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Liebert® iCOM™ Installer/User Guide Intelligent Communication and Monitoring for Liebert DSE Packaged Solution...
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The products covered by this instruction manual are manufactured and/or sold by Vertiv This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use or disclosure of it without the written permission of Vertiv is strictly prohibited.
3.2.2 Scheduling Condenser-fan Reversal 3.2.3 Scheduling “Sleep” Times for Thermal-management Units 3.3 Setting General Thermal-management Unit Options 3.3.1 Setting Miscellaneous Options 3.3.2 Automatic Restart after Power Failure 3.3.3 Setting Fan Options 3.3.4 Setting Compressor Options Vertiv | Liebert® iCOM™ Installer/User Guide |...
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10.1.3 Updating iCOM Control-board Firmware 10.2 Backing-up, Importing/Exporting and Restoring Display Settings 10.2.1 Resetting display settings to defaults 10.3 Managing access permission and Passwords 10.4 Backing-up and Restoring Control-board Settings 10.5 Managing access permission and Passwords Vertiv | Liebert® iCOM™ Installer/User Guide |...
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13.5.3 U2U Wiring connection 13.5.4 Wiring Cooling Units without Wall-mount Displays 13.5.5 Wiring Cooling Units with Wall-mount Displays Appendices Appendix A: Technical Support and Contacts Appendix B: Setpoints and Alarm Settings by Line ID Vertiv | Liebert® iCOM™ Installer/User Guide |...
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®...
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Unlocked icon = User or service is logged-in and options are accessible. Powering-on iCOM and Logging-in/Unlocking Controls on page 11. Secondary-content panel. When accessing settings/configuration via the menus, the settings display in the right, “secondary” panel. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Table 1.1 Main Display controls and options (continued) Item Description Summary of current unit function. You can customize to show fan speed, cooling, percentages from any installed device, and any physical (sensor) values. Status Dial. Circular display of setpoints and environmental conditions of the unit. See Touchscreen Status Dial on page 9.
Low supply temperature Blue Supply Temp High supply temperature Low remote temperature Blue Average Rack Temp High remote temperature Low remote temperature Blue Max Rack Temp High remote temperature Min Rack Temp Low remote temperature Blue Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Table 1.3 Background color displayed by selected value and threshold limit (continued) Sensor/Value selected Threshold limit Background color High remote temperature Low static pressure Blue Static Pressure High static pressure Outdoor Temp None Green Outdoor Humidity None Green 1.3 Control Header The control header contains the controls to access the user and service settings.
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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. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
“on/closed.” If one is “off/open,” the unit turns off. MONITORING 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.
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. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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.
Setting General Thermal-management Unit Options 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 Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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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 page 87. • Display Upgrade. See Updating iCOM display firmware on page 85.
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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 page 25.
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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...
2.2.1 Silencing an Audible Alarm Touch the screen to silence an audible alarm. If the alarm is non-latching, the alarm silences when the condition clears. NOTE: The audible alarm must be enabled in display options to sound. See Enabling the Audible Alarm Notification on page 53.
On the RUN HOURS panel, touch to check each box in the Total Run Hours column next to the component(s) to reset. The Set to Zero button becomes available. 2. Touch Set to Zero. The total run hours for selected component(s) is set to zero. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
2.6 Viewing Teamwork, Stand-by, and Cascade Status In the main User panel, the Teamwork Mode icon indicates the mode selected, Figure 2.1 below. To view the teamwork details: Touch the Teamwork-mode icon. The teamwork dialog opens displaying the teamwork mode, number of units in stand-by, and number of operating units.
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3 SERVICE OPERATION 3.1 Editing setpoints for the cooling unit Setpoints are the means by which cooling-unit operation is controlled. 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. Setpoints options Fan Control Configuring Fan Setpoints...
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NOTE: Setting this too low causes short-cycling of compressors. Temperature Setpoint Temperature that the unit maintains via cooling. Temperature Setpoint Act Read-only display of adjusted temperature setpoint when one of the following is active: • Temperature compensation • BMS back-up temperature setpoint Vertiv™ | Liebert® iCOM™ Installer/User Guide...
3.1.2 Temperature Control – Temperature Setpoints and Cooling Operation Temperature control refers to the cooling unit’s response to programmed setpoints and sensed room/load conditions. Temperature control is closely-tied to the primary cooling source. Liebert® Thermal- mangement 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).
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Set the temperature deadband to 2. Run time must be more than 3 minutes to prevent a short-cycle of the compressor. Excessive valve oscillation Increase the proportional band and/or increase integration time. or hunting Vertiv™ | Liebert® iCOM™ Installer/User Guide...
