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Advanced Cooling Controller
User Manual

3 Power-on Commissioning

Issue Draft A (2014-12-26)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

21

Before using a USB flash drive, ensure that its data has been scanned by antivirus software
and is secure.

Figure 3-18

Exporting a MIB file successfully

3.2.9 Setting Teamwork Control Parameters

Prerequisites

To network the chilled water in-room precision air conditioner whose controller software
version is V100R001C20 and chilled water in-room precision air conditioner whose controller
software version is V100R001C00 or V100R001C10 in a teamwork, upgrade the software
version V100R001C00 or V100R001C10 to V100R001C20 first. For details about how to
view the software version of the controller, see

4.1.7 Querying Version Details

. For details

about how to upgrade the software version, see the software upgrade guide.

Assign teamwork group number and teamwork unit address for the teamwork controlled
precision air conditioners as follows:



Teamwork group no.: Group the precision air conditioners in adjacent areas as one, that
is, assign one teamwork control number for them. At most four teamwork control groups
can be assigned (1–4).



Teamwork unit address: The address for the precision air conditioner in the same group
cannot be the same (address range: 1–32). The precision air conditioner addressed 1 is
the master one that collects, processes, and delivers data. Set the unit address numbers
from one to the

Total number of units

in this group. If the address of a device exceeds

the range, the device cannot enter the teamwork control. If the address of any unit amid
the range is unavailable, the teamwork topology shows that this device is offline.

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Summary of Contents for V100R001C50

Page 1: ...Advanced Cooling Controller V100R001C50 User Manual Issue Draft A Date 2014 12 26 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...uawei and the customer All or part of the products services and features described in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this documen...

Page 3: ...n this document that display specific operation steps are based on those of the 35 kW NetCol5000 A and for reference only The figures correspond to software version ACC V100R001C50B515 If any changes of the figures are made contact Huawei technical support to obtain the latest figures The models of precision air conditioners included in this document are as follows NetCol5000 A air cooled in row p...

Page 4: ...lly hazardous situation which if not avoided may result in minor or moderate injury Indicates a potentially hazardous situation which if not avoided could result in equipment damage data loss performance deterioration or unanticipated results NOTICE is used to address practices not related to personal injury Calls attention to important information best practices and tips NOTE is used to address i...

Page 5: ... 3 Setting the Temperature 10 3 2 4 Setting Humidity Values 11 3 2 5 Setting Temperature and Humidity Values 12 3 2 6 Setting Communications Parameters IP Address Settings 14 3 2 7 Setting Communications Parameters ModBus Settings 14 3 2 8 Setting SNMP Parameters 16 3 2 9 Setting Teamwork Control Parameters 21 3 2 10 Optional Setting Alarm Parameters 26 3 3 Commissioning Guide 28 3 3 1 Entering Di...

Page 6: ...How to Set the Language Date or Time 45 5 3 How to Change a Password 46 5 4 How to Restore the Initial Password 47 5 5 How to Troubleshoot the Fault When the System Is in Upgrade Mode 49 5 6 How to Fast Shut Down an Air Conditioner 49 5 7 How to Manually Clear Alarms 50 5 8 How to Enable a Humidity and Temperature Sensor 50 5 9 How to Check Teamwork Control Information 51 5 10 Which Parameters Are...

Page 7: ... on the panel displays operating status of the precision air conditioner Figure 1 1 shows the location of the indicator Table 1 1 lists the relationship of the alarm status indicator and buzzer If critical alarms major alarms and warning alarms are generated simultaneously the indicator and buzzer show the status of the alarm with the highest severity level Figure 1 1 Location of the indicator 1 I...

Page 8: ...d Beeping continuously 1 2 Controller Ports Figure 1 2 shows the ports on the two sides of the controller Figure 1 2 Ports on the controller sides 1 Communications port for the main control board and LCD 2 Dual in line package DIP switch on LCDa 3 USB port a The first toggle switch DIP status is ON and the second third fourth toggle switch DIP status are non ON 1 3 Operating Environment Parameter ...

Page 9: ...vironment parameter Parameter Specification Net weight 0 86 kg Touch screen type Resistive touch screen Rated input voltage 12 V DC Input voltage range 9 14 V DC Working temperature 20 C to 60 C Storage temperature 40 C to 85 C Relative humidity 0 95 RH non condensing Altitude 0 2000 m working temperature decreased by 1 C when the altitude increases for every 200 m maximum 4000 m ...

