 7. Maintain or replace ● The chilled water the chilled water valve is stuck or valve. faulty. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 156 ● The chilled water chilled water. flow is insufficient, 7. Maintain or replace or the supply water the chilled water temperature is valve. high. ● The chilled water valve is stuck or faulty. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 157 If the drive is integrated into the A077-08 Indoor fan 2 fault fan, replace the fan. Indoor fan 3 fault If the drive is separate from the fan, replace the drive. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 158 6. Maintain or replace ● The air filters are the air filters. blocked. 7. Maintain or replace ● The chilled water the chilled water valve is stuck or valve. faulty. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 159 6. Maintain or replace ● The air filters are the air filters. blocked. 7. Maintain or replace ● The chilled water the chilled water valve is stuck or valve. faulty. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 160 ● The low humidity 4. Calibrate or replace alarm threshold is the temperature inappropriate. and humidity ● The value detected sensor. by the temperature and humidity sensor is different from the actual value. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 161 3. Calibrate or replace inappropriate. the supply water ● The value detected temperature sensor. by the supply water temperature sensor is different from the actual value. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 163 ● The cable to the humidifier pump. humidifier pump is 4. Replace the not connected humidifier pump. properly. 5. Replace the water ● The humidifier pump. pump is faulty. ● The water pump is blocked. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 164 Indoor fan 3 blocked alarm A220-01 Wizard startup is in Warning Wizard startup is in Wait until wizard progress progress. startup is complete or clear the alarm manually to exit wizard startup. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 165 ● A slave unit is to the actual offline. number on the master unit. 3. Check the teamwork cable connection and running status of the slave units. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 167 Critical The water overflow If the water overflow sensor detects water sensor is configured, or the sensor is faulty. check and clear the water source, and maintain or replace the sensor. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 168 Backup power phase ● The SPD and 2. Maintain or replace sequence abnormal voltage detection the SPD and board may be voltage detection faulty if it is board. configured. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 169: Troubleshooting
Exercise caution during live-line troubleshooting. 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 170 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 172: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 173: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 174 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 175 Step 5 Remove the eight screws that secure the bottom of the fan frame to the bottom plate of the fan. 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 177 Step 12 Install the fan maintenance baffle and close the front door. Step 13 On the home screen, choose Maint > Performance Maint to enter the Performance Maint screen and clear the runtime of the indoor fan. ----End Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 178: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 179 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. Figure 6-10 Removing a fan Step 7 Remove the connection box cover using a security torx wrench. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 180 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 181: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 182: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 183: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 184: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 185 Step 7 On the home screen, choose Maint > Wizard Startup, and commissioning the electric heater to check that the heater is normal. Then exit from the wizard startup mode. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 186: Replacing A Display Module
Exercise caution because the device is still energized after it is shut down on the screen of the display module. Step 2 Open the front door and turn off the general switch. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 187 Step 6 Set the new differential pressure switch to 500 Pa for upflow, and set the new differential pressure switch to 300 Pa for downflow, install a new differential pressure switch by performing Step 5–Step 3, and then close the front door. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 188: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 189: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 190 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 191: Replacing A Built-In Water Valve Actuator
Performance Maint screen, and clear the runtime of the wet film humidifier. 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 192 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 194: Replacing A Psu
Exercise caution because the device is still energized after it is shut down on the screen of the display module. Step 2 Open the front door and push the latch on the PSU downwards, as shown by (1) Figure 6-29. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 195 When installing a new PSU, ensure that the handle is in the lower part of the PSU. Step 4 Insert the spare PSU into the corresponding slot of the power distribution subrack, and push the latch downwards to lock the PSU. ----End Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 196: Replacing An Inlet Solenoid Valve
