Page 1 NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) Issue Date 2020-10-22 HUAWEI TECHNOLOGIES CO., LTD.
Page 2 Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...
Page 3: About This Document
About This Document Purpose This document applies to the following NetCol5000-A series in-row air cooled smart cooling product: ● NetCol5000-A035: NetCol5000-A035 in-row smart cooling product ● NetCol5000-A025: NetCol5000-A025 in-row smart cooling product ● NetCol5000-A: both of NetCol5000-A025 and NetCol5000-A035 This document describes the NetCol5000-A, an in-row air cooled smart cooling product, in terms of its product description, installation guide, commissioning, and operation and maintenance (O&M).
Page 4 Updated the safety information. Issue 13 (2019-01-15) Updated the manual name and so on. Issue 12 (2018-08-05) ● Modified the section of working conditions. ● Modified the section of alarm reference. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 5 A cold aisle temperature and humidity sensor was configured in section 3.1.2. Issue 03 (2014-09-09) Modified the expression frame of section 5. Issue 02 (2014-07-07) Modified some note descriptions in section 4.4.2. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 6 NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) About This Document Issue 01 (2014-05-30) This issue is the first official release. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 7: Table Of Contents
3.1.2.4 Humidifier Water Inlet Pipe, Pump Drainpipe, and Automatic Drainpipe..........31 3.1.2.5 Pipe Support..................................33 3.1.2.6 Cables....................................33 3.1.3 Deployment Principles..............................35 3.2 Unpacking....................................36 3.3 Checking the Air Pressure..............................37 3.4 Removing the Transport Fixing Sheet Metals......................39 Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 8 4.5.2.3 Setting Temperature and Humidity Values......................92 4.5.2.4 Setting Communications Parameters (IP Address Settings)................95 4.5.2.5 Setting Communications Parameters (ModBus Settings)................95 4.5.2.6 Setting Teamwork Control Parameters........................97 4.5.2.7 (Optional) Setting Alarm Parameters........................105 4.5.3 Commissioning Guide..............................107 Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 9 5.2.1 Calculation about the Charged the Refrigerant and Refrigerant Oil............136 5.2.2 (Optional) Charging in Refrigerant Oil........................138 5.2.3 Vacuumizing..................................139 5.2.4 Partially Charging Refrigerant............................ 142 5.3 Commissioning Preparations............................143 5.3.1 Checking Before Power-on............................143 Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd. viii...
Page 10 6.5.3 Replacing a Compressor............................... 207 6.5.4 Replacing the High Pressure Switch......................... 210 6.5.5 Replacing Compressor Drive............................212 6.5.5.1 Replacing a Huawei Compressor Drive........................ 212 6.5.5.2 Replacing a Danfoss Compressor Drive....................... 216 6.5.6 Replacing Condensate Pump............................218 6.5.7 Replacing Humidifier Cylinder............................ 220 6.5.8 Replacing Electric Heater.............................
Page 11: Safety Information
The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this document do not cover all the safety instructions. They are only supplements to the safety instructions. Huawei will not be liable for any consequence caused by the violation of general safety requirements or design, production, and usage safety standards.
Page 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 17 (2020-10-22) 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 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 14: Personnel Requirements
Do not power on the equipment before it is installed or confirmed by professionals. 1.2 Personnel Requirements ● Personnel who plan to install or maintain Huawei equipment must receive thorough training, understand all necessary safety precautions, and be able to correctly perform all operations. ●...
Page 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 17 (2020-10-22) 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 17 (2020-10-22) 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 17 (2020-10-22) 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 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 19 D ANGER When removing a heavy or unstable component from a cabinet, be aware of unstable or heavy objects on the cabinet. ● Be cautious to avoid injury when moving heavy objects. Issue 17 (2020-10-22) 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 17 (2020-10-22) 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 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 22: Product Description
NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) 2 Product Description Product Description 2.1 Model Description Figure 2-1 shows the naming rule for the NetCol5000-A series products. Figure 2-1 Naming rule Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 23: Composition
(the NetCol500-A072 is used as an example), as shown in Figure 2-2. Figure 2-2 Product components (1) NetCol5000-A (2) NetCol500-A072 2.2.1 Indoor Unit Appearance Figure 2-3 shows the NetCol5000-A indoor unit. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 24 The compressor features good environment adaptability, stepless frequency adjustment, precise temperature control, energy conservation, high reliability, low noise, long service timlife, and easy installation. The R410A refrigerant used is environmentally friendly. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 25: Outdoor Unit
2.2.3 Controller The 7-inch true color-sensitive LCD with thin film transistor (TFT) offers a user- friendly interface for you to perform query, settings, monitoring, and maintenance. Figure 2-4 shows an LCD. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 26 ● You can use the remote control system purchased from Huawei to realize monitoring and managing one or more smart cooling products by Modbus protocol.
Page 27: Monitoring System
Do not install the smart cooling product near a noise-sensitive place such as an office or a conference room. Table 2-2 Operation conditions Item Specifications Operating temperature 18°C to 45°C Operating humidity 20% RH to 80% RH Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 28 0.692 0.649 0.608 coefficient Air volume 0.887 0.835 0.785 0.737 0.692 0.649 0.608 coefficient Cooling 0.940 0.909 0.878 0.846 0.815 0.784 0.753 capacity coefficient The sensible heat ratio is all 100%. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 29 When the total load of servers, relative to a single smart cooling product, is less than 10 kW, the humidity might be relatively high. It has no relationship with product quality, and you are recommended to install a dehumidifier. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 30 ● Tolerance: rated voltage ±10%; rated frequency ±3 Hz (Recommended to add a voltage regulator in the front end if the power exceeds this range. Otherwise, smart cooling product will generate frequency alarms and cannot run.) Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 31: Technical Specifications
(RCCB) that is not sensitive to the single-phase DC pulse and transient current pulse. Note: If the requirements are not met, contact Huawei technical support for an optimized plan. Water Quality Requirements NO TICE If the inlet water contains large granules, install a water filtering device at the inlet port to prevent pipe blockage.
