Emerson Liebert ICOM-DO User Manual Page 77
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- Table of contents
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Operation
69 Liebert
®
iCOM
®
for Liebert DSE
™
Liebert iCOM displays a graphic for needed maintenance. It begins with the standard maintenance
interval—12 months, six months or three months—and adjusts that based on its calculation of
components’ wellness.
To calculate wellness, Liebert iCOM keeps a running total of component working hours and the
number of times it has been started. Liebert iCOM relates that data to the optimum/maximum starts
per hour. Accordingly, Liebert iCOM will increase or decrease the time before the next service call.
The more frequently a component starts, the sooner it is likely to need maintenance. If, for example, a
unit’s fan runs continuously, but it’s compressor starts and stops often, Liebert iCOM records that
and calls for maintenance based on the compressor’s wellness factor.
Alarms and warnings, such as clogged filters or high or low pressure, reduce the time till the next
maintenance to zero. If the alarm is cleared and reset, Liebert iCOM recalculates wellness. It begins
with the pre-alarm maintenance time and factors in the alarm.
Parameters for Next Maintenance Calculation
General Maintenance Settings
• Maintenance Frequency—can be set as one to 12 months or to zero, which disables
maintenance calculation
• Max. Bonus—increases the time to next maintenance with the set value, if all components run
optimally (number of starts, average running time)
• Max. Penalty value—decreases the time to next maintenance with the set value, if some
components run in non-optimum way (number of starts, average running time)
• Last Maintenance—date can be set from service-engineer; informational
• Service-Engineer—name of the service engineer; editable
• Reset—puts all counters of all components, such as (motor, compressors, heaters and humidifier),
at zero and starts a new maintenance calculation (reset to be done after maintenance)
Fans / Heaters / Humidifier Settings and Diagnostics
• Number of starts and Working hours are counted separately since the last maintenance. Total
working hours can be read in the standard working hours window (customer window).
• Average Working Hours is the calculation, resulting from starts and working hours.
• Starts per Day Optimum is the number of starts considered as optimum.
• Starts per Day Worst is the number of starts considered as hunting (worst case).
• Number of Alarms counts the alarms, happened between two service intervals.
• Actual Bonus is calculated from number of starts and average working time. Can be positive
(bonus) or negative (penalty). This value influences the time remaining to the next maintenance.
Compressor 1 / 2 Settings and Diagnostics
• Number of starts and Working hours are individually counted since the last maintenance. Total
working hours can be read in the standard working hours window (customer window).
• Average Working Hours is the calculation, resulting from starts and working hours.
• Starts per Day Optimum is the number of starts considered as optimum.
• Starts per Day Worst is the number of starts considered as hunting (worst case).
• Number of HP Alarms counts the high-pressure alarms, happened between two service intervals.
• Number of LP Alarms counts the low-pressure alarms, happened between two service intervals.
• Number of TH Alarms counts the thermal protection alarms, happened between two service
intervals.
• Actual Bonus is calculated from number of starts and average working time. Can be positive
(bonus) or negative (penalty). This value influences the time remaining to the next maintenance.
- 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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