BACnet Communications - Thermal Management Products
277 Liebert® IntelliSlot® Modbus/BACnet IP
Customer Input 1 Customer input 1.
Customer Input 2 Customer input 2.
Customer Input 3 Customer input 3.
Customer Input 4 Customer input 4.
EEV Unspecified General Event One or more unspecified electronic expansion valve events active. See local unit
display for further details.
Evaporator Fluid Freeze - Auto Reset
Evaporator outlet fluid temperature has dropped below the freeze threshold.
Evaporator has been shut down, but will restart when the temperature rises above
the threshold.
Evaporator Fluid Freeze - Manual
Reset Required
Evaporator outlet fluid temperature has dropped below the freeze threshold.
Evaporator has been shut down and requires a manual reset.
Evaporator Inlet Temp Sensor Issue The evaporator inlet temperature sensor is disconnected or the signal is out of
range.
Evaporator Return Fluid Over Temp
Alarm Threshold Alarm threshold value used in the [Evaporator Return Fluid Over Temp] event.
Evaporator Return Fluid Over Temp
Warning Threshold Warning threshold value used in the [Evaporator Return Fluid Over Temp] event.
Evaporator Return Fluid Over Temp [Evaporator Return Fluid Temperature] has exceeded a threshold. The event is
deactivated when the temperature drops below the threshold.
Evaporator Return Fluid Temperature Fluid temperature measured at the inl et of the evaporator.
Evaporator Return Fluid Under Temp
Alarm Threshold Alarm threshold value used in the [Evaporator Return Fluid Under Temp] event.
Evaporator Return Fluid Under Temp
Warning Threshold Warning threshold value used in the [Evaporator Return Fluid Under Temp] event.
Evaporator Return Fluid Under Temp [Evaporator Return Fluid Temperature] has dropped below a threshold. The event
is deactivated when the temperature rises above the threshold.
Fluid Cooling Proportional Band
Temperature control band above [Actual Supply Fluid Temp Set Point]. If [Return
Fluid Temperature] is within this band, fluid cooling operations are proportionally
controlled.
Fluid Pressure Fluid pressure. This is the pressure within a closed water/glycol circuit.
Free Cooling External Temperature
Delta
Minimum temperature delta required between return fluid and external ambient air
temperatures in order to enable free cooling.
Free Cooling Status Free cooling status.
Free Cooling Utilization Present free cooling utilization expressed as a percentage of the maximum.
Free Cooling Valve Hours Exceeded [Free Cooling Valve Hours] has exceeded [Free Cooling Valve Hours Threshold].
Free Cooling Valve Hours Threshold Threshold value used in the [Free Cooling Valve Hours Exceeded] event.
Free Cooling Valve Hours Operating hours for free cooling valve since last reset of this value.
Free Cooling Valve Open Position Free cool ing valve open position.
Humidifier Control Board Not Detected Humidifier control board is required to be connected, but no signal is detected.
Low Condenser Refrigerant Pressure Refrigerant pressure in condenser coil is too low.
Low Fluid Pressure [Fluid Pressure] has dropped below a specified threshold.
Master Unit Communication Lost Communication with master unit has been lost.
Pump 1 Loss of Flow Loss of flow is detected in pump 1. This condition occurs when no flow is detected
through the flow switch.
Pump 1 State Pump 1 operational state.
Pump 2 Loss of Flow Loss of flow is detected in pump 2. This condition occurs when no flow is detected
through the flow switch.
Pump 2 State Pump 2 operational state.
Pump Hours Exceeded [Pump Hours] has exceeded [Pump Hours Threshold].
Table 91 Liebert HPC™ - Glossary (continued)
Data Label Data Description