3.1.3 Compressor Control by Cooling Requirement Compressor control is directly-linked to temperature control in that the cooling requirement determined by the temperature proportional band determines compressor operation. Depending on the type of cooling unit, the number and type of compressors varies. The following describes compressor operation along the proportional band for the varying compressor options.
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The lead compressor stops when cooling demand decreases to 10%. Figure 3.4 on the facing page illustrates digital-scroll compressor operation with the following setpoint parameters: • 70° setpoint • 8° proportional band • 2° dead band Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Figure 3.4 Compressor control—Dual digital-scroll compressor Description Lead compressor. Lag compressor. Lead and lag compressors. ½ of proportional band. Deadband Tandem Compressor Sets A tandem compressor set consists of one digital-scroll compressor 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 inner coil as shown in the example in Figure 3.6 on the next page.
Temperature Control setpoints panel displays the adjusted setpoint value. 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. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Temperature Compensation options Compensation Type Selects the compensation routine: • No = Temperature compensation routine disabled. • Return = Increases the temperature setpoint when the return-air temperature is too cold. • Supply = Decreases the temperature setpoint when the air-flow capacity approaches 100% and the cold-aisle temperature remains above the setpoint.
The manual (fixed) fan speed may be set via iCOM. • Hard-wired analog input (input-signal types including 4 to 20 mA, 0 to 10 VDC, and 0 to 5 VDC) and a factory-suppled isolator to ensure reliable communication. • Remotely using a Liebert® IntelliSlot® card. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Setting Manual Fan-speed Control via Analog Input Touch , then > Setpoints > Fan Control, set Fan Control Sensor to Manual, then touch Save. 2. Touch , then > Auxiliary Device Setup > Analog Input. 3. On ANALOG INPUTS, touch Customer Analog Inputs to expand it, then touch the analog- input device corresponding to fan-speed control.
Max Speed in Low Noise Mode Sets the maximum speed for the condenser fan during low-noise operation. Max Speed in Normal Mode Sets the maximum speed for the condenser fan during normal or high-efficiency operation. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Noise Reduction Enable/Disable noise reduction. When checked, the schedule is run. When un-checked, the scheduling parameters are ignored. Status Indicates if low-noise operation is active or inactive. Whole Day Selects whole days for which noise-reduction operation is available for the condenser fan. 3.2.2 Scheduling Condenser-fan Reversal Condenser-fan reversal schedules a reversal of the condenser fans, reversing air flow to help remove dust, paper, leaves and such from the suction side of the condenser coil.
Teamwork Control options on page 64. Freecool Capacity Transition Filter Selects how quickly capacity changes between modes of operation to avoid overshooting during the transition. • Only a factory-trained service technician should adjust this setting. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
K11 Active on Selects the action of the activated K11 (warning) relay. Options are: • Dehum = dehumidification is on. • Warning = a warning is active. • Emergency Pwr = emergency power is on. • Freecooling = Freecooling is on. •...
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Sets how quickly the fan speed changes between operating modes. Prevents an instant reaction when fans turn on or off and prevents unstable operation. Max Deceleration Rate Selects the rate and which the fan speed changes during deceleration. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Maximum Fanspeed Maximum speed at which the fan will operate. MIN at CFC for EC Fan Cooling deviation at which the fan will operate at minimum speed. Minimum Fanspeed Minimum speed at which the fan will operate. No Power Fanspeed Speed at which the fans operate when using emergency power.
Q15 Settings options Damper Switch Feedback Timer If output function is Damper and End Switch, the length of time iCOM waits for the feedback signal from the damper motor, that is, if it is open or closed. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Fan Delay for Damper Length of time that must elapse during damper opening/closing. During this span, all functions associated with the on/off state are eligible. Medium Board: Q15 map to K11 Maps the Q15 function to the K11 (warning) relay because a medium-sized board does not have Q15 output.
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4 MANAGING EVENTS: ALARMS, WARNINGS AND MESSAGES Events are notifications of operating status for the cooling unit, its components, and auxiliary devices. All events are recorded in the Event Log, and alarm and warning events are also displayed on the Alarms panel (See Viewing the Event Log on page 22, and Viewing Unit Alarms...
Table 4.2 on page 48 lists the delays and their default settings. • If the notification delay for the event is greater than the delay set for the event group, the group’s delay includes the event’s delay. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Enable Enables/Disables notification. Touch the switch to set On or Off. • When disabled, events are not logged or displayed and visual/audible alarm notifications are not made. Type Logging and notification level of the event. Table 4.1 below describes the event type and notification it generates.
