Vertiv Liebert iCOM Installation and maintenance instructions

Liebert®
iCOM™
Installer/User Guide
Intelligent Communication and Monitoring forLiebertDSE Packaged
Solution

Vertiv™ | Liebert® iCOM™Installer/User Guide
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If you encounter any installation or operational issues with your product, check the pertinent
section of this manual to see if the issue can be resolved by following outlined procedures.
Visit https://www.VertivCo.com/en-us/support/ for additional assistance.
The information contained in this document is subject to change
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TABLE OF CONTENTS
1 Getting Started with iCOM 7
1.1 Touchscreen Display and User Interface 7
1.2 Touchscreen Status Dial 9
1.2.1 Dial Background-color Status Indication 10
1.3 Control Header 11
1.3.1 Powering-on iCOM and Logging-in/Unlocking Controls 11
1.3.2 Powering-on the Thermal Management Unit 11
1.3.3 Powering-off the Thermal Management Unit 13
1.3.4 Logging Out 13
1.3.5 Calibrating the Touchscreen 13
1.3.6 Setting the Date and Time 14
1.3.7 Searching 14
1.4 Using Context-sensitive Help 14
1.5 About iCOM Version 14
1.6 Accessing the User, Service and Advanced Menus 15
1.7 User Menu 15
1.8 Service Menu 16
2 User Operation 19
2.1 Viewing and Editing setpoints for the cooling unit 19
2.1.1 Editing Temperature Setpoints 19
2.2 Viewing Unit Alarms 19
2.2.1 Silencing an Audible Alarm 21
2.2.2 Acknowledging Alarms 21
2.3 Viewing the Event Log 22
2.4 Viewing Sensor Data 22
2.5 Managing Run Hours for a Component 22
2.5.1 Setting run hours to zero 22
2.6 Viewing Teamwork, Stand-by, andCascade Status 23
3 Service Operation 25
3.1 Editing setpoints for the cooling unit 25
3.1.1 Configuring Temperature Setpoints 25
3.1.2 Temperature Control –TemperatureSetpointsandCooling Operation 27
3.1.3 Compressor Control by Cooling Requirement 29
3.1.4 Setting temperature compensation 32
3.1.5 Configuring high/low-limit setpoints 33
3.1.6 Configuring Fan Setpoints 33
3.1.7 Manual Fan-speed Control 34
3.1.8 Automatic Fan-speed Control 35
3.2 Scheduling Condenser and Cooling-unit Tasks 36
3.2.1 Scheduling Condenser Low-noise Operation 36
3.2.2 Scheduling Condenser-fan Reversal 37
3.2.3 Scheduling “Sleep” Times for Thermal-management Units 37
3.3 Setting General Thermal-management Unit Options 38
3.3.1 Setting Miscellaneous Options 38
3.3.2 Automatic Restart after Power Failure 39
3.3.3 Setting Fan Options 39
3.3.4 Setting Compressor Options 41
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3.3.5 Setting Q15 options 42
4 Managing Events: Alarms,WarningsandMessages 45
4.1 Event Properties 45
4.2 Enabling Events and EditingEventSettings 46
4.3 Selecting Event Type and SettingAlarm/WarningNotification 46
4.4 Enabling the Audible Alarm Notification 53
4.5 Remote-alarm Device and Customer-input Events 54
4.5.1 Setting-up Customer-input Events 54
5 U2U Networking 57
5.1 Preparing for U2U Group Set-up 57
5.2 Configuring U2U Network Settings 58
5.2.1 Troubleshooting Network-settings Issues 60
5.2.2 Modifying U2U Network Settings 61
6 Teamwork, Stand-by and RotationforCoolingUnits 63
6.1 Continuous Control with Virtual Master 63
6.2 Teamwork Modes 63
6.2.1 No Teamwork—Multiple Zones in One Room 65
6.2.2 Teamwork Mode 1—Parallel Operation 65
6.2.3 Teamwork Mode 2—Independent Operation 65
6.2.4 Teamwork Mode3—Optimized-aisle Operation 65
6.3 Assigning Cooling Units to Stand-by (Lead/Lag) 66
6.4 Setting a Rotation Schedule 67
6.4.1 Manually Rotating the Operating and Stand-by Units 68
7 Configuring Economizer Operation 69
7.1 Fluid Economizers 69
7.1.1 Overriding Fluid Economizer Operation 70
7.1.2 Setting-up Fluid Economizer Operation 70
7.1.3 Temperature Control with a Fluid Economizer 72
7.1.4 Viewing Fluid Economizer Statuses 74
8 External Monitoring andBuilding-managementSystems 75
8.1 Building Management Systems Operation 75
8.1.1 Adjusting Monitoring (IntelliSlot Card) Settings 76
8.1.2 Setting BMS Control Settings 76
8.1.3 Setting BMS Back-up Setpoints 77
