Vertiv Liebert iCOM DP400/500 Скачать руководство пользователя страница 83 | Manualshive

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Secondary Cooling Temperature Control with 2-Step Compressor

When the fluid temperature meets the set up requirements, secondary cooling provides temperature control as follows. If the
fluid is not cold enough, primary, compressorized cooling operates as normal.

NOTE: The compressor control method is not affected by economizer operation and operates across the assigned
proportional band based on the compressor configuration of your system (1-step, 2-step, 4-step, or digital-scroll). See

Compressor Control by Cooling Requirement

on page 23, for a description compressor-control methods.

•

70° temperature setpoint

•

8° temperature proportional band

•

2° temperature deadband

In Figure 7.1 on the next page:

The proportional band is divided evenly on each side of the setpoint, and an additional half of the proportional band is
added to the cooling side for 200% cooling.

•

At 71° air temperature (cooling demand 0%), the fluid control valve is closed.

•

As cooling demand increases from 0% to 100%, the fluid control valve opens incrementally to increase cooling
capacity proportionally until fully open at 75° (cooling demand 100%).

NOTE: If simultaneous operation of economizer cooling and compressor (DX) cooling is enabled, the compressor(s)
may begin operation before the valve is open 100% because the fluid temperature differential is calculated to provide
insufficient cooling.

•

At 100% cooling demand, the compressor control method is employed across the additional half of the
proportional band, a single scroll compressor with unloaders in this example:

•

The compressor starts unloaded at 77° when the cooling requirement is 150%.

•

At 79° when the cooling requirement is 200%, the compressor operates loaded until 77° is reached when
cooling requirement is 150% when it returns to unloaded operation.

7 Configuring Economizer Operation

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Содержание Liebert iCOM DP400/500

Страница 1: ...Liebert iCOM Installer User Guide Intelligent Communication and Monitoring for Liebert DSE Packaged Solution DP060 DP400 500...

Страница 2: ...ms all liability for damages resulting from use of this information or for any errors or omissions Refer to other local practices or building codes as applicable for the correct methods tools and mate...

Страница 3: ...User menu options 10 1 8 Service Menu 11 1 8 1 Service Menu Options 11 2 User Operation 13 2 1 Viewing and Editing Setpoints for the Cooling Unit 13 2 1 1 Editing Temperature Setpoints 13 2 2 Viewing...

Страница 4: ...3 4 1 2 Alarms Events Panel Fields 43 4 2 Enabling Events and Editing Event Settings 44 4 3 Selecting Event Type and Setting Alarm Warning Notification 45 4 3 1 To Select Event Type and Notification 4...

Страница 5: ...ting BMS Backup Setpoints 81 9 Configuring Auxiliary Devices 83 9 1 Power Monitoring 83 9 1 1 To Set Up Power Monitoring 83 9 2 Fluid Temperature Monitoring 84 9 2 1 Fluid Sensor Options 84 9 3 Config...

Страница 6: ...onoPhase Options 100 11 7 Diagnosing Digital Output Issues 101 11 7 1 Diagnostics Digital Output Options 101 11 8 Diagnosing Analog Output Issues 101 11 8 1 Diagnostics Analog Output Options 101 11 9...

Страница 7: ...stalling Analog Input Devices 125 13 5 Installing the Unit to Unit Network 126 13 5 1 Required Network Equipment 126 13 5 2 Planning Wiring Runs 126 13 5 3 U2U Wiring connection 127 13 5 4 Wiring Cool...

Страница 8: ...Vertiv Liebert iCOM Installer User Guide vi This page intentionally left blank...

Страница 9: ...nstallation and simplifies control of Liebert thermal management units literally putting cooling system monitoring and management at your fingertips The resistive touchscreen is used with a firm touch...

Страница 10: ...selected the advanced options are available on the main display and menu NOTE You must unlock the display with the Service PIN to access the menu andread only options See PoweringOn iCOM andLoggingIn...

Страница 11: ...Control header Controls to access the user and service menus See Control Header on page 6 16 Status Header Displays the alarm status unit identification and the current date and time Table 1 1 Main Di...

Страница 12: ...if the unit includes humidity control that displays on the dial as well If the sensor selected for fan control is the same as that selected for temperature control the dial displays the fan control se...

Страница 13: ...f 3 Sensor reading is above threshold limit or the unit is in an alarm condition 4 Sensor reading is belowthreshold limit Sensor Value Selected Threshold Limit Background Color Return Temp None Blue H...

Страница 14: ...y to prevent unauthorized changes A four digit password is required to access the user and service menus and options and the advance menu displays as read only when logged in at the service level NOTE...

Страница 15: ...unit 1 Touch then Turn Unit On The TURN UNIT ON dialog opens 2 Touch Turn Unit On The cooling unit starts and the operating status is displayed as shown in Figure 1 4 below Figure 1 4 Unit Status on i...