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2 sec/0 – 9999 * HUMIDIFIER PROBLEM 2 sec 2 sec/0 – 9999 * NO CONNECTION w/Unit1 Internal Calc. UNIT X DISCONNECTED Internal Calc. LOSS OF POWER 0 sec CUSTOMER INPUT 1 2 sec 2 sec/0 – 9999 * Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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High condensing pressure Press C1 or C2 GC Low Cond Low condensing pressure Press C1 or C2 GC 1 or 2 Amb Ambient-temperature-sensor failure Sens Fail GC 1 or 2 Amb High/low ambient temperature Temp Limit Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table 4.3 Events specific to Liebert MC Condenser (continued) Event Description GC Temp Sens Fail Refrigerant-liquid-line temperature-sensor failure C1 or C2 GC High Cond High refrigerant-liquid-line temperature Temp C1 or C2 GC Low Cond Low refrigerant-liquid-line temperature Temp C1 or C2 The following events may result from a fan-failure alarm.
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Event is reset when iCOM requests a new startup. Pump differential pressure fell below a lower threshold and pump shut down. PB2 LO DIFF PRESSURE • Event is reset when iCOM requests a new startup. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Table 4.4 Events specific to Liebert EconoPhase (continued) Event Description Pump outlet-refrigerant-temperature fell below a lower threshold and pump shut down. PB2 LO OUTLET TEMP • Event is reset when iCOM requests a new startup. Outlet refrigerant-pressure-sensor failure. Pump shut down. PB2 OUT PRES SEN FAIL •...
Selects when the input triggers an event. Options are: • Opened = events are triggered when the contacts across the corresponding RAD terminal strip are open. • Closed = events are triggered when the contacts across the corresponding RAD terminal strip are closed. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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NOTE: Depending on customization, some events listed in Table 4.6 below may not be available with your system. Table 4.6 Customer-input Options Input Action/Description Smoke Event only. Water Alarm Event only. C PMP Alarm Event only. Flow Alarm Event only. Stdby G Pmp Event only.
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Input Action/Description EC FAN FAULT Event + Set analog output to 10 V. ECO AIRFLOW Event + Reduce Liebert® air economizer air flow. DAMPERSWITCH Damper + End switch. POWER A Event only. POWER B Event only. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
5 U2U NETWORKING iCOM-controlled thermal-management units connected in an Ethernet unit-to-unit (U2U) network are able to efficiently cool and control humidity in the conditioned space by exchanging data in several modes of operation. U2U networking is required to set up and control the following operating features: •...
Troubleshooting Network-settings Issues on page 60. To configure unit-to-unit networking: Touch , then > BMS & Teamwork Setup > U2U Setup. The U2U NETWORK SETTINGS panel opens. 2. Touch the field to edit. The keypad opens. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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3. Type the entry and touch 4. When all fields to edit are updated, touch Save & Restart. NOTE: Depending on the changes made, the Save button updates 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.
NOTE: Depending on the changes made, the Save button updates 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. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
5.2.2 Modifying U2U Network Settings Touch , then > BMS & Teamwork Setup > U2U Setup. The U2U NETWORK SETTINGS panel opens. 2. Touch the setting to edit and make adjustments, then touch 3. Verify that unit-to-unit communication is established, then touch Save. NOTE: Depending on the changes made, the Save button updates to indicate the components that need rebooted or restarted.
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6 TEAMWORK, STAND-BY AND ROTATION FOR COOLING UNITS iCOM Unit-to-unit (U2U) communication via private network and additional hardware (see Networking on page 57) allows the following operating features for the cooling units: • Teamwork • Stand-by (Rotation) • Cascade 6.1 Continuous Control with Virtual Master The Virtual Master function maintains smooth control if group communication is compromised.
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Fan speed at which the next cascaded unit is powered-on. Stop Next Unit @ SYS Fanspeed Fan speed at which the next cascaded unit is powered-off. Unit power-off may be delayed by Cascaded Units Off Delay. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Based on Select the way the sensor readings from each cooling-unit in the group are used to control temperature and humidity. Options are: • Maximum = based on the highest reading from a sensor in the group. • Average = based on the average readings from the sensors in the group. Type Teamwork mode to use for the group.
Manage cooling-unit run time (lead/lag). See Setting a Rotation Schedule on page 67. • Modulate for very low loads to full-design load (to be temperature reactive) by cascading activation of stand-by units (configured when setting-up teamwork mode). Vertiv™ | Liebert® iCOM™ Installer/User Guide...