Figure 6-31 Removing the screws securing the sheet metal of the water inlet solenoid valve Step 6 Remove the intake tube of the inlet solenoid valve. Step 7 Install a new inlet solenoid valve by performing Step 6 Step ----End Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 197: Replacing A T/H Sensor
Step 2 Open the front door. 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 198 T/H sensor. That is, the first toggle switch is ON, and the others are OFF. 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. ----End Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 199: Faq
LCD and NetEco WebUI has the same priority. ● If ON/OFF via NMS is disabled on the LCD of the unit, the unit cannot be started or shut down over the NetEco. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 200: How Do I Query The Setting Of A Parameter Before Change
The value before -> is the setting before change, and the value after -> is the setting after change. NO TE The log query screen displays logs of LCD user operations, including user login and setting change records. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 201: 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. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 202: How Do I Export Data
Step 3 After the data is successfully exported, tap Finish. Step 4 On the home screen, choose Maint > USB Operations > Remove USB to remove the USB flash drive in safe mode. ----End Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 203: How Do I Import And Export A Configuration File
Step 5 On the home screen of unit 2, choose Maint > USB Operations > Import Config. Figure 7-9 Selecting a file Step 6 Select the file package to be imported and tap Next. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 204: How Do I Import A Certificate And Key
Ensure that the key file has been encrypted using AES128. Procedure Step 1 On the home screen, choose Maint > USB Operations > Import Certificate. Figure 7-11 Importing a security certificate Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 205: Display Module Screen Operations
● If the LAN IP address of the unit has been changed, the LAN IP address of the unit remains unchanged when the Teamwork function is enabled. ● The LAN IP address must be in the 192.168.248.X network segment. ----End Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 206: How Do I Check Temperature And Humidity Curves
----End 7.4.3 How to Query Logs Context The Query Logs screen displays the operations performed by the user. Procedure Step 1 On the home screen, choose Maint > Query Logs. ----End Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 207: How Do I View Component Status
Overview screen is displayed. ----End 7.4.6 How to Query Version Details Procedure Step 1 On the home screen, select About. Step 2 On the About screen, tap Version Info or E-label. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 208: How To View Teamwork Control Information
Off. The icon changes to ----End 7.4.9 How Can I Handle Active Alarms? Procedure Step 1 Tap (or choose Alarms > Query Act Alarms) on the home screen to enter the active alarms screen. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 209 Figure 7-15 Diagnosis report ----End Follow-up Procedure To query historical alarms, choose Common Function > Query Hist Alarms or Alarms > Query Hist Alarms on the home screen. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 210: How Do I Clear Component Runtime
7.4.12 How Do I Change the Password? Prerequisites ● If you need to change a password, log in as user admin or operator. ● You can only change the password of the current user. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 211: How To Set Alarm Parameters
Be careful when configuring alarms. Only professional maintenance personnel can change alarm settings. Procedure Step 1 Choose Settings > Alarm Settings > T/H Sensor on the home screen. Figure 7-17 is displayed. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 212: 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. Procedure Step 1 Choose Maint > Diagnostic Mode > Enter. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 213: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 214: Webui Operations
If no, continue with 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 215: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 216 – Retrieve the password if you forget 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 217: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 218: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 219: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 220: A Glycol Adding Requirements
Glycol Volume Freezing Point of Glycol Temperature Concentration Mixed Solution to Be Added 0℃ 13.6% -5℃ -5℃~0℃ -10℃ -10℃~-5℃ -15℃ -15℃~-10℃ -20℃ -20℃~-15℃ -25℃ -25℃~-20℃ -30℃ -30℃~-25℃ -35℃ -35℃~-30℃ -40℃ -40℃~-35℃ -45℃ Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 221: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 222: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 223: 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 B.4 NetCol8000-C070D Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 224: Netcol8000-C130D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual B Physical Ports Figure B-4 Physical ports B.5 NetCol8000-C130D Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 226: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 227: C Base Dimensions
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Dimensions Base Dimensions C.1 NetCol8000-C070U Figure C-1 Base drawing (unit: mm) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 228: Netcol8000-C130U
