Emerson Liebert iCOM User manual

Liebert®iCOM®
User Manual -Intelligent Communications & Monitoring for Liebert Challenger 3000™,
Liebert Challenger ITR™ , Liebert CW™, Liebert DS™ Liebert PeX™ with Software Version PA2.01.029.03R

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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 System Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Main Unit Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Navigating Through the Liebert iCOM Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.1 Control Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.2 Accessing Submenus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.3 Entering a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3.4 Viewing Multiple Units with a Networked Large Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.0 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.1 Single Unit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.1 Unit/Fan Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.2 Back-Draft Fan Damper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1.3 General Compressor Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.4 Compressor Timing—Short-Cycle Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1.5 Compressor Sequencing on Two-Compressor Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1.6 Motorized Ball Valve in Water-Cooled Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1.7 MBV Operation After Compressor is Turned Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1.8 Service Offset—Changing System Pressure Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2 Temperature Control—Single Source Cooling (No Extra Cooling Coil) . . . . . . . . . . . . . . . . 23
3.2.1 Temperature Proportional Band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2.2 Compressor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2.3 Chilled Water Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.3 Temperature Control—Second Cooling Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.3.1 Differential Temperatures / Controls (Comparator Circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.3.2 Outdoor Air and Return Air Temperature and Humidity Sensor Connections . . . . . . . . . . . 30
3.3.3 Adjust the Restricted Airflow Switch on the Liebert Air Economizer™. . . . . . . . . . . . . . . . . 31
3.4 Liebert Air Economizer™Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.4.1 Liebert Air Economizer Operational Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.4.2 Liebert Air Economizer™System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.3 Disable the Liebert Air Economizer™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
3.4.4 Liebert Air Economizer Control Menu Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.5 Temperature Control—Reheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.5.1 Electric, Hot Gas and Hot Water Reheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.5.2 SCR Reheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.6 Humidity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.6.1 Humidification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
3.6.2 Dehumidification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.7 Control Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.7.1 Temperature and Humidity Control Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.7.2 Humidity Sensor Reading Control Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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3.8 Supply Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.8.1 Supply Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.9 Liebert Optimized Aisle Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.9.1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.9.2 Supply Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.9.3 Static Pressure Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.10 Event Types and Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3.10.1 High- and Low-Temperature and Humidity Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.10.2 User Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.10.3 Analog Inputs—Liebert CW™and Liebert DS™Air-Cooled Units . . . . . . . . . . . . . . . . . . . . . 62
3.10.4 Liebert iCOM-DO™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
3.10.5 Possible Event Notifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
3.11 Wellness—Next Maintenance Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
3.11.1 Calculating Next Maintenance and Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4.0 TEAMWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
4.1 Compatibility With Previous Liebert iCOM Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.2 Teamwork Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.2.1 Application of Teamwork Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.2.2 No Teamwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4.2.3 Teamwork Mode 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4.2.4 Teamwork Mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.2.5 Teamwork Mode 3 (Optimized Aisle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.2.6 Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
4.3 Liebert Optimized Aisle Rack Sensor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.3.1 Tools Required for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.3.2 DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4.3.3 Terminate the Final Sensor on the CANbus Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
4.3.4 Install 2T Sensors on Racks to be Monitored . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
4.3.5 Install CANbus Cable Between 2T Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
4.3.6 Replace CANbus Cable Between Liebert iCOM Display and Liebert iCOM Main Board
with Grounded CANbus Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
4.3.7 Install Grounding Ring Connector in Electrical Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
4.3.8 Software Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
4.3.9 Standby—Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
5.0 INSTALLING ALIEBERT ICOM UNIT-TO-UNIT NETWORK . . . . . . . . . . . . . . . . . . . . . . . . . . .79
5.1 Placement of Cooling Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
5.1.1 Balancing Operating and Standby Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
5.2 U2U Hardware: Cables and Network Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
5.3 Wiring for Unit-to-Unit Communications—U2U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.3.1 Wiring a Liebert iCOM U2U Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
6.0 EXTERNAL COMMUNICATION—BUILDING MANAGEMENT SYSTEMS, LIEBERT
SITESCAN®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
6.1 Terminals 77 and 78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
7.0 USER MENU PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
7.1 User-Setpoints Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