Страница 16: ...erational after a power cycle because the restart delay timer is active Table 1 4 Cooling Unit Statuses Displayed continued 1 3 3 Powering Off the Thermal Management Unit NOTE You must be logged in to...

Страница 17: ...he iCOM before the touchscreen model For a listing of the line IDs see Setpoints and Alarm Settings by Line ID on page 133 NOTE You must be logged in to access the display search See Powering On iCOM...

Страница 18: ...6 The orange bar appears below the menu name when selected indicating that this is the menu content that will be displayed 2 Touch the menu icon The menu opens 1 7 User Menu The user menu lets you vie...

Страница 19: ...NTS panel See Editing Setpoints for the Cooling Unit on page 19 Diagnostic Service Opens the Diagnostic Service menu Diagnostics See Performing Diagnostics on page 95 EconoPhase View Opens the ECONOPH...

Страница 20: ...ng Exporting and Restoring Display Settings on page 91 Control Backup and Restore See Backing Up and Restoring Control Board Settings on page 92 Display Upgrade See Updating iCOM Display Firmware on p...

Страница 21: ...etpoint options then touch Save The setpoint is updated Touch Cancel to discard the changes NOTE Depending on the type of thermal management unit included components and control settings of your syste...

Страница 22: ...elow describes the type and state of the alarm shown by indicator dots Indicator Description Yellowdot Warning event Red dot Alarm event Circle Event condition has cleared but still must be acknowledg...

Страница 23: ...as it is unacknowledged with the exception of the network failure events described in Table 2 2 on the next page Once acknowledged an event remains active until the situation that triggered the event...

Страница 24: ...COMM ERR See Events Specific to Liebert MC Condenser on page 49 CAN PB COMM ERR See Events Specific to Liebert EconoPhase on page 50 Table 2 2 Events That Clear without Acknowledgment 2 3 Viewing the...

Страница 25: ...un time limit and reset total run hours to zero 1 Touch then Total Run Hours The RUN HOURS panel opens and the current hours for each component are listed in the Total Run Hours column To reset the to...

Страница 26: ...g opens displaying the Teamwork mode number of units in standby and number of operating units NOTE You must be logged in with the Service PIN to edit teamwork mode See Powering On iCOM and Logging In...

Страница 27: ...below Temperature Compensation See Setting Temperature Compensation on page 27 3 1 2 Configuring Temperature Setpoints 1 Touch then Setpoints Temperature Control The TEMPERATURE CONTROL secondary pan...

Страница 28: ...nt of cooling heating determined by the difference between the air temperature sensor reading and the temperature setpoint PI Percent of cooling heating calculated using the temperature proportional b...

Страница 29: ...l management units employ several types of primary cooling sources Compressor Operation iCOM controls the cooling units based on a calculated need for cooling and heating if included on your system Th...

Страница 30: ...ssors and valves and causing excessive component cycling Figure 3 2 on the facing page illustrates temperature control using 70 setpoint 10 proportional band 2 deadband Like the proportional band the...

Страница 31: ...ncrease the proportional band slightly by increasing the integration time between 3 and 5 minutes and monitor compressor run time Set the temperature deadband to 2 Run time must be more than 3 minutes...

Страница 32: ...e is no refrigerant flowing through the compressor When the valve is closed de energized the compressor is loaded and capacity is 100 Capacity is determined by the amount of time that the valve is clo...

Страница 33: ...s per cooling demand The lag compressor starts when cooling demand is 35 and operates at 70 capacity increasing capacity as cooling demand increases On both compressors at 100 cooling requirement the...

Страница 34: ...pressor and one fixed capacity standard scroll compressor on a circuit Typically tandem compressors are employed in dual circuit Liebert DSE units with circuit 1 on the outer coil and circuit 2 on the...

Страница 35: ...lls 1A and 2A modulating 25 to 50 3 Digital scrolls 1A and 2A modulating Fixed 1B 50 to 75 4 Digital scrolls 1A and 2A modulating Fixed 1B and 2B 75 to 100 Table 3 2 Cooling Stages and Compressor Oper...

Страница 36: ...ermal management unit included components and control settings of your system all of the options listed may not be available on your iCOM display High Low Limit Control Options High Return Limit Enabl...

Страница 37: ...nt system Fan Control Type Selects the method of control for the fan motor Auto Air flow fan speed is adjusted using locally installed temperature sensors Proportional Regulation based on the differen...

Страница 38: ...INPUT PROPERTIES panel adjust the properties then touch Save Touch Cancel to discard the changes without saving Setting Manual Fan Speed Control via Building Management System 1 Touch then Setpoints F...

Страница 39: ...led N A Return Sensor Decoupled Decoupled Coupled Table 3 3 Fan Speed Controlling Sensor Ooptions To Set Parameters for Automatic Fan Speed Control 1 Touch then Setpoints Fan Control Set Fan Control T...