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Dimensions C.2 NetCol8000-C130U Figure C-2 Base drawing (unit: mm) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 229: Netcol8000-C190U
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Dimensions C.3 NetCol8000-C190U Figure C-3 Base drawing (unit: mm) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 230: Netcol8000-C070D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Dimensions C.4 NetCol8000-C070D Figure C-4 Base drawing (unit: mm) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 231: Netcol8000-C130D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Dimensions C.5 NetCol8000-C130D Figure C-5 Base drawing (unit: mm) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 232: Netcol8000-C190D
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual C Base Dimensions C.6 NetCol8000-C190D Figure C-6 Base drawing (unit: mm) Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 233: 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 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 234 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Figure D-2 Electrical diagram 2 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 235: Netcol8000-C130D With An External Water Valve Actuator
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams D.1 NetCol8000-C130D with an External Water Valve Actuator Figure D-3 Electrical diagram 1 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 236 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Figure D-4 Electrical diagram 2 Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 237: E Parameter Description
Specifies the key lifecycle. 180Day Settings > Supply air high An alarm is generated 40.0°C Alarm temperature when the system detects Settings > alarm that the value exceeds the T/H sensor corresponding threshold. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 239 Supply water low An alarm is generated 0.0°C temperature when the system detects alarm that the value exceeds the corresponding threshold. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 240 NMS. Settings > Active alarms are Humidifier displayed on the display module and the system performs related protection actions. ● Disable: Alarms are not reported and no protection actions are implemented. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 241 NMS. abnormal alarm Active alarms are displayed on the display module and the system performs related protection actions. ● Disable: Alarms are not reported and no protection actions are implemented. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 242 Select the proper differential pressure sensor type based on measurement range of the differential pressure sensor. Motorized This parameter can be set The default damper to Enable or Disable. setting is Disable. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 243 Temperature After the temperature and 22.0°C setpoint humidity control type and the temperature value under this type are set, the device performs cooling or heating based on the settings. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 245 Enabled when active power is selected, the device starts humidifying when the ambient humidity is lower than the humidity setpoint by a certain range and when the active power supply is used. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 246 Settings > or shut down the device System over the NMS. Control Air conditioner Specifies the time interval start interval between the starts of units under teamwork control. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 247 If Dehumid & low-temp heat is selected, the electric heater determines whether to start based on the temperature requirements when the dehumidification and heating conditions are met. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 248 Supply air temp Specifies the temperature 25.0°C to forcibly start threshold for forcibly cooling starting the compressor when the supply air temperature is higher than the threshold. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 249 Humidifier stopped can be set as required. In-cabinet water Shutdown, Inactivity, Humidification overflow alarm Only indoor fan running, stopped action or Humidifier stopped can be set as required. Backup power Normal supply Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 250 Indoor fan control R/S air temp diff rate ctrl, R/S air temp System type R/S air temp diff ctrl, or diff rate ctrl Settings > Pressure diff ctrl can be Indoor fan set. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 251 ● Select Enable when a direct free- cooling plenum is configured and needs to be enabled. ● Select Disable when a direct free- cooling plenum is configured but need not be enabled. Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 252 1°C lower than the value Return air 0.0%RH detected by other devices, humidity set the calibration value to calibration value 1°C. Supply water 0.0°C temperature calibration value Return water 0.0°C temperature calibration value Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 253: F Acronyms And Abbreviations
NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual F Acronyms and Abbreviations Acronyms and Abbreviations alternating current computational fluid dynamics controller area network direct current electronic commutation fast Ethernet Internet Protocol Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.
Page 254 NetCol8000-C(070, 130, 190) In-room Chilled Water Smart Cooling Product User Manual F Acronyms and Abbreviations liquid crystal display negative temperature coefficient personal computer positive temperature coefficient RCCB residual current circuit breaker Universal Serial Bus Issue 07 (2021-12-30) Copyright © Huawei Technologies Co., Ltd.

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