Huawei NetCol8000-C070 User Manual Download Page 146

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6.1.2 Semi-annual Maintenance Items

Table 6-2 Semi-annual Maintenance Items

Item

Method (Monthly

Maintenance)

Troubleshooting

Monitoring

Export smart cooling

product logs and alarms

as well as the operating

status and time of the

fan, electric heater, and

wet film humidifier from

the monitoring system.

View the historical

alarms generated in this

quarter and select the

most common five ones.

(If no monitoring system

is available, skip this

item.)

Locate the cause or contact technical

support.

Electric

heater

Check that the electric

heater is fixed reliably.

Retighten the electric heater and its

switch.

Check that the electric

heater surfaces are not

eroded.

Replace the electric heater.

Wet film

humidifier

Check that the valve on

the water inlet pipe for

the wet film humidifier is

open.
When the NetCol8000-C

is on, choose Maint >

Diagnostic Mode >

Enter to start the wet

film humidifier.

If no water is supplied, check the

cable connection or replace the

water inlet solenoid valve.

Cables

Check that cables are not

aged.

Replace cables if necessary.

Differential

pressure

switch

Check that the pressure

inlet tube is not blocked

or over-bent.

Reinstall the pressure inlet tube.

Check that cables to the

differential pressure

switch are securely

connected.

Reconnect the cables.

Water

leakage

sensor

Check that the water

leakage sensor is securely

installed.

Retighten the cables.

NetCol8000-C(070, 130, 190) In-room Chilled Water

Smart Cooling Product

User Manual

6 Maintenance

Issue 07 (2021-12-30)

136

Summary of Contents for NetCol8000-C070

Page 1: ...NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual Issue 07 Date 2021 12 30 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...cribed 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 without warranties guarantees or representations of any kind either express or implied The information in this document is subject to change without notice Every effort has been made in the prep...

Page 3: ...ol8000 C070U as an example The operations for the NetCol8000 C130U and NetCol8000 C190U are similar to those of the NetCol8000 C070U The component positions and installation and replacement methods are the same for the three models of downflow units This document uses the NetCol8000 C130D as an example The operations for the NetCol8000 C070D and NetCol8000 C190D are similar to those of the NetCol8...

Page 4: ...pated results NOTICE is used to address practices not related to personal injury Supplements the important information in the main text NOTE is used to address information not related to personal injury equipment damage and environment deterioration Change History Issue Release Date Change Description 07 2021 12 30 Added 3 6 7 Optional Installing a Motorized Damper Only for a Downflow Unit Updated...

Page 5: ...d 6 4 1 Replacing a Fan Updated C Base Dimensions 04 2021 01 30 Updated 7 FAQ 03 2020 12 10 Updated 2 1 Model Number Description Updated 3 6 4 Optional Installing Teamwork and Monitoring Communications Cables Updated 7 FAQ 02 2020 08 30 Updated the description about installing caps and downflow fans 01 2020 03 03 This is the first official release NetCol8000 C 070 130 190 In room Chilled Water Sma...

Page 6: ...ule 27 2 4 Monitoring System 29 3 Installation 30 3 1 Installation Requirements 30 3 1 1 Upflow Layout Requirements 30 3 1 2 Downflow Layout Requirements 31 3 1 3 Pipe Layout Requirements 31 3 1 4 Installation Requirements 34 3 2 Installation Preparations 35 3 2 1 Tools 35 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 Wat...

Page 7: ...le 68 3 6 4 2 Independent Networking Scenario 69 3 6 4 2 1 CAN Teamwork RS485 Monitoring 69 3 6 4 2 2 CAN Teamwork FE Monitoring 70 3 6 5 Optional Installing Cables for the External Water Valve Actuator 71 3 6 6 Optional Installing a Gravity Damper Only for an Upflow Unit 73 3 6 7 Optional Installing a Motorized Damper Only for a Downflow Unit 73 3 6 8 Optional Installing T H Sensors Outside a Cab...

Page 8: ...ance 135 6 1 2 Semi annual Maintenance Items 136 6 1 3 Annual Maintenance 138 6 2 Alarm Reference 138 6 3 Troubleshooting 159 6 4 Parts Replacement 162 6 4 1 Replacing a Fan 163 6 4 1 1 Replacing a Fan Upflow 163 6 4 1 2 Replacing a Fan Downflow 168 6 4 2 Replacing an Air Filter 171 6 4 2 1 Replacing an Air Filter Upflow 171 6 4 2 2 Replacing an Air Filter Downflow 172 6 4 3 Replacing an Electric ...

Page 9: ...98 7 4 10 How Do I Clear Component Runtime 200 7 4 11 How to Calibrate a Sensor 200 7 4 12 How Do I Change the Password 200 7 4 13 How to Set Alarm Parameters 201 7 4 14 How to Commission Single Component 202 7 4 15 How Do I Handle an E Label Identification Problem 203 7 5 WebUI Operations 204 7 5 1 How Do I Manage WebUI Users 205 7 5 2 How Do I Install a Network Security Certificate 207 7 5 3 How...

Page 10: ...0 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual Contents Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd ix ...

Page 11: ...sonal injuries or property damage will not be covered under the warranty Follow local laws and regulations when installing operating or maintaining the equipment The safety instructions in this document are only supplements to local laws and regulations The Company will not be liable for any consequences of the following circumstances Operation beyond the conditions specified in this document Inst...

Page 12: ...e specified procedures for installation operation and maintenance Before handling a conductor surface or terminal measure the contact point voltage and ensure that there is no risk of electric shock After installing the equipment remove idle packing materials such as cartons foam plastics and cable ties from the equipment area In the case of a fire immediately leave the building or the equipment a...

Page 13: ... any paint scratches caused during equipment transportation or installation in a timely manner Equipment with scratches cannot be exposed to an outdoor environment for an extended period of time Before operations ensure that the equipment is firmly secured to the floor or other solid objects such as a wall or an installation rack Do not use water to clean electrical components inside or outside of...

Page 14: ...o are trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation operation maintenance Trained personnel personnel who are technically trained have required experience are aware of possible hazards on themselves in certain operations and are able to take protective measures to minimize the hazards on themselves and ...

Page 15: ...ties must be performed by qualified personnel Cabling When routing cables ensure that a distance of at least 30 mm exists between the cables and heat generating components or areas This prevents damage to the insulation layer of the cables Do not route cables behind the air intake and exhaust vents of the equipment Ensure that cables meet the VW 1 or ZB flame spread rating requirements or higher B...

Page 16: ...ing materials before storing or transporting them Figure 1 1 Wearing an ESD wrist strap Neutral Ground Voltage It is recommended that the three phase loads be equalized and the neutral ground voltage be kept at less than 2 V to meet power distribution requirements 1 4 Installation Environment Requirements To prevent fire due to high temperature ensure that the ventilation vents or heat dissipation...

Page 17: ...ear personal protective equipment such as the safety helmet and safety belt or waist rope and fasten it to a solid structure Do not mount it on an insecure moveable object or metal object with sharp edges Make sure that the hooks will not slide off Set a restricted area and eye catching signs for working at heights to warn away irrelevant personnel Carry the operation machinery and tools properly ...

Page 18: ...ass ladders when you need to perform live working at heights When a step ladder is used ensure that the pull ropes are secured and the ladder is held firm Before using a ladder check that it is intact and confirm its load bearing capacity Do not overload it Ensure that the ladder is securely positioned The recommended angle for a ladder against the floor is 75 degrees as shown in the following fig...

Page 19: ...nside Metal shavings from drilling may short circuit boards inside the equipment Obtain consent from the customer and contractor before drilling holes Wear goggles and protective gloves when drilling holes When drilling holes protect the equipment from shavings After drilling clean up any shavings that have accumulated inside or outside the equipment Moving Heavy Objects DANGER When pulling the eq...

Page 20: ...y Welding At least two persons are required on a welding site A welder must have a work permit A welding site must be free from inflammables Ensure that a fire extinguisher wet wiper and water container are available A burning welding torch must not be placed on a component or on the floor and must not be placed in a metal container with acetylene and oxygen Otherwise the gas may leak and cause a ...

Page 21: ...ther wastes that have a shell in European Union EU areas To avoid environment pollution and harm to human health wastes must be classified and recycled This also promotes resource reuse When recycling a device fill in the device information in the recycling collection system or contact your dealer for help The dealer can help you recycle devices in a safe and environment friendly way 1 7 Others Ex...

Page 22: ...0U40DC NetCol8000 C130U4FEC NetCol8000 C190D40D0 NetCol8000 C190D4FE0 NetCol8000 C190U40DC NetCol8000 C190U4FEC Figure 2 1 NetCol8000 model number No Meaning Description 1 Data center smart cooling product NetCol data center smart cooling 2 Model series 8000 in room smart cooling NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 2 Product Description Issue 07 2021 12...

Page 23: ...e connection 2 2 Technical Specifications Table 2 1 Downflow smart cooling product specifications Item NetCol8000 C070D NetCol8000 C130D NetCol8000 C190D Power system 380 415 V AC 3 PH 50 60 Hz dual power supplies Cooling capacity kW 1 60 1 118 8 182 9 Maximum current cooling only full configuration 7 3 A 16 5 A 14 A 32 3 A 20 7 A 39 A Number of fans 1 2 3 Air volume m3 h 13200 24000 36500 Air fil...

