Emerson Liebert ICOM-DO User Manual Page 115
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Service Menu Parameters
107 Liebert
®
iCOM
®
for Liebert DSE
™
compressors can only be set to Return or Remote control type l. This parameter can only be changed
in the service menu. The range is Supply, Return or Remote Sensor. The default setting is Return.
S103 Temperature Setpoint Act/Set—Selects a return temperature that the cooling unit will
maintain by applying cooling and or reheats. This is adjustable from 41-104°F (5-40°C). The default is
73°F (22.7°C).
There are two values in this field. The Temp Set value is the temperature that has been set by the
user to control the temp. The Temp Act value is a read only value that indicates if another routine,
like supply compensation has internally modified the Temp controlling value. If compensation has not
been activated, then the ACT and SET will always match. This parameter is adjustable from
41-104°F (5-40°C). The default set value for Supply is 64°F. The default set value for Return and
Remote is 73°F.
S104 Temperature Control Type—Sets the type of control to be followed Proportional, PI or
Intelligent.
S106 Temperature Proportional /Integral—Adjusts the activation points of compressors or rate
of change based on the actual sensor values deviation from setpoint. The smaller this number the
faster the compressors and valve(s) will increase capacity. Too small of a number may cause the unit
to short cycle the compressors or excessively reposition the valve.
S107 Temperature Integration Time—Adjusts the capacity of the unit based on time away from
setpoint so that accurate temperature control can be maintained. The proportional and integral work
together to maintain setpoint. Large P-Band with Small I-Time is typical when controlling to supply
air.
S108 AutoSet Enable—Sets the temperature and humidity proportional bands automatically based
on the type of unit when this parameter is set to “YES” and if teamwork modes are selected. To
change the proportional bands, this parameter must be set to “NO”. If supply or remote sensors are
used, then this value is always set to “No.”
S109 Temperature Deadband—Avoids overshooting of the setpoint and cycling between the
reheats and cooling. The value entered in this field will be split in half by the temperature setpoint.
Example: If the temperature setpoint is 70°F (21.1°C) and a 4°F (2.2°C) deadband is set, then no
cooling will be activated until 72°F (22.2°C) and no heating will be activated until 68°F (20°C) is
reached.
S110 Supply Limit Enabled/Setpoint—Chilled water units may be set up with the supply air
sensor to maintain a minimum air temperature under a raised floor to help prevent condensation. In
order to avoid supply temperatures that are too low, the Supply Limit can influence the opening of
three-point or analog actuators or the output of analog valves. The control compares the deviation
from the return air setpoint and the supply limit setpoint, and calculates the output to the actuator
from the smaller deviation.
S111 Heater Deadband—Changes the amount of deviation below the temperature setpoint that the
heaters will cycle On and Off on Liebert HPM
™
units. This value is added to the heating side of the
normal temperature deadband.
- for Liebert DSE 1
- 2
- TABLE OF CONTENTS 3
- 1.0 INTRODUCTION 9
- 2.1.1 System Screen 12
- 5Liebert 13
- Unit Screen 14
- EconoPhase circuit 16
- 2.2.1 Control Interface 17
- 2.2.2 Accessing Submenus 17
- Display Filtering 18
- Liebert iCOM Display Readout 18
- Accessing Submenus 19
- 2.2.3 Entering a Password 20
- Table 3 User menu icons 23
- Table 4 Service menu icons 25
- 3.0 OPERATION 27
- Autorestart 28
- Loss of Power Alarm 28
- Minimum Fan Speed 30
- 3.1.2 Back-Draft Fan Damper 30
- Low-Pressure Time Delay 31
- Advanced DX Freeze Protection 31
- Pump Down Operation 31
- High Pressure Alarm 32
- Operation 33
- 25 Liebert 33
- 3.2 Temperature Control 34
- . If the proportional 35
- 3.2.1 Setting Up PI Control 36
- Temperature Deadband 36
- 3.2.2 Compressor Control 36
- 29 Liebert 37
- System 1 System 2 38
- 3.3.3 Tandem Operation 39
- Additional Reheat Rules 40
- 3.5 Humidity Control 41
- 3.5.1 Humidity Control Types 42
- 3.5.2 Humidification 43
- Infrared Humidifier 43
- 3.5.3 Dehumidification 44
- Dehumidification Low Limit 45
- 39 Liebert 47
- Dehumidification Operation 48
- 41 Liebert 49
- 43 Liebert 51
- Temperature Compensation 52
- Setpoint Manipulated Variable 56
- Controlled Variable 56
- and Liebert 57
- 3.8.1 CANbus Failure 58
- EEV Battery Backup 59
- 3.8.4 Liebert MC 59
- Low Noise / Fan Reversal 60
- 3.8.6 Liebert EconoPhase 61
- 57 Liebert 65
- Event Description 68
- 3.9.2 User Inputs 70
- Table 16 Customer inputs 71
- 3.9.3 Analog Inputs 72
- 3.9.4 Liebert iCOM-DO 73
- Table 20 Event notifications 74
- Calculating Unit Wellness 76
- 69 Liebert 77
- 4.0 TEAMWORK 78
- 4.2.2 No Teamwork 79
- 4.2.3 Teamwork Mode 2 79
- Fixed Speed 80
- Variable Speed 80
- Teamwork 81
- 73 Liebert 81
- Figure 49 Remote sensors 82
- Figure 50 Sensor positioning 82
- 4.2.5 Hardware Setup 83
- 4.3.2 DIP Switch Settings 84
- Unterminated 86
- Terminated 86
- Grounded CANbus Cable 87
- 4.3.7 Software Setup 89
- 4.3.8 Standby—Rotation 90
- Standby and Cascade 90
- Liebert iCOM 95
- I/O Board 95
- Optional Large 95
- Graphics Display 95
- (Rear View) 95
- Liebert vNSA 96
- SITESCAN 97
- 7.0 USER MENU PARAMETERS 98
- 91 Liebert 99
- User Menu Parameters 100
- 7.2 User-Graphic Menu Screens 101
- Event Log 102
- View Network 102
- 95 Liebert 103
- 97 Liebert 105
- 99 Liebert 107
- Active Alarms 108
- 101 Liebert 109
- 103 Liebert 111
- 105 Liebert 113
- 8.0 SERVICE MENU PARAMETERS 114
- Service Menu Parameters 115
- 107 Liebert 115
- 109 Liebert 117
- 111 Liebert 119
- 113 Liebert 121
- 115 Liebert 123
- 117 Liebert 125
- 119 Liebert 127
- 121 Liebert 129
- 123 Liebert 131
- 127 Liebert 135
- 129 Liebert 137
- 131 Liebert 139
- 133 Liebert 141
- Set Alarm Screens, Pages 4-12 142
- 135 Liebert 143
- 137 Liebert 145
- 139 Liebert 147
- 143 Liebert 151
- 145 Liebert 153
- 147 Liebert 155
- 149 Liebert 157
- 151 Liebert 159
- 153 Liebert 161
- 155 Liebert 163
- 161 Liebert 169
- Technical Support / Service 172
- Locations 172
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