Page 32 ● The condensate pump is mandatory for scenarios where pipes are routed from the top or if it is required by the customer. Table 2-9 Optional Parameters of NetCol5000-A035 Item NetCol5000-...
Page 33 A025H512D2 E120E1 E120E0 0020E1 0020E0 Max Current 29 A 29 A 23 A 23 A Condensate pump Reheat Humidify Reheating 6.0 kW 6.0 kW capacity Humidifying 3.0 kg/h 3.0 kg/h capacity Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 34: Installation Guide
Adjustable wrench Phillips Flat-head Socket wrench (18 screwdriver (M4, screwdriver (M3 M6, and M8) and M4) Torque wrench Solid wrench (18 Box-end wrench Diagonal pliers (28 mm) mm and 13 mm) Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 35 85°C. Table 3-2 Translating tools Appearance, specifications, and name Manual pallet Electrical pallet Lifting rope Lever (bearing at truck truck (bearing at least least 400 kg) 400 kg) Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 36 ● Conforms to JB/T7311-2008 "engineering mechanical the anaerobic adhesive application technology specification" profession standard. Table 3-4 Connecting cable tools Appearance, specifications, and name ESD gloves Insulation gloves Wire stripper Polyvinyl chloride (PVC) insulation tape Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 37 Absolute vacuum ≤ 60 Pa. c: Dry nitrogen. d: A reducing valve needs to install to the outlet of the nitrogen steel vessel, and the reducing valve range ≥ 4.0 MPa. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 38: Material Preparations
Pipe supports Conversion purchasing adapter, rigid pipe or hose 3.1.2.1 (Optional) Refrigerant R410A CA UTION Do not use low-quality refrigerant. Huawei is not responsible for any damage caused by low-quality refrigerant. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 39 Surface (MPa) Pressur e (MPa) 1.31 2.21 0.73 1.35 2.27 0.75 1.39 2.33 0.78 2.39 0.81 1.47 2.45 0.84 1.51 2.51 0.87 1.56 2.57 1.60 2.63 0.93 1.65 0.96 1.69 2.76 Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 40: Refrigerant Oil
3.1.2.2 Refrigerant Oil The recommended refrigerant oil is Danfoss 160SZ. You can purchase it from Huawei, or purchase it by yourself after being confirmed by Huawei. NO TE If the low-temperature component is connected, additional refrigerant oil. If not, ignore the refrigerant oil.
Page 41: Humidifier Water Inlet Pipe, Pump Drainpipe, And Automatic Drainpipe
This notice is for the equipment configured with a humidifier. Table 3-9 Figure 3-3 describe how to install the humidifier water inlet pipe, pump drainpipe, and automatic drainpipe. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 42 (7) Rigid pipe: made of PP-R, C-PVC, or other materials NO TE Components inside the dash-line boxes are ports on the equipment, with the dimension of BSPP 1/2 inch and internal threads. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 43: Pipe Support
● Install a support every 1500 mm for the straight sections of pipes, and 500 mm away from each bending point in turning sections. 3.1.2.6 Cables Table 3-10 describes the cables to be connected onsite. Signal cables should be routed through a protective tube. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 44 PVC insulation tape around the cutting place. Purchase indoor unit power cables with qualified diameters (16.8–18 mm). Otherwise, the power cables will fail to be routed through the clip. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 45: Deployment Principles
1:200. The pipe tilting direction should be consistent with the hypotenuse of the right triangle. ● If the indoor unit is placed higher than or equal to the outdoor unit, inverted traps or oil traps are not needed. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 46: Unpacking
Step 1 Inspect the outer packing for signs of damage. If any damage is found, contact the shipping company immediately. Step 2 Unpack the product. Remove the straps, top cover, outer packing, cushioning materials, and then plastic film, as shown in Figure 3-8. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 47: Checking The Air Pressure
Step 3 Check the type and quantity of fittings against the packing list. If fittings are missing or inconsistent with those in the packing list, record the information and contact your local Huawei office immediately. ----End 3.3 Checking the Air Pressure Procedure Step 1 Open the rear door.
Page 48 Figure 3-10 exist. If they do not exist, contact Huawei technical support. If they exist, remove each valve bonnet and use it to press the valve plugs in turn. If air is exhausted, the system is working properly. If no air is exhausted, contact Huawei technical support.
Page 49: Removing The Transport Fixing Sheet Metals
Context The water tank is right under the evaporator and the floats (also called liquid level switches) are on the right side of the water tank, as shown in Figure 3-11. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 50 Step 2 Secure the butterfly nuts. Step 3 Connect the wiring terminals to the high float. The wiring terminals must be fixed higher than the water pan. Otherwise, water may drop into the wiring terminals. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 51: Removing The Transport Fasteners From The Compressor
Step 1 Loosen the three bolts on the compressor using a 13# solid wrench, as shown in Figure 3-14. NO TICE Do not directly take the bolts out. Step 2 Remove the transport fasteners. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 52: Install Process
Put away the removed transport fasteners so that you can reinstall them if the indoor unit is to be transported again in the container scenario. ----End 3.5 Install Process Figure 3-15 shows the process for installing an indoor unit. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 53: Installing Indoor Units
NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) 3 Installation Guide Figure 3-15 Process for installing an indoor unit 3.6 Installing Indoor Units Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 54: Installing An Indoor Unit In Securing Mode
Figure 3-16 Ports on the bottom and top panels for the codes of 52272131 and 52272132 (unit: mm) Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 55 Lower gas pipe port Φ50 mm Lower condensate pump Φ50 mm drainpipe port Lower humidifier inlet pipe port Φ50 mm Upper condensate pump Φ43 mm drainpipe port Upper humidifier inlet pipe port Φ43 mm Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 56 Figure 3-18 Base for the codes of 52272131 and 52272132 (unit: mm) (1) Shock absorbing bar: 5 mm (2) 4 - M12x60 expansion (3) 4 - M12x80 assembly screw thick, made of EPDM rubber screw mounting hole mounting hole Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 57 Step 5 Drill holes on the ground under the smart cooling product to facilitate pipe routing based on hole parameters shown in Figure 3-17. Step 6 Place the cabinet, as shown in Figure 3-20. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 58 Install the spring washer, large flat washer, and insulation tube on each bolt properly. Use the torque wrench (M20) to tighten the four bolts to a torque of 45 N m in diagonal order, as shown in Figure 3-21. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 59: Installing An Indoor Unit In Non-Securing Mode
3-22. Ensure that the leveling feet contact the floor and the castors hang in the air. NO TE Spin the castors. If the castors rotate freely, they are hanging in the air. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 60: Installing An Outdoor Unit
