Emerson Liebert iCOM Manual De Usuario

U240 SP Transducer High Range—Sets the pressure range at which the High Static Pressure Out 

of Range Alarm is activated. This parameter range is adjustable from 0.000 - 1.405 inWC. The factory 

default is 1.284 inWC.
U241 SP Transducer Low Range—Sets the pressure range at which the Low Static Pressure Out 

of Range Alarm is activated. This parameter range is adjustable from 0.000 - 1.395 inWC. The factory 

default is 0.000 inWC.

Sensor Data shows the readings and status of standard and optional sensors.

U301 Sensor A: T / H—Shows the calibrated Sensor A temperature (left hand value) and humidity 

(right hand value) if the optional reference sensor is connected to the Liebert iCOM controller area 

network (CAN) bus. A reference sensor can be connected to any type of Liebert iCOM unit. Sensor A is 

selected by setting the DIP switches on the temperature and humidity board. Refer to 4.3.2 - DIP 

Switch Settings.
U302 Sensor B: T1 / T2 / H—Shows the calibrated Sensor B temperature (left hand value), second 

temperature reading in the if sensor B is a 2T, and humidity (right hand value) if sensor B is a T/H 

sensor. Sensor B is an optional reference sensor connected to the Liebert iCOM controller area 

network (CAN) bus. A reference sensor can be connected to any type of Liebert iCOM unit. Sensor B is 

selected by setting the DIP switches on the temperature and humidity board. Refer to 4.3.2 - DIP 

Switch Settings.
U303 Sensor C: T1 / T2 / H—Shows the calibrated Sensor C temperature (left hand value), a second 

temperature reading if sensor C is a 2T (middle), and humidity (right hand value) if sensor C is a T/H 

sensor. Sensor C is an optional reference sensor connected to the Liebert iCOM controller area 

network (CAN) bus. Sensor C is selected by setting the DIP switches on the temperature and 

humidity board. Refer to 4.3.2 - DIP Switch Settings. A reference sensor 'C' can be connected to any 

type of Liebert iCOM unit unless the unit is equipped with an air side economizer. When the unit has 

an air side economizer, this parameter represents the outside air temperature and humidity. See the 

description below for more details. 
U303 Outdoor Temp / Hum—Reads the calibrated outdoor temperature (left hand value) and 

humidity (right hand value) for air side economizer units. These readings are used to determine air 

side economizer eligibility. It is determined by comparing the temp between the room and outdoor air 

temperature.
U304 FC Fluid Temperature—Displays the calibrated temperature of the incoming water on units 

equipped with a free-cooling coil.