Page 10: ... Running Alarms and Settings The controller main screen is shown in Figure 2 1 Figure 2 1 Home screen Table 2 1 Note for the page No Items Note 1 Communication status between the display panel and the main control board in the status bar indicates that the display panel communicates properly with the main control board If is displayed in this position in the status bar the communication fails 2 US...

Page 11: ... be muted even if you tap is changed to after the buzzer is muted 5 The current critical alarm signals and their quantity refers to the current critical alarm signals and their quantity 6 The current major alarm signals and their quantity refers to the current major alarm signals and their quantity 7 The current warning signals and their quantity refers to the current warning alarm signals and the...

Page 12: ...uirements of the precision air conditioner Running Checks the component status system parameters and the name control and operating status and other related information of the components in the current precision air conditioning system Alarms Checks the active and historical alarms of the precision air conditioner and deletes the historical alarms Settings Sets the involved parameters for the oper...

Page 13: ... After the system is powered on the LCD is started and the progress bar in the startup screen is full For initial power on the system enters the quick setting screen Set the parameters by following the instructions in this section For non initial power on the LCD automatically enters the home screen as shown in Figure 2 1 Procedure Step 1 Set the language and tap Next as shown by 1 in Figure 3 1 F...

Page 14: ... controller and periodically update the certificate and key For details about how to import a certificate and key see 5 13 Importing a Certificate and Key 3 2 1 User Right Authentication To enhance security before a user attempts to perform setting and maintenance operations the user needs to enter the user name and password for right authentication Figure 3 2 shows the setting login screen for an...

Page 15: ...tdown on the home screen A warning is displayed indicating whether to start or shut down the precision air conditioner as shown in Figure 3 3 Tap Yes If the device is successfully started or shut the system displays a message indicating that the command is successfully triggered Figure 3 3 Start and shutdown If a power failure occurs and the precision air conditioner is powered on again the precis...

Page 16: ... displayed Figure 3 4 Setting the temperature Step 2 Set the parameters by referring to Table 3 1 You are not recommended to modify the parameters not listed in Table 3 1 Table 3 1 Parameter description Parameter Description Configuration Principle Temp set point Indicates the temperature required in a room or aisle The precision air conditioner performs the cooling or heating based on the value T...

Page 17: ...3 2 You are not recommended to modify the parameters not listed in Table 3 2 Table 3 2 Parameter description Parameter Description Configuration Principle Humid control mode Two humidity control modes are available including relative humidity control and absolute humidity control Set the parameter as required You are recommended to set the value to relative humidity Humid set point Indicates the h...

Page 18: ...nd 3 log in as the Admin or Engineer user To set other parameters log in as the Admin Engineer or Operator user Procedure Step 1 On the home screen choose Settings System Settings T H Sensor Figure 3 6 is displayed Figure 3 6 Setting temperature and humidity values Step 2 Set the parameters by referring to Table 3 3 You are not recommended to modify the parameters not listed in Table 3 3 Table 3 3...

Page 19: ...led based on the averaged data value collected by the collector Maximum Select Maximum if the temperature is to be controlled based on the maximum data value collected by the collector Minimum Select Minimum if the temperature is to be controlled based on the minimum data value collected by the collector Supply air temp set point Supply air humid set point Sets the required humidity and temperatur...

Page 20: ...layed Figure 3 7 Setting the IP address subnet mask and gateway address Step 2 Set the parameters by referring to Table 3 4 Table 3 4 IP address settings Parameter Setting Method IP address Set according to the actual plan Subnet mask Set according to the actual plan Gateway Set according to the actual plan End 3 2 7 Setting Communications Parameters ModBus Settings Context To set communications p...

Page 21: ...dbus RTU Modbus TCP Modbus RTU If a precision air conditioner needs to connect to an EMS using an RS485 cable set Protocol to Modbus RTU Modbus TCP If a precision air conditioner needs to connect to an EMS through an IP address network set Protocol to Modbus TCP Baud rate 9600 19200 Set the baud rate as required The value should be consistent with that at the EMS side This parameter is configurabl...

Page 22: ...ection mode is set to Client EMS port It is recommended that you retain the default value 16100 If you need to change the value enter a value as required This parameter is configurable when Connection mode is set to Client End 3 2 8 Setting SNMP Parameters Context To set communications parameters log in as the Admin or Engineer user This section is suitable only for SNMP Skip this section if you u...