The U2U network has built-in fail-over conditions that are automatically employed when stand-by units have been assigned: • During single cooling-unit or component failure, a stand-by unit is activated to replace the failed unit. • Alarm event causes unit shut-down, a stand-by unit is activated. If the activated unit also has an alarm event, the next available stand-by unit is activated.
> BMS & Teamwork Setup > Teamwork / Standby. The TEAMWORK/STANDBY panel opens. 3. Touch Unit Rotation. The UNIT ROTATION CONTROL panel displays. 4. Touch Rotate Now, then touch Save. The operating and stand-by units are rotated. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
7 CONFIGURING ECONOMIZER OPERATION Use iCOM to configure the economizer installed on your cooling unit. NOTE: Depending on customization to your cooling system, one of two types of economizer may be installed, Liebert® Fluid Economizer or Liebert® Air Economizer. Menu options differ depending on the type of economizer installed and significant differences are noted when they occur.
72, to adjust the setpoint options, then touch Save. Table 7.1 Economizer property-status indicators Indicator color Definition Green The air or fluid meets the requirements for use. Yellow The air or fluid does not meet requirements and is ineligible for use. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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NOTE: Depending on the type of economizer with your system, all of the options listed may not be available on your iCOM display. Fluid-economizer set-up options DT Between Room and Fluid Type Selects the glycol/chilled-water temperature input used by the comparator circuit to determine if the differential temperature (DT) warrants use of secondary cooling.
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 29, for a description compressor-control methods. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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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).
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 70. Fluid-economizer status options FC Capacity Cooling capacity of the fluid economizer. Freecooling Fluid Temperature Current temperature of the free-cooling fluid. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
8 EXTERNAL MONITORING AND BUILDING-MANAGEMENT SYSTEMS iCOM-controlled cooling units are equipped with Liebert® IntelliSlot™ plug-in slots for optional communication cards to communicate with external monitoring systems including Building Management Systems (BMS), Network Monitoring Systems (NMS) and Liebert® SiteScan™ Web. The Liebert® Mini-Mate is equipped with a Liebert® IntelliSlot™ Unity™ card to send status-monitoring data to iCOM CMS mobile application users and to communicate with external monitoring systems including Building Management Systems (BMS), Network Monitoring Systems (NMS) and Liebert®...
BMS control options BMS Control Fan Using Selects the protocol used for fan-speed control. Values are: • Velocity • Analog Input 1-4 BMS Fanspeed Local Override Enables/Disables local override of the fan-speed set via BMS. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
BMS Timeout Status Indicates whether or not communication between BMS and iCOM is okay. Fan Control Sensor Currently-selected fan-control sensor. Must be set to “Manual” for BMS control. See Configuring Fan Setpoints on page 33. Handshake Sets time-period, in minutes, in which communication between the BMS and iCOM must occur. Maximum Fanspeed Current fan-speed setting (set via fan setpoints or by BMS).
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9 CONFIGURING AUXILIARY DEVICES With iCOM, you can manage and control many devices that work with your thermal-management unit(s). 9.1 Power Monitoring Up to 6 power meters may be connected to each cooling unit. Power meters are factory-programmed to monitor individual components or whole cooling units. For efficient data-center control, power meters provide monitoring of: •...
2. Before you touch a specific analog input, the properties panel lists the inputs along with their configuration status: • Factory Std indicates that the input is configured for a factory-installed component such as a pressure transducer. • Not Config indicates that the input is configurable. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
The analog input is configured. NOTE: The Airflow, Static Pressure and Fluid Flow analog-input settings configure factory options and require special instruction. Contact Vertiv™ Technical Support at 1-800-543-2778. 9.4 Wired Remote Sensors Wired, remote, rack sensors can function as “control” sensors and, subsequently, provide input individually, at the unit level, or at the system level for temperature control and teamwork functions.
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When Unit Remote Sensors Mode is Average, selects the number of sensors used to calculate the average temperature. • If the number selected is smaller than the number of REM Sensors set to Control, only the highest readings are used for the calculation. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
The valve pulse and cooling filter timer can be adjusted to prevent oscillation around the supply setpoint and still allow for rapid cooling-capacity adjustments to compensate for heat load changes. Contact Vertiv™ technical support for adjustments. NOTE: Supply-control air-temperature sensors are required to use Optimized-aisle Teamwork ...
