Emerson Liebert iCOM User Manual Page 104
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Installing a Liebert iCOM Unit-to-Unit Network
Liebert
®
iCOM
®
94
5.3.1 Wiring a Liebert iCOM U2U Network
Small Displays
Two cooling units, each with a small display: To network two cooling units, each with a small
display, connect a crossover CAT5 cable between the P64 connectors on each cooling unit’s Liebert
iCOM input/output board. A network switch is not needed (see Figure 78).
Figure 78 Connecting two cooling units, each with a small display, using a crossover Ethernet cable
Three or more units with small displays: To network three or more cooling units, each equipped
with a small display. Figure 81 shows that one plug of the CAT5 cable is connected to P64A
connector and the other to the network switch. The P64A, which is connected to port P64 on the
control board, is located near it on each cooling unit’s Liebert iCOM input/output board to a common
network switch. The P64A connector is a crossover coupler that on DS, CW and Challenger units.
Large Displays
A network switch is required to enable Ethernet communication on one or more cooling units with
large displays. Each cooling unit with a large display requires two straight-through Ethernet cables
from a network switch. One cable connects to port P64 on the Liebert iCOM input/output board and
the other straight-through cable connects to the female-female coupler, if the female-to-female
coupler is provided with the unit. Connect the red crossover cable, which is provided with the cooling
unit, between the coupler and the P64 port on the back of the large display (see Figure 82). If the
female-to-female coupler is not provided, connect the straight-through cable to Port P64 on the large
display.
NOTE
If P64A is not available on a unit, connect directly to the Liebert iCOM board on P64.
NOTE
A female-to-female coupler is factory-supplied on some cooling units equipped with a large
display.
- 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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