Emerson Liebert ICOM-DO User Manual Page 1

Liebert® iCOM® for Liebert DSE™User Manual -Intelligent Communications & Monitoring for Liebert DSE™ withSoftware Version PA2.03.33R

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™22.0 LIEBERT ICOM DISPLAY COMPONENTS AND FUNCTIONSThe large display has th

User Menu ParametersLiebert® iCOM® for Liebert DSE™92Figure 65 Setpoints screen, page 2U113 2nd Temperature Setpoint—Provides a way to program an alte

User Menu Parameters93 Liebert® iCOM® for Liebert DSE™7.2 User-Graphic Menu ScreensGraphic screens allow the user to view temperature and humidity gra

User Menu ParametersLiebert® iCOM® for Liebert DSE™94Event LogEvent Log—The event log displays all events and actions generated by the unit. When mult

User Menu Parameters95 Liebert® iCOM® for Liebert DSE™U206 Low Return Humidity—Allows a user to adjust the point at which the actual return humidity a

User Menu ParametersLiebert® iCOM® for Liebert DSE™96Figure 70 Set alarms screen, page 3U224-U233 High/Low Remote 01 - 10— Sets the High and Low remot

User Menu Parameters97 Liebert® iCOM® for Liebert DSE™U239 SP Messages on Fan Adjust—Enables or disables the static pressure alarms when the fan has b

User Menu ParametersLiebert® iCOM® for Liebert DSE™98U304 Optional Sensor B2H—Shows the Sensor B humidity value if optional reference sensor is connec

User Menu Parameters99 Liebert® iCOM® for Liebert DSE™U313 Daily High Temperature—The highest recorded temperature from the temperature controlling se

User Menu ParametersLiebert® iCOM® for Liebert DSE™100Figure 75 Sensor data screen, page 4These parameters show the analog input configured device and

User Menu Parameters101 Liebert® iCOM® for Liebert DSE™U402 Date—Sets the internal date of the unit. If this unit is connected to other units with the

Liebert iCOM Display Components and Functions3Liebert® iCOM® for Liebert DSE™Table 1 Keyboard icons and functionsIconKey Name FunctionOn/Off Key Begin

User Menu ParametersLiebert® iCOM® for Liebert DSE™1027.6 User-Total Run Hours Menu ScreensTotal Run Hours displays the cumulative hours a particular

User Menu Parameters103 Liebert® iCOM® for Liebert DSE™U609 Timer Reset—Defines when the unit changes back to Sleep Mode after having crossed the high

User Menu ParametersLiebert® iCOM® for Liebert DSE™1047.8 User-Condenser Timer Menu ScreensThe Condenser Timer menu applies to Liebert units coupled t

User Menu Parameters105 Liebert® iCOM® for Liebert DSE™Figure 80 Condenser timer screen—page 2U813 Select Condenser 2—This menu selection toggles betw

Service Menu ParametersLiebert® iCOM® for Liebert DSE™1068.0 SERVICE MENU PARAMETERSService menus allow customized settings for site operations. The p

Service Menu Parameters107 Liebert® iCOM® for Liebert DSE™compressors can only be set to Return or Remote control type l. This parameter can only be c

Service Menu ParametersLiebert® iCOM® for Liebert DSE™108Figure 83 Setpoints screen, page 2 of 9S113 Enable Temp Compensation—Temperature compensation

Service Menu Parameters109 Liebert® iCOM® for Liebert DSE™Figure 84 Setpoints screen, page 3 of 9S124 Humidity Control Sensor—Defines which humidity v

Service Menu ParametersLiebert® iCOM® for Liebert DSE™110S132 Dehum Reheat/LL Sensor/Set—Sets the sensor and temperature start point that the reheat w

Service Menu Parameters111 Liebert® iCOM® for Liebert DSE™S141 Lockout FC at FC Fluid below—Prevents frost from building up on the free-cooling pipes

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™4Figure 3 Liebert iCOM default screen symbols2.1 Accessing and Identifying