Page 24: ...A 32 3 A 20 7 A 39 A Number of fans 1 2 3 Air volume m3 h 12800 23500 35400 Air filter level G4 G4 G4 Dimensions H x W x D mm 2000 x 900 x 1000 single door 2000 x 1800 x 1000 double door 2000 x 2700 x 1000 triple door Net weight cooling only full configuration 310 kg 326 kg 580 kg 608 kg 810 kg 838 kg 1 Test conditions inlet outlet water temperature 7 C 12 C return air dry wet bulb temperature 24 ...

Page 25: ...Temperature adjustment range 15 45 C Temperature adjustment precision 1 C Humidity adjustment range 20 80 RH Humidity adjustment precision 5 RH 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual...

Page 26: ...Figure 2 2 NetCol8000 C upflow NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 2 Product Description Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 16 ...

Page 27: ...Figure 2 3 NetCol8000 C downflow NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 2 Product Description Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 17 ...

Page 28: ...Main control module 11 User wiring terminal 12 Temperature and humidity T H sensor 13 Air filter 14 Electric heater 15 Fan NOTE 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 2 Product Descripti...

Page 29: ...SU 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 2 Product Description Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 19 ...

Page 30: ...exchanger 5 Main control module 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 2 Product Description Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 20 ...

Page 31: ...itch 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 2 Product Description Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 21 ...

Page 32: ...free cooling plenum optional applicable only to the downflow model differential pressure sensor optional differential pressure switch and supply air cap optional applicable only to the upflow model For models with heating and humidification functions the cooling components also include the wet film humidifier and electric heater Heat exchanger The A type or V type finned tube exchanger with a high...

Page 33: ...onal Motorized damper Gravity damper When a smart cooling product is powered off the damper is closed intelligently to prevent loss of air volume and cooling capacity Optional Direct free cooling plenum It fully uses the outdoor free cooling source intelligently adjusts the fresh air and return air ratios and fan speed and saves energy by over 30 a year compared with the traditional chillers Optio...

Page 34: ...es a 7 inch true color touchscreen that provides man machine interfaces for query setting management and maintenance Figure 2 9 Display module 1 Indicator 2 I2C 12V reserved 3 DP port display port connected to the main control module 4 SW reserved Table 2 4 Indicator and buzzer status description Indicator Buzzer Running Status Green No buzzing The unit is operating properly or there is a warning ...

Page 35: ...artup shutdown Teamwork When multiple units work cooperatively the controller optimally distributes the heat load to reduce energy consumption and provides backup to improve reliability Backup When a unit in the group is faulty the backup unit starts to operate automatically improving system reliability Rotation Each unit enters the active mode one by one periodically On demand operation The numbe...

Page 36: ...dly interface The controller is highly precise and responsive The display panel is protected by a multi level password protection mechanism to avoid misoperation The password is verified each time the system is started or shut down to ensure system operation security The controller provides functions such as automatic recovery after power failure and water leakage detection improving the system re...

Page 37: ... no alarm or a warning or minor alarm is generated Steady red There is a major or critical alarm Communications Ports FE_1 and FE_2 ports reserved for connecting FE MAC_CAN teamwork communications cables 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 c...

Page 38: ...hen the unit is powered on for the first time and view or obtain the running information about the unit during inspection The user must be an authorized service engineer To ensure security remove the WiFi module immediately after use Connects a USB flash drive to export data import and export configuration files import certificates and keys and upgrade the version DP port connects to the display m...

Page 39: ...ng alarm reporting data storage user right management and teamwork control You can connect the smart cooling product monitoring system to your monitoring system over a northbound communications port to perform remote management The smart cooling product supports remote management ports and provides RS485 ports and FE ports to support Modbus RTU Modbus TCP and SNMP for real time data collection and...

Page 40: ...t 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 30 ...

Page 41: ...led 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 NOTE Components shown by 5 and 6 in the preceding figure are delivered with the smart cooling product Other components need to be purchased and installed onsite Do not install the other components directly unde...

Page 42: ...affle plates or plastic bags to prevent dust from accumulated on the top of the equipment or entering the equipment Layout Requirements Check whether the environment meets the requirements before installation and whether reconstruction is required for routing water pipes and cables and constructing ventilation pipes The equipment room should have good heat insulation and the walls and floor should...

Page 43: ...d floors is greater than 300 mm for upflow units W indicates the distance between smart cooling products The minimum W for upflow units is 300 mm and the minimum W for downflow units is 500 mm 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 mm Figure 3 4 Layout of bottom pipe routing 2 1...

Page 44: ...000 C NOTE W indicates the distance between smart cooling products and the minimum W is 600 mm 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 mm 3 1 4 Installation Requirements NOTICE If the water inlet temperature exceeds 10 C or the total load is less than 30 of the cooling capacity o...

Page 45: ...eft and bottom pipe routing Maintenance distance Front maintenance distance 900 mm Power distribution requirements Leakage circuit breakers are not recommended for the main power route If leakage circuit breakers are required by the customer or by local regulations use the residual current circuit breaker RCCB that is not sensitive to the single phase DC pulses and transient current pulses 3 2 Ins...

Page 46: ...ic discharge ESD gloves Wire stripper Needle nose pliers Diagonal pliers Combination pliers Torch Measuring tape Step ladder Polyvinyl chloride PVC insulation tape Claw hammer Table 3 4 Tools for transportation Name Specifications and Appearance Pallet jack Forklift NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei ...

Page 47: ... pipe thread sealant with polytetrafluorethylene PTFE for short as the filler Glycol solution resistance adapting to the thread size with pipeline Maximum seal gap is less than 0 5 mm The maximum pressure is greater than 1 6 MPa Conforms to JB T7311 2008 engineering mechanical the anaerobic adhesive application technology specification profession standard Table 3 6 Tools for electrical connections...

Page 48: ... damper direct free cooling plenum and cap Engineering procurement material Customers need to purchase this type of materials by themselves Humidifier water inlet pipe drainpipe conversion adapter pipe support and equipotential ground cable 3 2 2 1 Water Inlet Pipe of the Wet Film Humidifier Figure 3 6 Connecting a water inlet pipe 1 External thread connector G 3 4 inch 2 Rigid pipe conversion ada...

Page 49: ...e dotted box is a reserved port Other items need to be purchased 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co...

Page 50: ...steel 304 is recommended for pipe supports and pipe clamps Install a support every 2500 mm in the straight sections of pipes and 1000 mm away from each bending point in the turning section 3 2 2 5 Cables NOTICE 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 ...

Page 51: ...able 600 V 1000 V ZA RVV 5 x 4 mm2 black five core wires red yellow green blue black 27 A outdoor cable CE The length is determined based on the pre sales engineering survey The neutral wire is not required for the power input to the product Cut the blue neutral wire onsite and wrap the exposed part using insulation tape You can also purchase 4 core power cables in advance Equipotential ground cab...

Page 52: ...power cable 600 V 1000 V ZA RVV 5 x 6 mm2 black five core wires red yellow green blue black 32 A outdoor cable CE The length is determined based on the pre sales engineering survey The neutral wire is not required for the power input to the product Cut the blue neutral wire onsite and wrap the exposed part using insulation tape You can also purchase 4 core power cables in advance Equipotential gro...

Page 53: ...king the Nitrogen Pressure Context The device has been injected with 0 2 0 6 MPa Nitrogen before delivery Check the nitrogen pressure for nitrogen leaks Procedure Step 1 Open the front door Step 2 Check whether the bonnet of the drainage valve inside the cabinet is missing If it is missing contact technical support NOTICE In scenarios of multiple modules you can perform such operations on any exha...

Page 54: ... Procedure 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 44 ...

Page 55: ...ood air tightness Remove the bonnet from the needle valve and press the valve plug to check whether there is a sound of air flow Open the exhaust valve of each heat exchanger to exhaust nitrogen onsite Context DANGER Before connecting chilled water pipes exhaust nitrogen used for avoiding injury Figure 3 12 Upflow exhaust valve 1 Exhaust valve NetCol8000 C 070 130 190 In room Chilled Water Smart C...

Page 56: ...g the Pallet Procedure Step 1 Open the front door and remove the rear door Step 2 Remove the bolts that secure the cabinet and the pallet using a 19 socket wrench NOTE For a single door and double door cabinet remove the four bolts from both sides NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd...

Page 57: ...tach shock absorption bars between the base and the equipment NOTICE Shock absorption bars made of EPDM rubber and 5 mm thick are attached to the base top Cut the shock absorption bars based on the actual base dimensions 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 ...

Page 58: ...ottom plate hold the fan to prevent it from flipping automatically Procedure Step 1 Open the front door Step 2 Remove the screws of the fan maintenance baffle plate using a Phillips screwdriver and remove the fan maintenance baffle plate Figure 3 16 Removing the baffle plate NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyrigh...

Page 59: ...piece Figure 3 17 Removing the beams and connecting piece Step 4 Turn the fan backwards When the fan is 45 degrees to the bottom of the cabinet pull the fan along the guide rails on both sides and turn it backwards until the fan is completely horizontal DANGER At least two people are required to rotate the fan NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Insta...

Page 60: ...the connecting piece at the bottom of the unit 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 50 ...