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7.2 User-Graphic Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
7.3 User-Set Alarms Menu Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
7.4 User-Sensor Data Menu Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
7.5 User-Display Setup Menu Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
7.6 User-Total Run Hours Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
7.7 User-Sleep Mode Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
7.8 User-Condenser Timer Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
8.0 SERVICE MENU PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
8.1 Service-Setpoints Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
8.2 Service-Standby Settings Menu Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
8.3 Service-Wellness Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
8.4 Service-Diagnostics Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
8.5 Service-Set Alarms Menu Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
8.6 Service-iCOM-DO Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
8.7 Service-Sensor Calibration Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
8.8 Service-Economizer Settings Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
8.9 Service-System/Network Setup Menu Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
8.10 Service-System/Network Unit-Level Setup Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . 149
8.11 Service-Options Setup Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
8.12 Service-Remote Sensors Menu Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 5 System screen with rack view of sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 6 System screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 7 Main unit screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 8 Supply/return compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 9 Menu tree—Small display, stand-alone or networked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 10 Navigation from system screen to unit screen to rack view—single unit . . . . . . . . . . . . . . . . . . . . 8
Figure 11 Navigation from system screen to unit screen to rack view—system view . . . . . . . . . . . . . . . . . . . 9
Figure 12 Entering a password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 13 Menu tree—Large display, stand-alone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 14 Menu tree—Large display, networked. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 15 User menu icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 16 Service menu icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 17 Start-stop priority switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 18 Energy efficiency— Air bypass through unit, no mechanical damper . . . . . . . . . . . . . . . . . . . . . . 19
Figure 19 Energy efficiency—No bypass air, EC fan damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 20 Temperature proportional band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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Figure 21 One single-step compressor without unloaders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 22 Two single-step compressors without unloaders or one compressor with an unloader
(two-step) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 23 Two compressors with unloaders (four-step) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 24 Digital scroll capacity modulation, 10-100% variable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 25 Single and dual digital scroll compressor activation points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 26 DIP switch locations on Liebert iCOM control board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 27 Chilled water valve control (example: cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 28 Second cooling source and two-step compressorized cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 29 Temperature and humidity sensor connections—Liebert DS and Liebert CW. . . . . . . . . . . . . . . 30
Figure 30 Supply limit thermistor wiring and restricted airflow switch location . . . . . . . . . . . . . . . . . . . . . 31
Figure 31 Operational ranges for chilled water systems and for compressor/chilled water systems . . . . . . 33
Figure 32 Air flow pattern of a Liebert Air Economizer system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 33 Liebert DS™setpoints screen, page 4 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 34 Service/Economizer, page 1 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 35 Outdoor sensor data screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 36 Damper settings and limits screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 37 Deactivation switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 38 Three-stage heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 39 Two single-step compressors with SCR reheat set to Tight mode . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 40 Two single-step compressors with SCR reheat set to Standard mode . . . . . . . . . . . . . . . . . . . . . . 43
Figure 41 Humidity proportional band. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 42 Placing temperature and temperature/humidity sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 43 Supply compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 44 Temperature/humidity/static pressure control sensors in Optimized Aisle . . . . . . . . . . . . . . . . . 53
Figure 45 Static pressure sensor Liebert iCOM installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 46 Static pressure sensor placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 47 S190 Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 48 S190 Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 49 Setpoints screen, page 9 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 50 Analog connection control board switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 51 Teamwork Mode 1 with two cooling units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 52 Teamwork Mode 3—Fixed speed vs. variable speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Figure 53 Sensor positioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Figure 54 2T rack sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 55 Setting DIP switches for 2T sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 56 DIP switches in 2T sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 57 Setting 2T Sensor DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 58 2T sensor arrangement and termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 59 Termination jumper setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 60 Connect CANbus cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Figure 61 Install grounding ring connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 62 Standby unit layout example—10 Precision Cooling units in room. . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 63 Connecting two cooling units, each with a small display, using a crossover Ethernet cable . . . . 82
Figure 64 U2U network setup diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 65 Wiring a small display for stand-alone operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Figure 66 Wiring a small display for U2U network operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Figure 67 Wiring a large display for U2U network operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Figure 68 Liebert vNSA with optional remote large display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 69 Connection to Liebert SiteLink™via 77/78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Figure 70 User menu icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