Страница 40: ...on which noise reduction operation is disabled when the schedule is enabled Interval 1 Start and finish time of day that noise reduction operates Interval Day Selects days on which noise reduction ope...

Страница 41: ...everse Fans Now Enables Disables immediate fan reversal 3 2 3 Scheduling Sleep Times for Thermal Management Units Unit sleep schedules turn off units during low demand as long as return temperature re...

Страница 42: ...Cancel to discard the changes without saving NOTE Depending on the type of thermal management unit included components and control settings of your system all of the options listed may not be availab...

Страница 43: ...rts when Auto Restart Enable is enabled Temp Control Sensor Failure Cooling Mode Unit operation when Cooling is selected at control temperature sensor failure Hold Holds the last call for cooling That...

Страница 44: ...ation during quick start When enabled on DSE thermal management units note the following If unit was operating in pump mode at the time of power loss unit restarts in pump mode If unit was operating i...

Страница 45: ...Air flow is adjustable via iCOM manually using a building management system BMS or automatically using locally installed temperature sensors NOTE Thermal management units ship with the factory settin...

Страница 46: ...at which the fan speed changes for a quicker reaction of fan speed at high temperatures Fan Speed Reposition Delay Length of time before fan speed can decrease allowing temperature to stabilize befor...

Страница 47: ...pressor Settings Options Ball Valve Setpoint Offset Adjusts sensitivity to compressor discharge pressure or liquid pressure by increasing sensitivity The higher the added pressure the more the valve o...

Страница 48: ...essor sequencing available in two compressor cooling units allows assigning a lead compressor or allowing automatically leading with the compressor with the lower run hours logged When Auto is selecte...

Страница 49: ...ay because a medium sized board does not have Q15 output Q15 Output Direction Selects whether the output is normally on or normally off Q15 Output Function Selects the reason for which the digital out...

Страница 50: ...mp Actual Current value of the sensor selected as the Q15 Output Sensor Q15 Temp Output Threshold Temperature threshold above or below which Q15 output activates Vertiv Liebert iCOM Installer User Gui...

Страница 51: ...andby unit Message and warning events do not 4 1 Event Properties The ALARMS EVENTS panel lists all events available on the system You can view and modify events and the criteria that trigger visual a...

Страница 52: ...r example the factory set remote sensor alarms and humidification dehumidification events In some cases touch the group heading provides edit options for the entire group like thresholds delays and en...

Страница 53: ...le 4 3 on page 49 describes events for the Liebert DSE compressors 4 3 1 To Select Event Type and Notification 1 Touch then Alarm Event Setup 2 Scroll or search to find the event and touch the alarm o...

Страница 54: ...event trigger that notification is sent Default delay may or may not be adjustable and is added to the internal delay of event notification Type may be adjustable or may be fixed NOTE Depending on cu...

Страница 55: ...STANDBY UNIT ON 2 sec 2 sec 0 9999 ALM HUMIDIFIER PROBLEM 2 sec 2 sec 0 9999 ALM NO CONNECTION w Unit1 Internal Calc WRN UNIT X DISCONNECTED Internal Calc WRN LOSS OF POWER 0 sec no ALM CUSTOMER INPU...

Страница 56: ...OR A 0 sec 30 sec 0 9999 WRN LOW DEW POINT SENSOR A 0 sec 30 sec 0 9999 WRN HIGH REMOTESENSOR 0 sec 30 sec 0 9999 WRN POWER A FAILURE 0 sec 10 sec 0 9999 ALM POWER B FAILURE 0 sec 10 sec 0 9999 ALM AI...

Страница 57: ...it returns to inactive state closed the event is reset and the compressors in that circuit may be powered on Normal compressor lead lag sequence resumes when both compressors are Off GC 1 or 2 Board F...

Страница 58: ...Description PB1 BOARD FAIL An unrecoverable failure of the pump control board has occurred Pump shut down Pump board must be rebooted to reset event PB1 CAVITATE SHUTDOWN Pump has cavitated and shut...

Страница 59: ...erant temperature sensor failure Pump shut down Event is reset when condition clears PB2 INV DATA SHUTDOWN Invalid data detected and pump shut down Event is reset when iCOM requests a newstartup PB2 L...

Страница 60: ...at full pump capacity temperature conditions EconoPhase operation is disabled until the event is manually reset Table 4 4 Events Specific to Liebert EconoPhase continued 4 4 Enabling the Audible Alar...

Страница 61: ...nput number select the input type that best describes the wired device input see Table 4 6 on the next page 3 In Customer Input X Active When select whether the input is active triggers events when Op...

Страница 62: ...oss Event only FC Lockout Event Free cooling disabled Heater Alarm Event Heaters off FlowAL SD Event Shut down the unit FlowAL LC Event Lockout compressors no pump down Enabled only if at least one co...