Page 23: ...tructions provided in Step 3 If you set SNMP Version to ALL or SNMP V3 you can add SNMP V3 users by performing Step 4 Step 3 Set Read Community and Write Community 1 Click the text box after Read Community as shown in Figure 3 10 Set Read Community as planned click and then click Submit Figure 3 10 Setting read community 2 Click the text box after Write Community as shown in Figure 3 11 Set Write ...

Page 24: ...s of an authentication protocol and proprietary protocol must comply with the following policies The password must consist of 8 15 characters and contain at least two types of characters among uppercase letters A Z lowercase letters a z and digits 0 9 A password must be different from the corresponding user name or inverted user name A password must not be a string containing duplicate sections su...

Page 25: ... 14 Setting anAES password 5 Click Submit Step 5 Click the text box after SNMP Port as shown in Figure 3 15 Set SNMP Port to the actual port number click and then click Submit Figure 3 15 Setting SNMP port SNMP Port is set to 161 by default If you modify SNMP Port and click Submit a warning is displayed saying that the monitoring system will restart as shown in Figure 3 16 ...

Page 26: ...ress as planned and Trap Port to the actual port number and then click as shown in Figure 3 17 Figure 3 17 Setting SNMP trap parameters Trap Port is set to 162 by default 3 Click Submit under SNMP Trap End Follow up Procedure After a USB flash drive has been inserted into the controller USB port and successfully identified click Export File under MIB File to export the MIB file to the USB flash dr...

Page 27: ... controller see 4 1 7 Querying Version Details For details about how to upgrade the software version see the software upgrade guide Assign teamwork group number and teamwork unit address for the teamwork controlled precision air conditioners as follows Teamwork group no Group the precision air conditioners in adjacent areas as one that is assign one teamwork control number for them At most four te...

Page 28: ...but only Teamwork group no Teamwork unit address and Teamwork function on a slave air conditioner Table 3 6 describes how to set the parameters Table 3 6 Teamwork settings Parameter Description Configuration Principle Default Value Teamwork group no The number of the teamwork controlled group which is the same for all the devices in the group Set the assigned teamwork control number 1 Teamwork uni...

Page 29: ...ess 1 until to Number of running units The rest will become the standby ones 2 Rotation Disable or enable the active and standby precision air conditioners to change identity after a certain time maximizing their service life This function is recommended when the heat is even Disabled Rotation period Rotation days 1 30 7 by default 7 day s Rotation time 24 hours in a day 0 23 0 by default 0 Forced...

Page 30: ...t referring to the mode delivered by the master device humidity control type and temperature and humidity set point of units are the same and device heat loads are distributed evenly Cascade After the requirement control is enabled you can configure Cascade The cascade function starts standby precision air conditioners if the active one cannot meet the refrigerating requirements If the heat load t...

Page 31: ...vice address 01 is the master one and the rest are all slave ones NOTE If the master one offline the teamwork networking failed 3 Active Standby Active properly responds to the requirement control Standby responds to the requirement control when Active is faulty critical alarms shutdown and offline or Active cannot meet cooling requirements 4 Frame green non green A device with green frame indicat...

Page 32: ...e cable connection and the settings of teamwork control parameters 3 Check whether the number of standby devices on the topology is the same as the actual device number If yes go to 4 If no check the cable connection and the settings of teamwork control parameters 4 Check whether the number of online devices on the topology is the same as the actual device number If yes the check is complete If no...

Page 33: ...ld aisle LT alarm threshold 5 C Hot aisle LT alarm threshold Cold aisle LT alarm threshold 5 C Return air LT alarm threshold Context The content described in this section is optional To set whether to report an alarm or set the time delay duration or threshold follow the instructions in this section The enabling functions include the following three choices Allow Alarms are reported to the EMS Act...

Page 34: ...shown in Figure 3 22 Figure 3 22 Setting alarm parameter 2 End 3 3 Commissioning Guide 3 3 1 Entering Diagnostic Mode Context On the diagnostic 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 log in as the Admin or Engineer user Ensure that the precision air conditioner is started before operat...

Page 35: ...stem automatically exits diagnostic mode when it reaches the maximum diagnostic mode duration End 3 3 2 Commissioning Air Conditioner Components Context For safe system operation when air conditioner components are started the following coupling relationships are presented When the compressor including fixed frequency and frequency converting is started the indoor fans outdoor fans and the liquid ...

