Technical Specifications

BACnet Communications - Thermal Management Products
275 Liebert
®
IntelliSlot
®
Modbus/BACnet
Chilled Water Control Valve
Failure
Chilled water valve out of position. Chilled water control valve position does not match
expected value.
Chilled Water Valve Hours
Operating hours for chilled water valve since last reset of this value. If operating hours
exceeds 32,000, this client will continue to display 32,000, but the iCOM display will show
the actual value.
Chilled Water Valve Reset
Enable
Enable/disable the ability to reset the chilled water valve.
Circuit Cooling Load The amount of heat energy currently being removed by a single refrigeration circuit.
Clogged Air Filter - Event
Control
Enable/disable the activation of the [Clogged Air Filter] 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.
Clogged Air Filter - Event Type The event type for the [Clogged Air Filter] event.
Clogged Air Filter Air filter is dirty and needs to be (cleaned or) replaced.
Cold Aisle Cascade Fan Speed
Max Set Point
Cold aisle maximum fan speed when system is in cascade mode and one or more units in
the system are in standby.
Cold Aisle Control Enable Enable/disable cold aisle control.
Cold Aisle Fan Speed Max Set
Point
Cold aisle maximum fan speed when system is not in cascade mode OR when system is
in cascade mode and no units in the system are in standby.
Cold Aisle Fan Speed Min Set
Point
Cold aisle minimum fan speed.
Cold Aisle Force Max Fan/
Cooling - Ext Control
The cold aisle fan speed and system cooling can be forced to 100% via an external input
signal. Use this value to enable/disable that feature.
Cold Aisle Humidity
Calculation Method
Algorithm used to calculate a single cold aisle humidity value from multiple humidity
measurements.
Cold Aisle Temperature
Calculation Method
Algorithm used to calculate a single cold aisle temperature value from multiple
temperature measurements.
Compressor 1B Hours
Exceeded
Fixed compressor 1B run hours have exceeded the threshold.
Compressor 1B Thermal
Overload
Fixed compressor 1B is shut down due to thermal overload.
Compressor 2B Hours
Exceeded
Fixed compressor 2B run hours have exceeded the threshold.
Compressor 2B Thermal
Overload
Fixed compressor 2B is shut down due to thermal overload.
Compressor Capacity Control
State
Compressor capacity control state. When 'ON', the cooling capacity of the compressor has
been reduced.
Compressor Capacity
Reduced
Compressor capacity has been reduced.
Compressor High Head
Pressure - Event Control
Enable/disable the activation of the [Compressor High Head Pressure] 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.
Compressor High Head
Pressure - Event Type
The event type for the [Compressor High Head Pressure] event.
Compressor High Head
Pressure
Compressor is shut down due to high head pressure.
Compressor High Pressure
Transducer Issue
Compressor high pressure transducer is disconnected or the signal is out of range.
Compressor Hours Exceeded [Compressor Hours] has exceeded [Compressor Hours Threshold].
Compressor Hours Threshold Threshold value used in the [Compressor Hours Exceeded] event.
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