Procedure Step 1 Remove the valve bonnet of discharge pipe needle valve, as shown in Figure 3-23. Connect the needle valves using rubber tubes with pressure gauge. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 61: Connecting Pipelines
● The thickness of heat insulation cottons should not be less than 13 mm. ● When purchasing water pipes, ensure that the water pipe with thermal insulation foam warped can go through the ports on the bottom and top boards. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 62: Connecting Refrigerant Pipes
● When the refrigerant pipe is straight, add a support every 1500 mm. Figure 3-24 Routing the refrigerant pipe NO TE Onsite personnel prepare the required materials and install the supports. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 63 Pipe Length (m) Recommended Diameter Recommended Diameter for Discharge Pipes (inch) for Liquid Pipes (inch) L ≤ 60 Note: If the pipe is longer than 60 m, contact Huawei technical support. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 64 Figure 3-25 Routing pipes from the bottom Step 2 Take two 90° bent copper pipes among the fittings. Step 3 Weld the two pipes with the bent ends facing downwards, as shown in Figure 3-26. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 65 Figure 3-27 Soldering ----End Example CA UTION When routing pipes from the top, do not route the refrigerant pipe over servers, avoiding the impact brought by refrigerant leakage on the servers. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 66: Connecting Water Pipes
Otherwise, you are not required to connect the self- drainpipe. Condensate pump drainpipe and self-drainpipe should not be connected together to avoid water in the self-drainpipe flowing back to the pump. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 68 The top and bottom pipe routing methods are the same with that of self- drainpipes. Figure 3-30 Figure 3-31 respectively show top and bottom pipe routing. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 69 3 Installation Guide Figure 3-30 Routing pipes from the top (1) Humidifier water inlet (2) Condensate pump drainpipe Figure 3-31 Routing pipes from the bottom (1) Humidifier water inlet (2) Condensate pump drainpipe Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 70: Leak Checking
Step 1 Connect the pressure gauge, hose, reducing valve, and the nitrogen to the device. The pressure gauge valves and reducing valve should be closed. ● If low-temperature component is not configured, charge nitrogen from (1) and (2), as shown in Figure 3-32. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 71 (4) High pressure valve (5) Reducing valve (6) Nitrogen steel vessel ● If low-temperature component is configured and installed, charge nitrogen from (1), (2), and (3), as shown in Figure 3-33. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 72 Step 3 If the pressure decreases, find out and repair the leakage point by using soap bubbles or a halogen leak detector. If the pressure is preserved properly, exhaust nitrogen from the three positions shown in Figure 3-23. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 73: Installing Cabinet Accessories
Step 4 Secure the enclosure frame to the front door using eight M5 screws, as shown in Figure 3-34. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 74 Step 5 (Optional; only for units whose BOM numbers are 52272131 or 52272132) Secure the top sealing plate of the enclosure frame to the enclosure frame using four M5 tapping screws. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 75: Optional) Installing The Top Frame
Bottom Pipe Routing Step 1 Remove the two M5x10 tapping screws that secure the front door sealing plate on the top of the cabinet, as shown by (1) in Figure 3-36. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 76 3-37. Step 3 Place the top frame, with the side with FRONT facing upwards and the end with FRONT facing the cabinet front door, as shown by (4) in Figure 3-37. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 77 Install two M5x10 tapping screws at the front of the top frame to set up equipotential bonding between the cabinet and the top frame, as shown by (3) in Figure 3-38. Figure 3-38 Securing the top frame ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 78: Connecting Cables
L1, L2, L3, and PE bar connect to the corresponding power ports. Select the cable model based on the maximum running current of the indoor unit, which shows in 2.4 Technical Specifications. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 79: Installing The Voltage Jumper
Select one jumper that matches the local power voltage and connect the jumper to 11 in A Electrical Ports of an Indoor Unit. Figure 3-40 Voltage jumpers 3.11.4 Connecting the Signal Cables Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 80 When DO associated output. Connection to an common alarm is set to Critical outdoor device is alarm 1 ALM, the smart cooling forbidden. product issues an alarm if a major alarm occurs. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 81 The water sensor is The Huawei product is X2.10 sensor port connected to terminals X2.9 recommended. and X2.10. After the water sensor is installed, the NetCol5000-A generates an alarm when water leak occurs. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 82: Connecting The Outdoor Unit On/Off Signal Cable
Step 3 Connect control ports X2.5 and X2.6 of an indoor unit in Figure 3-41 to port 1 and port 2 of the outdoor unit respectively, as shown in Figure 3-42. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 83: Connecting Water Sensor
(X2.9 and X2.10 positions) of the electric control box, as shown in Figure 3-41. Step 3 Secure the water sensor cable to the cabinet with cable ties. Figure 3-43 shows the water sensor installation position. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 84: Teamwork Networking And Monitoring
Teamwork communication ports 1 and 2 are used to enable the teamwork networking communication over CAN and EMS monitoring communication over RS485. Figure 3-44 shows the communications cable ports on the main control board. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 85 2 of the second unit to the teamwork communication port 1 of the third unit. All units that require teamwork can be connected in this way, as shown in Figure 3-46. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 86 Figure 3-48 defines the pins of a Y-split cable. Figure 3-49 shows the Y-split cable connection for teamwork control. Figure 3-47 Y-split cable Figure 3-48 Pin definition of a Y-split cable Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 87 ● You need to set only the seventh toggle switch based on site requirements and leave the rest of toggle switches in their default status listed in Table 3-16. Table 3-16 Operation description of the toggle switches Toggle Default Operation Switch Value Remaining "OFF". Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 88: Installing A Humidity And Temperature Sensor Outside The Cabinet
When connecting external humidity and temperature sensors, connect the sensors in series and make sure that the OUT port on the previous sensor connects to the IN port on the following Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 89 The sensors can be secured to the cabinet using cable ties or two M4 screws through sheet metal holes. Figure 3-50 Position and cable route of an internal humidity and temperature sensor Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 90 DIP switch on a humidity and temperature sensor. Figure 3-52 DIP switch You need to set the DIP switch to change the communications address of sensors. Table 3-17 describes the operation description. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 91 3 of the cold aisle Temperature aisle and humidity 1 at the hot aisle Temperature and humidity 2 at the hot aisle Temperature and humidity 3 at the hot aisle Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 92: Connecting Monitoring Cable From Fe Port