Page 36: ...et see the commissioning chapter in the user manual of each precision air conditioner This chapter describes how to commission air conditioner components using the electric heater as an example Procedure Step 1 Enter diagnostic mode Step 2 Tap On for Electric heater as shown in Figure 3 24 Figure 3 24 Starting up the electric heater After the electric heater is started the Off following the Electr...

Page 37: ...u can choose to display the curves showing data changes of recent one hour one day seven days or 30 days Procedure Step 1 On the home screen tap T H Curve Figure 4 1 is displayed Figure 4 1 T H curve screen The temperature curve upper and the humidity curve lower are displayed on the same screen The abscissa shows time The temperature set point is the midpoint temperature on the upper ordinate whi...

Page 38: ...r conditioners End 4 1 2 Querying Alarms Context On the alarm querying screen you can query active alarms and historical alarms The active alarm screen displays active alarms The historical alarm screen displays the historical alarms You can query historical alarms by choosing Common Functions Query Hist Alarms or Alarms Query Hist Alarms Procedure To query the active alarm choose Alarms Query Act...

Page 39: ...r button after the fault is rectified The alarm clearance type automatic or manual varies with precision air conditioners Some of the alarms can either be cleared automatically or manually Perform operations as required For details about how to manually clear an alarm see 5 7 How to Manually Clear Alarms To query historical alarms choose Common Functions Query Hist Alarms or Alarms Query Hist Alar...

Page 40: ...ance and technical service engineers can query logs to locate operations on the system To query logs log in as the Admin Engineer or Operator user Procedure Step 1 On the home screen choose Maint Log Maint Query Logs Figure 4 5 is displayed Figure 4 5 Query logs screen End 4 1 4 Querying Device Runtime Procedure Step 1 On the home screen choose Maint Performance Maint Figure 4 6 is displayed Figur...

Page 41: ...nent All parameters for the component are displayed Procedure When viewing the component status through Status choose Common Functions Status or Running Status on the home screen The general component status screen is displayed Figure 4 7 shows the screen displayed after choosing Running Status Figure 4 7 General status The actual number of devices is displayed on the screen If two indoor fans are...

Page 42: ... power frequency Enter the Device Details screen and then enter the menu of a specific component All parameters for the component are displayed Procedure When querying system parameters through Operating Info choose Common Functions Operating Info or Running Operating Info on the home screen the related screen is displayed Figure 4 9 shows the screen displayed after choosing Running Operating Info...

Page 43: ...opyright Huawei Technologies Co Ltd 37 Figure 4 10 Compressor parameters End 4 1 7 Querying Version Details Procedure Step 1 On the home screen select About Figure 4 11 is displayed Figure 4 11 About screen Step 2 On the About screen tap Version Info or E label Figure 4 12 is displayed Figure 4 12 Version info and E label ...

Page 44: ...n Info screen or T H Board on the About E label screen shows the information of these T H boards When some T H boards of the cold or hot aisles are disabled T H Board on the About Version Info screen or T H Board on the About E label screen does not show the information of these T H boards End 4 2 Changing Parameters 4 2 1 Deleting Historical Alarms Context To delete historical alarms log in as th...

Page 45: ...n Procedure Step 1 On the home screen choose Maint Log Maint Delete Logs Yes to delete all the logs After logs are deleted the log deletion operation is recorded in the first log that is displayed End 4 2 3 Exporting Data Context Active alarms historical alarms logs configurations and run logs can be exported The export method for the five data is the same This section uses how to exporting active...

Page 46: ... the USB port is shown in Figure 1 2 If the USB flash drive has been successfully identified is displayed at the status bar If the USB flash drive is not properly connected the system will notify that the USB flash drive is not detected Procedure Step 1 Tap Maint USB Operations Export Act Alarms to enter the Select Path screen as shown in Figure 4 14 Figure 4 14 Select path Step 2 Tap the file whe...

Page 47: ...4 17 is displayed Click OK Figure 4 17 Screen showing that data export has succeeded Step 4 Click Maint USB Operations Remove USB to remove the USB flash drive in safe mode End 4 2 4 Clearing the Runtime Context To clear the runtime of the precision air conditioner log in as the Admin or Engineer user Performance value clearance can be performed only after component maintenance Otherwise the compo...