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The CONTROL BOARD UPGRADE panel shows the firmware version of the control board of the cooling unit. It also includes settings to use while performing the upgrade. NOTE: Only personnel who have completed Vertiv™ training should perform a control-board update. The iCOM Service Tool (iST) is required to update control-board firmware. Contact technical support at 1-800-543-2778 for information on control-board updates.
NOTE: USB drives connected to Ports 1 or 2 on the iCOM display are automatically detected and displayed as options for Location selection. 3. Touch the action button in the lower-right corner. A notification indicates that the back-up/restore/import/export is complete. • Remove the USB drive from the port if used. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
10.2.1 Resetting display settings to defaults Return the iCOM display to factory-default settings including panel customization, display network settings, and custom labels. Reset does not affect control-board network settings, setpoints, or alarm thresholds. Touch , then > Backup & Security > Backup and Restore. The BACKUP &...
Default Service password = 5010 NOTE: To change the password, you must use the Service password currently-assigned to unlock the Service menu. Touch , then > Backup & Security > Manage Permissions. The MANAGE PINS panel opens. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
2. Touch the role to change, then touch the Value field for the password to change. The keypad opens. 3. Type a new 4-digit/character password, then touch , and touch Save. The password is saved. • Touch Cancel to discard the change. 10.6 Configuring with the Start-up Wizard Upon initial use of the iCOM display or after resetting to defaults, the iCOM start-up wizard offers to guide you through first-time set up.
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11 PERFORMING DIAGNOSTICS 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. 11.1 Cooling-unit status LED Just below the iCOM touchscreen display is an LED that changes color and flashes on-off indicating cooling-unit status.
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. Diagnostics—Compressor-circuit options Compressor Capacity Enables/Disables compressor capacity during manual/diagnostics mode. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Current differential-pressure reading, where N is the pump number. Pump N Inlet pressure Current inlet-pressure reading, where N is the pump number. Pump N Outlet Pressure Current outlet-pressure reading , where N is the pump number. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Pump N Speed Current pump speed, where N is the pump number. Pump N Test Results Results of board test, where N is the pump number. 11.6 Diagnosing digital-output issues Touch , then > Diagnostic/Service > Diagnostics > Digital Outputs in the Category list.
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12 CUSTOMIZING YOUR ICOM DISPLAY 12.1 Setting general display properties NOTE: You must be logged-in to adjust the settings. See Powering-on iCOM and Logging- in/Unlocking Controls on page 11. Touch , then > Display Options > Display Properties. The DISPLAY PROPERTIES panel opens. 2.
3. Touch an object to select it (highlighted green), touch and drag a handle to re-size the object, see Figure 12.1 on the facing page. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
Figure 12.1 Add/Remove-content icons and Re-sizing handles Item Description Content-adjustment icon Resizing handles Remove-content icon 12.2.3 Adding and Adjusting Content You can add a variety of content to the main display. 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.
The CUSTOM LABELS panel opens. The labels are divided into “categories” that represent the names of menus, sub-menus and screen panels. 3. Locate the category that contains the label(s) to customize that you determined in step 1, and touch to expand it. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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4. In the Custom Text column, touch the text box to edit, make changes and touch See Figure 12.2 below for an example of changing the column names for “Property” and “Value” (in the Analog Inputs panel) to “Input” and “Configuration.” •...
USB port on the rear of the touchscreen display, then navigate to the Custom Labels panel and touch Import. 8. Locate the updated text file in the drop-down list, and touch Import. The dialog closes and the customizations display on the menus and panels that you updated. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
13 HARDWARE INSTALLATION Your unit includes the Liebert® iCOM controller. This section describes the installation of connections and cabling to fully utilize the iCOM features. 13.1 Installing Wired Remote Sensors Up to 10 remote-sensor modules, installed in the monitored racks and connected to the cooling unit, provide control and reference input to iCOM and building-management systems.
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NOTE: Use the non-conductive DIP-switch tool (included) or a similar tool to set switches. Do not insert any metal object into the sensor case. Figure 12.5 DIP-switch opening/DIP switches inside of 2T sensor Item Description Hole in sensor housing Cover removed Vertiv™ | Liebert® iCOM™ Installer/User Guide...
3. Referring to 13.1.1 on page 103 and using the non-conductive tool, set the DIP switches for each sensor to its number in the chain (from sticker applied in step 1). Figure 12.6 below shows a representation of the DIP switches. 4.