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Figure 71 Setpoints screen, page 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 72 Setpoints screen, page 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 73 Graphs, page 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 74 Graphs, page 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 75 Set alarms screen, page 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 76 Set alarms screen, page 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Figure 77 Set alarms screen, page 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Figure 78 Set alarms screen, page 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Figure 79 Sensor data screen, page 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Figure 80 Sensor data screen, page 2 (return only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Figure 81 Sensor data screen, page 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Figure 82 Sensor data screen, page 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Figure 83 Display setup screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Figure 84 Total run hours screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Figure 85 Sleep mode screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Figure 86 Condenser timer screen—page 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Figure 87 Condenser timer screen—page 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Figure 88 Service Menu Main Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Figure 89 Setpoints screen, page 1 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Figure 90 Setpoints screen, page 2 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Figure 91 Setpoints screen, page 3 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Figure 92 Setpoints screen, page 4 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Figure 93 Setpoints screen, page 5 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Figure 94 Setpoints screen, page 6 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Figure 95 Setpoints screen, page 7 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Figure 96 Setpoints screen, page 8 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Figure 97 Setpoints screen, page 9 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Figure 98 Standby settings / lead-lag screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Figure 99 Wellness—Basic settings screen, page 1 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Figure 100 Wellness—Motor settings screen, page 2 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Figure 101 Wellness—Compressor 1 settings screen, page 3 of 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Figure 102 Wellness—Compressor 2 settings screen, page 4 of 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Figure 103 Wellness—Electric heater 1 settings screen, page 5 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Figure 104 Wellness—Electric heater 2 settings screen, page 6 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Figure 105 Wellness—Electric heater 3 settings screen, page 7 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Figure 106 Wellness—Humidifier settings screen, page 8 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Figure 107 Wellness—Economizer settings screen, page 9 of 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Figure 108 Diagnostics/service mode screen, page 1 of 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Figure 109 Diagnostics/service mode screen, page 2 of 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Figure 110 Diagnostics/service mode screen, page 3 of 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Figure 111 Diagnostics/service mode screen, page 4 of 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Figure 112 Diagnostics/service mode screen, page 5 of 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Figure 113 Diagnostics/service mode screen, page 6 of 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Figure 114 Diagnostics/service mode screen, page 7 of 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Figure 115 Diagnostics/service mode screen, page 8 of 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Figure 116 Set alarms screen, page 1 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Figure 117 Set alarms screen, page 2 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Figure 118 Set alarms screen, page 3 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Figure 119 Set alarms screen, page 4 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Figure 120 Set alarms screen, page 5 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

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Figure 121 Set alarms screen, page 6 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Figure 122 Set alarms screen, page 7 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Figure 123 Set alarms screen, page 8 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Figure 124 Set alarms screen, page 9 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Figure 125 Set alarms screen, page 10 of 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Figure 126 iCOM-DO overview and override screen, page 1 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Figure 127 iCOM-DO events setup screen, page 2 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Figure 128 Liebert iCOM-DO events setup screen, page 3 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Figure 129 Sensor calibration setup screen, page 1 of 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Figure 130 Sensor calibration/setup screen, page 2 of 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Figure 131 Sensor calibration/setup screen, page 3 of 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Figure 132 Sensor calibration/setup screen, page 4 of 75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Figure 133 Sensor calibration/setup screen, page 5 of 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Figure 134 Sensor calibration/setup screen, page 6 of 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Figure 135 Sensor calibration/setup screen, page 7 of 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Figure 136 Economizer settings, page 1 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Figure 137 Economizer settings, page 2 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Figure 138 Economizer settings, page 3 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Figure 139 System/network setup screen—System, page 1 of 2 (large display only) . . . . . . . . . . . . . . . . . . 147
Figure 140 System/network setup screen—System, page 2 of 2 (large display only) . . . . . . . . . . . . . . . . . . 148
Figure 141 System/network setup screen—Unit, page 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Figure 142 System/network setup screen—Unit, page 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Figure 143 Options setup, page 1 of 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Figure 144 Options setup, page 2 of 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Figure 145 Options setup, page 3 of 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Figure 146 Options setup, page 4 of 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Figure 147 Options setup, page 5 of 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Figure 148 Options setup, page 6 of 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Figure 149 Remote sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