Service Menu ParametersLiebert® iCOM® for Liebert DSE™112S153 Fanspeed Dehum/No Power—Sets the fan speed when a call for dehumidification is active. T

Service Menu Parameters113 Liebert® iCOM® for Liebert DSE™S160 Fanspeed Reposition Mode/Delay Decel/—This parameter should only be adjusted by a facto

Service Menu ParametersLiebert® iCOM® for Liebert DSE™114Figure 88 Setpoints screen, page 7 of 9S168 Fan Back Draft Control—Enables or disables the Ba

Service Menu Parameters115 Liebert® iCOM® for Liebert DSE™S175 Display Off and BDR—When the back draft damper is enabled, different modes can activate

Service Menu ParametersLiebert® iCOM® for Liebert DSE™116Figure 90 Setpoints screen, page 9 of 9S190 Static Pressure Fan Control—Enables or Disables t

Service Menu Parameters117 Liebert® iCOM® for Liebert DSE™S199 - Operation @ Sensor Failure—This parameter determines what action to take if the stati

Service Menu ParametersLiebert® iCOM® for Liebert DSE™118S508 Cascade Units—Allows units to activate in Standby mode if the room temperature cannot be

Service Menu Parameters119 Liebert® iCOM® for Liebert DSE™8.3 Service-Maintenance / Wellness Menu ScreensMaintenance / Wellness Settings allow the use

Service Menu ParametersLiebert® iCOM® for Liebert DSE™120Figure 93 Wellness—Motor settings screen, page 2 of 9Figure 94 Wellness—Compressor 1 settings

Service Menu Parameters121 Liebert® iCOM® for Liebert DSE™Figure 95 Wellness—Compressor 2 settings screen, page 4 of 9Figure 96 Wellness—Electric heat

Liebert iCOM Display Components and Functions5Liebert® iCOM® for Liebert DSE™Figure 4 System screen—graphical interfaceSystem Screen with Rack View of

Service Menu ParametersLiebert® iCOM® for Liebert DSE™122Figure 97 Wellness—Electric heater 2 settings screen, page 6 of 9Figure 98 Wellness—Electric

Service Menu Parameters123 Liebert® iCOM® for Liebert DSE™Figure 99 Wellness—Humidifier settings screen, page 8 of 9Figure 100 Wellness—Economizer set

Service Menu ParametersLiebert® iCOM® for Liebert DSE™1248.4 Service-Diagnostics / Service Mode ScreensService-Diagnostics / Service Mode provides tro

Service Menu Parameters125 Liebert® iCOM® for Liebert DSE™S31B Low Diff Lockout C1 / C2—Resets a Low Diff C(#= 1 or 2) Lockout. The status is No. If a

Service Menu ParametersLiebert® iCOM® for Liebert DSE™126S317 Compressor 1 Capacity—Standard compressor models. Selects the capacity the compressor sh

Service Menu Parameters127 Liebert® iCOM® for Liebert DSE™Figure 103 Diagnostics/service mode screen, page 3 of 8S324 Electric Heat 1 (or HG/HW)—Activ

Service Menu ParametersLiebert® iCOM® for Liebert DSE™128Figure 104 Diagnostics/service mode screen, page 4 of 8S335 Alarm Relay—Activates the Liebert

Service Menu Parameters129 Liebert® iCOM® for Liebert DSE™Figure 105 Diagnostics/service mode screen, page 5 of 8Status Remote Shutdown—Shows the stat

Service Menu ParametersLiebert® iCOM® for Liebert DSE™130Figure 106 Diagnostics/service mode screen, page 6 of 8S356 Status HP1—Shows the status of th

Service Menu Parameters131 Liebert® iCOM® for Liebert DSE™S370 Status DT3 (Room/Setpoint)—Indicates if the delta T between room return air temperature

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™6Unit ScreenThe Unit screen provides a summary of individual unit operatio

Service Menu ParametersLiebert® iCOM® for Liebert DSE™1328.5 Service-Set Alarms Menu ScreensSet Alarms allows the user to view and modify critical ala