Page 61: ...n be routed from the bottom of the downflow units Select appropriate holes for routing cables based on the onsite cable routes Holes in the Side Panel of an Upflow Unit Figure 3 20 Holes in the side panel of an upflow unit unit mm 1 Drainpipe hole 2 Signal cable hole 3 Chilled water inlet pipe hole 4 Humidifier water inlet pipe hole 5 Chilled water outlet pipe hole 6 Active power cable hole 7 Stan...

Page 62: ...sure tube hole for the differential pressure sensor 6 Signal cable hole 7 Standby power cable hole 8 Active power cable hole 3 5 2 Installing the Chilled Water Pipe Context CAUTION Before installing the pipe release all nitrogen from the pipe to avoid personal injury NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei...

Page 63: ...ener at the position that is 1000 mm away from the changing point When the chilled water pipe is straight add a fastener every 2500 mm NOTE Onsite personnel prepare the required materials and install the fasteners Figure 3 22 Fastener layout unit mm Table 3 9 Chilled water pipe port diameter Unit Model Chilled Water Supply Pipe Outer Port Diameter Chilled Water Return Pipe Outer Port Diameter NetC...

Page 64: ...pipes from being distorted as shown by 1 in Figure 3 24 Step 3 Apply thread sealant to the joints of the outer screw threads of the external pipe as shown by 2 in Figure 3 24 Step 4 Connect the water pipe by using a 75 open end wrench and an 18 pipe wrench as shown by 3 in Figure 3 24 Figure 3 24 Connecting pipes NOTE The figure uses side pipe routing as an example If bottom pipe routing is used p...

Page 65: ...reserve the pressure at least 8 hours after an adapter is connected Step 2 To avoid deforming the pipe use a 75 open end wrench to fix the pipe nut use a 36 open end wrench to fix the plug and then remove the plug as shown by 2 in Figure 3 25 Step 3 Apply thread sealant evenly on the joints of external screw threads and install the pipes from inside out as shown by 3 in Figure 3 25 Step 4 Use a 75...

Page 66: ...water flow direction Procedure 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 56 ...

Page 67: ...inpipe NOTICE 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 57 ...

Page 68: ...ering device at the port of the water inlet pipe for the wet film humidifier The following figure uses a rigid pipe as an example Figure 3 30 Water inlet pipe Port reserved in the device G 1 2 in port with outer threads 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 NetCol8000 C 070 130 190 ...

Page 69: ...han 0 8 MPa Procedure Step 1 Rotate the chilled water valve to the maximum openness 100 Step 2 Check that the needle valves and exhaust valves on the pipeline are closed 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 NetCol8000 C 070 130 190 In room Chilled Wate...

Page 70: ...utlet pipes before the cleaning and turn them on afterwards If a cabinet has been disassembled check that hold hoops on the pipe connectors do not leak If there is no water leakage wrap the hold hoops with thermal insulation foam Open the exhaust valve of each heat exchanger to exhaust nitrogen onsite Ensure that the indoor temperature is always above 0 C during the leakage test with water otherwi...

Page 71: ...age test with nitrogen has been performed skip this step Raise the water pressure in the chilled water pipe to 0 8 MPa If no leakage occurs after 30 minutes retain the pressure for 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 NetCol8000 C 070 130 190 In...

Page 72: ...y grounded before being powered on Keep cables away from fans and copper pipes otherwise take protective measures and connect cables securely Cable colors in this document are for reference only 3 6 1 Positions of Electric Ports After opening the front door you can see the electric ports as shown in the following figure Figure 3 34 Layout of the connection box and electric control box upflow 1 Act...

Page 73: ...QF2 3 Ground screw 4 Fan switch QF4 5 Cable clamp 6 Fuses 1 4 7 Dual power supply switch over contactor KM1 KM2 8 Intermediate relay KM3 9 Electric heater switch QF3 10 Electric heater contactor KM4 KM5a NOTE a The NetCol8000 C070D unit does not have the terminal of the electric heater contactor KM5 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Iss...

Page 74: ...ape Cables can be routed from the bottom or side of the upflow units and cables can be routed from the bottom of the downflow units Knock off the padding of holes at the proper positions based on the onsite cable routing method and route the cables through the holes Procedure Step 1 A ground cable must be routed from the equipotential bonding point of the cabinet to the ground The following figure...

Page 75: ...t 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 65 ...

Page 76: ...s with dual power supplies End 3 6 3 Installing Signal Cables Prerequisites CAUTION Before connecting signal cables take effective ESD protection measures NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 66 ...

Page 77: ...DC 5 Common alarm 1 0 5 V feedback of the micro differential pressure sensor Return air damper Motorized air damper AI 6 Common alarm 1 Micro differential pressure sensor 5 V DC Return air damper Motorized air damper AO 7 Common alarm 2 Differential pressure switch GND of the fresh air filter Return air damper Motorized air damper GND 8 Common alarm 2 Differential pressure switch NTC2Z of the fres...

Page 78: ...st be less than or equal to 310 m Route cables in compliance with local standards Take appropriate shielding measures such as using a galvanized pipe or an ELV cable tray to reduce the impact of electromagnetic interference on teamwork communication Otherwise teamwork networking may fail 3 6 4 1 Preparing a Network Cable Step 1 Crimp a network cable Figure 3 42 Teamwork communications cable and FE...

Page 79: ...d last units set Enable teamwork CAN resistor to Yes It takes 3 x n seconds to collect data from n units If the time required for the host to collect data from all units does not meet the performance requirements group the units If units are not grouped n 1 set RS485 monitoring grouping to Enable on the Modbus Settings screen for each unit If units are grouped n 1 recommended n 4 set RS485 monitor...

Page 80: ...Step 1 Connect teamwork and monitoring communications cables Networking CAN Teamwork FE Monitoring Protocol CAN Modbus TCP SNMP Description 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 In...

Page 81: ...ble connection method and route Before connecting the cable ensure that the water valve actuator is correctly installed Procedure 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 NetCol8000 C 070 130 190 In room Chi...

Page 82: ... actuator L24 24 V AC V DC power supply M neutral wire and signal of 24 V AC V DC power supply Yv input signal for proportional control Xv output signal NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 72 ...

Page 83: ...the gravity damper 3 6 7 Optional Installing a Motorized Damper Only for a Downflow Unit If the unit needs to be completely isolated from air flow ducts when it is shut down use air dampers Procedure 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 1 Independent installation applicable to the NetCol8000 C070D NetCol8000 C13...

Page 84: ...er wiring 2 Combined installation applicable to NetCol8000 C190D Two air dampers are installed side by side and the actuator is located leftward NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 74 ...

Page 85: ... 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 Red NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 75 ...

Page 86: ...H sensors be deployed near heat sources in the hot aisle or near places that lack cooling capacity in the cold aisle Place the T H sensors outside the cabinet adjacent to the smart cooling product without directly facing the exhaust vents of the smart cooling product Procedure 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 Connec...

Page 87: ... Connect all T H sensors in series in this way The T H sensors should be 1 5 m above the ground 33 U Each smart cooling product supports a maximum of three T H sensors in the cold and hot aisles respectively Figure 3 54 Connecting T H sensor cables 1 Return air T H sensor 2 T H sensor outside a cabinet 3 568B standard network cable Step 2 Set the DIP switches of T H sensors Table 3 11 shows the DI...

Page 88: ... ON ON OFF OFF Cold aisle T H sensor 3 13 ON OFF ON ON OFF OFF Hot aisle Hot aisle T H sensor 1 21 ON OFF ON OFF ON OFF Hot aisle T H sensor 2 22 OFF ON ON OFF ON OFF Hot aisle T H sensor 3 23 ON ON ON OFF ON OFF Direct ventila tion Fresh air tempera ture and humidit y 29 ON OFF ON ON ON OFF NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 20...

Page 89: ...000 choose Settings System Settings Indoor Fan and set Direct free cooling to Enable For details about how to install the direct free cooling plenum see the documents delivered with it 3 6 10 Optional Installing a Differential Pressure Sensor Bind the pressure inlet tube along the pipeline and the distance between two binding points should not exceed 2 5 m 3 6 10 1 Optional Installing an Upflow Di...

Page 90: ...re box There should be two binding points adjacent to the pressure inlet The distance between the binding point closer to the pressure inlet and the pressure inlet should not exceed 25 mm and the distance between two binding points is within 20 30 mm You do not need to connect the other port on the pressure differential sensor to the PU hose NOTICE You do not need to connect the other port on the ...

Page 91: ... If a blocked damper is configured route the pressure tube through the hole reserved in the damper enclosure frame and bind the pressure tube to the cable bridge inside the damper enclosure frame After powering on the NetCol8000 choose Settings System Settings Common Settings and set Air side difference pressure sensor type to 0 500Pa Procedure Step 1 Secure the differential pressure sensor inside...

Page 92: ...ure inlet should not be greater than 25 mm Step 3 Connect the longer PU hose to the port without the Lo silk screen in the lower part of the differential pressure sensor and route the hose to the outside through the cable hole at the bottom of the cabinet as shown by 2 in Figure 3 58 You are advised to bind the pressure inlet to the base closest to the smart cooling product at 1 2 height of the ra...