The electric heater probe is secured. □Passed. □Failed. EC fan The fan is secured. □Passed. □Failed. The fan has no foreign matter inside. □Passed. □Failed. The fan blades rotate properly. □Passed. □Failed. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 93 Ports are connected correctly. The pipelines have oil trap, □Passed. inverted traps, gradients (of refrigerant pipes), and bases. □Failed. The hose clamp and cable ties of the condensate water pipes □Passed. are secured. □Failed. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 94 The rated value of the general circuit breaker meets the □Passed. highest current requirement. □Failed. All cables, connectors, and screws are secured. □Passed. □Failed. Devices are properly grounded. □Passed. □Failed. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 95: Acc Introduction
Figure 4-1 Location of the indicator (1) Indicator (2) LCD Table 4-1 Indicator and buzzer status description Alarm Status Indicators Buzzer The device is operating Green Silent properly, or a warning alarm occurs. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 96: Controller Ports
You can tap the menu items, buttons, or icons on the screen to enter related screens or perform operations, such as Running, Alarms and Settings. The controller main screen is shown in Figure 4-3. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 98: Menu Hierarchy
Figure 4-4 Hierarchy of the controller menu The functions of the menus are described as follows: ● Common Functions Indicates the component status, system parameters, and historical alarms of the smart cooling product. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 99: Power-On Commissioning
For non-initial power-on, the LCD automatically enters the home screen as shown in Figure 4-3. Procedure Step 1 Set the language and tap Next, as shown by (1) in Figure 4-5. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 100: Initial Configuration
To enhance security, before a user attempts to perform setting and maintenance operations, the user needs to enter the user name and password for right authentication. Figure 4-6 shows the setting login screen for an example. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 101: Start And Shutdown
To prevent misoperation, log in as Operator users first before modifying parameters. Obtain permission from Huawei before modifying any parameter that you are not allowed to modify, otherwise, Huawei will not be liable for any consequences of the modification. ●...
Page 102: Setting Temperature And Humidity Values
1, 2, and 3, log in as the Admin or Engineer user. To set other parameters, log in as the Admin, Engineer, or Operator user. Procedure Step 1 On the home screen, choose Settings > System Settings > T/H Sensor. Figure is displayed. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 103 ● Hot-aisle: For a hot aisle, choose Hot-aisle to control the temperature and humidity of the aisle. The temperature and humidity values come from the humidity and temperature sensor in the aisle. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 104 Enable. aisle. Hot aisle Sets the sensors in Enable the corresponding humidity and sensor 1, 2, 3 hot aisles to temperature sensor installed in the hot Enable. aisle. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 105: Setting Communications Parameters (Ip Address Settings)
If Connection mode is set to Server, one smart cooling product can be accessed by a maximum of two element management system (EMS) clients at the same time. If Connection mode is set to Client, a smart cooling Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 106 EMS communicates with the smart cooling product through this address, and the addresses of two smart cooling products connected to the same EMS must be unique. This parameter is configurable when Protocol is set to Modbus RTU. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 107: Setting Teamwork Control Parameters
● The figures and parameters in this section are for reference only. Set actually parameter values as required. ● To change alarm settings, log in as the Admin or Engineer user. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 110 Large ring Proportion coefficient in You are not 0.10 cooling L1/L2 linkage PID control. recommended to change capacity P the value. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 111 Target temperature 24.0°C linkage L1/L2 linkage. controlled in the micro- temperatu module. The parameter can only be modified on the ECC WebUI and cannot be modified on the smart cooling product screen. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 112 01, 02, 03 Indicates the device address. 01 is the master one and the rest are all slave ones. NOTE If the master one offline, the teamwork networking failed. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 113 Dark gray indicates that the device is off-line, as shown in ----End Example Figure 4-13 shows how to configure 16 smart cooling products as two CAN teamwork groups, each group containing eight smart cooling products. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 114 If no, check the cable connection and the settings of teamwork control parameters. Check whether the number of online devices on the topology is the same as the actual device number. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 115: Optional) Setting Alarm Parameters
Active alarms are displayed on the LCD and the system performs related protection actions. – Disallow Alarms are not generated and no protection actions are performed. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 116 Figure 4-14 Setting alarm parameter 1 Step 2 Tap Delay following Supply-air HT. Step 3 Set the value to 5 and tap , as shown in Figure 4-15. Figure 4-15 Setting alarm parameter 2 ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 117: Commissioning Guide
● To exit the diagnostic mode, tap on the status bar. ● The system automatically exits diagnostic mode when it reaches the maximum diagnostic mode duration. ----End 4.5.3.2 Commissioning Smart Cooling Product Components Context Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 118: Maintenance Guide
Step 2 Tap On for Electric heater, as shown in Figure 4-17. Figure 4-17 Starting up the electric heater After the electric heater is started, the Off following the Electric heater turns into ----End 4.6 Maintenance Guide Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 119: Querying Parameters
(humidity set point - 50%) to (humidity set point + 50%) at most. Specific humidity fluctuation range displayed varies according to different models of smart cooling products. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 120: Querying Alarms
ID to view causes of the alarm and methods used to clear the alarm. Click each alarm to open the Details page, which contains Alarm Name, Severity, Location, Cause ID, SN, Possible Causes, and Procedure for the alarm, as shown Figure 4-20. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 121 Alarms > Query Hist. Alarms on the home screen. Figure 4-21 displayed. Figure 4-21 Querying historical alarms NO TE Historical alarms are displayed in chronological order. The latest cleared alarm is displayed in the uppermost row. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 122: Querying Logs