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TABLES
Table 1 Keyboard icons and functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 2 User menu icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 3 Service menu icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 4 Reheat configuration types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 5 Parameters for infrared humidifier control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Table 6 Dehumidification With Comp settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 7 Possible event settings—some events not available in all units . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 8 Customer inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Table 9 Number of analog inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Table 10 Analog connection control board switch position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Table 11 Alarm mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 12 Event notifications—large or small display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Table 13 DIP switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Table 14 Sample Liebert iCOM network configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Table 15 Ports available for connecting Liebert iCOMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Table 16 Liebert IntelliSlot card compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Table 17 Kit parts numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Table 18 Unit diary parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Table 19 Service contact information parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

viii

Introduction
1Liebert
®iCOM®
1.0 INTRODUCTION
The Liebert iCOM offers the highest capabilities in unit control, communication and monitoring 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 graphic display wall-mount versions of the control are available
for remote operation and monitoring of cooling units.
1.1 Features
Large and Small Displays
The Liebert iCOM is available with either a large or small liquid crystal display.
•TheLiebert iCOM with small display has a 128 x 64 dot matrix screen that simultaneously
shows two menu icons, along with descriptive text. This display is capable of controlling only the
unit it is directly connected to.
•TheLiebert iCOM with large display has a 320 x 240 dot matrix screen that shows up to 16
menu icons at a time, as well as descriptive text. This display can be used to control a single
cooling unit or any cooling unit on a network, regardless of how it is connected—either integrated
into a cooling unit or simply connected to the network and mounted remotely.
Liebert iCOM’s menu-driven display is used for all programming functions on each connected cooling
unit. The Status menu shows the status of the conditioned space, such as room temperature and
humidity, temperature and humidity setpoints, alarm status and settings, event histories and the
current time.
Figure 1 Liebert iCOM components
Wall Mount Large Display
Direct Panel Mount
Small Display and Bezel
Direct Panel Mount Large Display and Bezel
Liebert iCOM Input/Output Board

Liebert iCOM Display Components and Functions
Liebert®iCOM®2
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
NOTICE
Risk of inadvertent system shutdown. Can cause loss of cooling and equipment damage.
Pressing the On/Off key on a Liebert iCOM large display while the system screen is shown
permits shutting down all units on the network.
Large Liebert iCOM displays can view and control other units on the network when they are
in the same group. When turning a unit Off or On with the large display, make sure that the
unit to be shut down or started up is shown on the screen. If the system screen is shown and
the On/Off key is pressed, the Liebert iCOM shows a notification that pressing the On/Off key
again will turn off all units on the network.
NOTE
The Help key may be pressed at any time for a brief explanation of what is being viewed.
ESC
?
Liquid Crystal Display
Keypad
Large Liebert iCOM Display
shown - Keypad and LEDs are
identical on all displays.
LED Status Indicators
(top LED is red or
flashing red; bottom
LED is green or amber)
ESC
?
On/Off Key
Escape Key Down Arrow Key
Up Arrow Key
Left Arrow Key Right Arrow KeyEnter Key
Alarm Key
Help Key

Liebert iCOM Display Components and Functions
3Liebert
®iCOM®
Table 1 Keyboard icons and functions
Icon Key Name Function
On/Off Key Begins Shutdown or Startup.
Alarm Key Silences/Resets an alarm.
Help Key Accesses integrated help menus.
ESCape Key Returns to the previous display view.
Enter Key Confirms all selections and selects icons or text.
Increase Key
(Up Arrow) Moves upward in a menu or increases the value of a selected parameter.
Decrease Key
(Down Arrow) Moves downward in a menu or reduces the value of a selected parameter.
Left and Right
Arrow Keys Navigates through text and sections of the display.
Upper LED
Blinking Red—Active, unacknowledged alarm exists
Solid Red—Active, acknowledged alarm exists
Lower LED
Amber—Power is available to the unit, unit is NOT operating
Green—Power is available to the unit, unit is operating
Lower LED Green and Amber LEDs will flash alternately when the unit is in Standby
?
ESC