Page 93: ...am of the smart cooling product and ensure that the reserved holes in the thermal insulation foam are aligned with the holes in the beam Check that the cap is intact and free from scratches that the sheet metal is not bent and that the screws are secure 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 NetCol...

Page 94: ...es you can adjust the shutter angle to some degrees downward so that the cold air can cool the device directly It is recommended that the angle downward should not exceed 30 degrees to avoid that part of the cold air flows back to the smart cooling product affecting the cooling effects Procedure Step 1 Remove the cap front panel using a Phillips screwdriver Place the cap on the top of the cabinet ...

Page 95: ...anel to the frame and adjust the angle of the front panel blade NOTICE 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12...

Page 96: ...foreign matter inside the cabinet such as cable ties and stubs has been cleaned up Passed Failed Optional Electric heater The electric heater is secured Passed Failed Water pan The foreign matter inside the water pan is cleaned up Passed Failed Optional Wet film humidifier The water inlet solenoid valve is secured Passed Failed The wet film humidifier is secured reliably and steadily Passed Failed...

Page 97: ...ed with thermal insulation foam and no metal or hose are exposed Passed Failed Cables to the chilled water valve and its actuator are secured Check that the manual button on the actuator is reset the button bounces up Passed Failed Exhaust valve The exhaust valve is closed Passed Failed Drainage valve The drainage valve is closed Passed Failed Pipe connection The water has been filled and air has ...

Page 98: ... and steadily Passed Failed Cables are connected reliably and steadily Passed Failed Optional Motorized Damper Gravity Damper The damper and cabinet are secured reliably and steadily by bolts as required Passed Failed Applicable to motorized damper Cables of the damper actuator are connected reliably and steadily Passed Failed Optional Water leakage sensor Cables to the water leakage sensor are co...

Page 99: ...he differential pressure tube is reliably secured without blockage or bend Passed Failed NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 3 Installation Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 89 ...

Page 100: ...d the smart cooling product is properly grounded Step 4 Verify that the input voltage meets the requirement Step 5 Verify that the indoor unit power cable is connected properly Step 6 Verify that the water sensor is properly installed Step 7 If teamwork networking is required verify that the teamwork cable is correctly connected Step 8 Verify that the cable connections and DIP switch settings of t...

Page 101: ... Settings screen is displayed Log in as user admin as shown in Figure 4 1 Figure 4 1 Initial power on Table 4 1 Preset passwords User Preset Password Permission Description admin administrator user 000001 People can operate all menus operator common user 000001 Can only view parameters and set some parameters NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 4 Power ...

Page 102: ...the lower right corner of the screen and tap or in the upper right corner of the screen to manually log out after you have completed all operations Step 3 Set related parameters and tap Next until the home screen is displayed Table 4 2 Parameter description Menu Parameter Description Select Language Specifies the display language Date Time Settings Date format Specifies the date format Date settin...

Page 103: ...tional Parts Return air sensor Enables or disables a sensor Cold aisle sensor Enables or disables a sensor Hot aisle sensor Enables or disables a sensor Cold aisle temperature and humidity sharing This function can be enabled only when at least one smart cooling product in the group is equipped with cold aisle T H sensors If this function is enabled the master unit in the teamwork group collects t...

Page 104: ...ng Set this parameter as required Primary power only Select this option when the dual power model is connected to the primary power only Primary power first Select this option when the dual power model is connected to two power supplies Require password to start or shutdown onsite No No password is required for startup or shutdown Yes A password is required for startup and shutdown Dehumidifying f...

Page 105: ...t to Smoke Water only DO_2 acts according to DO_2 action when a smoke or water overflow alarm is generated If this parameter is set to Critical alarm DO_2 acts according to DO_2 action when a critical alarm is generated If this parameter is set to Major alarm DO_2 acts according to DO_2 action when a major alarm is generated If this parameter is set to Alarm DO_2 acts according to DO_2 action when...

Page 106: ... as usual when an in cabinet water overflow alarm is generated Only indoor fan running Only the indoor fan runs when an in cabinet water overflow alarm is generated Humidifier stopped Only the humidifier is stopped when an in cabinet water overflow alarm is generated T H Sensor Temperature and humidity control type When the application scenario is non aisle containment you are advised to choose Re...

Page 107: ...s The communication addresses of the two smart cooling products connected to the same management system must be different End 4 3 Home Screen The home screen of the display module displays the system status and allows you to access other function menus such as Running Alarms and Settings Figure 4 2 shows the home screen of the display module NOTICE User interfaces displayed in this document are fo...

Page 108: ...n it buzzes when an alarm is generated When the buzzer is buzzing you can tap anywhere on the screen to mute the buzzer After the buzzer is muted it still buzzes when a new alarm is generated The icon indicates that the buzzer is off silenced After the buzzer is silenced it does not buzz when an alarm is generated 5 Critical alarms indicates the number of active critical alarms 6 Major alarms indi...

Page 109: ... optional temperature and humidity changes Teamwork Sets and checks teamwork control information based on the requirements of the smart cooling product Running Checks the component status system parameters and the name control and operating status and other related information of the components in the current smart cooling product system Alarms Checks the active and historical alarms of the smart ...

Page 110: ...in user This section describes how to enable Return air sensor 2 Procedure Step 1 On the home screen choose Settings System Settings T H sensor The screen shown in Figure 4 3 is displayed Figure 4 3 T H Sensor Step 2 Set Return air sensor 2 to Enable Step 3 Set the temperature and humidity parameters by referring to Table 4 4 NOTE You are not recommended to modify the parameters not listed in Tabl...

Page 111: ...ed on the Average value Max value or Min value of the temperatures collected by each sensor Average value Select Average value if the temperature is to be controlled based on the averaged data value collected by the collector Max value Select Max value if the temperature is to be controlled based on the maximum data value collected by the collector Min value Select Min value if the temperature is ...

Page 112: ...rl Step 3 Change the other parameters based on the following instructions Table 4 5 Parameter description Parameter Description Configuration Principle Indoor fan control type Sets the control type for the indoor fan Normally retain R S air temp diff rate ctrl If the differential pressure sensors are configured change to Pressure diff ctrl Indoor fan silent mode Set maximum speed of indoor fan to ...

Page 113: ...es and delivers group data The recommended value range is 1 to the number of units in the group Context The parameters in this section are for reference only Set actually parameter values as required Procedure Step 1 On the home screen tap Teamwork Settings to enter the Teamwork Settings screen as shown in Figure 4 4 Figure 4 4 Teamwork Settings Step 2 Set teamwork control parameters All teamwork ...

Page 114: ...other units Networking mode Specifies the networking mode for teamwork control The networking mode selected on the screen must match the actual networking mode Otherwise the teamwork function is unavailable Teamwork parameter synchronization If Teamwork function and Teamwork parameter synchronization are both set to Enable you can select Set Local or Set Teamwork when setting parameters NOTE Set L...

Page 115: ... the anti competitive running mode of the teamwork group is dehumidification the master unit sends the anti competitive running flag whose value is dehumidification allowed to the units allowed to dehumidify Rotation function Indicates whether to allow the smart cooling products to work as the standby device in turn maximizing their service life NOTE It is recommended that the function be enabled ...

Page 116: ...cade function to start standby units if running units cannot meet the cooling capacity requirement Differential pressure sharing When this parameter is enabled the smart cooling product which is not equipped with the differential pressure sensor in the group is logically controlled by using the acquired value of the differential pressure sensor Cold aisle temperature and humidity sharing This func...

Page 117: ...lete the teamwork settings for all the smart cooling products by performing Step 1 and Step 2 Step 4 On the home screen of the display module of any teamwork controlled smart cooling product tap If the teamwork control succeeds the teamwork topology of the smart cooling product in the group is displayed Figure 4 5 Teamwork topology No Item Note 1 On Off On The device is started Off The device is s...

Page 118: ...evice is operating without any critical alarms NOTE If teamwork succeeds the teamwork icon is green If teamwork fails the teamwork icon is red If teamwork mode is disabled the teamwork icon is gray End Follow up Procedure After you have completed the settings perform the following checks to confirm whether the teamwork control is available 1 Check whether the device number on the topology is the s...

Page 119: ...e 4 6 Access Control Parameter Description Remote control Enable Users can control the unit over their monitoring system Disable Users cannot control the unit over their monitoring system SSH LAN Enable Access to the unit through the intranet using SSH default port number 22 is allowed Disable Access to the unit through the intranet using SSH is not allowed If this parameter is set to Disable the ...

Page 120: ...with the smart cooling product through this address and the communication addresses of two smart cooling products connecting to the same EMS must be unique RS485 monitoring grouping Enable Disable For CAN networking and no grouping scenario set the RS485 monitoring grouping of the last smart cooling product to Enable For CAN networking and grouping scenario set the RS485 monitoring grouping of the...

Page 121: ...nd set Link mode to Server and client or Client Set Client encryption to Enable Figure 4 9 Modbus Settings Step 3 Enter the actual IP address of the NMS 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 NOTE The encryption mode must be the same as it on the NMS NetCol8000 C 070 130 190 In room Chilled W...

Page 122: ...f the display panel NMS client and NMS server must be unique This parameter is configurable when Link mode is set to Client NMS port number It is recommended that you retain the default value If you need to change the value enter a value as required This parameter is configurable when Link mode is set to Client Pre shared password Secondary authentication password used for Modbus TCP connection En...

