Emerson Liebert iCOM User Manual Page 26
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Operation
Liebert
®
iCOM
®
16
3.0 OPERATION
The Liebert iCOM display provides viewing, trending and configuration capability for Liebert cooling
units. 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 items in this manual are followed by the main menu and the submenu where they
can be found.
For example:
• Temperature Setpoint (User Menu, Setpoints) - The Temperature Setpoint parameter is
located in the User menu under the Setpoints submenu.
• High Return Humidity (Service Menu, Set Alarms) - The High Return Humidity alarm is
located in the Service menu under the Set Alarms submenu.
3.1 Single Unit Functions
3.1.1 Unit/Fan Control
Start - Stop
The fan output is first activated when the unit is switched On. The unit can be switched On and Off
from two inputs:
• ALARM OFF—The unit has an alarm that has forced the unit to turn Off.
• MANUAL—Unit is being controlled by a service technician using the Service Diagnostics Manual
Mode.
• LOCAL OFF—When a unit is turned Off from the Unit Status Screen or small display,
LOCAL OFF is shown for unit status.
• DISPLAY OFF—When a unit is turned Off from the System Screen of a large display, Display
OFF is shown for unit status.
• ALARM STANDBY—The unit has been rotated into standby because an active alarm on the unit
is present.
• STANDBY—The unit is in standby based on the Lead / Lag settings in the Service Menu.
• TIMER OFF—The unit has been set to Sleep and is waiting for the next start interval. See
User / Sleep Mode Menu.
• UNIT ON—The unit is operating normally without alarm or warning.
• WARNING ON—The unit has an active warning but is still operating. See User / Active alarms
for details.
• ALARM ON—The unit has an active alarm but is still operating. See User / Active alarms for
details.
• TIMER—The unit is configured on a timer to only operate at certain times. See User / Sleep Mode
Menu.
• REMOTE OFF—Remote shutdown terminals will turn Off the connected unit and the front
display shows REMOTE OFF as the status. This command can also be invoked from a BMS.
• MONITORNG OFF—In this case, an override to the monitoring is possible: Pressing the On-Off
button of the display will change the state to Unit Off; pressing again may start the unit in Unit
On. If the unit does not turn On, check the remote monitoring device or call 800-543-2778 for
assistance.
• BACK-DRAFT—The unit is in a non-operational mode, but is operating the EC fan as a
back-draft damper.
Pressing the On/Off key on a small display will affect only the cooling unit it is mounted on,
regardless of whether the cooling unit is a stand-alone unit or part of a network. The small Liebert
iCOM display does not have access to the Unit-to-Unit network.
NOTE
Pressing the On/Off key on a large display of a stand-alone cooling unit will control
only that unit.
- 2
- TABLE OF CONTENTS 3
- 1.0 INTRODUCTION 11
- 2.1 System Screen 14
- 5Liebert 15
- 2.2 Main Unit Screen 16
- 2.3.2 Accessing Submenus 17
- Display Filtering 19
- 2.3.3 Entering a Password 20
- Figure 14 User menu icons 23
- Table 2 User menu icons 23
- Figure 15 Service menu icons 24
- Table 3 Service menu icons 24
- 3.0 OPERATION 26
- Autorestart 27
- Loss of Power Alarm 27
- Minimum Fan Speed 29
- Operation 30
- Low-Pressure Time Delay 31
- Advanced DX Freeze Protection 31
- Pump Down 32
- High Pressure Alarm 32
- 23 Liebert 33
- Settings 34
- 25 Liebert 35
- 3.2.2 Compressor Control 36
- Compressor Proportional Bands 36
- 27 Liebert 37
- 3.2.3 Chilled Water Control 38
- 29 Liebert 39
- 31 Liebert 41
- Cooling—Free-Cooling 42
- Dual-Cooling Source 42
- DETAIL CDETAIL B 43
- DETAIL D 43
- FRONT VIEW 43
- DETAIL E 44
- 35 Liebert 45
- 3.4 Liebert Air Economizer 46
- Operation 46
- 37 Liebert 47
- 3.4.2 Liebert Air Economizer 48
- System Overview 48
- (Not by 49
- Emerson) 49
- Out of Service 50
- 41 Liebert 51
- 43 Liebert 53
- 3.5.2 SCR Reheat 57
- Tight Mode 57
- 3.6.1 Humidification 59
- Infrared Humidifier 59
- 3.6.2 Dehumidification 60
- Dehumidification Low Limit 60
- . If the proportional 63
- Setting Up PI control 64
- 3.8 Supply Control 66
- 3.9.1 Operation 67
- Temperature Compensation 68
- Racks with Equipment 73
- Figure 59 S190 Limit 75
- Figure 60 S190 Control 75
- 67 Liebert 77
- 3.10.2 User Inputs 80
- and Liebert DS 81
- Air-Cooled Units 81
- 3.10.4 Liebert iCOM-DO 82
- Calculating Unit Wellness 84
- 75 Liebert 85
- 4.0 TEAMWORK 86
- 4.2.2 No Teamwork 87
- 4.2.3 Teamwork Mode 1 87
- 4.2.4 Teamwork Mode 2 88
- Fixed Speed 89
- Variable Speed 89
- Teamwork 90
- 4.2.6 Hardware Setup 91
- 4.3.2 DIP Switch Settings 92
- Unterminated 94
- Terminated 94
- 85 Liebert 95
- Grounded CANbus Cable 97
- 4.3.8 Software Setup 99
- 4.3.9 Standby—Rotation 99
- Standby and Cascade 100
- 91 Liebert 101
- Small Displays 104
- Large Displays 104
- 95 Liebert 105
- Small Graphics Display 106
- Liebert iCOM 107
- I/O Board 107
- Graphics Display 108
- (Rear View) 108
- Optional Large 108
- SITESCAN 110
- 6.1 Terminals 77 and 78 111
- via 77/78 112
- 7.0 USER MENU PARAMETERS 113
- User Menu Parameters 114
- 105 Liebert 115
- 7.2 User-Graphic Menu Screens 116
- Event Log 117
- View Network 117
- 109 Liebert 119
- 111 Liebert 121
- 113 Liebert 123
- Active Alarms 125
- 117 Liebert 127
- 119 Liebert 129
- 121 Liebert 131
- 8.0 SERVICE MENU PARAMETERS 132
- Service Menu Parameters 133
- 123 Liebert 133
- 125 Liebert 135
- 127 Liebert 137
- 129 Liebert 139
- 131 Liebert 141
- 133 Liebert 143
- 135 Liebert 145
- 137 Liebert 147
- 139 Liebert 149
- 141 Liebert 151
- 143 Liebert 153
- 145 Liebert 155
- 147 Liebert 157
- 149 Liebert 159
- Set Alarm Screens, Pages 4-10 160
- 151 Liebert 161
- 153 Liebert 163
- 155 Liebert 165
- 157 Liebert 167
- 159 Liebert 169
- 161 Liebert 171
- 163 Liebert 173
- 165 Liebert 175
- 167 Liebert 177
- 169 Liebert 179
- 171 Liebert 181
- 9.0 MONITORING POINTS 187
- Example of points generated 188
- Monitoring Points 189
- 179 Liebert 189
- Technical Support / Service 192
- Locations 192
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