Filter
Top Products
Modbus 485 and Modbus IP Protocols - Thermal Management Products
45 Liebert
®
IntelliSlot
®
Modbus/BACnet IP
Table 13 Liebert CRV
™
- Glossary
Controller Liebert iCOM
®
v4
Data Label Data Description
Air Temperature Control Sensor
Sensor from which air temperature measurements will be used for cooling
and heating control.
Air Temperature Dead Band
Value that is divided evenly to form a temperature range above and below
[Air Temperature Set Point]. If measured air temperature is within this
range, no heating or cooling will occur.
Air Temperature Set Point
Desired air temperature. This set point is dependent upon which sensor is
selected for control.
Auto Restart Delay
If power is lost, the control will delay this amount of time after power is
restored before restarting the unit.
BMS Communications Timeout
Building Management System (or external monitoring system) has not
communicated with the system within the expected timeframe.
BMS Timeout Period
Timeframe within which the Building Management System (or external
monitoring system) must communicate with the system to avoid a timeout.
Bottom Fan Issue The bottom fan is not operating within its normal parameters.
Calculated Next Maintenance Month
Calculated month of the next scheduled maintenance. Used in conjunction
with [Calculated Next Maintenance Year].
Calculated Next Maintenance Year
Calculated year of the next scheduled maintenance. Used in conjunction
with [Calculated Next Maintenance Month].
Chilled Water Control Valve Failure
Chilled water valve out of position. Chilled water control valve position does
not match expected value.
Clogged Air Filter Air filter is dirty and needs to be (cleaned or) replaced.
Compressor 1 High Head Pressure Compressor 1 high head pressure
Compressor 1 High Pressure Transducer
Issue
Compressor 1 high pressure transducer is disconnected or the signal is out
of range.
Compressor 1 Hours Exceeded Operating hours for compressor 1 have exceeded the threshold.
Compressor 1 Low Pressure Transducer
Issue
Compressor 1 low pressure transducer is disconnected or the signal is out
of range.
Compressor 1 Low Suction Pressure Compressor 1 low suction pressure.
Compressor 1 Pump Down Issue
Unable to pump down suction-side pressure during compressor 1
shutdown.
Compressor 1 Short Cycle
Compressor 1 short cycle. A short cycle is defined as turning on and off a
number of times over a set time period.
Condenser 1 Issue Condenser 1 is not operating within its normal parameters.
Condenser Circuit Unspecified General Event
One or more unspecified condenser circuit events active. See local unit
display for further details.
Condenser Control Board Issue The condenser control board is reporting an issue.
Condenser Fan Issue Condenser fan is not operating within its operational parameters.
Condenser Low Noise Mode - Full Days Days of the week selected for low noise mode full day scheduling.
Condenser Low Noise Mode - Interval Days Days of the week selected for low noise mode interval scheduling.
Condenser Low Noise Mode Max Fan Speed Maximum fan speed when condenser is placed in low noise mode.
Condenser Low Noise Mode Schedule
Control
Enable/disable scheduled control of condenser low noise mode.
Condenser Low Noise Mode Start Time The time of day at which the condenser will transition into low noise mode.
Condenser Low Noise Mode State State of condenser low noise mode scheduler control.
Condenser Low Noise Mode Stop Time
The time of day at which the condenser will transition out of low noise
mode.
Condenser Max Fan Speed Override
Fan speed exceeding the maximum set point in order to alleviate a high
temperature or pressure condition.
Condenser Normal Mode Max Fan Speed Maximum fan speed when condenser is not in low noise mode.
Condenser Outside Air Temp Out of
Operating Range
[Condenser Outside Air Temperature] is either above an upper threshold or
below a lower threshold.
Condenser Outside Air Temp Sensor Issue
Condenser outside air temperature sensor is disconnected or the signal is
out of range.