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Chilled water precision cooling unit (computer room air handler) · BACnet points list

Vertiv Liebert iCOM DCL chilled water cooling BACnet points list

Updated 6 November 2026

Short answer

The Liebert iCOM DCL chilled water cooling reports to a BMS through a Liebert IntelliSlot card (IS-UNITY-DP, for BACnet IP or BACnet MS/TP). The object list has Binary Values for events, Analog Values for temperatures, humidity, setpoints and run hours, and Multi-state Values for states and control modes. Objects are created on the card when it discovers the unit, so only options fitted to the unit appear.

This page lists 97 BACnet objects for the Vertiv Liebert iCOM DCL chilled water cooling — 34 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Vertiv’s own free documentation, linked below.

Manufacturer
Vertiv
Model
Liebert iCOM DCL chilled water cooling
Equipment
Chilled water precision cooling unit (computer room air handler)
Equipment type
Rooftop units, AHUs & DOAS
BACnet objects
97 (34 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Also known as
Liebert DCL, iCOM DCL, SL-28170
Source document
Liebert IntelliSlot Modbus/BACnet Reference Guide (Modbus RTU and TCP, BACnet MSTP and IP) · SL-28170 · rev. 2024-04 (Rev 29)
Download CSV 97 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against Vertiv’s current documentation and the live device before use. Not official Vertiv information. Terms of use.

BMS integration notes: Vertiv Liebert iCOM DCL chilled water cooling

Integration in brief

Fit a Liebert IntelliSlot BACnet card (IS-UNITY-DP for BACnet IP or MS/TP), give it a unique device instance and let it discover the unit; the objects are then created automatically. Map the on/off and setpoint objects if the BMS controls the unit, and the status, main measurements and event objects for monitoring.

Minimum points to map

The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.

ObjectNameWhyAccess
MV 1215143_1On/off command (1=off, 2=on)Write
MV 1334717_1Acknowledge / reset eventsWrite
MV 1084706_1Run / standby / off stateRead
MV 1074123_1Normal, warning or alarm stateRead
BV 1505113_1Unit shut down by an eventRead

Network setup

Watch out for

Vertiv Liebert iCOM DCL chilled water cooling BACnet objects

Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.