Страница 63: ...Inactive Y closes and X opens See 7 3 Custom Dual Chilled Water Valve Staging EC FAN FAULT Event Set analog output to 10 V ECO AIRFLOW Event Reduce Liebert air economizer air flow DAMPERSWITCH Damper...

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Страница 65: ...cooling unit operation with room conditions NOTE For ease of set up and use we recommend using only one group unless you have multiple rooms differing software versions or different types of cooling...

Страница 66: ...twork cabling before setting the U2U network configuration groups Network communication conflicts and unreliable display readings will result Configure the network using Configuring U2U Network Settin...

Страница 67: ...pdates to indicate the components that need rebooted or restarted If the control board reboots the cooling unit suspends operation for 60 seconds then resumes operating 5 2 2 U2U Display and Control B...

Страница 68: ...control board on the U2U network Address range is 1 to 32 and must be consecutive from the previous control board address in the U2U group This is the address used for stand by lead lag and cascade o...

Страница 69: ...ens Make adjustments and touch Go Continue making corrections until no problems are indicated 3 Verify that unit to unit communication is established then touch Save NOTE Depending on the changes made...

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Страница 71: ...isconnected iCOM automatically assigns a virtual master which assumes the responsibilities of the lead unit until communication is restored 6 2 Teamwork Modes When iCOM controlled thermal management u...

Страница 72: ...for heating or cooling only Cooling Standby units cascade on with a call for cooling only Teamwork mode 3 Optimized Aisle options are Fan PI Standby units cascade on based on the inability of active u...

Страница 73: ...f Connected Units Number of units connected in the group if U2U networked Start Next Unit at SYS Fanspeed Fan speed at which the next cascaded unit is powered on Stop Next Unit at SYS Fanspeed Fan spe...

Страница 74: ...Rotation and cascading is not available so expect uneven distribution of work hours 6 2 5 Teamwork Mode 3 Optimized Aisle Operation In Teamwork Mode 3 the fan speed for all units operates in parallel...

Страница 75: ...the group are set automatically Touch then BMS Teamwork Setup Teamwork Standby Teamwork Mode In Teamwork Mode select 3 Optimized Aisle In Teamwork is based on select Maximum or Average then touch Save...

Страница 76: ...el displays 3 Adjust the settings then touch Save Touch Cancel to discard the changes Standby Options High Temperature Threshold Temperature at which all standby units are activated Number of Standby...

Страница 77: ...Rotate Every Selects rotation period Valid values 12 hrs 24 hrs Rotate Now Immediately performs rotation Rotation Frequency Frequency at which rotation occurs Options include No Rotation disabled Dail...

Страница 78: ...is the lead unit continue with step 2 If it is not the lead unit find the lead unit and start at step 1 2 Touch then BMS Teamwork Setup Teamwork Standby The TEAMWORK STANDBY panel opens 3 Touch Unit...

Страница 79: ...f fluid economizers GLYCOOL Economizer a two pipe system that feeds a second glycol coil in the cooling unit and also the compressor s and heat exchanger Liebert Paradenser tube in tube condenser or b...

Страница 80: ...rn air sensor and an Aquastat Sensor AQ that measures the glycol chilled water temperature 1 Touch then Economizer Setup The SETUP panel opens Indicator dots next to the parameters show the status of...

Страница 81: ...e difference parameter is set using the DT Between Room and Fluid Value slider When the difference is equal to or greater than the selected value secondary cooling is used DT Between Room and Fluid Va...

Страница 82: ...ve may be reduced by the comparator circuit based on the differential temperature DT settings When this occurs the compressor control proportional band moves closer to the setpoint and compressorized...

Страница 83: ...ional band is added to the cooling side for 200 cooling At 71 air temperature cooling demand 0 the fluid control valve is closed As cooling demand increases from 0 to 100 the fluid control valve opens...

Страница 84: ...of proportional band assigned to valve operation 6 Scroll compressor step 1 Compressor 1 in dual compressor configuration Unloaded in single compressor configuration 3 Fluid control valve closed 7 Sc...

Страница 85: ...If the status indicators are not all green the economizer is not used to condition the unit To adjust the settings see Setting Up Fluid Economizer Operation on page 72 Fluid Economizer Status Options...

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Страница 87: ...d party protocols to monitor and manage a range of parameters and events and requires Velocity V4 monitoring protocol standard on firmware versions PA1 04 033 and later including Velocity Protocol for...

Страница 88: ...system all of the options listed may not be available on your iCOM display IntelliSlot Options Monitoring Address Address used by an optional installed IntelliSlot card The factor default is 3 Do not...

Страница 89: ...fan speed setting set via fan setpoints or by BMS 8 1 3 Setting BMS Backup Setpoints 1 Touch then BMS Teamwork BMS Setup Configure Timeout button on the lower right of the panel The CONFIGURE TIMEOUT...

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Страница 91: ...o ground Input current per phase Energy consumption in kilowatt hours Instantaneous power in watts Power consumption 9 1 1 To Set Up Power Monitoring 1 Touch then Auxiliary Device Setup Modbus Devices...