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3. Remove the black jumper from pins 1 and 2 on the P3 pin connector, and install it on pins 2 and 3 as shown in Figure 12.8 on the facing page. 4. Replace the sensor cover. The 2T sensor is terminated in the CANbus link. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Figure 12.8 Termination-jumper on 2T circuit board Item Description Position 1 (P3 jumper) Position 2 (P3 jumper) Position 3 (P3 jumper) Unterminated Terminated Rear of sensor, cover removed P3 termination jumper 13 Hardware Installation...
NOTE: Even though your DP Packaged Unit is located outside the conditioned area, the sensor placement still applies. Figure 12.9 Interlacing sensor placement item Description Item Description Unit 1 Cold aisle (front of racks) Unit 2 Hot Aisle (rear of racks) Unit 3 Supply (discharge) temperature sensor Unit 4 Power-distributrion unit Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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To install the sensors on the racks: NOTE: Do not leave sensor probes coiled on top or coiled inside of a rack. Do not install a sensor in the hot aisle, or if a sensor is installed in the hot aisle, make sure that it is set to "reference" to ensure that its readings are not used for fan or cooling control.
NOTE: High-voltage sources much be at-least 12 in. (305 mm) from CAN wires. • Avoid stretching cables. • Avoid using excess cable between sensors. • Make sure that cables have the correct pin-out. Mismatched pins at the RJ2 connection will damage the CAN device. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Figure 12.11 CANbus and ground connection on 2T sensor 2. Terminate the ground wire to a field-installed ground ring in the low-voltage electrical panel, as shown in Figure 12.12 below. 3. Connect the CANbus cable to the cooling unit. On most cooling units, the connection points for the CANbus link are P66 and P67. Figure 12.12 Ground-wire ring connection Item Description...
Adding duplicate sensors will cause sensor communication loss. Figure 12.13 Locating DIP switches in 2T sensor Item Description Hole in sensor housing Cover removed NOTE: Up is on, down is off on the DIP switch. Figure 12.14 DIP switches in 2T sensor Vertiv™ | Liebert® iCOM™ Installer/User Guide...
5 ft. to 15 ft. (1.5 m to 4.5 m) from the cooling unit, Figure 12.15 on the next page. 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 unit.
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Figure 12.15 Placement of the supply-air temperature sensor Item Description Return air Internal temperature/humidity sensor Temperature sensor Supply air Liebert® Thermal Management unit Vertiv™ | Liebert® iCOM™ Installer/User Guide...
13.3.2 Installing aggregated supply-air temperature sensors On systems with large supply-air plenums, up to 5 additional 2T sensors may be connected (via CANbus) in addition to the standard supply-air sensor. iCOM then aggregates the readings and converts to “average” or “maximum” values for supply control. NOTE: The 2T sensors used for supply-air sensor aggregation are identical to the wired-remote sensors and are added in addition to the up-to 10 remote sensors.
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DIP-switch position Sensor number/address CANbus node ID Alternate use Temperature/Humidity Temperature/Humidity Temperature/Humidity Fluid inlet/outlet temperature Fluid inlet/outlet temperature NOTE: Up is on, down is off on the DIP switch. Figure 12.17 DIP switches in 2T sensor Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Terminating the last supply-air sensor on the CANbus link The 2T sensor need not be installed in the alphabetic-order of their address/sensor letter (although it may be easier for later maintenance). However, the last sensor in the chain must be terminated. All others must remain un-terminated.
13.4 Installing Analog-input Devices External sensors and analog devices may be connected to iCOM using an electrical connection on the iCOM control board to a required, factory-supplied plug, harness and terminal strip. (Contact Vertiv™ technical support for parts.) When equipped, devices as follows can be connected to terminals 41, 42, 43 and 44, 45 and 46, or 47 and 48.
Preparing for U2U Group Set-up on page 57, and Configuring U2U Network Settings on page 58. – or – Contact Vertiv™ Technical Support at 1-800-543-2778 or https://www.vertivco.com/en- us/support/. U2U Network Requirements The network must be private: • Isolated from other network traffic.
U2U network configuration/groups. Network communication conflicts and un-reliable display readings will result. NOTE: Before you begin, refer to Preparing for U2U Group Set-up on page 57, and Configuring U2U Network Settings on page 58. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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To connect 2 cooling units with a touchscreen, a network switch is not needed: • Connect a crossover CAT5 cable to the ETH-2 connector on the rear of each display as shown in Figure 12.19 below. Figure 12.19 Connection between only 2 cooling units—no network switch needed Item Description Touchscreen (rear view)
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Figure 12.20 Connecting two or more units with a network switch Item Description Touchscreen (rear view) Ethernet cable (field-supplied) Ethernet cable (factory-supplied) iCOM I/O board Network switch (field-supplied) to ETH-2 on rear of other cooling-unit touchscreeens Vertiv™ | Liebert® iCOM™ Installer/User Guide...