9 Configuring Auxiliary Devices 79
9.1 Power Monitoring 79
9.2 Fluid-temperature Monitoring 80
9.3 Configuring Analog-input Devices 80
9.4 Wired Remote Sensors 81
9.5 Supply Sensors 83
10 Administering Firmware, Settings and Security 85
10.1 iCOM firmware upgrades 85
10.1.1 Compatibility with earlier versions of iCOM 85
10.1.2 Updating iCOM display firmware 85
10.1.3 Updating iCOM Control-board Firmware 85
10.2 Backing-up, Importing/Exporting and Restoring Display Settings 86
10.2.1 Resetting display settings to defaults 87
10.3 Managing access permission and Passwords 87
10.4 Backing-up and Restoring Control-board Settings 87
10.5 Managing access permission and Passwords 88
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10.6 Configuring with the Start-up Wizard 89
11 Performing Diagnostics 91
11.1 Cooling-unit status LED 91
11.2 Enabling manual mode for diagnostics 91
11.2.1 Disabling diagnostics manual mode 91
11.3 Diagnosing evaporator-fan issues 92
11.4 Diagnosing compressor-circuit issues 92
11.4.1 Resetting High-pressure Alarm Code 93
11.4.2 Resetting Low-pressure Alarm Code 94
11.4.3 Resetting High-temperature Alarm Counter 94
11.4.4 Resetting EEV Battery-failure Counter 94
11.5 Diagnosing EconoPhase issues 94
11.6 Diagnosing digital-output issues 95
11.7 Diagnosing analog-output issues 95
11.8 Diagnosing customer-input issues 95
12 Customizing Your iCOM Display 97
12.1 Setting general display properties 97
12.2 Customizing main-display views 98
12.2.1 Moving Content 98
12.2.2 Re-sizing Content 98
12.2.3 Adding and Adjusting Content 99
12.2.4 Removing Content 100
12.3 Customizing parameter and field labels 100
12.3.1 Exporting, Importing and Customizing labels using a text editor 102
13 Hardware Installation 103
13.1 Installing Wired Remote Sensors 103
13.1.1 Setting DIP switches and labeling 2T sensors 103
13.1.2 Terminating the last sensor on the CANbus link 105
13.1.3 Installing 2T sensors in the racks to monitor 108
13.1.4 Connect the CANbus cable and ground 110
13.2 Installing a Fluid-temperature Sensor 112
13.3 Installing Supply-control Sensors 113
13.3.1 Installing the supply-air temperature sensor 113
13.3.2 Installing aggregated supply-air temperature sensors 115
13.4 Installing Analog-input Devices 118
13.5 Installing the U2U Network 118
13.5.1 Required network equipment 118
13.5.2 Plan wiring runs 119
13.5.3 U2U Wiring connection 119
13.5.4 Wiring Cooling Units without Wall-mount Displays 120
13.5.5 Wiring Cooling Units with Wall-mount Displays 123
Appendices 125
Appendix A: Technical Support and Contacts 125
Appendix B: Setpoints and Alarm Settings by Line ID 127
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1 GETTING STARTED WITH ICOM
The Liebert® iCOM offers the highest capability for unit control, communication, and monitoring of
Liebert® Thermal Management units. It is available factory-installed on new units and assemblies or may
be retrofitted in existing units.
1.1 Touchscreen Display and User Interface
The Liebert® iCOM touchscreen and user interface speeds set up and installation 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, or consider using a stylus when interacting
with the touchscreen.
•User and service menus are password-protected to prevent unauthorized changes to cooling-
unit operation.
•The touchscreen is back-lit and auto-dims after a period on non-use, then turns off. Touch the
screen to illuminate the main screen.
•iCOM ships with default settings for efficient and effective operation of most cooling-units and
is easily configured to meet any need.
•iCOM menus and displays are based on the options installed on the cooling units that it
monitors and manages.
1 Getting Started with iCOM 7

Figure 1.1 iCOM main display
Item Description
1 Alarms present. Displays the number of active alarms.
2 Menu icon. When unlocked, displays a menu for user or service options depending on which icon is selected.
3
User icon. When selected, the user options are available on the main display and menu.