Liebert iCOM Display Components and Functions
Liebert®iCOM®4
Figure 3 Status menu, large display, graphical view
Figure 4 Liebert iCOM default screen symbols
2.1 System Screen
The System Screen with Rack View of Sensors will display the average, maximum and minimum of
all connected sensors for the supply, return and remote sensors.
This system screen displays the temperature environment by displaying the sensor readings from all
units connected in the network.
Evaporator
Fan Speed
Return Air
Temperature
Setpoint
Return Air
Humidity
Setpoint Return Air
Humidity
Supply Air
Temperature
(optional)
Percent Hot Water
Heating
Most Recent Log
Events (Date,
Time, Unit,
Description)
System or
Unit # view
Percent Cooling
Free-Cooling
Percentage
Date and Time
Return Air
Temperature
Percent Humidifying
Percent Electric
Heating
Percent Dehumdifying
Next Maintenance
System (or Unit)
On/Off
fan cooling maintenance
hot water electric heat dehumidification humidification
freecooling

Liebert iCOM Display Components and Functions
5Liebert
®iCOM®
Figure 5 System screen with rack view of sensors
System Screen will indicate if Teamwork is turned On and which teamwork mode is currently set
within the control.
This system screen displays the unit operation by displaying the average of all active components
from each unit within the system.
Figure 6 System screen

Liebert iCOM Display Components and Functions
Liebert®iCOM®6
2.2 Main Unit Screen
The temperatures shown at the top of the main unit screen are determined by the configuration of the
Liebert iCOM. The values are based on which sensors are used for controlling airflow, cooling
capacity and humidification.
The data at the upper left of the screen can be either average or maximum rack temperature,
depending on the selection in the Remote Sensors Mode. The data at the upper middle of the screen
can be either dew point or relative humidity, depending on humidity control type.
Each unit can display individual remote rack sensors. The reading will be either an average or
maximum reading between the two sensors connected at each 2T sensor module.
The bar graph’s upper limit is set at 77°F (25.0°C)The lower limit is set at 68°F (20.0°C), the rack
inlet temperature range recommended by ASHRAE. When a rack temperature is at or above the
upper limit, the bar graph will be all black. When a rack temperature is at or below the lower limit,
the bar graph will be all white.
Figure 7 Main unit screen
Can be either
average
temperature
or maximum
temperature
Can be either dewpoint
or relative humidity
Arrow will be
shown when
compensation is
invoked

Liebert iCOM Display Components and Functions
7Liebert
®iCOM®
Figure 8 Supply/return compensation
2.3 Navigating Through the Liebert iCOM Menus
Liebert iCOM shows icons and text for monitoring and controlling your Liebert cooling units or
network of cooling units. The number of icons and amount of text shown depends on the display size.
2.3.1 Control Interface
When the buttons on the Liebert iCOM 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) and display the Status
menu of the last cooling unit viewed. The Status menu will show the cooling unit’s operational
mode(s), return air temperature and humidity readings, temperature and humidity setpoints and any
active alarm conditions.
If the cooling unit has a large display and is not on a network, or if the unit has a small display,
whether it is networked or stand-alone, the Status menu will display only that cooling unit’s
information. Any large display that is connected to a network can be used to view any cooling unit on
the network or show an average view of the entire system of cooling units.
The Liebert iCOM has three main menus; User, Service and Advanced.
The User menu contains the most frequently used features, settings and status information. The
Service menu contains settings and features used to set up unit communications and for unit
maintenance. The Advanced menu contains settings used to set up the unit at the factory.
NOTE
Menu settings may be viewed without a password, but changing settings requires a password.
The password for the User menu is 1490. The password for Service menu is 5010. For details
on entering a password, see Entering a Password on page 10
76 78
74
7372
100%
Compensation
50%
Compensation
Blower at 100%
of Capacity
Blower Proportional Band
Fan Speed Proportional
Band 8°F (4°C)
Supply Temperature Setpoint
will be decreased by the Supply
Compensation band when the
fan speed proportional band
has doubled
After the blower reaches 100
percent and the temperature
continues to increase, the
supply temperature setpoint will
be decreased proportionally
Supply
Compensation
Band 8°F (4°C)