13.5.5 Wiring Cooling Units with Wall-mount Displays NOTE: Cooling units are factory-wired for stand-alone operation. Do not connect the U2U network cabling before setting the U2U network configuration/groups. Network communication conflicts and un-reliable display readings will result. NOTE: Before you begin, refer to Preparing for U2U Group Set-up on page 57, and Configuring U2U...
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APPENDICES Appendix A: Technical Support and Contacts A.1 Technical Support/Service in the United States Vertiv Corporation 24x7 dispatch of technicians for all products. 1-800-543-2378 Liebert 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...
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Appendix B: Setpoints and Alarm Settings by Line ID These tables list the parameters by the line identification assignments employed before the iCOM touchscreen. The tables include range/options of the parameter, the factory-default setting, and a description of the parameter function. The line IDs are not listed in the User or Settings menus, only in the parameter directory.
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Return BMS system via one of the various Intellislot monitoring cards. Sensor Manual This read-only value indicates if the Liebert iCOM controller is setup in a Optimized Aisle configuration. To enable optimized aisle via the iCOM display, Optimized Disabled the Supply Air sensor must be set to control the cooling capacity and the...
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Table B.2 Service-menu Setpoints by Line ID Supply Sensor Selects which sensor will be controlling/influencing the cooling capacity. Return Cooling Capacity is either the Chilled Water Valve, Compressor, FreeCooling Temperature Return S102 Sensor Valve, or Air Economizer. Unloading type compressors can be set to any Control Sensor Sensor Remote...
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If a sensor other than the Sensor Return Sensor return sensor is selected, the Liebert iCOM will calculate the corresponding Sensor RH% based on that sensors actual temperature. Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.2 Service-menu Setpoints by Line ID (continued) Dew Point 41 - 65 ◦F 48 °F Selects a humidity level that the cooling unit will maintain by removing or Setpoint 5.0 - 18.3 ◦C 8.9 °C adding moisture to the air. The humidity setpoint will either be set in percent S125 RH or as a Dew Point value depending on what the humidity control type is Humidity...
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Sets the type of control the unit will use to control fan speed. PI control gain S148 Temperature is set in the Temp Prop/Integral parameter. PI control will operate the fan Control Type Adaptive PID Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.2 Service-menu Setpoints by Line ID (continued) speed so that the actual temperature of the fan control sensor is equal to the fan temp setpoint. If PROPORTIONAL only is selected, the fan will change "ONLY" based on the deviation from setpoint which will allow the actual temp to settle higher than setpoint.
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STD to the value set in the Analog Output high limit. Return Sets the temperature differential below the high supply and high return S16A High Temp Limit 0 °F / +10 °F 2 °F Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.2 Service-menu Setpoints by Line ID (continued) temperature limit where the fan speed would increase from fanspeed Approach at 0 K / +5.5 K 1.1 K setpoint STD to fanspeed MAX. FC / AirEco 0 = No S16B 0 (No) Sets the selection to decouple the fan output from the call for cooling.
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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. SP Sensors in S198 1 - 32 Sets the number of sensors used when averaging sensors in the teamwork. Avg for TW Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.2 Service-menu Setpoints by Line ID (continued) This parameter determines what action to take if the static pressure sensor fails (non-teamwork). If "SP OFF" is selected, then the control will use S146 Operation on SP Off "Fan Control Sensor" to control the fan when the sensor is lost. If "Freeze S199 SP Off Sensor Failure...
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Humidity 70.0% 99.0 % Humidity Alarm. Sensor A 1.0 - Allows a user to adjust the point at which the actual Sensor A humidity activates a Low U211 Humidity 30.0% 99.0 % Humidity Alarm. Sensor Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.3 User-menu Alarm Settings by Line ID (continued) Line Parameter Default Range Description Name Setting Supply Disabled Enables or disables the supply sensor alarms. When enabled, the supply temperature U213 Sensor Disabled Enabled value will be compared to a high and low setting. Alarms 34 - 210 High Supply...
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55 °F 1.0 - 99.0 °C Alarm Sets the temperature threshold when Sensor A High/Low S206 Temperature alarm will occur Sensor A High 34 - 210 °F Temperature 90 °F 1.0 - 99.0 °C Alarm Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Sensor A Low 1.0 - 99.0% 30.0% Humidity Alarm Sets the temperature threshold when Sensor A High/Low Humidity S207 alarm will occur Sensor A High 1.0 - 99.0% 70.0% Humidity Alarm...