Figure 4-22 Query logs screen ----End 4.6.1.4 Querying Device Runtime Procedure Step 1 On the home screen, choose Maint > Performance Maint. Figure 4-23 displayed. Figure 4-23 Performance maint screen ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 123: Querying Component Status
Running > Device Details > Compressor on the home screen to query the status of the compressor and solenoid valve, as shown in Figure 4-25. Figure 4-25 Compressor running status Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 124: Querying System Parameters
When viewing system parameters through Device Details (using the compressor as an example), choose Running > Device Details > Compressor on the home screen to view the compressor parameters, as shown in Figure 4-27. Figure 4-27 Compressor parameters Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 125: Querying Version Details
To delete historical alarms, log in as the Admin user. NO TICE Exercise caution when deleting all historical alarms. Because this operation may cause clearance of all historical alarms and affects device maintenance. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 126: Deleting Logs
Step 1 On the home screen, choose Maint > Log Maint > Delete Logs > Yes to delete all the logs. NO TE After logs are deleted, the log deletion operation is recorded in the first log that is displayed. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 127: Exporting Data
Procedure Step 1 Tap Maint > USB Operations > Export Act. Alarms to enter the Select Path screen, as shown in Figure 4-30. Figure 4-30 Select path Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 128 Figure 4-31 Warning dialog box Figure 4-32 Processing info Step 3 After the data is successfully exported, Figure 4-33 is displayed. Click OK. Figure 4-33 Screen showing that data export has succeeded Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 129: Clearing The 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 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 131 After 15 seconds, a dialog box indicating Are you sure you want to calibrate the screen? If you do not click Yes or No, calibration will start automatically 10 seconds later. is displayed, as shown in Figure 4-38. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 132: Faq
Enter the User Settings screen to set the Language, Date, or Time. You can also set Time zone, Password, LCD contrast, LCD saturation, and LCD brightness on the screen. ● To set the preceding parameters, log in as the Admin, Engineer, or Operator user. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 133: How To Change A Password
Figure 4-40 User settings screen Step 2 Tap Password to enter the password changing screen, as shown in Figure 4-41. The password consists of six digits and not supports letters or special characters. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 134: Restoring Factory Settings
4.7.4 Restoring Factory Settings Context If you have forgotten the password or need to delete system information, you can restore factory settings using DIP switch S2 on the main control board. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 135 Step 4 Connect the power supply of the device. Step 5 After the restart completes, the LCD displays a dialog box asking you to confirm the operation of restoring factory settings. To continue restoring factory settings, Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 136: How To Troubleshoot The Fault When The System Is In Upgrade Mode
Step 2 If The e-label board is not connected or the e-label is incorrect. Please connect or replace the e-label board. is displayed, power off the system, reconnect or replace the E-label board, and then power on the system. Step 3 If the fault persists, contact Huawei technical support. ----End Issue 17 (2020-10-22)
Page 137: How To Fast Shut Down An Smart Cooling Product
Figure 4-43 Manually clearing the alarm Step 2 Tap Clear, a dialog box for confirming clearance is displayed. Step 3 Tap Yes, the Command triggered successfully. message is displayed. Step 4 Tap OK. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 138: How To Enable A Humidity And Temperature Sensor
4.7.9 How to Check Teamwork Control Information Procedure Step 1 On the home screen, choose > . The teamwork control information is displayed, as shown in Figure 4-45. Figure 4-45 Teamwork control information screen Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 139: Which Parameters Are Restored To Default Values After Default Settings Are Operated
After default settings are restored, all communication addresses are changed to 1 and the communication between all devices and the EMS is disconnected. The communication addresses must be reset to recover the communication. 4.7.11 How to Change the SSH Access Password Context Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 140 Step 2 Specify User name and Password. The preset user name and password are enspire and Changeme respectively, as shown in Figure 4-46. Figure 4-46 Entering the user name and password Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 141 Figure 4-47 Switching to the root user Step 4 Enter passwd (the password change command) to change the password. In the displayed window, enter a new password and confirm it, as shown in Figure 4-48. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 142: Rectifying Faults Of The E-Label Identification Board
● If the information shown in Figure 4-49 is displayed on the controller LCD, the smart cooling product can run properly. To remove this tip, perform Step Figure 4-49 Message 1 Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 143 ● If yes, continue with Step Step 4 Check whether cables are properly connected. ● If yes, contact Huawei technical support to replace the E-label identification board. ● If no, reconnect or replace cables and perform Step Step 5 Reconnect the power supply of the smart cooling product.
Page 144: Importing A Certificate And Key
Step 3 Select the CA certificate file to be imported. Step 4 Upload local certificate file and key file in turn in the same way. Step 5 Enter Key password and Confirm key password. Step 6 Click Submit. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 145: Powering Off And Maintaining A Smart Cooling Product In Icooling Linkage Mode
● The master unit inside a micro module reports the "iCooling linkage A/C abnormal" alarm, which triggers the "L0/L1 linkage abnormal" alarm in the NMS. ● The master units inside other micro modules report the "iCooling linkage condition not met" alarm. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 146: Power-On Commissioning
Calculate the total one-way length of pipes connecting the indoor unit and the outdoor unit by referring to Table 3-12. L is short for the length. The refrigerant is R410A. Table 5-1 Table 5-2 show the refrigerant to be charged. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 147 = 14 + 0.14 x = 19 + 0.14 charge (kg) (L-10) x (L-10) (L-10) x (L-10) = Standard refrigerant charge + Additional refrigerant charge Table 5-2 Refrigerant for NetCol5000-A035 Total Item NetCol500- NetCol500- NetCol500- NetCol500- One- (including Lengt low- temperatur component L ≤...
Page 148: Optional) Charging In Refrigerant Oil
5.2.1 Calculation about the Charged the Refrigerant and Refrigerant Oil. Procedure Step 1 Connect the refrigerant oil bucket, pressure gauge, and vacuum pump to the device, as shown in Figure 5-1. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 149: Vacuumizing
