Emerson Liebert iCOM User Manual Page 69
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Service Menu Parameters
63
Figure 47 Setpoints screen, page 1 of 6
Temperature Setpoint—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 factory default is
73°F (22.7°C).
Control Type—Selects the type of control the system will use to activate cooling or heating. A
detailed description of each control type can be found in 3.6 - Control Types.
Temperature Proportional Band—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.
Temperature Integration Time—Adjusts the capacity of the unit based on time away from
setpoint so that accurate temperature control can be maintained. This parameter is active when
Control Type is set to “PI”.
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”.
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.
Second Setpoint—Selects a temperature setpoint that will be activated in the event of a customer
input signal configured as the 2nd Setpoint. The customer input must be configured for this
parameter to activate. This parameter is adjustable from 41-104°F (5-40°C). The factory default
setting is 73°F (22.7°C).
Backup Temperature Setpoint—Selects a temperature setpoint that will be activated in the event
of a BMS Timeout. The BMS timer must be configured for this parameter to activate. This parameter
is adjustable from 41-104°F (5-40°C). The factory default setting is 73°F (22.7°C).
Heaters 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.
SETPOINTS (pg 1 of 6)
to change parameter
to confirm
to select parameter
for next/previous unit
then
UNIT 01
PASSWORD (Actual Level 0)
Temperature Setpoint
Control Type
Temperature Proportional Band
Temperature Integration Time
AutoSet Enable
Temperature DeadBand
Second Setpoint
Backup Temperature Setpoint
Heaters DeadBand
????
73°F
Proportional
5°F
min
No
0°F
73°F
73°F
°F
S101
S102
S103
S104
S105
S106
S107
S108
S109
S110
S111
- 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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