Page 123: ...al plan tap and tap Submit 2 Tap the text box next to Write Community set the write community parameter based on the actual plan tap and tap Submit Step 4 Add an SNMPv3 user 1 Tap Add under SNMP V3 2 Set User Name Auth Protocol and Prop Protocol based on the actual plan 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 Th...

Page 124: ...p Submit Step 5 Tap the text box after SNMP Port as shown in Figure 4 12 Set SNMP Port to the actual port number tap and then tap Submit Figure 4 12 Setting the SNMP port NOTE SNMP Port is set to 161 by default Step 6 Tap Next Page Step 7 Set SNMP trap parameters 1 Tap Add under SNMP Trap 2 Set Trap Address as planned and Trap Port to the actual port number NOTE Trap Port is set to null by default...

Page 125: ...control module WIFI Settings is enabled to be set Procedure Step 1 On the home screen choose Settings Comm Settings WIFI Settings Figure 4 13 WIFI Setting Step 2 Set parameters Parameter Description WiFi SSID Set WiFi SSID based on the actual configuration WiFi SSID is the name used for the WiFi hotspot over which a mobile phone can connect to the smart cooling product WiFi password Enter the WiFi...

Page 126: ... threshold Cold aisle high temperature alarm threshold 5 C Hot aisle high temperature alarm threshold Cold aisle high temperature alarm threshold 5 C Return air high temperature alarm threshold Supply air low temperature alarm threshold 5 C Return air low temperature alarm threshold Supply air low temperature alarm threshold 5 C Hot aisle low temperature alarm threshold Cold aisle low temperature ...

Page 127: ...trol type can be set to Pressure diff ctrl When Indoor fan control type is set to Pressure diff ctrl Air side difference pressure sensor type cannot be set to No or 0 50Pa When Indoor fan control type is not set to Pressure diff ctrl Air side difference pressure sensor type cannot be set to 0 50Pa Parameters of System Control Cooling start temperature demand Cooling stop temperature demand Lower l...

Page 128: ...ion Figure 4 15 Initial startup Figure 4 16 Entering the startup password Step 2 Select Offline Boot or Online Boot as required on the Service Expert app for initial startup verification NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 4 Power On Commissioning Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 118 ...

Page 129: ...password on the mobile phone app to start the smart cooling product After factory settings are restored re verification for startup is required For details see Offline Boot or Online Boot for verification End Offline Boot Step 1 Open the Service Expert app Step 2 Tap StartUp on the home screen of the app The screen shown in Figure 4 17 is displayed Figure 4 17 Offline boot Step 3 Tap Offline Activ...

Page 130: ...ate a new startup password Step 5 Tap Password on the home screen of the display module and enter the generated startup password in the displayed dialog box End Online Boot Step 1 Insert the WiFi module to the USB port on the main control board Step 2 Choose Settings Comm Settings WIFI Settings on the home screen of the display module Then set WiFi parameters and enable the WiFi function Step 3 Co...

Page 131: ...cted Select NetCol8000 C in this situation Link Enable the connection between the device and the WiFi network IP Port and devAddr Enter the values as planned For details see values on the Modbus settings screen of the display module Step 6 Tap Login after the parameters are set Step 7 After login tap Power on password activation on the screen The screen shown in Figure 4 20 is displayed indicating...

Page 132: ...rtup the screen displays the Wizard Startup screen You can choose to start commissioning now You can also choose Maint Wizard Startup to start commissioning in future NOTICE Tapping No or Exit submission timeout and system exception all result in commissioning failures Choose Maint Wizard Startup to enter the Wizard Startup screen for new commissioning Procedure Step 1 On the home screen choose Ma...

Page 133: ...re startup is displayed as shown in Figure 4 22 Figure 4 22 Checking before startup 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 4 Power...

Page 134: ...onent commissioning is displayed as shown in Figure 4 24 Figure 4 24 Fan commissioning NOTE The fan commissioning item is mandatory After commissioning for a component succeeds the system automatically performs commissioning for the next component you selected If commissioning fails startup wizard ends Step 6 View the commissioning result The screen shown in Figure 4 25 is displayed if component c...

Page 135: ... mode the Shutdown button is green unavailable and the Start button is gray available Procedure Step 1 Tap Shutdown on the home screen of the display module A dialog box is displayed indicating whether to shut down the smart cooling product as shown in Figure 4 28 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 4 Power On Commissioning Issue 07 2021 12 30 Copyright...

Page 136: ...mperature no lower than 3 C and two methods are used for antifreezing Method 1 Fill glycol into the system to prevent the heat exchanging pipes of the smart cooling product from freezing up and cracking at low temperatures scenarios Method 2 Use the drainage method to drain all water out of the NetCol8000 C and to prevent the heat exchanger from cracking This section uses method 2 as an example Pr...

Page 137: ...er out of the NetCol8000 C For the upflow units Connect a nitrogen cylinder to the drainage needle valve 1 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 2 Then connect the nitrogen cylinder to the drainage needle valve 2 of the heat exchanger set the intake pressure to 0 5 MPa and bl...

Page 138: ...ected to a needle valve When using high pressure nitrogen to drain water prevent the remaining water in the water pan from splashing End 4 10 Checking After Commissioning Table 4 10 lists the commissioning checklist Table 4 10 Commissioning checklist Check Item Actual Result No oil stain exists on the copper pipe thermal insulation foam or bottom plate or it has been cleaned Passed Failed The need...

Page 139: ...ress and the IP address of the unit in the same network segment For example if the IP address of the unit is 192 168 248 10 the subnet mask is 255 255 255 000 and the default gateway is 192 168 248 1 set the IP address of the PC to 192 168 248 12 the subnet mask to 255 255 255 000 and the default gateway to 192 168 248 1 NOTE The unit IP address must be different from the PC IP address Log in from...

Page 140: ...to a LAN and a proxy server has been selected perform Step 2 3 and Step 2 4 If the unit connects to the Internet and the PC in a LAN accesses the Internet over a proxy server do not perform Step 2 3 or Step 2 4 Otherwise you will fail to access the WebUI 1 Open the Internet Explorer and choose Tools Internet Options 2 Click the Advanced tab and select Use TLS1 1 and Use TLS1 2 Figure 5 1 Setting I...

Page 141: ... connection between the WebUI and a browser To improve system security you are advised to use your own security certificate and periodically update it The imported security certificate needs to be bound to the IP address of the unit Otherwise the security risk warning will still be displayed during login Figure 5 3 Security certificate problem 2 On the login page enter the preset user name admin a...

Page 142: ...inutes after system login End 5 2 WebUI Description For data transmission security the smart cooling product supports WebUI access through SSL Figure 5 4 Home page Table 5 1 Functions provided by the home page Tab Functions System Overview View the temperature and humidity control type and setpoints View cooling output fan output humidifying output and heating output Active Alarms Query active ala...

Page 143: ...ess Set Modbus communications parameters Set the SNMP network parameters Configure the outbox Configure the IP address whitelist Perform access control Configure security information Maintenance The system and components of the unit can be upgraded online Query the version and e labels Query and export fault information Manage users such as adding modifying deleting locking and unlocking users Imp...

Page 144: ...e a thorough training understand all necessary safety precautions and be able to correctly perform all operations Strictly follow the safety precautions and instructions of devices when performing operations Users are liable for any consequence caused by violation of general safety operation requirements or safety standards for device design production and use Most maintenance tasks need to be per...

Page 145: ...re intact Replace the fan Check that no foreign matter exists in the fan Clear foreign matter Check that the indoor fan generates no abnormal sound during operation such as metal friction sound and harsh noises Clear foreign matter and check that screws securing the fan are tightened Check that the screws on the indoor fan are not loose or distorted Tighten or replace the screws Water pan Water pa...

Page 146: ...ce the electric heater Wet film humidifier Check that the valve on the water inlet pipe for the wet film humidifier is open When the NetCol8000 C is on choose Maint Diagnostic Mode Enter to start the wet film humidifier If no water is supplied check the cable connection or replace the water inlet solenoid valve Cables Check that cables are not aged Replace cables if necessary Differential pressure...

Page 147: ...o the differential pressure sensor are securely connected Reconnect the cables Motorized Damper Gravity Damper Applicable to motorized damper Check that cables to the actuator are securely connected Reconnect the cables Check that the damper is securely fixed Fix the damper again Direct free cooling plenum Check that cables to the actuator are securely connected Reconnect the cables Check that the...

Page 148: ...nger surface Remove foreign matter 6 2 Alarm Reference NOTICE If the Clear button is not displayed on the Details screen of an alarm the alarm can be automatically cleared Such an alarm can be automatically cleared after the fault is rectified If the Clear button is displayed on the Details screen of an alarm the alarm can be manually cleared Such an alarm is manually cleared by tapping the Clear ...

Page 149: ...priate The value detected by the temperature sensor or temperature and humidity sensor is different from the actual value The chilled water flow is insufficient or the supply water temperature is high The chilled water valve is stuck or faulty 1 Adjust the positions of the temperature sensors or temperature and humidity sensors 2 Add air conditioners or contact Huawei technical support 3 Measure t...