● Before vacuumizing the cooling system, ensure that all connectors are secured. ● System high pressure may occur if the cooling system is not vacuumized or is not thoroughly vacummized. Ensure that the cooling system is thoroughly vacummized before refrigerant is charged. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 150 If the low-temperature component is connected, vacuumize the cooling system from the three positions (liquid pipe needle valve, low-pressure needle valve, and discharge pipe needle valve) at the same time, as shown in Figure 5-3. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 151 Step 4 Vacuumize the cooling system for at least 80 minutes after checking that the cooling system does not leak. The pressure displayed on the vacuum pump should be less than or equal to 60 Pa (absolute pressure). When the pressure stops Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 152: Partially Charging Refrigerant
NO TICE If the R410A refrigerant is provided by Huawei, put the refrigerant steel vessel upside down when charging in the refrigerant. If the refrigerant is not provided by Huawei, check with the refrigerant provider whether the steel vessel has a siphon.
Page 153: Commissioning Preparations
After the injection is completed, tighten the needle valve bonnet, and check whether the needle valve leaks by applying soap bubbles to the valve vent or using a halogen leak detector. If the valve leaks, contact Huawei technical support. ----End 5.3 Commissioning Preparations...
Page 154: Power-On
Ensure that the control voltage is within the range of 24 V AC (tolerance ±10%). If the voltage is not within the range, check whether the voltage jumper matches the mains, or whether the current input voltage meets normal voltage requirements. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 155: Initial Configuration
Engineer, Operator, and Guest. The preset passwords are 000001 for Admin, Engineer, and Operator and no password is needed for Guest. You need to enter Diagnostic Mode as Admin Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 156 QF8 are on. Ensure that the crankcase heat tape has been preheated for over 12 hours before starting the compressor. Otherwise, the compressor will be damaged. Huawei will not be liable for any consequences.
Page 157 Water supply is smooth and the water pipe is free from leakage. After 10 minutes, the water inside the humidifier cylinder is with bubbles or boils. (The water boiling time is relevant Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 158 You can rectify the fault by referring to the outdoor unit user manual. ● Whether the signal cable for the indoor and outdoor units is properly connected. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 159 Put the air deflector upside down and rotate it to the opposite direction of the slot, as shown by 3 in Figure 5-8. Reinstall the air deflector using a Phillips screwdriver. Figure 5-8 Adjusting the air deflector Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 160: Checking After Commissioning
Step 2 Switch off the main circuit breaker QF1. Step 3 If the smart cooling product needs to be maintained in power-off mode or long- term power-off, switch off the smart cooling product external circuit breaker. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 161: System Operation And Maintenance
NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) 6 System Operation and Maintenance System Operation and Maintenance 6.1 Maintenance Components Figure 6-1 shows the positions of the components to be maintained. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 162: Routine Maintenance
6.2.1 Routine Maintenance Overview Definition Routine maintenance refers to preventive and periodic check and maintenance carried out to promptly identify and handle alarms and potential faults during the normal operation of the equipment. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 163: Maintenance Tools
Pay attention to the safety symbols on the equipment and all safety instructions in this document. The safety precautions given in this document do not cover all safety precautions. Huawei will not be liable for any consequence caused by violation of the safety operation regulations and design, production, and usage standards.
Page 164: Data Record
Rated power voltage Measured power voltage Choose Running > Device Details > Discharge temp Compressor. Discharge pressure Suction pressure Tap Teamwork. Teamwork function Choose Teamwork > Teamwork Total number of Settings. units Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 165: Monthly Maintenance
Number of active units 6.2.4 Monthly Maintenance Table 6-3 lists monthly maintenance items for the indoor unit. If parts replacement is required, contact Huawei technical support to obtain spare parts. Table 6-3 Monthly maintenance checklist Compon Item Troubleshooting Air filter The air filter surface is free of Replace the air filter.
Page 166 Tighten the screws using a 10# are not loose or distorted. socket wrench. Electric The electric heater surface is Replace the electric heater by heater not eroded, dirtied, or blocked. referring to 6.5.8 Replacing Electric Heater. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 167: Quarterly Maintenance
6-2, are free from corrosion, foreign matter, and connection in between. Figure 6-2 Water sensor detection terminals (1) Detection terminals 6.2.5 Quarterly Maintenance Table 6-4 lists quarterly maintenance items for the indoor unit. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 168 Compon Item (on the Basis of Troubleshooting Monthly Maintenance) Monitori Export smart cooling product Rectify the fault or contact Huawei logs, alarms, temperatures, technical support. humidity, the operating status of the compressor, fan, electric heater, electric humidifier, and water pump, and time from the monitoring system.
Page 169: Yearly Maintenance
Calculate the total cooling capacity and total server load of running indoor units. If the total load exceeds 80% of the total cooling capacity of the smart cooling product, Huawei recommends increasing the number of smart cooling products. Table 6-5 Yearly maintenance checklist...
Page 170: Alarm Reference
T/H sensor, T/H sensor. temp genera which leads to a 2. Maintain or invali ted. detection fault. replace the T/H 2. The T/H sensor sensor. is faulty. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 171 1. Check the n-air alarm temp sensor are cables to the loose or temp sensor. humi genera damaged. 2. Maintain or ted. 2. The temp sensor replace the invali is faulty. temp sensor. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 172 7. The solenoid 7. Maintain or valve is faulty. replace the solenoid coil or 8. The refrigerant is the solenoid overfilled. valve. 8. Decrease certain amount of refrigerant. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 173 6. The indoor fans replace the low are faulty. press switch. 5. Maintain or replace the dryer filter. 6. Maintain or replace the expansion valve. 7. Maintain or replace the indoor fans. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 174 The a012 comp Reference to the alarm discharge HT alarm solutions for the disch is generated a012 comp arge genera frequently. discharge HT ted, alarm. lock compr essor shuts down forcibl Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 175 1. Maintain or difier hours alarm runtime of the replace the excee humidifier exceeds humidifier. genera the alarm thres. 2. Tap Maint > runti ted. Performance Maint to clear the humidifier total runtime. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 176 5. Check the position. cables to the 5. The cables to the differential differential press press switch. switch are loose or damaged. