BACnet Communications - Thermal Management Products
Liebert® IntelliSlot® Modbus/BACnet IP 276Table 90 Extra Notes
Number Description
1This point is supported on: FDM v32
iCOM Controller Version 2.02.xxx
2This point is supported on: FDM v101
iCOM Controller Version 2.03.xxx
Table 91 Liebert HPC™ - Glossary
Data Label Data Description
Actual Supply Fluid Temp Set Point The actual set point value being used for the desired fluid temperature at the outlet
of the unit.
All Pumps Loss of Flow System is shut down due to loss of flow in all available pumps.
Ambient Air Temperature Sensor Issue The ambient air temperature sensor is disconnected or the signal is out of range.
Ambient Air Temperature Ambient air temperature.
Compressor Capacity Control State Compressor capacity control state. When 'ON', the cooling capacity of the
compressor has been reduced.
Compressor Capacity Normal Compressor has returned to normal load capacity.
Compressor Capacity Reduced Compressor capacity has been reduced.
Compressor Contactor Issue Compressor contactor is not closing during compressor startup or is not opening
during compressor shutdown.
Compressor Economizer Utilization Present compressor economizer utilization expressed as a percentage of the
maximum.
Compressor Head Pressure Compressor head pressure.
Compressor High Head Pressure Compressor is shut down due to high head pressure.
Compressor Hours Exceeded [Compressor Hours] has exceeded [Compressor Hours Threshold].
Compressor Hours Threshold Threshold value used in the [Compressor Hours Exceeded] event.
Compressor Hours Operating hours for compressor since last reset of this value.
Compressor Loss of Differential
Pressure Compressor is shut down due to low differential pressure.
Compressor Low Oil Pressure Compressor low oil pressure.
Compressor Low Suction Pressure Compressor is shut down due to low suction pressure.
Compressor Not Stopping Compressor commanded to stop, but continues to run.
Compressor Shut Down - Ambient Air
Low Temp Limit
When the temperature of ambient air falls below this lower threshold, the
compressor will be shut off. Correct condensing pressure cannot be achieved
when temperature is too low.
Compressor State Compressor operational state.
Compressor Superheat Over
Threshold
Compressor discharge refrigerant superheat temperature has exceeded an upper
threshold.
Compressor Thermal Overload Compressor is shut down due to thermal overload.
Compressor Utilization Present compressor utilization expressed as a percentage of the maximum rated
capacity.
Condenser Adiabatic Cooling
Utilization Present adiabatic cooling utilization expressed as a percentage of the maximum.
Condenser Fan Issue Condenser fan is not operating within its operational parameters.
Condenser Fan Speed Condenser fan speed expressed as a percentage of the maximum rated speed.
Condenser Inlet Water Temperature For water cooled condensers, the temperature of the water entering the heat
exchanger, before cooling the refrigerant.
Condenser Max Fan Speed Override Fan spee d exceeding the maximum set point in order to alleviate a high
temperature or pressure condition.
Condenser Outlet Water Temperature For water cooled condensers, the temperature of the water exiting the heat
exchanger, after cooling the refrigerant.