Page 48: ... 5 Calibrating a Sensor Context Calibrate a sensor if the displayed temperature 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 To cal...

Page 49: ... switch The display board works normally the deviation between the touching point and the responding point is unfavorably big or the screen does not respond when being tapped To calibrate the touchscreen log in as the Admin or Engineer user You can calibrate the screen by DIP switch only when the system enters Quick Settings page after the first power on or when the system is on the home screen To...

Page 50: ...and others remain unchanged the screen calibration function is triggered After 15 seconds a dialog box indicating Are you sure you want to calibrate the screen If you do not click Yes or No calibration will start automatically 10 seconds later is displayed as shown in Figure 4 22 Figure 4 22 Confirming to calibrate the screen 3 Wait for 10s or tap Yes Figure 4 20 is displayed Tap the screen When F...

Page 51: ... other scenarios log in as the Admin Engineer or Operator user Procedure Step 1 Choose Settings Quick Settings on the home screen The quick settings screen is displayed as shown by 1 2 and 3 in Figure 3 1 End 5 2 How to Set the Language Date or Time Context Enter the User Settings screen to set the Language Date or Time You can also set Time zone Password LCD contrast LCD saturation and LCD bright...

Page 52: ...erequisites To change a password log in as the Admin Engineer or Operator user You can only change the password of the current user Procedure Step 1 On the home screen choose Settings User Settings to enter the User Settings screen as shown in Figure 5 2 Figure 5 2 User settings screen Step 2 Tap Password to enter the password changing screen as shown in Figure 5 3 The password consists of six dig...

Page 53: ...7 Figure 5 3 Changing the password If you forget the password restore the initial password by referring to 5 4 How to Restore the Initial Password End 5 4 How to Restore the Initial Password Context If a user forgets the changed password the user can use the DIP switch S2 on the main control board to restore the password to the initial password ...

Page 54: ... Step 1 Disconnect the main power supply of the device Step 2 Set bits 1 and 3 of the DIP switch S2 to ON and other bits to non ON Figure 5 4 shows positions of DIP switches on the main control board Figure 5 4 DIP switch position 1 Teamwork communication 1 2 2 J127 FE port reserved 3 DIP switch S1 of the main control board 4 DIP switch S2 of the main control board Step 3 Connect the main power su...

Page 55: ... circumstances The unit model is NetCol5000 A and the monitoring version is V100R001C00B255 The unit model is NetCol5000 A and the monitoring version is V100R001C00B256 The unit model is NetCol5000 C and the monitoring version is V100R001C01B121 Procedure Step 1 After you have entered the home screen choose Maint USB Operations Software Upgrade and check whether you can perform the upgrade If yes ...

Page 56: ...witch lock alarm as an example to describe how to manually clear alarms on the NetCol5000 A If you need to manually clear alarms log in as the Admin or Engineer user Procedure Step 1 Tap Alarms Query Act Alarms Comp HP lock on the home screen The alarm information is displayed as shown in Figure 5 5 Figure 5 5 Manually clearing the alarm Step 2 Tap Clear a dialog box for confirming clearance is di...

Page 57: ...he value following Cold aisle sensor 1 and Cold aisle sensor 2 to Enable as shown in Figure 5 6 Figure 5 6 Enabling a humidity and temperature sensor End 5 9 How to Check Teamwork Control Information Procedure Step 1 On the home screen choose The teamwork control information is displayed as shown in Figure 5 7 Figure 5 7 Teamwork control information screen Master Slave and Active Standby indicate ...

Page 58: ...e Restored to Default Values After Default Settings Are Operated After choosing Settings Restore Defaults Yes the following parameters are displayed All parameters displayed on Settings System Settings All parameters displayed on Settings Alarm Settings All parameters displayed on Settings Comm Settings Date format and time zone settings displayed on Settings User Settings All parameters displayed...

Page 59: ...ons Otherwise the controller cannot work properly Except for password changes operations resulting in controller faults are beyond the warranty scope Remember the new password When Windows accesses the controller over SSH you need to use client software such as PuTTY Procedure Step 1 Access the controller over SSH The login window is displayed as shown in Figure 5 8 Figure 5 8 Login window Step 2 ...

Page 60: ...rements Contains at least eight characters Contains at least two types of characters lowercase letter uppercase letter digit space and special character _ Be different from the user name or user name in its inverted order If a user enters incorrect passwords for five times the user s account will be locked for 5 minutes Step 3 After your successful login enter the passwd command to change the pass...

