Emerson Liebert iCOM User Manual Page 101
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Service Menu Parameters
95
Figure 88 Options setup, page 1 of 5
Compressor Sequence—Changes the lead compressor when cooling is activated. This parameter
can also be set to “AUTO” mode, which will activate the compressor with the lowest run hours first.
Low Pressure Alarm Delay—Sets how long the unit will ignore a low-pressure condition during
compressor startup. This parameter has previously been referred to as a Winter Start Time. This
parameter can be set between 0 to 5 minutes.
Electric Stages—Shows the number of electric stages that can be activated during a call for reheat.
This parameter is set at the factory based on the unit’s model number.
Electrical Heater Capacity (Liebert HPM only)—Shows the electrical heater capacity for units
with both electric and hot water or hot gas reheat. Reduced capacity indicates HW/HG Stage 1,
electric Stage 2; full capacity indicates HW/HG plus low capacity electric Stage 1, high capacity
electric Stage 2.
Hot Water Heat On/Off—This parameter is selectable between “Yes and No”. If “Yes” is selected the
unit is equipped with a hot water heater.
LWD Connected—This parameter is set to “Yes” if a liquid detection device is connected to the
Liebert iCOM.
Valve Control—Selects between two different methods to keep track of valve position when a
stem/3P valve is installed in the unit. This setting does not affect motorized ball valves. If “Time” is
selected then the valve position is tracked by an internal timer in the control to determine the
position or opening of the valve. If “Feedback” is selected then analog input #1 interprets the signal
from the valve to determine its position. Using the “Feedback” setting requires the setup procedure in
3.2.3 - Chilled Water Control.
3P Actuator Runtime—Sets the travel time of the valve to determine the full open and closed
position of the valve. This is set at the factory based on the valve manufacturer’s specifications.
3P Actuator Direction—Selects if the valve is a “Direct” or “Reverse” acting valve.
OPTIONS SETUP (page 1 of 5)
to change parameter
to confirm
to select parameter
for next/previous unit
then
PASSWORD (Actual Level 3) ????
Compressor Sequence
Low Pressure Alarm Delay min
Electric Stages 3
Electrical Heaters Capacity
Hot Water Heat On/Off No
Total Heat Stages 3
LWD Connected No
Valve Control Feedback
2P Actuator Runtime 165sec
3P Actuator Direction Direct
UNIT 01
S401
S402
S403
S404
S405
S406
S407
S408
S409
S410
S411
- Precision Cooling 1
- 2
- TABLE OF CONTENTS 3
- 1.0 INTRODUCTION 7
- 2.1.1 Control Interface 11
- 2.1.2 Accessing Submenus 11
- 2.1.3 Entering a Password 12
- Figure 6 Entering a password 13
- Figure 9 User menu icons 15
- Table 2 User menu icons 15
- SERVICE MENUS 16
- 3.0 OPERATION 18
- Autorestart 19
- Loss of Power Alarm 19
- Operation 20
- Low-Pressure Time Delay 21
- Pump Down 21
- High Pressure Alarm 22
- 3.2.2 Compressor Control 25
- Compressor Proportional Bands 25
- 3.2.3 Chilled Water Control 28
- Cooling—Free-Cooling 30
- Dual Cooling Source 31
- 3.4.2 SCR Reheat 32
- 3.5.1 Humidification 34
- Infrared Humidifier 34
- 3.5.2 Dehumidification 35
- Dehumidification Low Limit 35
- 3.6 Control Types 36
- 3.7.1 Supply Air 38
- 3.8.1 Hardware Setup 39
- 3.8.2 Software Setup 40
- 3.9.2 User Inputs 42
- 3.9.4 Liebert iCOM-DO 44
- Calculating Unit Wellness 46
- 4.0 TEAMWORK 48
- 4.1.3 Teamwork Mode 1 49
- 4.1.4 Teamwork Mode 2 50
- 4.1.5 Standby—Rotation 50
- Standby and Cascade 50
- Small Displays 54
- Large Displays 54
- Small Graphics Display 56
- Liebert iCOM 57
- I/O Board 57
- Optional Large 58
- Graphics Display 58
- (Rear View) 58
- Liebert vNSA 59
- SITESCAN 60
- 7.0 USER MENU PARAMETERS 61
- Spare Part List 62
- Event Log 62
- View Network 62
- Active Alarms 65
- Figure 45 Sleep mode screen 67
- ERVICE MENU PARAMETERS 68
- Unit Diary—Large Display Only 74
- Set Alarm Screens, Pages 4-8 90
- Service Menu Parameters 100
- SL-18835_REV6_11-10 108
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