Страница 92: ...d touch Save The fluid temperature sensor settings are saved NOTE Depending on the type of thermal management unit included components and control settings of your system all of the options listed may...

Страница 93: ...2 Input 3 Input 4 Not Used Control Board Switch Number 1 2 3 4 5 6 7 8 9 10 Analog Input device value 0 10 VDC Off Off Off Off Off Off Off Off 0 5 VDC On Off On Off On Off On Off 4 20 mA On On On On...

Страница 94: ...units sensor array and touch Save Wired Remote Sensor Set Up Options below describes the setting options 3 Touch a specific sensor The SENSOR PROPERTIES for that sensor open NOTE The sensor number li...

Страница 95: ...ot be available on your iCOM display 9 4 2 Wired Remote Sensor Sensor Property Options Function Sets the function of the sensor when Unit Remote Sensors Mode is enabled Disable Sensor readings are ign...

Страница 96: ...onfiguration parameters valve pulse cooling filters and return compensation can be used to enhance the supply air control The valve pulse and cooling filter timer can be adjusted to prevent oscillatio...

Страница 97: ...To 4 Depending on whether you want to restore the display to factory defaults or keep the current display settings Check the box next to Reboot with Factory Defaults to return the display to factory d...

Страница 98: ...is reset to the factory default configuration during the upgrade Retain Network Configuration When selected the current network settings and options are retained while all other settings are reset to...

Страница 99: ...ads iCOM display settings from a previously exported file to an additional iCOM system for identical settings including panel customization and custom labels on both 10 2 1 To Back Up or Restore 1 Tou...

Страница 100: ...touch the Value field for the password to change The keypad opens 3 Type a new four digit character password then touch and touch Save The password is saved Touch Cancel to discard the change 10 4 Ba...

Страница 101: ...OTICE Risk of loss of access to iCOM Can cause operational problems When a password is changed make sure you record the new password and inform authorized users If problems arise passwords can be rese...

Страница 102: ...each field to make your selections then touch Next The NETWORK panel opens 5 Determine the use of network communications and configure as needed then touch Next The SUMMARY panel opens 6 Review the s...

Страница 103: ...rm present but unacknowledged Flashing Blue iCOM display is starting up or updating iCOM firmware Table 11 1 Cooling Unit LED Colors and State Meanings 11 2 Enabling Manual Mode for Diagnostics Use ma...

Страница 104: ...the type of thermal management unit included components and control settings of your system all of the options listed may not be available on your iCOM display 11 3 1 Diagnostics Evaporator Fan Optio...

Страница 105: ...s disables compressor capacity during manual diagnostics mode Compressor Mode Selects compressor operation during manual diagnostics mode Options are 0 Run normal operation 1 Evacuate 2 Charge Compres...

Страница 106: ...NOTE Cycling main power of the cooling unit will also unlock the compressor 1 On the Service menu touch Diagnostic Service Diagnostics The DIAGNOSTICS panel opens 2 Touch Compressor Circuit Nin the Ca...

Страница 107: ...Firmware Version Current firmware data Manual Valve Control Sets the valve open percentage during manual diagnostics mode Manual Valve Control Enabled Enables disables manual control of the valve in m...

Страница 108: ...ermal management unit included components and control settings of your system all of the options listed may not be available on your iCOM display 11 6 1 Diagnostics EconoPhase Options Pump Board N Fir...

Страница 109: ...ics Analog Output Options below for descriptions of diagnostic options NOTE Depending on the type of thermal management unit included components and control settings of your system all of the options...

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Страница 111: ...g from the drop down list 3 Touch Save to save the property settings Touch Cancel to discard changes 12 1 1 Unit Display Options Alarm Buzzer Pattern Selects or disables the audible alarm notification...

Страница 112: ...an create custom display views by adding changing moving and resizing the content objects NOTE You must be logged in to customize the view See Powering On iCOM and Logging In Unlocking Controls on pag...

Страница 113: ...play 1 Touch then 2 Touch in the upper right corner of the display and just below the control header then touch A menu of content options opens described in Table 12 1 on the next page 3 Touch the Mov...

Страница 114: ...mation may be exported Run Hours Run hours panel Summary of the component run hours and limits EconoPhase Diagram EconoPhase operating diagram EconoPhase Status Compressor Econophase status bar Indica...

Страница 115: ...nd Value in the Analog Inputs panel to Input and Configuration Touch Cancel to discard the change 5 When finished editing labels make sure the Enable Custom Labels is selected or your updates will not...

Страница 116: ...ive name for the file then touch Go 3 Touch Export and wait at least 15 seconds then you can remove the USB drive 4 Insert the USB drive into a PC or laptop and locate the file which is named with the...

Страница 117: ...operty Input analog_input_properties header_value Configuration 7 Remove the USB drive with the updated saved text file from the PC laptop insert it into an open USB port on the rear of the touchscree...