Page 61: ...nging the password you can press Ctrl C to stop this operation End 5 12 Rectifying Faults of the E label Identification Board Context If strong electromagnetic interference exists the E label identification board is abnormal or the E label identification board is not properly connected an exception may occur during E label identification If the information shown in Figure 5 11 is displayed on the ...

Page 62: ...ribe the WebUI prompt messages During actual operations the version in use prevails Procedure Step 1 Check whether strong electromagnetic interference exists around the E label identification board If yes contact Huawei technical support If no continue with Step 2 Step 2 Disconnect the main power supply of the precision air conditioner Step 3 Check whether the E label identification board is prope...

Page 63: ...ile into a USB disk that is connected to the USB controller port shown in Figure 1 2 and has been recognized Ensure that the key file has been encrypted using AES128 Before using a USB flash drive ensure that its data has been scanned by antivirus software and is secure Procedure Step 1 On the home page choose Maint USB Operations Import Certificate as shown in Figure 5 13 Figure 5 13 Import certi...

Page 64: ...Advanced Cooling Controller User Manual 5 FAQ Issue Draft A 2014 12 26 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 58 End ...

Page 65: ...ed by compressor The actual number of a component displayed on the relevant screen prevails Table A 1 Parameter description Menu Parameter Description Default Value Home Screen Settings User Settings Language Sets the interface language to Chinese or English Consistent with the current interface language Date format Sets the date display format for the ACC Consistent with the current interface dat...

Page 66: ...ets the protocol for the communication between element management system EMS Modbus RTU Baud rate The baud rate for the communication between the precision air conditioner and the EMS can be set to 9600 and 19200 The value should be consistent with that at the EMS side 9600 Comm address Sets the address for the communication between the precision air conditioner and the EMS 1 Connection mode Sets ...

Page 67: ...ingle mode Unit startup delay Sets the time delay for starting or re powering on a precision air conditioner avoiding large electric shocks when the precision air conditioner is started with other devices 10s Energy saving mode Sets the fans to rotate at a low speed when there is no requirement Off Alternate work duration Sets the alternative working duration for the two modules in a dual module u...

Page 68: ...heat Humid Enable indicates that the electric humidifier will be started when the ambient humidity is lower than the certain humidity range of the humidity set point Disable indicates that the electric humidifier will not be started Enable Humid mode Sets the starting mode of the humidifier Cooling and humid Dehumid Enable indicates that the dehumidification function will be enabled when the ambie...

Page 69: ...ting the electric heater during dehumidification 50 Low temp heat start temp Sets the upper required temperature limit for starting the electric heater at low temperature 100 Max dehumid runtime Sets the dehumidification duration for a precision air conditioner in automatic mode 60 min Dew point sup w ater TD for dehumid Sets the minimum temperature difference between the ambient dew point tempera...

Page 70: ...espond to the selected T H control type can be set NetCol5000 A020 NetCol8000 C Return air NetCol5000 A035 025 NetCol5000 C Supply air Temp control mode Controls the temperature inside the room or aisles based on the Average Maximum or Minimum of the temperatures collected by each sensor Average Supply air temp set point Sets the supply air temperature set point for a precision air conditioner aft...

Page 71: ...n air conditioner performs the cooling or heating based on the value NetCol8000 C 22 0 C NetCol5000 A035 025 NetCol5000 C 23 0 C NetCol5000 A020 24 0 C Cold aisle humid set point Sets the humidity set point for a cold aisle after T H control type is set to Cold aisle The precision air conditioner performs the humidification or dehumidification based on the value 50 0 RH Hot aisle temp set point Se...

Page 72: ...onstant Indicates the parameter related to the control algorithm for the compressor rotational speed or chilled water valve openness You are not recommended to change the value NetCol5000 C 112s NetCol5000 A035 025 NetCol8000 C 120s Temp diff time constant Indicates the parameter related to the control algorithm for the compressor rotational speed or chilled water valve openness You are not recomm...

Page 73: ...s the parameter related to required temperature calculation You are not recommended to change the value 3 0 C Temp deadband Indicates the parameter related to required temperature calculation You are not recommended to change the value 0 0 C Home Screen Settings System Settings Humidity Control Humid control type Sets the humidity control type Return air Humid control mode Sets the relative or abs...