Service Menu Parameters133 Liebert® iCOM® for Liebert DSE™Figure 110 Set alarms screen, page 2 of 12S213 SUP Sensor Alarms/Init Delay—The parameter to

Service Menu ParametersLiebert® iCOM® for Liebert DSE™134Figure 111 Set alarms screen, page 3 of 12S224 Customer Input 1, 2, 3 & 4—Select the devi

Service Menu Parameters135 Liebert® iCOM® for Liebert DSE™Figure 112 Set alarms screen, page 4 of 12Figure 113 Set alarms screen, page 5 of 12

Service Menu ParametersLiebert® iCOM® for Liebert DSE™136Figure 114 Set alarms screen, page 6 of 12Figure 115 Set alarms screen, page 7 of 12

Service Menu Parameters137 Liebert® iCOM® for Liebert DSE™Figure 116 Set alarms screen, page 8 of 12Figure 117 Set alarms screen, page 9 of 12

Service Menu ParametersLiebert® iCOM® for Liebert DSE™138Figure 118Set alarms screen, page 10 of 12Figure 119 Set alarms screen, page 11 of 12

Service Menu Parameters139 Liebert® iCOM® for Liebert DSE™Figure 120 Set alarms screen, page 12 of 128.6 Service-iCOM-DO Setup Menu ScreensThe iCOM-DO

Service Menu ParametersLiebert® iCOM® for Liebert DSE™140Figure 122 iCOM-DO events setup screen, page 2 of 3S733-740, S744-S751—The lines are divided

Service Menu Parameters141 Liebert® iCOM® for Liebert DSE™8.7 Service-Sensor Calibration Menu ScreensSensor Calibration allows the user to view readin

Liebert iCOM Display Components and Functions7Liebert® iCOM® for Liebert DSE™Unit Screen with Rack View of SensorsThe temperatures shown at the top of

Service Menu ParametersLiebert® iCOM® for Liebert DSE™142Figure 125 Sensor calibration/setup screen, page 2 of 7Optional Sensor A and B—Adjusts the re

Service Menu Parameters143 Liebert® iCOM® for Liebert DSE™S628 Supply/Return Sensor—Adjusts the supply temperature reading from the actual sensor to c

Service Menu ParametersLiebert® iCOM® for Liebert DSE™144Figure 128 Sensor calibration/setup screen, page 5 of 7Figure 129 Sensor calibration/setup sc

Service Menu Parameters145 Liebert® iCOM® for Liebert DSE™S664 Results:—Read-only string that describes S665 through S668.S665 DP Transducer Low—Shows

Service Menu ParametersLiebert® iCOM® for Liebert DSE™1468.8 Service-Economizer Menu ScreensEconomizer provides advanced air side Economizer monitorin

Service Menu Parameters147 Liebert® iCOM® for Liebert DSE™Figure 132 Economizer, page 2 of 3SA13 Local Outdoor Air Temperature—Actual outdoor temperat

Service Menu ParametersLiebert® iCOM® for Liebert DSE™148Figure 133 Economizer, page 3 of 3SA24 - Return Damper Open—Sets the open voltage. This param

Service Menu Parameters149 Liebert® iCOM® for Liebert DSE™8.9 Service-System/Network Setup Menu ScreensSystem Network Setup allows setting up a unit-t

Service Menu ParametersLiebert® iCOM® for Liebert DSE™150Figure 135 System/network setup screen—System, page 2 of 2 (large display only)S813 IP Addres

Service Menu Parameters151 Liebert® iCOM® for Liebert DSE™8.10 Service-System/Network Unit-Level Setup Menu ScreensFigure 136 System/network setup scr

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™8Unit Screen with EconoPhase ViewThe unit screen with EconoPhase View prov

Service Menu ParametersLiebert® iCOM® for Liebert DSE™152Figure 137 System/network setup screen—Unit, page 2 of 2S835 Monitoring Protocol—Selects the