Страница 118: ...probes on a 6 ft 1 8 m probe connection cable Figure 12 4 below and requires several steps to prepare connect and begin monitoring the racks Set DIP switches in each sensor Terminate final sensor on...

Страница 119: ...position in the chain 2 Locate the DIP switch hole on the rear of the sensor housing Figure 12 5 below or If the hole is not present or the settings are difficult to make through the hole remove the...

Страница 120: ...f Off 9 Off Off On On On Off Off Off 10 On Off On On On Off Off Off Table 12 2 DIP Switch Settings for Wired Remote Sensors NOTE Up is on down is off on the DIP switch Figure 12 6 DIP Switches in 2T S...

Страница 121: ...r with only 1 CAN cable after all sensors are connected to the CANbus network See Connect the CANbus Cable and Ground on page 117 2 Open the sensor s case by removing the Phillips head screws typicall...

Страница 122: ...n 2T Circuit Board Item Description 1 Position 1 P3 jumper 2 Position 2 P3 jumper 3 Position 3 P3 jumper 4 Unterminated 5 Terminated 6 Rear of sensor cover removed 7 P3 termination jumper Vertiv Liebe...

Страница 123: ...nt cooling units provides redundancy and effective operation by sharing sensor data from the cooling units in Teamwork mode NOTE Even though your DP Packaged Unit is located outside the conditioned ar...

Страница 124: ...re not used for fan or cooling control 1 Install the inlet rack temperature sensors on a rack in the area cooled by its connected unit as shown in Figure 12 10 below Figure 12 10 Rack Sensor Placement...

Страница 125: ...ire d Using the supplied hook and loop fastener connect the 2T sensor housing to the rack in an easily accessible location and with the sensor number visible 3 Repeat step 2 until all sensors are inst...

Страница 126: ...bends to less than four times the diameter of the cable When securing and hanging avoid deforming the cable Keep cables away from devices that may cause interference such as high voltage wires machin...

Страница 127: ...ia pre cut hole in housing Figure 12 13 on the next page and program according to Table 12 3 below Figure 12 14 on the next page shows the switch and on off setting CANbus Node ID DIP Switch position...

Страница 128: ...Sensors Fluid Sensors Fluid 2T SensorCW T The SENSOR PROPERTIES panel opens In Fluid Sensor Type select the type of 2T sensor 4 At the fluid inlet and outlet use a field supplied temperature sensor to...

Страница 129: ...ate reading 5 ft to 15 ft 1 5 m to 4 5 m from the cooling unit Figure 12 15 below NOTE A 50 ft 15 m extension cable is available from Vertiv if the sensor must be more than 15 ft 4 5 m from the iCOM u...

Страница 130: ...rature monitoring Table 12 4 on the facing page indicates the Node IDs and the alternate use Once installed iCOM recognizes the as supply air sensors distinguished from the wired remote sensors that m...

Страница 131: ...the DIP switches are set correctly for each sensor and replace the housing cover if necessary Sensor Number Address DIP Switch Position CANbus Node ID Alternate Use 1 2 3 4 5 6 7 8 A On Off Off Off O...

Страница 132: ...To terminate the last sensor 1 Locate the sensor that will be last on the CANbus link NOTE The last sensor on the network will be the sensor with only one CAN cable after all sensors are connected to...

Страница 133: ...quipped devices as follows can be connected to terminals 41 42 43 and 44 45 and 46 or 47 and 48 Table 12 5 below lists available analog inputs depending on the type of cooling unit See Configuring Ana...

Страница 134: ...o 32 cooling units may be connected in a unit to unit U2U network 13 5 2 Planning Wiring Runs When planning the layout of the conditioned space consider the following Good wiring practices An Ethernet...

Страница 135: ...e U2U network to the building or IT network If the U2U network experiences a failure the cooling units continue to operate independently iCOM supports up to 64 nodes on the U2U network The following a...

Страница 136: ...ng for U2U Group Set Up on page 57 and Configuring U2U Network Settings on page 59 To connect two cooling units with a touchscreen a network switch is not needed Connect a crossover CAT5 cable to the...

Страница 137: ...he rear of the display and the other to the network switch see Figure 12 20 below Figure 12 20 Connecting Two or More Units with a Network Switch Item Description 1 Touchscreen rear view 2 Ethernet ca...

Страница 138: ...oup Set Up on page 57 and Configuring U2U Network Settings on page 59 Large wall mount displays may be used to remotely configure control and monitor all cooling units connected on the U2U network Eac...

Страница 139: ...iebert Thermal Management Products 1 800 543 2778 Liebert Channel Products 1 800 222 5877 Liebert AC and DC Power Products 1 800 543 2378 A 2 Locations United States Vertiv Headquarters 1050 Dearborn...

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Страница 141: ...cooling capacity either chilled water valve compressors free cooling valve or air economizer Unloading type compressors can be set to any type of sensor however fixed style compressors can only be set...