Liebert iCOM Display Components and Functions
Liebert®iCOM®8
2.3.2 Accessing Submenus
While the display is at unit status screen, press either the Enter or down arrow key to display the
User menu. To access the Service menu, press the right arrow key. Pressing the right arrow key again
will display the Advanced menu. For navigating to the sub-menus from each main menu, press Enter
key and then the appropriate arrow key. Pressing the Enter key again to access the menu items.
Figure 9 Menu tree—Small display, stand-alone or networked
Figure 10 Navigation from system screen to unit screen to rack view—single unit
Status Menu
Unit 1 View
User Menu
Password
Setpoints
Event Log
Graphics
Set Alarms
Sensor Data
Active Alarms
Display Setup
Total Run Hours
Sleep Mode
Service Info
Condenser Timer
Service Menu
Unit 1
Password
Setpoints
Unit Diary
Standby Settings/Lead-Lag
Maintenance/Wellness Settings
Diagnostics / Service Mode
Set Alarms
iCOM-DO
Sensor Calibration/Setup
Economizer
System/Network Setup
Options Setup
Service Contact Info
Remote Sensors
Advanced Menu
Password
Factory Settings
Expert Settings
Compressor Info
MBV Settings
Change Passwords
Runtime Monitoring
Control Override
Global Condenser
Condenser Control

Liebert iCOM Display Components and Functions
9Liebert
®iCOM®
Figure 11 Navigation from system screen to unit screen to rack view—system view
Accessing Submenus on Small Displays
For navigating to submenus while at the main menu (User, Service or Advanced), use the up and
down arrow keys to scroll through the icons page-by-page. To scroll through the icons one-by-one,
press the enter key and then use the up and down arrow keys. With the desired icon highlighted,
press the enter key to enter that submenu. Once in a Submenu, a list of menu items, each with its
associated parameter, is displayed.
Press the Enter key and use the up and down arrow keys to navigate through the parameters one-by-
one. Pressing the Esc key will go back a level. Figure 9 shows the Liebert iCOM menus for a small
display.
Display Filtering
Display filtering permits displaying only a single unit in the network on the large display. This allows
each cooling unit to have a large display that acts as a local display Filtering can be enabled in the
User/Display menu.
Accessing Submenus on Large Displays
Press the enter key from the main Liebert iCOM display to access the User, Service and Advanced
menus. Then use the left / right arrows to move among the User, Service and Advanced menus. Press
the enter key to highlight the first icon. Use the arrow keys to navigate through the icons. With the
desired icon highlighted, press the enter key to enter that submenu. Once in a Submenu, a list of
parameters will be displayed.
The up and down arrow keys may be used to scroll through the parameters page-by-page if the
submenu has multiple pages. To scroll item-by-item, press the Enter key and then use the up and
down arrow keys. Using the right or left arrow keys on large displays attached to a network will
change the unit being viewed. Pressing the Esc key will go back a level. Figures 13 and 14 show the
Liebert iCOM menus for a stand-alone large display and for a networked large display, respectively.
NOTE
Settings are readable without a password, but changing settings requires a password.

Liebert iCOM Display Components and Functions
Liebert®iCOM®10
2.3.3 Entering a Password
The password must be entered before any value of the menu item parameter can be changed. There
are three levels of password for preventing unauthorized changes.
1. User menu password allows the operator the ability to change the parameters in the User menu.
The User menu password is 1490.
2. Service menu password enables the operator to changes parameters in both Service and User.
The Service menu password is 5010.
3. Advanced menu password allows the changes to be made in all parameters.
To enter a password:
1. Navigate to the menu that contains the parameter to be changed.
2. Select Password in the submenu by pressing the Enter key.
3. Press the Enter key to move your cursor to the right side of the screen to select the question
marks.
4. Use the arrow keys to enter the numeral for the password’s first digit (the up arrow key moves
from 1 to the next digit).
5. Use the right arrow key to move to the next question mark and repeat Step 4 to enter all digits in
the password.
6. After entering the password, press enter.
If the password is correct, the Actual Level shown to the right of Password will change
from 0 to 1 or 2. The menu will remain locked if the password was incorrect.
Figure 12 Entering a password
NOTE
Entering the Service menu password permits access to both the User and Service menus.
NOTE
Returning to the Status menu will require re-entering a password to make changes.