Service Menu Parameters153 Liebert® iCOM® for Liebert DSE™8.11 Service-Options Setup Menu ScreensOptions Setup contains component configuration, such

Service Menu ParametersLiebert® iCOM® for Liebert DSE™154Figure 139 Options setup, page 2 of 6S413 Humidification Enabled—Enables or disables humidifi

Service Menu Parameters155 Liebert® iCOM® for Liebert DSE™Figure 140 Options setup, page 3 of 6S424 CW Flush—Selects the number of hours between each

Service Menu ParametersLiebert® iCOM® for Liebert DSE™156Figure 141 Options setup, page 4 of 6S435 Measure Type—Determines the measurement units and r

Service Menu Parameters157 Liebert® iCOM® for Liebert DSE™Figure 142 Options setup, page 5 of 6Only characteristics for analog inputs used for custom

Service Menu ParametersLiebert® iCOM® for Liebert DSE™158Figure 143 Options setup, page 6 of 6S457 Q15 Output Function—Sets the output function for Q1

Service Menu Parameters159 Liebert® iCOM® for Liebert DSE™8.12 Service-Service Contact Info Menu ScreensService Contact Info contains the service cont

Service Menu ParametersLiebert® iCOM® for Liebert DSE™1608.13 Service-Remote Sensors Menu ScreensRemote Sensors provides remote sensor setup and readi

Service Menu Parameters161 Liebert® iCOM® for Liebert DSE™Notes

Liebert iCOM Display Components and Functions9Liebert® iCOM® for Liebert DSE™2.2 Navigating Through the Liebert iCOM MenusLiebert iCOM shows icons and

Service Menu ParametersLiebert® iCOM® for Liebert DSE™162

While every precaution has been taken to ensure the accuracyand completeness of this literature, Liebert Corporation assumes noresponsibility and disc

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™10Figure 10 Navigation from system view to unit view to rack view to Econo

Liebert iCOM Display Components and Functions11 Liebert® iCOM® for Liebert DSE™Accessing SubmenusThe Liebert iCOM has three main menus; User, Service

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™122.2.3 Entering a PasswordThe password must be entered before any value o

Liebert iCOM Display Components and Functions13 Liebert® iCOM® for Liebert DSE™Figure 12 Menu tree—Stand-aloneStatus Menu—System ViewUser MenuUnit #Pa

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™142.2.4 Viewing Multiple Units with a Networked DisplayWhen you first wake

Liebert iCOM Display Components and Functions15 Liebert® iCOM® for Liebert DSE™Figure 14 User menu icons and descriptionsTable 3 User menu iconsIcon N

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™16Total Run HoursRecords the run time of all components and allows setting

Liebert iCOM Display Components and Functions17 Liebert® iCOM® for Liebert DSE™Figure 15 Service menu icons and descriptionsTable 4 Service menu icons

Liebert iCOM Display Components and FunctionsLiebert® iCOM® for Liebert DSE™18Service Contact InfoContains key contact information for local service,

Operation19 Liebert® iCOM® for Liebert DSE™3.0 OPERATIONThe Liebert iCOM display provides viewing, trending and configuration capability for Liebert c

OperationLiebert® iCOM® for Liebert DSE™20Each time a unit is powered on or off, an event is added to the Event Log in the User menu.Figure 16 Start-s

Operation21 Liebert® iCOM® for Liebert DSE™Variable Speed Fans—EC or Variable Frequency DrivesThe Liebert iCOM control can adjust airflow manually thr

iTABLE OF CONTENTS1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OperationLiebert® iCOM® for Liebert DSE™22Minimum Fan SpeedThe Liebert DSE is designed to control fan speed down to 55%. Contact your local Emerson de

Operation23 Liebert® iCOM® for Liebert DSE™Figure 19 Energy efficiency—No bypass air, EC fan damper3.1.3 General Compressor OperationLow-Pressure Time

OperationLiebert® iCOM® for Liebert DSE™24High Pressure AlarmWhen the compressor is initially activated, the system will be monitored for a high press