NOTE: You must unlock the display with the User PIN to access the menu and options.
See Powering-on iCOM and Logging-in/Unlocking Controls on page 11.
4
Service icon. When selected, the service options are available on the main display and menu.
NOTE: You must unlock the display with the Service PIN to access the menu and options.
See Powering-on iCOM and Logging-in/Unlocking Controls on page 11.
5
Advanced icon. When 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 and read-only options.
See Powering-on iCOM and Logging-in/Unlocking Controls on page 11.
6Cooling-unit parameters. Status display of selected system parameter settings. See Adding and Adjusting Content on page
99
7 Unit Identification. You may customize the unit name up to 6 characters/numbers.
8 Search icon. Open the keyboard to search for controls and setting locations. See Searching on page 14.
9 Date/Time.
10
Lock/Unlock icon. Indicates whether or not the user and service options are accessible.
•Locked icon = display is read-only
•Unlocked icon = User or service is logged-in and options are accessible.
See Powering-on iCOM and Logging-in/Unlocking Controls on page 11.
11 Secondary-content panel. When accessing settings/configuration viathe menus, the settings display in the right,
“secondary” panel.
Table 1.1 Main Display controls and options
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Item Description
12 Summary of current unit function. You can customize to show fan speed, cooling, percentages from any installed device, and
any physical (sensor) values.
13 Status Dial. Circular display of setpoints and environmentalconditions of the unit. See Touchscreen Status Dial on page 9.
14 Teamwork-mode icon. In a panel with “Status” content, the Teamwork Mode icon indicates the mode selected. For details
and descriptions of the teamwork controls, see Teamwork Modes on page 63.
15 Control header. Controls to access the user and service menus. See Control Header on page 11.
16 Status Header. Displays the alarm status, unit identification, and the current date and time.
Table 1.1 Main Display controls and options (continued)
1.2 Touchscreen Status Dial
The dial in the primary-control panel displays read-only control sensors, setpoints, and environmental
conditions for unit status at a glance. See Figure 1.2 below.
The center of the dial displays sensor readings and changes color according to alarm thresholds as the
readings rise and fall, see Dial Background-color Status Indication on page 10.
Touching the center of the dial cycles through a set of sensor settings, and you can select the readings
displayed, see Adding and Adjusting Content on page 99.
Figure 1.2 Dial sections
Item Description
1
Control sensor and its setpoint. The sensors and setpoints displayed depend on the configuration of your unit.
You may see only temperature-control, or 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
sensor and setpoint, as shown in Dial sections on page 9.
2 Single or multiple sensor readings. Cycle through readings by touching the displayed reading.
Table 1.2 Dial Sections
1 Getting Started with iCOM 9

1.2.1 Dial Background-color Status Indication
The background color of the dial indicates whether or not the unit is powered-on, and it also responds to
threshold settings of the control-sensor reading, see Figure 1.3 below. Table 1.3 below describes the
background color displayed if the selected sensor reading has threshold limits set.
Figure 1.3 Dial background colors
Item Description
1 Sensor reading is within threshold limits.
2 Unit is powered-off.
3 Sensor reading is above threshold limit or the unit is in an "alarm" condition.
4 Sensor reading is below threshold limit
Sensor/Value selected Threshold limit Background color
Return Temp
None Blue
High return temperature Red
Return Humidity
Low return humidity Blue
High return humidity Red
Dew Point
Low dew point Blue
High dew point Red
Supply Temp
Low supply temperature Blue
High supply temperature Red
Average Rack Temp
Low remote temperature Blue
High remote temperature Red
Max Rack Temp
Low remote temperature Blue
High remote temperature Red
Min Rack Temp Low remote temperature Blue
Table 1.3 Background color displayed by selected value
and threshold limit
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Sensor/Value selected Threshold limit Background color
High remote temperature Red
Static Pressure
Low static pressure Blue
High static pressure Red
Outdoor Temp None Green
Outdoor Humidity None Green
Table 1.3 Background color displayed by selected value
and threshold limit (continued)
1.3 Control Header
The control header contains the controls to access the user and service settings. The display is locked
when started initially and when restarted after a period of inactivity.