Страница 142: ...ntrol setpoint it will not affect the fan control setpoint U114 Supply Temp Limit Setpoint 41 81 F 5 0 27 0 C 41 F 5 0 C Selects the minimum discharge air temperature When the actual sensor reading ap...

Страница 143: ...ion points of compressors chilled water valves or rate of changed based on the actual sensor values deviation from setpoint The saller this number the faster the compressors chilled water values will...

Страница 144: ...er value depends on the current control deviation from setpoint On the setpoints 0 call for cooling it s typically set lower slow Compressor Capacity Filter at 100 0 01 99 99 s 4 00 s At the end of th...

Страница 145: ...ity control can be maintained If the integration time is set to 0 the humidity control operates as a proportional only control When integration time is set the control mode changes to PI control S129...

Страница 146: ...K field adjustable setpoint or temperature S137 DT2 Room FC Fluid Type Disabled Contact Temp Set Disabled Determines the method to activate the water circuit on Dual Cool and Free Cool units It may be...

Страница 147: ...band with small integral time is a typical way to achieve stable control S150 Fan CFF Hysteresis 0 20 0 02 Modifies the reaction of the fan speed when fanspeed is being dictated by the Call for Coolin...

Страница 148: ...the rate of changed based on where actual temperature is when compared to septoint S159 Fanspeed Filter at 100 0 01 99 99 s 1 00 s This parameter should only be adjusted by factory service trained te...

Страница 149: ...der floor static pressure than above the floor static pressure VFD s cannot be used with this feature due to motor and or bearing degradation that may occur at the lowfan speeds required to support th...

Страница 150: ...delay when the stop compressor setpoint for the first compressor is met S183 Start 2nd Compressor at 100 100 100 Sets activation point of the second compressor This parameter can be used when set to T...

Страница 151: ...s set in line S198 SP Sensors in Avg for TW When this line is set to a value lower than the number of units in the team the lowest static pressure readings will be averaged S198 SP Sensors in Avg for...

Страница 152: ...Deadband High Value 10 100 90 S1C3 Update SuperSaver Signal every 30 300 sec 120 sec S1C4 Update SuperSaver Signal by 1 10 1 S1C5 SuperSaver Max Limit 0 100 100 S1C6 Current SuperSaver Request 0 100...

Страница 153: ...id FlowDeadband XDU 014 Fluid Flow Integration Time 0 300 sec 60 sec Fluid FlowIntegration Time XDU 018 Pump Transition Duration 0 30 sec 15 sec overlap timer for when pumps are rotating from one anot...

Страница 154: ...temperature and humidity values will be compared to a high and lowsetting U208 High Temperature Sensor A 34 210 F 1 0 99 0 C 90 F Allows a user to adjust the point at which the actual Sensor A temper...

Страница 155: ...ts individually for each sensor when the parameter separate thresholds is set to disabled LowRemote 01 10 34 210 F 1 0 99 0 C 55 F U235 Static Pressure Messages Disabled Enabled Disabled Enables or di...

Страница 156: ...ensor Alarms Init Delay 10 9999 sec 90 sec S203 High Return Temperature Alarm 34 210 F 1 0 99 0 C 100 F Sets the temperature threshold for the High LowReturn Temperature alarms LowReturn Temperature A...

Страница 157: ...ime during a loss of flow condition to prevent causing a high pressure alarm due to pump down with no water glycol flowto the condenser hidden unless pump down is enabled applies only to water glycol...

Страница 158: ...Disable prevents remote temperature sensor alarms from occurring Com Set or common setting allows remote alarm activation based on a common alarm setting Sep Set or separate setting allows the user t...

Страница 159: ...C 23 HTRJ VFD 24 HTRJ SPD 25 Fire Alarm 26 2nd Setpoint 27 Emergency Pwr 28 LSI 29 Cond 1 Fail 30 Cond 2 Fail 31 D Scroll Red 32 Swap Valve 33 EC Fan Fault 34 Eco Airflow 35 Damper Switch 36 Power A 3...

Страница 160: ...NING ALARM WARNING S240 Event Delay Time sec 10 9999 sec 30 sec LowRoom Temperature Event Enabled Disabled Enabled Enabled Event LOW ROOM TEMP MESSAGEWARNING ALARM WARNING S241 Event Delay Time sec 10...

Страница 161: ...sabled Event LOW HUM SENSOR A MESSAGEWARNING ALARM WARNING S249 Event Delay Time sec Compressor 1 Overload Event Enabled Disabled Enabled Enabled Event COMP 1 OVERLOAD MESSAGEWARNING ALARM ALARM S250...

Страница 162: ...ilure Event Enabled Disabled Enabled Enabled Event CIRCUIT 2 PUMPD FAIL MESSAGEWARNING ALARM ALARM S257 Event Delay Time sec Digital Scroll 1 High Temperature Event Enabled Disabled Enabled Enabled Ev...