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 177 3. Correctly set the system possibly it is toggle switch. shuts incorrectly down. connected. 3. If a toggle switch is used, possibly it is incorrectly set. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 178 3. Correctly set the system possibly it is toggle switch. shuts incorrectly down. connected. 3. If a toggle switch is used, possibly it is incorrectly set. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 180 All the T/H sensors Enable the T/H point alarm of the control point sensors of the sens are disabled. control point or genera change the control disab ted, point. system shuts down. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 181 1. Water exists on 1. Check and clean wate alarm the floor. the water. 2. The water sensor 2. Maintain or overf genera is faulty. replace the ted, water sensor. system shuts down. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 183 5. Calibrate or 4. The supply-air replace the HT alarm thres is abnormal inappropriate. sensors. 5. The temp displayed is different from the actual temp. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 184 T/H essor different from sensors. increas the actual temp. 5. Add more smart 5. The load is high cooling product or the units. refrigeration capacity is insufficient. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 186 6. Maintain or 6. The solenoid replace the valve is faulty. solenoid coil or the solenoid 7. The refrigerant is valve. overfilled. 7. Decrease certain amount of refrigerant. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 187 1. Check the alarm press sensor are cables to the pres loose or press sensor. sens genera damaged. 2. Replace the ted. 2. The press sensor press sensor. fault is faulty. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 188 0.25 The a060 comp LP Refer to the alarm alarm is generated solutions for the sucti frequently. a060 comp LP genera alarm. ted, lock compr essor locked. start locked compr essor. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 189 2. The comp driver 2. Maintain or overv ted. is faulty. replace the comp driver. 3. The comp is faulty. 3. Maintain or replace the comp. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 190 5. The refrigerant is the solenoid overfilled. valve. 6. The comp is 5. Decrease faulty. certain amount of refrigerant. 6. Maintain or replace the comp. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 191 2. Dirt exists in the 2. Clean the air ted. air vents of the vents of the over fans in the comp fans in the heat driver. comp driver. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 192 5. The refrigerant is the solenoid overfilled. valve. 6. The comp is 5. Decrease faulty. certain amount of refrigerant. 6. Maintain or replace the comp. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 193 2 loose or 3. Maintain or start fault damaged. replace the 3. The indoor fan is indoor fan. compr faulty. essor, humidif ier, electric heater. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 194 5. Clear the cond pump is internal configured. drainpipe. 5. The internal drainpipe or the pipeline is blocked if no cond pump is configured. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 195 2. Maintain or ted, alarm thres. replace the 2. The voltage voltage jumper. jumper system connected to the shuts smart cooling down. product unit is incorrect. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 196 2. The loop A fuse disco genera loop A. is loose, aged, or nnect ted, disconnected. 2. Maintain or replace the fuse. system shuts down. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 197 Maintain or hours alarm runtime of the cond replace the cond pump exceeds the pump. Tap Maint excee genera alarm thres. > Performance ted. Maint to clear the runti accumulated runtime. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 198 Critic The comp driver is Maintain or alarm faulty for multiple replace the comp drive times, or the faulty driver. short genera lasts for a long perio ted. time. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 199 1. Check the alarm power is cut off. power supply outa cables. 2. The dry contact genera is faulty. 2. Check the dry ted, contact. heatin g and humidif ication operati prohibi ted. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 200 2. Maintain or ted. detection fault. replace the T/H invali 2. The T/H sensor sensor. is faulty. Cold- aisle humi invali Cold- aisle humi invali Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 201 2. Maintain or invali ted. detection fault. replace the T/H 2. The T/H sensor sensor. Hot- is faulty. aisle temp invali Hot- aisle temp invali Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 202 2. Maintain or ted. detection fault. replace the T/H invali 2. The T/H sensor sensor. is faulty. Hot- aisle humi invali Hot- aisle humi invali Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 204 Settings are 2. Modify the incorrect. master unit's Total number 3. Slave unit of units dropped. according the actual number. 3. Check slave unit's Teamwork Wire connection and Runing Condition. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 205 6. Check that the configuration of the monitoring host (ECC) is correct. 7. Set total number of units on the master unit to the actual number of units. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 206 5. Maintain or monitoring host. replace the smart socket. 6. Maintain or replace the cables between the smart cooling product and the smart socket or monitoring host. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 207 6. Maintain or 8. The smart socket replace the is faulty. control board. 7. Maintain or replace the ETH converter. 8. Maintain or replace the smart socket. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 208: Troubleshooting
6. Maintain or faulty. replace the 8. The smart socket control board. is faulty. 7. Maintain or replace the ETH converter. 8. Maintain or replace the smart socket. 6.4 Troubleshooting Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 209 Air exists in the cooling Exhaust air, and examine system. and repair the pipeline. Heat dissipation is poor Clean the condenser fins. because of blockages in the condenser. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 210 An indoor fan fails to Either the main circuit Check the circuit breaker start. breaker or the indoor fan status. circuit breaker is not switched on. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 214: Parts Replacement
3. The humidifier controller is faulty. 3. Replace the humidifier controller. NO TE If the fault does not restore, contact Huawei technical support. 6.5 Parts Replacement After replacing any part, verify that the new part works properly. 6.5.1 Replacing Filters Prerequisites ●...
Page 215: Replacing A Indoor Fan
● Install a new air filter based on the instruction on the label. ● Correctly connect the differential pressure tube. Step 5 Tap Maint > Performance Maint to clear the air filter total runtime. ----End 6.5.2 Replacing a Indoor Fan Prerequisites Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 216 Figure 6-4. NO TE At least two personnel are needed. One removes the bolts and the other rises the fan by hand. Figure 6-4 Removing bolts that fasten the indoor fan Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 217: Replacing A Compressor