Page 150: ...filters are blocked The chilled water valve is stuck or faulty 1 Adjust the positions of the temperature sensors or temperature and humidity sensors 2 Contact Huawei technical support 3 Measure the ambient temperature Check whether other causes exist if the alarm persists in a long time after startup 4 Adjust the low temperature alarm threshold 5 Calibrate or replace the temperature sensor or temp...

Page 151: ...mm 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 Major The cables to the temperature and humidity sensor are loose or damaged The DIP switch of the temperature and humidity sensor is set incorrectly The temperature and humidity sensor is faulty The communications port of the main control board is faulty 1 Check ...

Page 152: ... 2 Set the DIP switch of the temperature and humidity sensor correctly 3 Maintain or replace the temperature and humidity sensor 4 Maintain or replace the main control board A023 01 Electric heater 1 fault Electric heater 2 fault Major The cables to the temperature switch are loose or damaged The temperature switch is faulty The electric heater is faulty 1 Check cables to the temperature switch 2 ...

Page 153: ...t for the differential pressure switch 4 Dredge or replace the pressure tube 5 Check the cables to the differential pressure switch 6 Maintain or replace the air damper for the air filter 7 Enable the air damper for the air filter A027 01 Power loss alarm Warning The power supply is cut off If power failure occurs on the power system no maintenance is needed If it occurs in other places check the ...

Page 154: ...e The value detected by the temperature sensor or temperature and humidity sensor is different from the actual value The chilled water flow is insufficient or the supply water temperature is high The chilled water valve is stuck or faulty 1 Adjust the positions of the temperature sensors or temperature and humidity sensors 2 Add air conditioners or contact Huawei technical support 3 Measure the am...

Page 155: ...e air filters are blocked The chilled water valve is stuck or faulty 1 Adjust the positions of the temperature sensors or temperature and humidity sensors 2 Contact Huawei technical support 3 Measure the ambient temperature Check whether other causes exist if the alarm persists in a long time after startup 4 Adjust the low temperature alarm threshold 5 Calibrate or replace the temperature sensor o...

Page 156: ...icient or the supply water temperature is high The chilled water valve is stuck or faulty 1 Adjust the positions of the temperature sensors or temperature and humidity sensors 2 Add air conditioners or contact Huawei technical support 3 Measure the ambient temperature Check whether other causes exist if the alarm persists in a long time after startup 4 Adjust the high temperature alarm threshold 5...

Page 157: ...sors 2 Add air conditioners or contact Huawei technical support 3 Measure the ambient temperature Check whether other causes exist if the alarm persists in a long time after startup 4 Adjust the high temperature alarm threshold 5 Calibrate or replace the temperature sensor or temperature and humidity sensor 6 Check the pressure and temperature of chilled water 7 Maintain or replace the chilled wat...

Page 158: ...filters are blocked The chilled water valve is stuck or faulty 1 Adjust the positions of the temperature sensors or temperature and humidity sensors 2 Contact Huawei technical support 3 Measure the ambient temperature Check whether other causes exist if the alarm persists in a long time after startup 4 Adjust the low temperature alarm threshold 5 Calibrate or replace the temperature sensor or temp...

Page 159: ...filters are blocked The chilled water valve is stuck or faulty 1 Adjust the positions of the temperature sensors or temperature and humidity sensors 2 Contact Huawei technical support 3 Measure the ambient temperature Check whether other causes exist if the alarm persists in a long time after startup 4 Adjust the low temperature alarm threshold 5 Calibrate or replace the temperature sensor or temp...

Page 160: ...dity alarm threshold 5 Calibrate or replace the temperature and humidity sensor A094 01 Low humidity alarm Warning The ambient humidity is below the lower threshold The temperature and humidity sensor is not installed in a proper position The low humidity alarm threshold is inappropriate The value detected by the temperature and humidity sensor is different from the actual value 1 Measure the ambi...

Page 161: ...e the positions of the supply and return water pipes 4 Exchange the positions of the supply and return water temperature sensors 5 Calibrate or replace the supply water temperature sensor A098 01 Supply water low temperature alarm Warning The temperature of chilled water is lower than the supply water low temperature alarm threshold The supply water low temperature alarm threshold is inappropriate...

Page 162: ... failed Indoor fan 2 communication failed Indoor fan 3 communication failed Major The communications cable to the fan is not connected properly The fan drive is faulty 1 Check the communications cable connection to the fan 2 If the drive is integrated into the fan replace the fan If the drive is separate from the fan replace the drive A130 01 Humid water inlet solenoid valve fault Major The cables...

Page 163: ...ailure Major The SPD is faulty The cable to the SPD is not connected properly 1 Replace the SPD 2 Check the cable connection to the SPD A179 01 Humidifier function abnormal alarm Major The humidifier pump inlet is blocked The float does not drop because the humidifier float is faulty The cable to the humidifier pump is not connected properly The humidifier pump is faulty The water pump is blocked ...

Page 164: ...o the differential pressure sensor is loose or damaged The pressure tube of the differential pressure sensor is reversely connected The differential pressure sensor is faulty 1 Check the cable connection to the differential pressure sensor 2 Check the tube connection to the differential pressure sensor 3 Maintain or replace the differential pressure sensor A208 01 Indoor fan 1 blocked alarm Indoor...

Page 165: ...d on this air conditioner 1 Change the addresses of the units 2 Upgrade the air conditioner software For details see the section about the mapping between software and teamwork versions in the upgrade guide 3 Enable the sensor that corresponds to the temperature and humidity control type for the master unit on this air conditioner A272 02 Teamwork networking abnormal alarm Major Teamwork settings ...

Page 166: ...the indoor fan A278 04 Chilled water valve fault Major The cables to the chilled water valve are loose or damaged The chilled water valve is faulty 1 Check the control cable connection to the chilled water valve 2 Maintain or replace the chilled water valve A279 04 Motorized damper fault Return air damper fault Fresh air damper fault Critical The control cable to the air damper is loose or damaged...

Page 167: ...emp humid sensor fault Hot aisle 4 temp humid sensor fault Hot aisle 5 temp humid sensor fault Fresh air 1 temp humid sensor fault Major The cables to the temperature and humidity sensor are loose or damaged The temperature and humidity sensor is faulty 1 Check the cables to the temperature and humidity sensor 2 Maintain or replace the temperature and humidity sensor A27F 02 Water overflow alarm C...

Page 168: ...ables to the SPD and voltage detection board are loose or damaged The SPD and voltage detection board is faulty 1 Check that the power supply voltage is within the operating range 2 Check the cable connection to the SPD and voltage detection board 3 Replace the SPD and voltage detection board A281 20 A281 40 A281 80 Power voltage abnormal Backup power voltage abnormal Major The power supply voltag...

Page 169: ...that the connection of the certificate server is normal 3 Ensure that the installed certificate is within the validity period A30E 01 A30E 02 A30E 04 Certificate has expired Warning The corresponding certificate has expired The system time is incorrectly set 1 Apply for a new certificate promptly and update the existing one 2 Calibrate the system time 6 3 Troubleshooting CAUTION Certain circuits i...

Page 170: ...s enabled on the display module The ambient temperature and humidity sensor is faulty If the T H sensor still cannot detect the temperature and humidity after the sensor is enabled replace the sensor in time The communications cable to the T H module is incorrectly connected Check whether a northbound communications cable is incorrectly connected to the T H sensor RS485 12V port on the front panel...

Page 171: ... solenoid valve cannot be closed Replace the water inlet solenoid valve Drainage capacity of the NetCol8000 C decreases The drainpipe is bend or trapped Check that drainpipes are free from bends and traps Ensure that the height difference for drainage is enough The heating function fails The electric heater temperature switch is being protected Check whether the temperature switch is faulty Replac...

Page 172: ...does not operate The actuator cable is not properly connected Check and reconnect the cable to the motorized damper actuator The actuator is faulty and does not operate Replace the actuator The air damper is stuck Replace the air damper The direct free cooling plenum does not operate The actuator cable is not properly connected Check and reconnect the cable to the air damper actuator The actuator ...

Page 173: ...edure Step 1 Tap Shutdown on the home screen of the display module NOTICE 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 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 Phi...

Page 174: ...using a 13 socket wrench and pull out the fan 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 164 ...

Page 175: ...gure 6 4 Moving the fan 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 16...

Page 176: ...ray in the following figure using a small flat head screwdriver remove the signal cable and power cable shown in the following figure and then remove the screw in the area marked by yellow namely the PE cable using a flat head screwdriver NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 166 ...

Page 177: ... the fan that is being processed Step 10 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 from the communications ports on other faulty fans message is displayed Then tap Yes The command is triggered successfully and the alarm is cleared Step 11 Power on the device choose Maint Startup Wizard on the home screen...

Page 178: ...he 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 Figure 6 8 Removing the fan maintenance baffle plate Step 3 Disconnect the fan cable from the interconnection terminal reserved in the cabinet Step 4 Remove the screws on the beams above the fan by using a 13 s...

Page 179: ...ght 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 Figure 6 10 Removing a fan Step 7 Remove the connection box cover using a security torx wrench NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07...

Page 180: ...arms Query Act Alarms and tap Indoor fan 2 communication failure used as an example to access the Details screen NOTICE If two or more fans need to be replaced onsite replace the first fan and clear its alarm After replacing the first fan power off the smart cooling product Then replace the next fan and clear its alarm Ensure that the indoor fan communication failure alarm to be cleared correspond...

