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Service Menu Parameters
131 Liebert
®
iCOM
®
S175 Display Off and BDR—When the back draft damper is enabled, different modes can activate
this feature. Remote Off, Display Off, BMS Off and Local Off can all be set to activate the back draft
damper operation. This is done pressing the I/O key at the unit to put the unit in a display Off
condition.
S176 BMS Off and BDR—When the back draft damper is enabled, different modes can activate this
feature. Remote Off, Display Off, BMS Off and Local Off can all be set to activate the back draft
damper operation. This is done by sending a remote Off signal from the BMS to the unit to be
remotely Off.
S177 LOC Off and BDR—When the back-draft damper is enabled, different modes can activate this
feature. Remote Off, Display Off, BMS Off and Local Off can all be set to activate the back draft
damper operation. This is done by sending a local Off signal from the unit by pressing I/O key.
Figure 113 Setpoints screen, page 8 of 10
S179 SCR Control Type—Sets the control type for the SCR reheats. If set to “Standard,” then the
reheats will modulate when the temperature is below setpoint based on the control settings. If this
parameter is set to “Tight” control, then one compressor will be locked on and the reheats will
modulate to offset the cooling capacity. To prevent component fighting, Tight control cannot be used
with modulated components such as chilled water valves and digital scroll compressors.
S180 Start 1st Compressor At—Sets the activation point of the compressor. This parameter can be
used when set to “Tight” control.
S181 Stop 1st Compressor At—Sets the deactivation point of the compressor. This parameter can
be used when set to “Tight” control.
S182 1st Compressor Stop Delay—Sets the delay when the stop compressor setpoint for the first
compressor is met.
S183 Start 2nd Compressor At—Sets the activation point of the second compressor. This
parameter can be used when set to “Tight” control.
S184 Stop 2nd Compressor At—Sets the deactivation point of the second compressor. This
parameter can be used when set to “Tight” control.
S185 2nd Compressor Stop Delay—Sets the delay when the stop compressor setpoint for the
second compressor is met.
S186 Cycle Time—Set at the factory and should be changed only by an authorized Emerson
representative.
S187 SCR Factor—Set at the factory and should be changed only by an authorized Emerson
representative.
S188 Actual SCR Request—Displays the actual SCR reheat being requested.
- 2
- TABLE OF CONTENTS 3
- 1.0 INTRODUCTION 11
- 2.2 System Screen 16
- USER MENUS 20
- 2.5 Display Setup 22
- Figure 16 User menu icons 24
- Table 2 User menu icons 24
- Figure 17 Service menu icons 26
- Table 3 Service menu icons 26
- 3.0 OPERATION 28
- Autorestart 29
- Loss of Power Alarm 29
- Minimum Fan Speed 31
- Operation 32
- 3.1.4 Power Monitoring 33
- Low-Pressure Time Delay 33
- Advanced DX Freeze Protection 33
- Pump Down 34
- High-Pressure Alarm 34
- 25 Liebert 35
- Settings 37
- 3.3 Temperature Control 39
- 3.3.1 Setting Up PI Control 41
- 3.3.2 Compressor Control 42
- Compressor Proportional Bands 42
- 3.4 Liebert Fluid Economizer 45
- Cooling—Free-Cooling 47
- Dual-Cooling Source 48
- 3.4.2 Liebert Air Economizer 48
- DETAIL CDETAIL B 49
- DETAIL D 49
- FRONT VIEW 49
- Both possible low-voltage 50
- Determine which applies 50
- 3.5 Liebert Air Economizer 51
- Operation 51
- System Overview 52
- 3.5.1 Liebert Air Economizer 52
- (Not by 53
- Emerson) 53
- Not in Operation 54
- Startup Configurations 54
- 45 Liebert 55
- 47 Liebert 57
- 3.6.2 SCR Reheat 60
- Tight Mode 60
- 3.7 Humidity Control 61
- 53 Liebert 63
- 3.7.1 Humidification 64
- Infrared Humidifier 64
- 3.7.2 Dehumidification 64
- Dehumidification Low Limit 65
- 57 Liebert 67
- 3.8 Supply Control 68
- 59 Liebert 69
- 3.9.1 Operation 70
- Temperature Compensation 70
- Racks with Equipment 75
- Figure 60 S190 Limit 77
- Figure 61 S190 Control 77
- 3.10.2 User Inputs 81
- 3.10.3 Analog Inputs 82
- 3.10.4 Liebert iCOM-DO 83
- Calculating Unit Wellness 85
- 4.0 TEAMWORK 87
- 4.2.2 No Teamwork 88
- 4.2.3 Teamwork Mode 1 88
- 4.2.4 Teamwork Mode 2 89
- Fixed Speed 90
- Variable Speed 90
- Teamwork 91
- 81 Liebert 91
- Figure 66 Remote sensors 92
- Figure 67 Sensor positioning 92
- 4.2.6 Hardware Setup 93
- 4.3.2 DIP Switch Settings 94
- Unterminated 96
- Terminated 96
- 87 Liebert 97
- 4.3.7 Software Setup 99
- 4.3.8 Standby—Rotation 99
- Standby and Cascade 100
- 91 Liebert 101
- Small Displays 103
- Small Graphics Display 105
- Liebert iCOM 106
- I/O Board 106
- Optional Large 107
- Graphics Display 107
- (Rear View) 107
- Liebert vNSA 108
- SITESCAN 109
- 6.2 Monitoring Points 110
- 7.0 USER MENU PARAMETERS 111
- User Menu Parameters 112
- 103 Liebert 113
- 7.2 User-Graphic Menu Screens 114
- Event Log 115
- View Network 115
- 107 Liebert 117
- 109 Liebert 119
- 111 Liebert 121
- 113 Liebert 123
- Active Alarms 124
- 115 Liebert 125
- 117 Liebert 127
- 119 Liebert 129
- 8.0 SERVICE MENU PARAMETERS 131
- Service Menu Parameters 132
- 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 4-11 160
- 151 Liebert 161
- 153 Liebert 163
- 155 Liebert 165
- 157 Liebert 167
- Freecool Sensor 168
- 159 Liebert 169
- 161 Liebert 171
- 163 Liebert 173
- 165 Liebert 175
- 167 Liebert 177
- 169 Liebert 179
- 171 Liebert 181
- 173 Liebert 183
- 175 Liebert 185
- 181 Liebert 191
- (read only) 193
- Technical Support / Service 196
- Locations 196
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