Operation25 Liebert® iCOM® for Liebert DSE™Supported Compressor Types•4-Step• Digital Scroll• Tandem Digital• No standard scroll supportDigital Scroll

OperationLiebert® iCOM® for Liebert DSE™263.2 Temperature ControlThe Liebert DSE must be operated in a conditioned space within the operating envelope

Operation27 Liebert® iCOM® for Liebert DSE™The integral term (sometimes called “reset action”) is calculated by measuring how much and how long the ai

OperationLiebert® iCOM® for Liebert DSE™283.2.1 Setting Up PI ControlThree to 5 minutes integration time is usually good for most applications. The pr

Operation29 Liebert® iCOM® for Liebert DSE™On single and dual digital scroll compressor systems, the first compressor is started at 25% calculated out

OperationLiebert® iCOM® for Liebert DSE™303.3 Tandem CompressorsLiebert digital tandem compressors will modulate the digital and fixed compressors to

Operation31 Liebert® iCOM® for Liebert DSE™The digital compressor within the tandem compressor set will be activated upon a call for cooling. This com

ii3.9 Event Types and Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573.9.1 High- a

OperationLiebert® iCOM® for Liebert DSE™323.4.1 Electric, Hot Gas and Hot Water ReheatDifferent types of cooling units feature different types of stan

Operation33 Liebert® iCOM® for Liebert DSE™3.5 Humidity ControlSeveral humidifier options may be installed on a particular Liebert DSE, depending on m

OperationLiebert® iCOM® for Liebert DSE™34The default control for humidity and dehumidification is based on dew point temperature. This prevents the h

Operation35 Liebert® iCOM® for Liebert DSE™PI—If PI Control is selected, the percent humidification/heating requirement is calculated by combining two

OperationLiebert® iCOM® for Liebert DSE™36External Humidifier Control—OptionalA factory-supplied option may be provided to allow a start-stop command

Operation37 Liebert® iCOM® for Liebert DSE™Dehumidification Low LimitFigure 28 Setpoints screen, page 3 of 9Figure 29 Dehumidification and reheat cont

OperationLiebert® iCOM® for Liebert DSE™38Low Limit 1 and Low Limit 2 are used to avoid overcooling a room during dehumidification. When a low limit i

Operation39 Liebert® iCOM® for Liebert DSE™Tandem Digital Scroll Operation for DehumidificationWhen tandem digital scroll compressors are present, the

OperationLiebert® iCOM® for Liebert DSE™40Dehumidification Operation• Dehumidification with four compressors operates until there is a call for the fi

Operation41 Liebert® iCOM® for Liebert DSE™Dehumidification with Two Compressors (DH Stage 1)• Compressors C1A and C2A must be On, while compressors C

iii8.0 SERVICE MENU PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1068.1 Service-Setpoints Menu S

OperationLiebert® iCOM® for Liebert DSE™42Dehum Operation with One Compressor Out on AlarmThis type of dehumidification operation will resemble DH Sta

Operation43 Liebert® iCOM® for Liebert DSE™3.6 Supply ControlThe supply temperature sensor should be placed in an area that is influenced only by the

OperationLiebert® iCOM® for Liebert DSE™443.6.1 Supply Temperature ControlThe Liebert iCOM monitors and adjusts the supply (discharge) air temperature

Operation45 Liebert® iCOM® for Liebert DSE™Figure 32 Return Compensation in Unit ViewFigure 33 Return Compensation control bandReturnCompensationin Un

OperationLiebert® iCOM® for Liebert DSE™46The return compensation setpoint will proportionally increase as the return temperature deviates below S114

Operation47 Liebert® iCOM® for Liebert DSE™When supply air compensation has been invoked, it will be indicated on the unit view by a small downward-po

OperationLiebert® iCOM® for Liebert DSE™483.7 Liebert DSE—Basic Control System OverviewThe Liebert DSE with Liebert EconoPhase system includes three p

Operation49 Liebert® iCOM® for Liebert DSE™3.8 CANbus Connections Between the Liebert DSE, Liebert EconoPhase™ and Liebert MC™Communication between th

