Emerson Liebert iCOM User Manual Page 140
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- Table of contents
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Service Menu Parameters
Liebert
®
iCOM
®
130
Figure 110 Setpoints screen, page 7 of 9
S168 Fan Back Draft Control—Enables or disables the Back Draft fan control. This feature allows
EC Fans (only) to operate at very low speeds to prevent airflow from cycling through the unit due to a
higher under-floor static pressure than the above floor static pressure. VFD’s cannot be used with this
feature due to motor and or bearing degradation that may occur at the low fan speeds required to
support this feature.
S169 VSD Setpoint BACK DRAFT—The variable speed device setpoint is set as a voltage
reference. The lower the voltage, the slower the fans will spin. This parameter is set based on the
application. Higher under-floor static pressure may require a higher setting to prevent air flow
through the unit.
S171 Not Selectable Zone 1—The not selectable zone 1 and 2 are zones that the EC fans cannot
operate within due to vibration harmonics that the fans may introduce to the unit. These parameters
will be set from the factory based on model type and should not need adjusted in the field.
S172 Not Selectable Zone 2—The not selectable zone 1 and 2 are zones that the EC fans cannot
operate within due to vibration harmonics that the fans may apply to the units frame. These
parameters will be set from the factory based on model type and should not need adjusted in the field.
S173 Stop BDR when System is Off—The above is true when S173 Stop BDR when System is
Off is set to “Yes.” If S173 is set to ‘No’ the BDR mode will not be interrupted, unless BDR is disabled
or the unit is restarted.
S174 Remote Off and BDR (Liebert HPM
™
only)—Active when terminals factory supplied RSD 37
+ 38 are open. SFA fan wiring required for operation. Do not use this feature when the doing an fire
system with the RSD. Contact Liebert Services for assistance.
!
WARNING
Risk of electrical shock. Can cause injury and death.
Never use any of these functions—Remote Off, Display Off, BMS Off, LOC Off—in place of
lockout/tagout procedures.
Some internal components of Liebert cooling units require and receive power even during the
Unit Off mode of the Liebert iCOM.
The factory-supplied optional disconnect switch is inside the Liebert cooling unit. The line
side of this switch contains live high voltage.
The only way to ensure that there is NO voltage inside the unit is to install and open a remote
disconnect switch. Refer to the unit electrical schematic.
Follow all local codes.
- 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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