1.3.1 Powering-on iCOM and Logging-in/Unlocking Controls
iCOM is powered-on when power is switched on at the cooling unit’s disconnect switch and you activate
the display by touching it.
iCOM is locked when started and also locks after a period of inactivity to prevent unauthorized changes. A
4-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: The factory-default inactivity period is 1 minute. To change the inactivity period, see Setting
general display properties on page 97.
NOTE: The factory-default passord for user and service login are provided. We recommend you change
passwords as necessary to prevent unauthorized changes. See Managing access permission and
Passwords on page 88.
•Default User password = 1490
•Default Service password = 5010
To unlock the controls:
1. On the header, touch .
The keypad opens.
2. Touch the numbers/characters for your password, then touch .
Depending on the password entered and your level of access, the User and/or Service options
view-only access to the Advanced menu are accessible. See Accessing the User, Service and
Advanced Menus on page 15.
1.3.2 Powering-on the Thermal Management Unit
NOTE: Depending on the operating state, there are start/stop priority switches that may prevent the
cooling unit from operating even though power to the unit is switched on and you have turned it on via
iCOM.
The cooling unit operates only when all switches are closed. For example, even though you have
turned-on the unit through iCOM, if the BMS remote-monitoring system is sending a command to turn-
off the unit, the cooling unit remains off.
NOTE: You must be logged-in to access the menu options. See Powering-on iCOM and Logging-
in/Unlocking Controls on page 11.
1 Getting Started with iCOM 11

To power-on the 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 iCOM display
Item Description
1 Current status of the unit. See Cooling-unit statuses displayed on page 12.
2 Teamwork icon. See Viewing Teamwork, Stand-by, andCascade Status on page 23.
Unit Status
Text Description
ALARM OFF An alarm forced the unit to turn off. See Viewing Unit Alarms on page 19.
MANUAL Controlled by a service technician. See Enabling manual mode for diagnostics on page 91.
DISPLAY OFF Unit is turned Off at the iCOM display. See Powering-on the Thermal Management Unit on page 11.
ALARM
STANDBY In stand-by because of an active alarm on the unit. See Viewing Unit Alarms on page 19.
STANDBY In standby because of service-menu setting. See Assigning Cooling Units to Stand-by (Lead/Lag) on page 66.
TIMER OFF Scheduled on a timer and is in “sleep” mode waiting for the next start interval. See Scheduling Condenser and
Cooling-unit Tasks on page 36.
UNIT ON Operating normally without alarms or warnings.
WARNING ON Active warning, but still operating. See Viewing Unit Alarms on page 19.
ALARM ON Active alarm, but still operating. See Viewing Unit Alarms on page 19.
Table 1.4 Cooling-unit statuses displayed
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Unit Status
Text Description
TIMER Scheduled on a timer to operate, and is in operating mode. See Scheduling Condenser and Cooling-unit Tasks on
page 36.
REMOTE OFF
Turned-off by remote shutdown terminal.
Occurs when a normally-closed set of 24-V contacts opens. The Remote On/Off and Display On/Off switches are in
series, and the cooling unit will only turn-on if both switches are “on/closed.” If one is “off/open,” the unit turns off.
MONITORING
OFF
Turned-off by remote monitoring system.
Check the remote monitoring device or call Vertiv™ technical support for assistance.
BACK-DRAFT Unit is non-operational, but EC fan is operating as a back-draft damper.
RESTART
DELAY Not yet operational 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 access the menu options. See Powering-on iCOM and Logging-
in/Unlocking Controls on page 11.
1. Touch , then >Turn Unit Off.
The TURN UNIT OFF panel opens.
2. Touch Turn Unit Off.
The unit begins a power-off countdown then powers-off.
1.3.4 Logging Out
Log-out occurs automatically when the display back light turns-off for inactivity.
NOTE: The factory-default inactivity period is 1 minute. To change the inactivity period, see Setting
general display properties on page 97
•To log-out manually, touch the lock icon.
The icon indicates “locked.”
1.3.5 Calibrating the Touchscreen
Use a firm touch or a stylus for the best response. To improve interaction with quicker and more-accurate
touch response, calibrate the touchscreen.
1. On the User menu, touch Display Options >Display Properties.
2. On the UNIT DISPLAY panel, touch Calibrate Screen and follow the prompts to calibrate.
•If you cannot access the calibration because of screen response, continue with step 3.
3. At the cooling-unit disconnect switch, power-off the unit and then back on.
4. Touch your finger to the screen and hold it there while the display boots.
5. When the LED begins flashing, remove your finger.
Cross-hairs appear in each corner and in the center of the display.
