User manual

Operational Settings
30
6.0 OPERATIONAL SETTINGS
The Liebert XDP with Liebert iCOM controller is configured at the factory with default values for var-
ious settings. Some may be altered for specific sites.
6.1 Using Liebert iCOM User Menu Icons
The User Menu includes the following submenus, some of which may only be viewed and some which
have settings that may be changed (see
Figure 27 to view the icons on the User Menu).
Setpoints
The Liebert XDP’s setpoints menu may be used to change one setting, the Min Room Temperature
Setpoint.
The setting is intended to keep the room temperature above the setpoint. Without a proper setpoint,
the Liebert XDP can lower the room temperature too much, depending on the room dew point and
load. This setpoint will reduce the cooling to keep the room temperature above this desired tempera
-
ture.
The default setting is 72°F (22°C). The range is 50-80°F (10-27°C).
For optimal cooling performance, the minimum temperature setpoint should be at least 1-2° below the
expected temperature at the remote sensors, which may affect placement of the remote sensors. If the
minimum temperature setpoint is set above the typical remote temperature sensor reading, it will
reduce the Liebert XD cooling output and, in extreme cases, cause erratic Liebert XD performance.
6.1.1 Spare Parts List
Spare parts available on site for the Liebert XDP may be recorded in this submenu. To enter the spare
parts, navigate to the submenu and use the UP and Down arrow keys to select letters or numbers
identifying the parts.
6.1.2 Set Alarms
The Set Alarms submenu permits setting alarms that are activated when conditions exceed settings
for high and low room temperature, high room dew point, high refrigerant temperature and high
chilled water temperature (see
Figure 31). This submenu is accessible only by entering the password
(see 4.2.2 - Entering the Password).
High Room Air Temperature—This is the setpoint at which the HIGH TEMP SENSOR A and
HIGH TEMP SENSOR
B alarms will be activated. The range for the high room air temperature
alarms is 33.8-95°F (1-35°C); the default is 80°F (26.6°C).
Low Room Air Temperature—This is the setpoint at which the LOW TEMP SENSOR A and LOW
TEMP SENSOR
B alarms will be activated. The range for the low room air temperature alarms is
33.8-95°F (1-35°C); the default is 55°F (12.7°C).
High Room Dew Point—This is the setpoint at which the HIGH DEW POINT alarm will be acti-
vated. The range for the high room dew point setpoint is 33.8-95°F (1-35°C); the default is 65°F
(18.3°C).
High Refrigerant Temperature—This is the setpoint at which the HIGH REFRIGERANT TEM-
PERATURE alarm will be activated. The range for the high refrigerant temperature setpoint is 33.8-
95°F (1-35°C); the default is 80°F (26°C).
High Chilled Water Temperature—This is the setpoint at which the HIGH CHILLED WATER
TEMP alarm will be activated. The range for the high chilled water temperature setpoint is 33.8-95°F
(1-35°C); the default is 60°F (15.5°C).
NOTE
This is not a true room temperature setpoint. The Liebert XDP has no heaters; it will try to cool
as much as possible. If it is able to cool the room to this setpoint, it will reduce its cooling action
to try to keep the room temperature at or above this setpoint.