OperationLiebert® iCOM® for Liebert DSE™50Figure 40 CANbus connections3.8.1 CANbus FailureThe Liebert iCOM will keep the cooling system operating desp

Operation51 Liebert® iCOM® for Liebert DSE™EEV Battery BackupEach electronic expansion valve is equipped with a battery backup to drive the valve clos

ivFigure 31 Return Compensation Setpoint in Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Figure 32 Retu

OperationLiebert® iCOM® for Liebert DSE™52Low Noise / Fan ReversalFan reversal interval should be programmed at times when the unit is off (monitoring

Operation53 Liebert® iCOM® for Liebert DSE™U816 Reversal Duration—Selection defines the length of time the fan(s) will be operated in reverse. This pa

OperationLiebert® iCOM® for Liebert DSE™54When the Liebert DSE is operating in EconoPhase Mode, the Liebert iCOM display will provide a unit level dis

Operation55 Liebert® iCOM® for Liebert DSE™The parameters below can be found in the Liebert iCOM under User > Econophase.Table 11 Liebert EconoPhas

OperationLiebert® iCOM® for Liebert DSE™563.8.7 Liebert EconoPhase (Full / Partial)Before the Liebert DSE can switch from compressor operation to Econ

Operation57 Liebert® iCOM® for Liebert DSE™3.9 Event Types and PropertiesLiebert iCOM events are used to inform the user of cooling unit operational s

OperationLiebert® iCOM® for Liebert DSE™58Table 12 Possible event settings—events listed may vary by specific unit and options orderEventInternal Dela

Operation59 Liebert® iCOM® for Liebert DSE™FC LOCKOUT 2 Sec 2 sec / 0 – 9999 * WRNCOMPRESSOR(S) LOCKOUT 2 Sec 2 sec / 0 – 9999 * WRNCOMP 1 SHORT CYCLE

OperationLiebert® iCOM® for Liebert DSE™60Table 13 Alarms specific to Liebert MC condenserEvent DescriptionGC 1 or 2 DisconnectedThe Liebert iCOM boar

Operation61 Liebert® iCOM® for Liebert DSE™Table 14 Liebert EconoPhase events and alarm notifications on Liebert DSE modelsEvent DescriptionPB1 BOARD

vFigure 81 Service Menu Main Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

OperationLiebert® iCOM® for Liebert DSE™623.9.1 High- and Low-Temperature and Humidity EventsHigh- and low-temperature and humidity alarms can be set

Operation63 Liebert® iCOM® for Liebert DSE™Table 16 Customer inputsSetting ReactionSmoke Event OnlyWater Alarm Event OnlyC PMP Alarm Event OnlyFlow Al

OperationLiebert® iCOM® for Liebert DSE™643.9.3 Analog InputsThe Liebert iCOM allows an external sensor or analog device to be connected, scaled and v

Operation65 Liebert® iCOM® for Liebert DSE™3.9.4 Liebert iCOM-DO™The Liebert iCOM-DO is an optional discrete output relay card that can be connected t

OperationLiebert® iCOM® for Liebert DSE™663.9.5 Possible Event NotificationsTable 20 lists examples of alarms and warnings that can be configured for

Operation67 Liebert® iCOM® for Liebert DSE™Table 21 Alarms specific to Liebert DSE compressorTandem Specific Alarms DescriptionCOMP 1A OVERLOADThe com

OperationLiebert® iCOM® for Liebert DSE™683.10 Wellness—Next Maintenance CalculationThe next maintenance calculation, as well as the diagnostics featu

Operation69 Liebert® iCOM® for Liebert DSE™Liebert iCOM displays a graphic for needed maintenance. It begins with the standard maintenance interval—12

TeamworkLiebert® iCOM® for Liebert DSE™704.0 TEAMWORKUnit-2-Unit (U2U) communications via a private network will allow the following functions to be p