Страница 163: ...nd Pump High Water Event Enabled Disabled Enabled Enabled Event CONDPUMP HIGH WATER MESSAGEWARNING ALARM ALARM S266 Event Delay Time sec 0 AR 1 MR 0 AR Loss of FlowAR Auto Reset MR Manual Reset Event...

Страница 164: ...abled Event LOSS OF POWER MESSAGEWARNING ALARM WARNING S275 Event Delay Time sec 10 9999 sec 10 sec Customer Input 1 Event Enabled Disabled Enabled Enabled Event CUSTOMER INPUT 1 MESSAGEWARNING ALARM...

Страница 165: ...ower 1 Event Enabled Disabled Enabled Disabled Event LOSS OF AIR BLOWER 1 MESSAGEWARNING ALARM ALARM S282 Event Delay Time sec 10 9999 sec 10 sec Reheat Lockout Event Enabled Disabled Enabled Enabled...

Страница 166: ...0 digits 0 9 A Z a z _ CUSTOMER INPUT 2 Edit Customer Input 2 Text S27D Edit Cust Input 3 20 digits 0 9 A Z a z _ CUSTOMER INPUT 3 Edit Customer Input 3 Text S27E Edit Cust Input 4 20 digits 0 9 A Z a...

Страница 167: ...RNING S293 Event Delay Time sec 10 9999 sec 15 sec EC Fan Fault Event Enabled Disabled Enabled Enabled Event EC FAN FAULT MESSAGEWARNING ALARM ALARM S294 Event Delay Time sec 10 9999 sec 30 sec High S...

Страница 168: ...INT MESSAGEWARNING ALARM WARNING S2A4 Event Delay Time sec 10 9999 sec 30 sec High DewPoint Sensor A Event Enabled Disabled Enabled Enabled Event HI DEW POINT SENSOR A MESSAGEWARNING ALARM WARNING S2A...

Страница 169: ...CTRL SENSOR FAILURE MESSAGEWARNING ALARM WARNING S2B6 Event Delay Time sec 10 9999 sec 120 sec LowStatic Pressure Event Enabled Disabled Enabled Disabled Event LOW STATIC PRESSURE MESSAGEWARNING ALAR...

Страница 170: ...C4 Event Delay Time sec 10 9999 sec 120 sec Static Pressure 2 Sensor Failure Event Enabled Disabled Enabled Disabled Event STAT PR 2 SENS FAIL MESSAGEWARNING ALARM ALARM S2C5 Event Delay Time sec 10 9...

Страница 171: ...r 1A High Temperature Event Enabled Disabled Enabled Enabled Event COMP 1A HIGH TEMP MESSAGEWARNING ALARM ALARM S2D6 Event Delay Time sec 10 9999 sec 10 sec Compressor 1B High Temperature Event Enable...

Страница 172: ...nabled Enabled Event COMP 2B SHORT CYCLE MESSAGEWARNING ALARM WARNING S2E6 Event Delay Time sec 10 9999 sec 60 sec GCB Ambient Temperature Differential Event Enabled Disabled Enabled Enabled Event GCD...

Страница 173: ...d Event POWER 2 PHASELOSS MESSAGEWARNING ALARM ALARM S2G2 Phase Loss MB03 shuts unit down 0 No 1 Yes 1 Yes Power 3 Phase Loss Event Delay Time sec 10 9999 sec 10 sec Event Enabled Disabled Enabled Ena...

Страница 174: ...MESSAGEWARNING ALARM WARNING S2G8 Event Delay Time sec 10 9999 sec 60 sec TSA Sensor Fail Event Enabled Disabled Enabled Enabled Event TSA SENSOR FAIL MESSAGEWARNING ALARM ALARM 617 Event Delay Time s...

Страница 175: ...vent Delay Time sec 1 9999 sec 10 sec The current XDUReturn Fluid Temperature is above the threshold Event Enabled DisabledEnabled Enabled Event HIGH RETURN WATER TEMP MESSAGEWARNINGALARM WARNING 624...

Страница 176: ...thod to which the next standby unit will stage ON No disabled Yes enabled via TW Mode 1 Cool Heat enabled via TW Mode 1 Cooling enabled via TW Mode 1 Fan PI enabled via TW Mode 3 Fan speed enabled via...

Страница 177: ...an speedmust be at or continuously above value set in S521 the timer restarts any time the Fan speedfalls below S522 Max Intermediate System Speed 50 100 100 Defines the value to which the System netw...

Страница 178: ...Vertiv Liebert iCOM Installer User Guide 170 This page intentionally left blank...

Страница 179: ...Vertiv Liebert iCOM Installer User Guide...

Страница 180: ...names and logos referred to are trade names trademarks or registered trademarks of their respective owners While every precaution has been taken to ensure accuracy and completeness herein Vertiv Group...

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