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Precision Cooling
For Business-Critical Continuity™
® ™
Liebert iCOM
User Manual - Intelligent Communications & Monitoring
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TABLE OF CONTENTS 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 LIEBERT ICOM DISPLAY COMPONENTS AND FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2.1 Navigating Through the Liebert iCOM Menus . . . . . . . . . . . . . . . . . . . . . . . .
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3.9 Next Maintenance Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.9.1 Calculation of Next Maintenance and Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 4.0 TEAMWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 4.1 Teamwork Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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FIGURES Figure 1 Liebert iCOM components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 Liebert iCOM display components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Figure 3 Status menu, large display, graphical view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 4 Liebert iCOM default screen symbols . . . . . . .
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TABLES Table 1 Keyboard icons and functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Table 2 User menu icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table 3 Service menu icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 4 Reheat configuration types.
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Introduction 1.0 INTRODUCTION ™ The Liebert iCOM control offers the highest capabilities in unit control, communication and moni- toring of Liebert mission-critical cooling units. Liebert iCOM may be used to combine multiple cooling units into a team that operates as a single entity, enhancing the already-high performance and efficiency of Liebert’s units. Liebert iCOM is available as a factory-installed assembly or may be retrofitted on existing products with SM, AM or AG controls. Large grap
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Liebert iCOM Display Components and Functions 2.0 LIEBERT ICOM DISPLAY COMPONENTS AND FUNCTIONS The small and the large display have a common key layout, as shown in Figure 2. Figure 2 Liebert iCOM display components Liquid Crystal Display LED Status Indicators (top LED is red or flashing red; bottom LED is green or amber) ? ESC Large Liebert iCOM Display shown - Keypad and LEDs are Keypad identical on all displays. Alarm Key Up Arrow Key ? On/Off Key Help Key Left Arrow Key Enter Key Right
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Liebert iCOM Display Components and Functions Table 1 Keyboard icons and functions Icon Key Name Function On/Off Key Controls the operational state of the cooling unit. Alarm Key Silences an alarm. Help Key Accesses integrated help menus. ? ESCape Key Returns to the previous display view. ESC Enter Key Confirms all selections and selects icons or text. Increase Key Moves upward in a menu or increases the value of a selected parameter. (Up Arrow) Decrease Key Moves downward in a menu or reduces t
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Liebert iCOM Display Components and Functions Figure 3 Status menu, large display, graphical view Humidity Temperature Humidity Sensor Setpoint Setpoint System or Reading Unit # view Supply Temperature Sensor Air Temperature Reading Percent Hot Water Heating Evaporator Fan Speed Percent Electric Heating Percent Cooling Percent Dehumidifying Free-Cooling Percent Humidifying Percentage System (or Unit) On/Off Next Maintenance Date and Time Most Recent Alarms (Date, Time, Unit, Description)
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Liebert iCOM Display Components and Functions 2.1 Navigating Through the Liebert iCOM Menus Liebert iCOM shows icons and text for monitoring and controlling your Liebert cooling units or net- work of cooling units. The number of icons and amount of text shown depends on the display size. 2.1.1 Control Interface When the buttons on the Liebert iCOM control have not been pressed for a short period, the display backlight turns off. Pressing any key will turn the backlight on (wake up the screen) a
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Liebert iCOM Display Components and Functions 2.1.3 Entering a Password To change the value of a parameter in a menu, you must first enter the password for that menu. The User, Service and Advanced menus each has a unique password to prevent unauthorized changes. The User menu password is 1490; the Service menu password is 5010. NOTE Entering the Service menu password permits access to both the User and Service menus. To enter a password: 1. Navigate to the menu that contains the parameter to b
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Liebert iCOM Display Components and Functions Figure 6 Menu tree—Large display, stand-alone Unit 1 will be displayed Status Menu – System View in the top left corner of the screen. Status Menu Unit 1 View User Menu Service Menu Advanced Menu Unit 1 Unit 1 Unit 1 Password Password Password Setpoints Setpoints Factory Settings Spare Part List Unit Diary Compressor Info Event Log Standby Settings/Lead-Lag Access Passwords Graphics Maintenance/Wellness Settings View Network Diagnostics / Service M
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Liebert iCOM Display Components and Functions 2.1.4 Viewing Multiple Units with a Networked Large Display When you first wake up the control, press the Esc key to return to the System view Status menu. This view shows an average of all the units on the network and any alarms present. To view a specific unit on the network, press either the enter key or down arrow key. When you do this, you will see the word System in the top left of the screen change to a unit number. Using the left and right
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Liebert iCOM Display Components and Functions Figure 8 User menu icons User Menu password: 1490 Table 2 User menu icons Icon Name Available On Display Description °C / °F View and change temperature and humidity Setpoints Small & Large % RH setpoints SET Displays the various part numbers of the Spare Part List Large components/parts in the cooling unit EVENT Event Log Contains last 400 events Small & Large LOG Graphics Displays temperature and humidity graphs Small & Large View Network Shows
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Liebert iCOM Display Components and Functions Table 2 User menu icons (continued) Icon Name Available On Display Description 1 2 Allows setback settings for non-peak Sleep Mode Small & Large 9 3 operation 6 Contains key contact information for local Service Contact Info Small & Large service, including names and phone numbers 10
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Liebert iCOM Display Components and Functions Figure 9 Service menu icons Service Menu password: 5010 Table 3 Service menu icons Available On Icon Name Display Description °C / °F Setpoints To view and change temperature and humidity setpoints Small & large % RH SET Shows all entered program changes and maintenance Unit Diary Large performed on the unit Standby Settings/ Allows lead/lag setup when multiple units are connected Small & large Lead-Lag Allows setting maintenance interval reminder,
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Operation 3.0 OPERATION The Liebert iCOM display for your Liebert cooling unit features an easy-to-use, menu-driven liquid crystal display (LCD). All unit settings and parameters can be viewed and adjusted through three menus: User, Service and Advanced. All active alarms are displayed on the LCD and annunciated. The control is shipped from the factory with default selections for all necessary settings. Adjustments can be made if the defaults do not meet your requirements. References to menu
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Operation Autorestart When there is a loss of power to the cooling unit and power comes back, the unit will return to its pre- vious operating status—on if it was on before the power off, off if it was off. When power returns, the autorestart time—time-selectable: Single Unit Auto Restart (Service Menu, Options Setup)—controls the start of the unit. The autorestart time runs in a loop, starting the next unit each time when elapsed, starting with Unit # 1. Loss of Power Alarm A Loss of Power A
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Operation 3.1.3 General Compressor Requirements Low-Pressure Time Delay When the compressor starts, the low-pressure input is ignored for a selected period of time based on the setting of the Low Pressure Alarm Delay (Service Menu, Options Setup). This time is usually set to 3 minutes on air-cooled units, and to 0 or 1 minute on water cooled units. When this time is expired, a second timer starts to operate if the low-pressure input is active. This second timer is active during normal compre
