Technical Specifications

BACnet Communications - Thermal Management Products
Liebert
®
IntelliSlot
®
Modbus/BACnet 284
Humidity Proportional Control
Type
Type of algorithm to use for proportional control of output humidity.
Humidity Proportional Control
Type
Type of algorithm to use for proportional control of output humidity.
Humidity Set Point Desired relative humidity.
Infrared Humidifier Flush Rate
A multiple of an internal time constant that determines the flush duration of the infrared
humidifier water pan.
Input Undervoltage One or more of the input phase voltages has dropped below the limit.
Instantaneous Power Total electrical power currently being consumed.
Loss of Air Flow No air flow through the unit due to failure of all fans.
Low Return Humidity - Event
Control
Enable/disable the activation of the [Low Return Humidity] event. If set to “disabled,” the
event will not be annunciated. This implies that the event will not be placed in any active
event list or in any event history list.
Low Return Humidity - Event
Type
The event type for the [Low Return Humidity] event.
Low Return Humidity
Threshold
Threshold value used in the [Low Return Humidity] event.
Low Return Humidity Return air low humidity event.
Low Static Pressure Low static pressure event.
Main Chilled Water Valve The primary valve in a dual valve chilled water system.
Main Fan Overload - Event
Control
Enable/disable the activation of the [Main Fan Overload] event. If set to “disabled,” the
event will not be annunciated. This implies that the event will not be placed in any active
event list or in any event history list.
Main Fan Overload - Event
Type
The event type for the [Main Fan Overload] event.
Main Fan Overload Main fan is shut down due to thermal overload.
Maintenance Completed Maintenance has been completed on the unit.
Maintenance Due The calculated maintenance date has been reached.
Maintenance Ramp
The ratio of operations performed to the calculated operations available between
maintenance intervals.
Maintenance Tracking State Maintenance tracking operational state.
Master Unit Communication
Lost - Event Control
Enable/disable the activation of the [Master Unit Communication Lost] event. If set to
“disabled,” the event will not be annunciated. This implies that the event will not be placed
in any active event list or in any event history list.
Master Unit Communication
Lost - Event Type
The event type for the [Master Unit Communication Lost] event.
Master Unit Communication
Lost
Communication with master unit has been lost.
Minimum Chilled Water Temp
Set Point Enable
Enable/disable the activation of [Minimum Chilled Water Temp Set Point].
Minimum Chilled Water Temp
Set Point
Minimum desired chilled water temperature.
Mixed Mode Lockout
Mixed mode has been entered too many times over a rolling time period and has been
temporarily disabled. Mixed mode is defined as the use of a compressor on one
refrigeration circuit and the use of a refrigerant pump on the other circuit.
Modbus Power Meter
Communication Lost
Communication with Modbus power meter has been lost.
Outside Air Temperature Ambient outside air temperature.
Pump Hours Operating hours for pump since last reset of this value.
Table 86 Liebert Challenger 3000
™
, Liebert Challenger ITR
™
, Liebert CW
™
, Liebert Deluxe System/3
™
,
Liebert DS
™
, Liebert DSE
™
, Liebert HPM
™
, Liebert PeX
™
, Liebert PDX
™
- Glossary (continued)
Data Label Data Description