6. Touch the center of each cross-hair ONCE ONLY. (Touching more than once interrupts the
calibration and you must start over at step 3.)
Cross-hairs disappear and the display reboots when calibration is complete.
1 Getting Started with iCOM 13

1.3.6 Setting the Date and Time
The correct date and time is critical for warnings, alarms, and scheduling.
1. Touch , then > Display Options >Display Properties >Date &Time.
2. Touch the date field, use the arrows to select the date, and touch OK.
– or –
Touch the time field, use the arrows to set the time, and touch OK.
3. Select the date and time format if necessary.
4. Touch Save.
1.3.7 Searching
When logged-in, you can use the display search to find the location of settings options based on a term,
service code, or parameter. You can also search by the line ID used in the iCOM before the touchscreen
model. For a listing of the line IDs, see Setpoints and Alarm Settings by Line ID on page 127.
NOTE: You must be logged-in to access the display search. See Powering-on iCOM and Logging-
in/Unlocking Controls on page 11.
1. In the control header, touch the search field.
The keyboard opens.
2. Type the term and touch .
A list of locations that contain the searched term opens.
3. To go to a listed location, touch an item, then touch Go.
The panel for the selected location opens.
– or –
To view the service codes and parameter entries related to the searched term, touch View
Parameter Directory Entries (the number of related entries is included in the option).
The Parameter Directory opens. You may further refine the search in the directory.
1.4 Using Context-sensitive Help
Touching the Help icon, , on the right-hand side of the display opens the Help drawer with
information about the panel or dialog currently on the display.
You can use search and the topic index to find further information.
To close the Help drawer, touch the close arrow, .
1.5 About iCOM Version
The version, build, and other firmware information for the iCOM display board may be helpful when
servicing or troubleshooting. To locate the firmware version of the iCOM control board, see Updating
iCOM Control-board Firmware on page 85.
•Touch , then > About.
The ABOUT panel opens.
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1.6 Accessing the User, Service and Advanced Menus
iCOM operating functions that monitor and control a cooling unit are accessed via the User and Service
menus.
NOTE: You must be logged-in to access the menu options. See Powering-on iCOM and Logging-
in/Unlocking Controls on page 11.
1. To access a menu, touch the icon for the menu you want, , or , in the control
header, see Control Header on page 11.
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 view system and unit statuses and edit some setpoints.
User menu options
Setpoints
Opens the SETPOINTS panel. See Viewing and Editing setpoints for the cooling unit on page 19.
Active Alarms
Opens the ALARMS panel. See Viewing Unit Alarms on page 19.
Event Log
Opens the EVENT LOG panel. See Viewing the Event Log on page 22.
Sensor Data
Opens the SENSOR DATA panel. See Viewing Sensor Data on page 22.
Display Options
Opens the Display Options menu:
•Customize Layout—see Customizing main-display views on page 98.
•Custom Labels—see Customizing parameter and field labels on page 100.
•Date & Time—see Setting the Date and Time on page 14.
Total Run Hours
Opens the RUN HOURS panel. See Managing Run Hours for a Component on page 22.
EconoPhase
Opens the ECONOPHASE - PUMP MODE panel.
About
Opens the ABOUT panel. See About iCOM Version on page 14.
Turn Unit On/Off
Depending on unit’s status, open the TURN UNIT ON or TURN UNIT OFF dialog. See Powering-on
the Thermal Management Unit on page 11, or Powering-off the Thermal Management Unit on page
13.
1 Getting Started with iCOM 15

1.8 Service Menu
The service menu lets you view and edit setpoints and perform many other functions.
Service Menu Options
Setpoints
Opens the SETPOINTS panel. See Editing setpoints for the cooling unit on page 25,.
Diagnostic/Service
Opens the Diagnostic / Service menu:
•Diagnostics—see Performing Diagnostics on page 91.
•EconoPhase View—Opens the ECONOPHASE - PUMP MODE panel.
•Technical Support—contact information for the cooling unit and iCOM display.
Alarm/Event Setup
Opens the ALARMS & EVENTS panel. See Managing Events: Alarms,WarningsandMessages on
page 45,.
BMS & Teamwork Setup
Opens the BMS & Teamwork Setup menu:
•U2U Setup—See Configuring U2U Network Settings on page 58.
•Teamwork/Standby—See Teamwork, Stand-by and RotationforCoolingUnits on page
63.
•BMS Setup—See Building Management Systems Operation on page 75.