45# and 50# torque wrenches, 13# and 30# solid wrenches or socket wrenches, new compressor, dryer filter, refrigerant reclaiming devices, refrigerant charging devices, R410A refrigerant. ● Preparations: Switch off the outside main power input. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 218 Step 7 Use a 13# solid wrench or socket wrench to remove the four bolts from the compressor base and remove the base and compressor, as shown in Figure 6-6. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 219 Step 8 Use a 13# solid wrench or socket wrench to remove the four bolts to separate the compressor and its base, as shown in Figure 6-7. Figure 6-7 Removing the compressor Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 220: Replacing The High Pressure Switch
The procedure for replacing a high or low pressure sensor is similar to that for replacing the high pressure switch. Procedure Step 1 On the controller home screen, tap Shutdown, and turn off the smart cooling product switch in the upstream PDC. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 221 Figure 6-9 Removing a high pressure switch (1) Pipe nut (2) Adjustable nut WARNING Exercise caution when removing the high pressure switch because a small amount of refrigerant will be sprayed when you remove the switch. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 222: Replacing Compressor Drive
Step 8 Power on the device and tap Startup on the home screen. Ensure that the smart cooling product is running normally without any alarms. ----End 6.5.5 Replacing Compressor Drive Two compressor drives, named "Huawei" and "Danfoss", are shown in Figure 6-10. Figure 6-10 Compressor drives 6.5.5.1 Replacing a Huawei Compressor Drive...
Page 223 Figure 6-12 Removing the drive top cover and the baffle plate of the upper chassis Remove the four screws for securing the drive top cover, as shown by 1 in Figure 6-12. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 224 (1) Power cables on the output side (2) Power cables on the input side Step 6 Remove the drive ground cables on the input and output sides using a Phillips screwdriver, as shown in Figure 6-14. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 225 Step 7 Remove the screws at the four angles of the drive using a Phillips screwdriver and move the drive out, as shown in Figure 6-15. Figure 6-15 Removing the drive Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 226: Replacing A Danfoss Compressor Drive
Step 4 Undo the buckle at the groove of the lower baffle plate (shown by 1 in Figure 6-16) using a flat-head screwdriver. Remove the baffle plate and control communications terminals (terminals with jumpers 12–27 and 12–37 respectively). Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 227 Step 9 Power on the unit and tap Maint > Diagnostic Mode > Enter to set a speed of the compressor. Make sure the compressor work properly. Exit the diagnostic mode. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 228: Replacing Condensate Pump
Figure 6-18 Loosening the water pipe adapter Step 4 Remove the screws that fasten the pump sheet metals and drag the pump and sheet metals out of the cabinet, as shown in Figure 6-19. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 229 When removing the hose, prepare a container for storing condensate because some condensate may be drained. Step 6 Open the sheet metals of the pump to drag the pump out. Step 7 Install a new pump in an inverse order. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 230: Replacing Humidifier Cylinder
Step 3 Loosen the hose clamp above the humidifier cylinder using the flat-head screwdriver, and remove the vapor hose from the humidifier cylinder, as shown by (1) in Figure 6-21. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 231 Step 8 Power on the humidifier, choose Maint > Diagnostic mode on the main menu, and enter 100%. The water is injected to the humidifier. Check whether the humidifier works properly. If yes, exit the diagnostic mode. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 232: Replacing Electric Heater
Step 5 Install a new electric heater in an inverse order. Step 6 Power on the unit and tap Maint > Diagnostic Mode > Enter to open the electric heater. Make sure they work properly. Exit the Diagnostic Mode. Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 233 NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) 6 System Operation and Maintenance Step 7 Tap Maint > Performance Maint to clear the electric heater total runtime. ----End Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 234: A Electrical Ports Of An Indoor Unit
Electrical Ports of an Indoor Unit Figure A-1 Components and external ports of the electrical control box External ports of the electric control box Description Differential pressure switch Electronic label Main control board Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 235 (14) J73 teamwork communications port 2 on the main control board (15) J73 teamwork communications port 1 on the main control board (16) Manual water drain switch for the humidifier cylinder Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 236: B General Layout
(10) Liquid storage (11) Dry filter (12) Sight glass liquid pipe tank (13) Solenoid valve (14) Thermostatic (15) Low-pressure (16) Distributor expansion valve needle valve (17) Evaporator (18) Indoor fan (19) Suction pipe Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 237 ● In Figure B-1, the pipes in real line are installed by Huawei before delivery; the pipes in dotted line are to be routed onsite by technical personnel. ● The pipe fittings provided by Huawei include the oil trap (component 6) and inverted trap (component 8).
Page 238: C Acronyms And Abbreviations
Computational Fluid Dynamics Controller Area Network Direct Current Electronic Commutation Element Management System liquid crystal display local user interface Power Usage Effectiveness RCCB Residual Current Circuit Breaker Thin Film Transistor Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 239 NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) C Acronyms and Abbreviations Universal Series Bus Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 240: D Electric Diagram
NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) D Electric Diagram Electric Diagram Figure D-1 Electric diagram Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 241: E Main Control Board Diagram
NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) E Main Control Board Diagram Main Control Board Diagram Figure E-1 Main control board diagram Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 242: F Humidifier Control Diagram
NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) F Humidifier Control Diagram Humidifier Control Diagram Figure F-1 Humidifier control diagram Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 243: G Controller Menu Structure
NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) G Controller Menu Structure Controller Menu Structure Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.
Page 244 NetCol5000-A(025, 035) In-row Air Cooled Smart Cooling Product User Manual (600 mm Width) G Controller Menu Structure Figure G-1 Controller menu structure Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd.

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Netcol5000-a025

Huawei NetCol5000-A035 User Manual

About this Document

1 Safety Information

2 Product Description

3 Installation Guide

4 ACC Introduction

5 Power-On Commissioning

6 System Operation and Maintenance

A Electrical Ports of an Indoor Unit

B General Layout

C Acronyms and Abbreviations

D Electric Diagram

E Main Control Board Diagram

F Humidifier Control Diagram

G Controller Menu Structure

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