Teamwork71 Liebert® iCOM® for Liebert DSE™4.2.1 Application of Teamwork ModesAll units in a network will run in the same Teamwork Mode.• No Teamwork:

viFigure 131 Economizer, page 1 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TeamworkLiebert® iCOM® for Liebert DSE™724.2.4 Teamwork Mode 3 (Optimized Aisle)Teamwork Mode 3 can be selected when the units are set to operate in O

Teamwork73 Liebert® iCOM® for Liebert DSE™Lead / Lag - Failure ScenariosWhen redundancy configurations are required, the Liebert iCOM unit-to-unit net

TeamworkLiebert® iCOM® for Liebert DSE™74Figure 49 Remote sensorsFigure 50 Sensor positioningSupply (Discharge) Temperature SensorInlet Rack Temperatu

Teamwork75 Liebert® iCOM® for Liebert DSE™4.2.5 Hardware SetupThe Liebert Optimized Aisle Control requires:• A temperature/humidity sensor in the cold

TeamworkLiebert® iCOM® for Liebert DSE™764.3.1 Tools Required for Installation• Small, non-conductive tool for setting control DIP switches • Medium f

Teamwork77 Liebert® iCOM® for Liebert DSE™Figure 54 Setting 2T Sensor DIP Switches4.3.3 Terminate the Final Sensor on the CANbus Link2T Sensors do not

TeamworkLiebert® iCOM® for Liebert DSE™78Terminating Last 2T SensorThe last 2T sensor on the network, which can be identified by only having one CAN c

Teamwork79 Liebert® iCOM® for Liebert DSE™Follow these guidelines when routing CANbus cable to ensure reliable communication.• Use approved hangers, s

TeamworkLiebert® iCOM® for Liebert DSE™804.3.6 Install Grounding Ring Connector in Electrical PanelAfter installation, the grounding ring must be used

Teamwork81 Liebert® iCOM® for Liebert DSE™4.3.7 Software SetupCooling units to be set up for Teamwork Mode 3 (Liebert Optimized Aisle Control) must be

Introduction1Liebert® iCOM® for Liebert DSE™1.0 INTRODUCTIONThe Liebert iCOM offers the highest capabilities in unit control, communication and monito

TeamworkLiebert® iCOM® for Liebert DSE™824.3.8 Standby—RotationTypical Standby (Lead/Lag) FunctionThis function can be performed in any teamwork mode,

Installing a Liebert iCOM Unit-to-Unit Network83 Liebert® iCOM® for Liebert DSE™5.0 INSTALLING A LIEBERT ICOM UNIT-TO-UNIT NETWORKConnecting multiple

Installing a Liebert iCOM Unit-to-Unit NetworkLiebert® iCOM® for Liebert DSE™845.2 U2U Hardware: Cables and Network SwitchPlan wiring runs for U2U com

Installing a Liebert iCOM Unit-to-Unit Network85 Liebert® iCOM® for Liebert DSE™5.3 Wiring for Unit-to-Unit Communications—U2UCooling units come from

Installing a Liebert iCOM Unit-to-Unit NetworkLiebert® iCOM® for Liebert DSE™865.3.1 Wiring a Liebert iCOM U2U NetworkA network switch is required to

Installing a Liebert iCOM Unit-to-Unit Network87 Liebert® iCOM® for Liebert DSE™Wall-Mount Large DisplayOnly large displays can be used for remotely m

Installing a Liebert iCOM Unit-to-Unit NetworkLiebert® iCOM® for Liebert DSE™88Liebert vNSA™The Liebert vNSA is designed to connect multiple Liebert i

External Communication—Building Management Systems, Liebert SiteScan®89 Liebert® iCOM® for Liebert DSE™6.0 EXTERNAL COMMUNICATION—BUILDING MANAGEMENT

User Menu ParametersLiebert® iCOM® for Liebert DSE™907.0 USER MENU PARAMETERSUser menus report general cooling unit operations and status. The user me

User Menu Parameters91 Liebert® iCOM® for Liebert DSE™U102 Temperature Setpoint—Selects a temperature that the cooling unit will maintain by applying