Scheduler
Opens the SCHEDULER panel. See Scheduling Condenser and Cooling-unit Tasks on page 36.
Options Setup
Opens the OPTIONS SETUP panel. See Setting General Thermal-management Unit Options on
page 38.
Auxiliary Device Setup
Opens the Auxiliary Device Setup menu:
•Sensors—See Wired Remote Sensors on page 81.
•Analog Input—See Configuring Analog-input Devices on page 80.
•Modbus Devices
•CapCom
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Backup & Security
Opens the Backup & Security menu:
•Display Backup and Restore. See Backing-up, Importing/Exporting and Restoring Display
Settings on page 86.
•Control Backup and Restore. See Backing-up and Restoring Control-board Settings on
page 87.
•Display Upgrade. See Updating iCOM display firmware on page 85.
•Control Upgrade. See Updating iCOM Control-board Firmware on page 85.
•Manage Permissions. See Managing access permission and Passwords on page 88.
Turn Unit On/Off
Depending on unit’s status, open the TURN UNIT ON or TURN UNIT OFF dialog. See Powering-on
the Thermal Management Unit on page 11, or Powering-off the Thermal Management Unit on page
13.
1 Getting Started with iCOM 17

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2 USER OPERATION
2.1 Viewing and Editing setpoints for the cooling unit
NOTE: User-level access allows viewing and editing only a limited number of setpoints. To view or
adjust all setpoints, you must have service-level access. See Editing setpoints for the cooling unit on
page 25.
NOTE: Depending on the type of thermal-managment unit, included components, and control settings
of your system, the options on your iCOM display may differ.
2.1.1 Editing Temperature Setpoints
1. Touch , then > Setpoints >Temperature Control.
The TEMPERATURE CONTROL secondary panel opens.
2. Refer to User temperature setpoint options on page 19, Temperature Control –
TemperatureSetpointsandCooling Operation on page 27, and Compressor Control by
Cooling Requirement on page 29 to adjust the setpoint options, then touch Save.
The setpoint is updated.
•Touch Cancel to discard the changes.
NOTE: Depending on the type of thermal-managment unit, included components, and control settings
of your system, all of the options listed may not be available on your iCOM display.
User temperature setpoint options
BMS Backup Temp Setpoint
Selects a temperature setpoint that activates in the event of a BMS timeout. The BMS timer must be
configured for this setpoint to activate. See Setting BMS Back-up Setpoints on page 77.
Optimized Aisle Enabled
Read-only. Indicates that iCOM is configured for optimized-aisle operation. See Teamwork Mode3—
Optimized-aisle Operation on page 65.
Temperature Control Sensor
Selects sensor that controls cooling. Values are:
•Supply Sensor = Temperature control is based on maintaining the temperature of the
discharge air from the cooling unit. See Supply Sensors on page 83.
•Remote Sensor = Temperature control is based on the temperature reading(s) from wired
remote sensor(s). See Wired Remote Sensors on page 81.
•Return Sensor = Temperature control is based on maintaining the temperature of the air
returning to the cooling unit.
Temperature Setpoint Act
Read-only display of adjusted temperature setpoint when one of the following is active:
•Temperature compensation
•BMS back-up temperature setpoint
•Customer-input setpoint (remote-alarm device)
Temperature Setpoint
Temperature that the unit maintains via cooling/reheat.
2.2 Viewing Unit Alarms
The ALARMS panel lists active alarm and warning events. Table 2.1 on the next page describes the type
and state of the alarm shown by indicator dots.
2 User Operation 19

Indicator Description
Yellow dot Warning event.
Red dot Alarm event.
Circle Event condition has cleared, but still must be acknowledged. See Acknowledging Alarms on page 21.
Table 2.1 Alarm status/type indicators
To view alarms:
1. Touch , then > Alarms.
The ALARMS panel opens.
2. Touch an alarm to display the ALARM DETAILS panel.
Alarm fields
Alarm
Name of the event.
Date
Date event was logged.
Time
Time event was logged
Alarm-detail fields
Alarm
Name of the event.
Alarm Type
Number representing the event type.
•1 = Warning
•2 = Alarm
Date/Time
Date and time the event was logged.
Duration
Time elapsed since event was logged.
Threshold
Sensor-reading at which an event is triggered.
Unit
Cooling unit to which the alarm applies.
Value
The current value to which the threshold is compared.
Vertiv™ | Liebert® iCOM™Installer/User Guide
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