Page 181: ...ce Maint screen and clear the runtime of the indoor fan End 6 4 2 Replacing an Air Filter 6 4 2 1 Replacing an Air Filter Upflow Context Tool Phillips screwdriver Procedure Step 1 Open the cabinet front door NOTICE Each module has four filters Install the air filter based on the air flow direction indicated on the frame Step 2 Remove the sheet metal fastener from the air filter using a Phillips sc...

Page 182: ...l out the air filter Figure 6 14 Removing a downflow air filter Step 3 Install a new air filter in a reverse order Step 4 On the home screen choose Maint Performance Maint to enter the performance maintenance screen and clear the runtime of the air filter End 6 4 3 Replacing an Electric Heater Context Recommended tools and materials protective gloves a Phillips screwdriver water proof glue diagona...

Page 183: ...on 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 For a device that has two power inputs turn off the active power switch QF1 and standby power switch QF2 Step 3 Remove the fan maintenance baffle plate After the electric heater cools to the room temperature cut off the cable tie on the elect...

Page 184: ...e and close the front door Step 7 Power on the device choose Maint Wizard Startup on the home screen and commission the electric heater to check that it works properly before you exit Step 8 On the home screen choose Maint Performance Maint to enter the performance maintenance screen and clear the runtime of the electric heater End 6 4 3 2 Replacing an Electric Heater for a Downflow Model Step 1 T...

Page 185: ...e electric heater cable and disconnect the interconnection terminal Step 5 Remove the four bolts from both ends of the electric heater and take out the electric heater Figure 6 19 Removing an electric heater Step 6 Install and secure the new electric heater by performing Step 6 to Step 3 Install the fan maintenance baffle plate and close the front door Step 7 On the home screen choose Maint Wizard...

Page 186: ... the display module Step 5 Install the new display module in reverse order Step 6 Install cables for the display module Step 7 After the cables are reconnected the home screen is displayed on the display module Check whether the display is normal End 6 4 5 Replacing a Differential Pressure Switch Context Tool Phillips screwdriver Procedure Step 1 Tap Shutdown on the home screen of the display modu...

Page 187: ...it Step 5 Remove the screw from the differential pressure switch cover and take out the cable 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product...

Page 188: ...rly Then exit the diagnostics mode End 6 4 6 Replacing a Wet Film Humidifier Context Tool Phillips screwdriver 6 4 6 1 Replacing a Wet Film Humidifier for an Upflow Model Procedure Step 1 Choose Settings System Settings System Control and set Humidifying function to Disable Step 2 Open the cabinet front door Step 3 Remove the wet film humidifier 1 Cut off the cable tie on the humidifier water inle...

Page 189: ...e 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 6 2 Replacing a Wet Film Humidifier for a Downflow Model Procedure Step 1 Choose Settings System Settings System Control and set Humidifying function to Disable Step 2 Open the cabinet front door Step 3 Remove the wet film ...

Page 190: ...ve 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 180...

Page 191: ... wet film humidifier to check that it works properly before you exit Step 6 On the home screen choose Maint Performance Maint to enter the 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 N...

Page 192: ...r using a small sized flat head screwdriver and cut off the cable ties of the actuator to ensure that the actuator cables are separated from the unit Step 5 Remove the chilled water valve actuator 1 Pull out the actuator handle upwards as shown by 1 in Figure 6 26 Figure 6 26 Removing the chilled water valve actuator 2 Insert the hex key on the handle into the hole on the front of the actuator as ...

Page 193: ...body with the hole in the water valve mounting kit attach the connecting plate to the screw on the left secure the water valve using the handle and reinstall the handle Figure 6 28 Installing an actuator 1 Valve body 2 Actuator 3 Connecting plate 4 Actuator handle NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07 2021 12 30 Copyright Huawei Tec...

Page 194: ...a PSU and provides a reference for replacing a main control module The new PSU must be installed in the same slot of the faulty PSU Otherwise the smart cooling product may fail to work properly Procedure Step 1 Tap Shutdown on the home screen of the display module NOTICE Exercise caution because the device is still energized after it is shut down on the screen of the display module Step 2 Open the...

Page 195: ...hen 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 185 ...

Page 196: ...QF1 and standby power switch QF2 Step 3 Turn off the water injection valve of the inlet solenoid valve Step 4 Unplug the cable terminals YV4 1 and YV4 2 Step 5 Use the Phillips screwdriver to remove the 2 fastening screws of the sheet metal Take out the 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 t...

Page 197: ... down on the screen of the display module 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 187 ...

Page 198: ...or 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 6 Maintenance Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 188 ...

Page 199: ...s of the hardware port Start Shutdown If the equipment is shut down issue a start command to start the equipment 1 Check that the remote start shutdown signal status of the hardware port is start 2 Set the start shutdown signal to start on the unit LCD or NetEco WebUI Start Start NOTE For shutdown commands the remote start shutdown signal of the hardware port has the highest priority and that of t...

Page 200: ...e Maint Query Logs to 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 NOTE The log query screen displays logs of LCD user operations including user login and setting change records NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual 7 FAQ Issue 07 2021 12 30 Copyright Huawei Te...

Page 201: ...he FAT32 format using a computer Before using a USB flash drive ensure that its data has been scanned by antivirus software and is secure Procedure Step 1 Connect a USB flash drive Figure 7 5 Connecting to a USB flash drive Step 2 Check that is displayed in the status bar of the home screen indicating that the USB flash drive is successfully identified Step 3 Select an operation in USB Operations ...

Page 202: ...t USB Operations Export to enter the Select Path screen Figure 7 7 Select Path Step 2 On the Select Path screen specify the save path and tap Next In the displayed dialog box tap Yes 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 NetCol8000 C 070 130 190 In room Chilled Water ...

Page 203: ... 7 8 Select Path screen Step 2 On the Select Path screen specify the save path and tap Next In the displayed dialog box tap Yes 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 Step 5 On the home screen of unit 2 choose Maint USB Operations Import Config Figure 7 9 Selecting a file ...

Page 204: ...End 7 3 3 How Do I Import a Certificate and Key Prerequisites The CA certificate file local certificate file and key file have been saved in a USB flash drive NOTICE 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 NetCol8000 C 070 130 190 In room Chilled Water Sm...

Page 205: ...ameters If the teamwork networking mode is FE networking set the LAN parameters based on the actual situation Procedure Step 1 On the home screen choose Settings Comm Settings LAN IP Settings and set LAN IP assigning mode to Manual Set LAN IP address LAN subnet mask and LAN gateway based on the actual plan Figure 7 12 LAN IP Settings NOTE If the LAN IP address of the unit has not been changed the ...

Page 206: ...y curves show the current average temperature and humidity of the control point You can tap or to zoom in or out the range of the temperature and humidity ordinate The midpoint temperature and humidity are the temperature and humidity setpoints after the ordinate range is zoomed in or out The temperature display range is from 3 C to 30 C of the temperature setpoint The humidity display range is fr...

Page 207: ...ws the screen displayed after choosing Running Status Summary View on Equip Details The following describes how to view the status of a T H sensor On the home screen choose Running Equip Details T H Sensor End 7 4 5 How Do I View System Parameters Procedure On the home screen choose Common Function Operating Info The Operating Info screen is displayed On the home screen choose Running System Overv...

Page 208: ...ot show the information of these T H boards End 7 4 7 How to View Teamwork Control Information Procedure Step 1 On the home screen choose The teamwork control information is displayed NOTE Master Slave flag indicates the information of this single unit Other information is about the teamwork control information of the group End 7 4 8 How Do I Mute the Buzzer Context After a buzzer is muted it does...

Page 209: ...ly cleared after the fault is rectified If the icon is displayed on the Details screen it indicates that the alarm can be cleared manually You need to tap Clear to clear the alarm after the fault is rectified The alarm clearance type automatic or manual varies with smart cooling products Some of the alarms can either be cleared automatically or manually Perform operations as required Step 3 Tap Fa...

Page 210: ...re or humidity on the sensor deviates from the actual value For example if the return air temperature measured by other temperature detection devices at the return air detection point is 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 Procedure Step 1 On the home screen choose Maint Sensor Calibration Step 2 Fill the...

Page 211: ...ccess the password change screen and change the password End 7 4 13 How to Set Alarm Parameters Context To set an alarm threshold follow the instructions in this section The method for setting each alarm is the same This section describes how to set Threshold of Supply air high temperature alarm to 45 If you need to change alarm settings log in as the Admin user NOTICE Be careful when configuring ...

Page 212: ...tic mode screen you can turn on or off components and control their output ratio 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 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Man...

Page 213: ... heater is turned on the indoor fans will turn on automatically When the electrode humidifier is turned on the indoor fans and inlet water solenoid valve will start automatically When the input value of the indoor fan is less than the minimum speed the indoor fan will run at the minimum speed Step 3 Check that the indoor fans run properly and no alarm generates Step 4 Choose Maint Diagnostic Mode ...

Page 214: ...creen The version in use may vary Procedure Step 1 Check whether strong electric interference exists around the smart cooling product backplane If yes contact technical support If no continue with Step 2 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 NetCol8000 C 070 130...