Page 74: ...e minimum rotational speed for the compressor 1500 rpm Max speed Sets the maximum rotational speed for the compressor NetCol5000 A025 4000 rpm NetCol5000 A035 4500 rpm Min dehumid speed Sets the minimum rotational speed for the compressor when the precision air conditioner is under dehumidification 3600 rpm LF oil return speed Sets the rotational speed for the precision air conditioner at low freq...

Page 75: ...scharge HT for freq rise limit Sets the discharge temperature for compressor frequency rise limit 105 0 C Discharge HT for freq fall Sets the discharge temperature for forcibly decreasing the compressor frequency 115 0 C Discharge HT for shutdown Sets the discharge temperature for shutting down the compressor 125 0 C Discharge HP for freq rise limit Sets the discharge pressure for compressor frequ...

Page 76: ...e the compressor frequency begins to decrease 0 63 Mpa Anti freeze press for shutdown Sets the suction pressure limit for preventing the freeze of pipes When the pressure is lower than the value the compressor will be shut down 0 55 Mpa Anti freeze shutdown delay Indicates the time delay for shutting down the compressor when the detected suction pressure reaches the value for shutting down the com...

Page 77: ...ield To avoid the resonance of the compressor and pipes the resonant point should be shielded The parameter is the low limit of the compressor resonance frequency range Low limit for speed 1 shield Low limit for speed 2 shield Low limit for speed 3 shield 0 rpm Low limit for speed 4 shield 3330 rpm Low limit for speed 5 shield 3810 rpm Upp limit for speed shield To avoid the resonance of the compr...

Page 78: ...tem Settings CW Valve Max adjust step Sets the maximum step for adjusting the chilled water valve You are not recommended to change the value 50 0 Min valve opening for dehumid Sets the minimum openness of the chilled water valve after entering the dehumidification mode You are not recommended to change the value 40 0 Anti cond valve regu ratio Sets the decrease of the openness of the chilled wate...

Page 79: ...when the precision air conditioner is under humidification NetCol5000 A035 025 50 NetCol8000 C 60 NetCol5000 A020 85 Max dehumid speed Sets the maximum rotational speed for the indoor fan when the precision air conditioner is under dehumidification NetCol5000 A035 025 NetCol5000 C NetCol8000 C 70 NetCol5000 A020 85 Normal adjust period Sets the period of control algorithm for the indoor fan 10s Ma...

Page 80: ... less than Dehum anti cond speed rise temp diff during the dehumidification indoor fan speed rises to prevent condensation 5 0 C Dehum anti cond speed fall lim temp diff When the temperature difference between the supply air temperature and dew point temperature is less than Dehum anti cond speed fall lim temp diff during the dehumidification indoor fan speed fall is limited 2 0 C Cool anti cond s...

Page 81: ...er to prevent the water pan boiling dry when humidification is required The light tube does not light up S shaped humidifier 30s L shaped humidifier 60s Pre water fueling time Sets the time for fueling water following pre water supplying The tube lights up during the water fueling process S shaped humidifier 180s L shaped humidifier 300s Humidification time Sets the time for humidification after w...

Page 82: ...down the water pump after the low float rises if the low float rises and do not drop for a certain period the float is faulty or the water is not properly drained NetCol5000 A035 025 300s NetCol5000 A020 NetCol5000 C 600s High float rise delay Sets the time delay for reporting an alarm and shutting down the water pump after the high float rises if the high float rises and do not drop for a certain...

Page 83: ...ode Energy saving mode Sets the fans to rotate at a low speed when there is no requirement Off Home Screen Maint Performan ce Maint CW valve total runtime compressor total runtime indoor fan total runtime elec heater total runtime humidifier total runtime cond pump total runtime cond pump run factor air filter total runtime Check or clear the total runtime for each component 0 h Home Screen Maint ...

Page 84: ...ription Issue Draft A 2014 12 26 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 78 Menu Parameter Description Default Value pipe temp adj value comp discharge temp adj value comp discharge pres adj value comp suction pres adj value ...

Page 85: ...l Copyright Huawei Technologies Co Ltd 79 B Acronyms and Abbreviations A AC alternating current ACC advanced cooling controller C CAN control area network D DC direct current L LCD liquid crystal display LUI local user interface N NMS network management system S SNMP Simple Network Management Protocol U USB universal serial bus ...

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