Figure 76 User Menus-Sensor Data Parameters Screen - Emerson Liebert CRV User Manual

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Liebert iCOM Control
U301 Temperature Setpoint—Shows the cooling setpoint, which is the setpoint used to drive the
cooling capacity. This parameter will automatically change based on which sensor is used for control
(Return, Supply or Remote sensor).
U302 Actual Control Temperature—The temperature reading of the actual sensor that is
referenced to U301. This parameter automatically changes based on the control sensor setting.
U303 Fan Setpoint—Defines the fan speed setpoint. This value is not shown when a single sensor
(Coupled Mode) is used to control cooling capacity and fan speed. See Figure 57. Sensor Data for the
Chilled water is set for coupled and the Fan Setpoint is not shown. When the fan control sensor is
decoupled from the temperature control sensor, the parameter is calculated by adding the
temperature setpoint and the fan speed delta in the Service / Setpoints menu.
U304 Actual Fan Control Temp—The temperature reading of the actual sensor that is referenced
to U303. This parameter automatically changes based on the control sensor settings (Auto or
De-coupled).
U305 Humidity Setpoint—Allows selecting a humidity that the cooling unit will maintain by
removing or adding moisture to the air. This parameter is adjustable from 20-55%. The default
setting is 45%.
U306 Actual Return Humidity—The return relative humidity reading of the return sensor.
U307 Actual Supply Humidity—The calculated relative humidity of the supply sensor based on the
actual return humidity reading. This value is calculated by using a reverse look up algorithm based
on dew point.
U308 Actual CW Temperature—The actual chilled water supply temperature being delivered to
the unit.
U309 DigiScroll 1 Temperature—When digital scroll compressors are installed in the unit, then
the actual digital scroll number 1 head temperature will be shown.
Active Alarms
Active Alarms—Permits viewing all current, active alarms.
Figure 76 User menus—Sensor data parameters screen
USER MENUS
°C / °F
EVENT SET
% RH
LOG ALARMS
SET
!
1 2
9 3 1 2 3 4 h
ACTIVE
6
SET
ALARMS
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101 Liebert CRV