Page 215: ...eer account Operator Compared with the administrator this role has no rights for network security certification Modbus SNMP software upgrade and fault information There is no default user name If necessary add an operator account Procedure Step 1 Change the login password 1 Log in to the WebUI as an administrator 2 Choose Maintenance User Management The user management page is displayed 3 Choose t...

Page 216: ...nd the notification mode is configured the following functions can be implemented 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 4 Enter Login user password and click Submit NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product Us...

Page 217: ...omer for a network security certificate and its key with the IP address or domain name This section describes how to import the certificate and key Procedure Step 1 Log in to the WebUI as an administrator Step 2 Upload a network security certificate 1 Choose System Settings Network Security Cert 2 Select a certificate format from the drop down list box 3 Select the network security certificate to ...

Page 218: ...to the WebUI of unit 2 as an administrator 2 Choose Maintenance Configuration File 3 Specify Configuration File Decryption Password 4 Click Select a file next to Import A New Configuration File 5 Select the configuration file to be imported and click Upload End 7 5 5 How Do I Export Fault Information Procedure Step 1 Log in to the WebUI of the unit as an administrator Step 2 Choose Maintenance Fau...

Page 219: ...gs IP Address and change the IP address subnet mask and default gateway information for the unit as planned Step 3 Click Submit End 7 5 7 How Do I View Version Information Procedure Step 1 Log in to the WebUI as an administrator Step 2 Click in the upper right corner of the home page and view the version information Step 3 Choose Maintenance Version Information and view the version information sof...

Page 220: ...ld be mixed into the glycol solution For details about the mixing schemes consult glycol experts Check the quality of the glycol solution on a quarterly basis and evaluate the anticorrosion effects For details consult local water treatment experts Table A 1 Glycol concentration requirements at lowest temperatures Lowest Recorded Local Temperature Glycol Volume Concentration Freezing Point of Glyco...

Page 221: ...Ports B 1 NetCol8000 C070U Figure B 1 Physical ports NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual B Physical Ports Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 211 ...

Page 222: ...2 NetCol8000 C130U Figure B 2 Physical ports NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual B Physical Ports Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 212 ...

Page 223: ...00 C190U Figure B 3 Physical ports B 4 NetCol8000 C070D NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual B Physical Ports Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 213 ...

Page 224: ...gure B 4 Physical ports B 5 NetCol8000 C130D NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual B Physical Ports Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 214 ...

Page 225: ...Figure B 5 Physical ports NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual B Physical Ports Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 215 ...

Page 226: ...6 NetCol8000 C190D Figure B 6 Physical ports NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual B Physical Ports Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 216 ...

Page 227: ...ns C 1 NetCol8000 C070U Figure C 1 Base drawing unit mm NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual C Base Dimensions Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 217 ...

Page 228: ...etCol8000 C130U Figure C 2 Base drawing unit mm NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual C Base Dimensions Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 218 ...

Page 229: ...etCol8000 C190U Figure C 3 Base drawing unit mm NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual C Base Dimensions Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 219 ...

Page 230: ...etCol8000 C070D Figure C 4 Base drawing unit mm NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual C Base Dimensions Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 220 ...

Page 231: ...etCol8000 C130D Figure C 5 Base drawing unit mm NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual C Base Dimensions Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 221 ...

Page 232: ...etCol8000 C190D Figure C 6 Base drawing unit mm NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual C Base Dimensions Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 222 ...

Page 233: ...ical Diagrams Figure D 1 Electrical diagram 1 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 223 ...

Page 234: ...Figure D 2 Electrical diagram 2 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 224 ...

Page 235: ...an External Water Valve Actuator Figure D 3 Electrical diagram 1 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 225 ...

Page 236: ...Figure D 4 Electrical diagram 2 NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual D Electrical Diagrams Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 226 ...

Page 237: ...module Consistent with the local time zone Time Specifies the time displayed on the display module Consistent with the local time Password Changes the password of the current user LCD backlight off delay Sets the time of no operation after which the display module backlight turns off 3min Key lifecycle Specifies the key lifecycle 180Day Settings Alarm Settings T H sensor Supply air high temperatur...

Page 238: ...erature alarm An alarm is generated when the system detects that the value exceeds the corresponding threshold 10 0 C Hot aisle high temperature alarm An alarm is generated when the system detects that the value exceeds the corresponding threshold 45 0 C Hot aisle low temperature alarm An alarm is generated when the system detects that the value exceeds the corresponding threshold 15 0 C High humi...

Page 239: ...mplemented Enable Settings Alarm Settings Chilled water valve Supply water temperature sensor alarm Enable Alarms are reported to the NMS 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 Enable Supply water high temperature alarm An alarm is generated when the system detect...

Page 240: ...and the system performs related protection actions Disable Alarms are not reported and no protection actions are implemented Enable Settings Alarm Settings Indoor fan Settings Alarm Settings Humidifier Humidifier exceed runtime alarm Enable Alarms are reported to the NMS Active alarms are displayed on the display module and the system performs related protection actions Disable Alarms are not repo...

Page 241: ...o protection actions are implemented Enable Teamwork networking abnormal alarm Enable Alarms are reported to the NMS 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 Enable Teamwork function abnormal alarm Enable Alarms are reported to the NMS Active alarms are displayed on...

Page 242: ...ference pressure sensor type The default setting is none Select the proper differential pressure sensor type based on the measurement range of the differential pressure sensor Motorized damper This parameter can be set to Enable or Disable The default setting is Disable NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual E Parameter Description Issue 07 2021 12 30 Copy...

Page 243: ...eeds to be enabled Select Disable when a direct free cooling plenum is configured but need not be enabled Temperature and humidity control type Cold aisle Hot aisle Return air or Supply air can be set as required The temperature and humidity set points correspond to the selected control type can be set Supply air Temperature setpoint After the temperature and humidity control type and the temperat...

Page 244: ...isle sensor The sensors in hot aisles can be set to Enable or Disable Disable Heating function If Enable is selected the electric heater can be started when the ambient temperature is lower than the temperature setpoint by a certain range If Disable is selected the heating function is disabled If Enabled when active power is selected the electric heater can be started only when the active power su...

Page 245: ... on the temperature requirements when the dehumidification and heating conditions are met Dehumid low temp heat Humidifying function If Enable is selected the device starts humidifying when the ambient humidity is lower than the humidity setpoint by a certain range If Disable is selected the humidifying function is disabled If Enabled when active power is selected the device starts humidifying whe...

Page 246: ...r water overflow alarm is generated the common alarm 1 dry contact is closed Common alarm 2 does not work Critical Major alarm When a critical alarm is generated the common alarm 1 dry contact is closed When a major alarm is generated the common alarm 2 dry contact is closed No The common alarm 1 and 2 dry contacts are open and no alarms are reported Smoke Water only Settings System Settings Syste...

Page 247: ...If Dehumidifying heating is selected the electric heater determines whether to start based on the current temperature only when the dehumidification function is enabled If Low temperature heating is selected the electric heater is started only based on temperature requirements regardless of whether the dehumidification function is enabled If Dehumid low temp heat is selected the electric heater de...

Page 248: ... Enable the device starts dehumidification when the ambient humidity is higher than the preset humidity threshold for a certain range If this parameter is set to Disable the device does not start dehumidification If this parameter is set to Enabled when active power the device starts dehumidification when the ambient humidity is higher than the preset humidity threshold for a certain range and whe...

Page 249: ...rm is generated the common alarm 1 dry contact is closed When a major alarm is generated the common alarm 2 dry contact is closed No The common alarm 1 and 2 dry contacts are open and no alarms are reported Smoke Water only Cooling capacity management function The cooling capacity management function can be set to Enable or Disable Disable Floor water overflow alarm action Shutdown Inactivity Only...

Page 250: ... or heating based on the settings 22 0 C Humidity setpoint After the temperature and humidity control type and the humidity value under this type are set the device performs humidifying or dehumidifying based on the settings 50 0 RH Return air sensor The return air sensors can be set to Enable or Disable Disable Cold aisle sensor The sensors in cold aisles can be set to Enable or Disable Disable H...

Page 251: ... set to Enable or Disable Disable Direct free cooling Set the parameters for the direct free cooling plenum based on the actual configurations of the customer s direct free cooling module onsite and the enabling and disabling requirements of the direct free cooling function There is no direct free cooling function by default Select No when no direct free cooling plenum is configured Select Enable ...

Page 252: ...0h Return air filter total runtime Total runtime of the return air filter 0h Fresh air filter total runtime Total runtime of the fresh air filter 0h Maint Sensor Calibration Supply air temperature calibration value Specifies the adjustment value of each sensor when the detected temperature or humidity varies from the practical value For example if the detected return air temperature is 1 C lower t...

Page 253: ... CAN controller area network D DC direct current E EC electronic commutation F FE fast Ethernet I IP Internet Protocol NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual F Acronyms and Abbreviations Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 243 ...

Page 254: ...computer PTC positive temperature coefficient R RCCB residual current circuit breaker U USB Universal Serial Bus NetCol8000 C 070 130 190 In room Chilled Water Smart Cooling Product User Manual F Acronyms and Abbreviations Issue 07 2021 12 30 Copyright Huawei Technologies Co Ltd 244 ...

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