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1 = Shutdown Selects function to occur if the temperature control sensor fails. Full S22A Operation on = Full CFC Hold = hold last CFC 0 = Full Sensor Failure 0 (Full) 1 = Hold Cooling Mode Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting 0 = Smoke 1 = Water Alarm 2 = C PMP Alarm 3 = Flow Alarm 4 = Stdby G Pump 5 = Stdby Unit 6 = C-Input 1 7 = C-Input 2 8 = C-Input 3...
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Closed S23A, Open open or closed open/closed (Cont'd) Event Delay Time 10 - 9999 sec 10 sec (sec) Disabled Event Enabled Enabled S236 Enabled Main Fan Overload MESSAGE Event: MAIN FAN WARNING ALARM OVERLOAD ALARM Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Initial Loss of 10 - 600 sec 30 sec Airflow Delay Event Delay Time 10 - 9999 sec 30 sec (sec) S237 Loss of Airflow Disabled Event Enabled Enabled...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Event Delay Time ‒ ‒ (sec) Disabled Event Enabled Enabled S251 Enabled Circuit 1 High Pressure MESSAGE Event: CIRCUIT 1 WARNING ALARM HIGH PRESS ALARM Event Delay Time ‒...
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Smoke Detected MESSAGE Event: SMOKE WARNING ALARM DETECTED ALARM Event Delay Time 10 - 9999 sec 10 sec (sec) Disabled Event Enabled Enabled S264 Enabled Water Under Floor MESSAGE Event: WATER WARNING ALARM UNDER FLOOR ALARM Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Event Delay Time 10 - 9999 sec 10 sec (sec) Disabled Event Enabled Enabled S265 Enabled Cond Pump High Water Event: COND MESSAGE PUMP-HIGH WARNING ALARM...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Event Delay Time 10 - 9999 sec 10 sec (sec) Disabled Event Enabled Enabled S279 Enabled Call Service MESSAGE Event: CALL WARNING ALARM SERVICE ALARM Event Delay Time...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Event Delay Time 10 - 9999 sec 10 sec (sec) Disabled Event Enabled Enabled S290 Enabled Emergency Power Event: MESSAGE EMERGENCY WARNING WARNING POWER ALARM Event Delay Time...
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Event: LOW DEW WARNING WARNING POINT ALARM Event Delay Time 10 - 9999 sec 30 sec (sec) Disabled Event Enabled Enabled S2A4 Enabled High Dew Point Sensor A Event: HI DEW MESSAGE POINT SENSOR WARNING WARNING ALARM Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Event Delay Time 10 - 9999 sec 30 sec (sec) Disabled Event Enabled Enabled S2A5 Enabled Low Dew Point Sensor A Event: LOW DEW MESSAGE POINT SENSOR WARNING...
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OUT OF RANGE ALARM Event Delay Time 10 - 9999 sec 150 sec (sec) Disabled Event Enabled Disabled S2C1 Enabled Static Pressure 3 Out of Range MESSAGE Event: STATPR 3 WARNING WARNING OUT OF RANGE ALARM Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Event Delay Time 10 - 9999 sec 150 sec (sec) Disabled Event Enabled Disabled S2C2 Enabled Static Pressure 4 Out of Range MESSAGE Event: STATPR 4 WARNING WARNING...
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Event: COMP 1B WARNING ALARM HIGH TEMP ALARM Event Delay Time 10 - 9999 sec 10 sec (sec) Disabled Event Enabled Enabled S2D7 Enabled Compressor 2A High Temperature MESSAGE Event: COMP 2A WARNING ALARM HIGH TEMP ALARM Vertiv™ | Liebert® iCOM™ Installer/User Guide...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Event Delay Time 10 - 9999 sec 10 sec (sec) Disabled Event Enabled Enabled S2D8 Enabled Compressor 2B High Temperature MESSAGE Event: COMP 2B WARNING ALARM HIGH TEMP...
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Table B.4 Service-menu Alarm Settings by Line ID (continued) Default Line ID Parameter Name Range Description Setting Phase Loss MB01 0 = No 1 (Yes) shuts unit down 1 = Yes Event Delay Time 10 - 9999 sec 10 sec (sec) S2F9 Power 1 Phase Loss...
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B.3 Line IDs for Cascade-operation Parameters Table B.5 Service-menu Cascade Parameters by Line ID Line Parameter Default Range Description Name Setting User may select the method to which the next standby unit will stage ON. No = disabled Yes = enabled via TW Mode 1 Cool/Heat = ...
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