97 of 97 shown
Type
BinaryMulti-state
Access
Show
Vertiv Liebert iCOM DCL chilled water cooling BACnet Points List
DescriptionStates
BV15015_1Supply Air Over TemperatureReadActive = alarm
BV25019_1Supply Air Under TemperatureReadActive = alarm
BV35023_1Return Air Over TemperatureReadActive = alarm
BV45026_1Supply Air Sensor IssueReadActive = alarm
BV55147_1Return Air Sensor IssueReadActive = alarm
BV66274_1Unit Top Return Air Sensor FailureReadActive = alarm
BV76275_1Unit Middle Return Air Sensor FailureReadActive = alarm
BV86276_1Unit Bottom Return Air Sensor FailureReadActive = alarm
BV96277_1Unit Top Supply Air Sensor FailureReadActive = alarm
BV106278_1Unit Middle First Supply Air Sensor FailureReadActive = alarm
BV116284_1Unit Middle Second Supply Air Sensor FailureReadActive = alarm
BV126279_1Unit Bottom Supply Air Sensor FailureReadActive = alarm
BV136358_1Pipe Temperature Sensor FailureReadActive = alarm
BV245034_1High Return HumidityReadActive = alarm
BV255036_1Low Return HumidityReadActive = alarm
BV265038_1Dehumidifier Hours ExceededReadActive = alarm
BV375053_1Loss of Air FlowReadActive = alarm
BV385054_1Fan Hours ExceededReadActive = alarm
BV395055_1Top Fan IssueReadActive = alarm
BV405056_1Bottom Fan IssueReadActive = alarm
BV515060_1Remote Sensor Issue (Remote Sensors 1)ReadActive = alarm
BV625060_2Remote Sensor Issue (Remote Sensors 2)ReadActive = alarm
BV845060_4Remote Sensor Issue (Remote Sensors 4)ReadActive = alarm
BV954703_1Chilled Water Control Valve FailureReadActive = alarm
BV964980_1Supply Chilled Water Loss of FlowReadActive = alarm
BV976293_1Chilled Water Control ActiveReadActive = alarm
BV986297_1Modbus 0-10V Module Communication FailureReadActive = alarm
BV1096294_1_1Chilled Water Flow Transducer Failure (Chilled Water Circuit 1)ReadActive = alarm
BV1106295_1_1Chilled Water Inlet Temperature Sensor Failure (Chilled Water Circuit 1)ReadActive = alarm
BV1116296_1_1Chilled Water High Inlet Temperature (Chilled Water Circuit 1)ReadActive = alarm
BV1226294_1_2Chilled Water Flow Transducer Failure (Chilled Water Circuit 2)ReadActive = alarm
BV1236295_1_2Chilled Water Inlet Temperature Sensor Failure (Chilled Water Circuit 2)ReadActive = alarm
BV1246296_1_2Chilled Water High Inlet Temperature (Chilled Water Circuit 2)ReadActive = alarm
BV1354270_1Customer Input 1ReadActive = alarm
BV1364271_1Customer Input 2ReadActive = alarm
BV1374272_1Customer Input 3ReadActive = alarm
BV1384273_1Customer Input 4ReadActive = alarm
BV1394720_1Smoke DetectedReadActive = alarm
BV1404723_1Water Under FloorReadActive = alarm
BV1414726_1Service RequiredReadActive = alarm
BV1425104_1Ext Over TemperatureReadActive = alarm
BV1435105_1Ext Loss of FlowReadActive = alarm
BV1445106_1Ext Condenser Pump High WaterReadActive = alarm
BV1455107_1Ext Standby Glycol Pump OnReadActive = alarm
BV1465108_1External Fire DetectedReadActive = alarm
BV1475109_1Unit OnReadActive = alarm
BV1485110_1Unit OffReadActive = alarm
BV1495112_1Unit Partial ShutdownReadActive = alarm
BVmin1505113_1Unit ShutdownReadActive = alarm
BV1515114_1Water Leakage Detector Sensor IssueReadActive = alarm
BV1525115_1BMS Communications TimeoutReadActive = alarm
BV1535116_1Maintenance DueReadActive = alarm
BV1545117_1Maintenance CompletedReadActive = alarm
BV1555119_1RAM Battery IssueReadActive = alarm
BV1565121_1High Power ShutdownReadActive = alarm
BV1575588_1Unspecified General EventReadActive = alarm
BV1586299_1Rack Doors OpenReadActive = alarm
MV14553_1Server ClassRead1=UPS, 2=AIR, 3=PMP, 4=PDU, 5=MONITOR
MV125012_1Air Temperature Control SensorWrite1=Supply, 2=Remote, 3=Return
MV135013_1Remote Sensor Temperature CalculationWrite1=Average, 2=Maximum
MV146266_1Return Temperature/Humidity Sensor Control TypeWrite1=Average, 2=Maximum, 3=Top Sensor, 4=Middle Sensor, 5=Bottom Sensor
MV156267_1Supply Temperature Sensor Control TypeWrite1=Average, 2=Maximum, 3=Top Sensor, 4=Middle Sensor 1, 5=Middle Sensor 2, 6=Bottom Sensor
MV265387_1Dehumidifier StateWrite1=off, 2=on
MV375047_1Fan Control ModeWrite1=Internal (Auto), 2=External (Manual)
MV386449_1Fan Control SensorWrite1=Supply Sensor, 2=Remote Sensor, 3=Return Sensor, 4=Delta Ret-Sup, 5=Delta Remote, 6=Pipe Sensor
MV495058_1Remote Sensor Function (Remote Sensors 1)Write1=Disable, 2=Reference, 3=Control
MV605058_2Remote Sensor Function (Remote Sensors 2)Write1=Disable, 2=Reference, 3=Control
MV825058_4Remote Sensor Function (Remote Sensors 4)Write1=Disable, 2=Reference, 3=Control
MV936286_1Chilled Water Valve ControlWrite1=Single, 2=2 Parallel, 3=2 Alternate, 4=2 Cascade
MV946287_1Chilled Water Main ValveWrite
MV956288_1Chilled Water Auto Valve RotationWrite1=disabled, 2=enabled
MV966290_1Chilled Water Inlet Temperature ControlWrite1=disabled, 2=enabled
MVmin1074123_1System StatusRead1=Normal Operation, 2=StartUp, 3=Normal with Warning, 4=Normal with Alarm, 5=Abnormal Operation
MVmin1084706_1Unit Operating StateRead1=off, 2=on, 3=standby
MV1094707_1Unit Control ModeRead1=Internal (Auto), 2=External (Manual)
MV1105074_1Unit Operating State ReasonRead1=Reason Unknown, 2=Network Display, 3=Alarm, 4=Schedule, 5=Remote System, 6=External Input, 7=Local Display
MVmin1215143_1System On/Off ControlWrite1=off, 2=on
MV1226361_1Rack Door Open Sensor SelectionRead1=Supply Sensor, 2=Rack Sensor 1, 3=Rack Sensor 2, 4=Rack Sensor 3, 5=Rack Sensor 4
MVmin1334717_1System Event Acknowledge/ResetWrite1=Reset, 2=Acknowledge
MV1344721_1Smoke Detected - Event ControlWrite1=disabled, 2=enabled
MV1354722_1Smoke Detected - Event TypeWrite1=Message, 2=Warning, 3=Alarm
MV1364724_1Water Under Floor - Event ControlWrite1=disabled, 2=enabled
MV1374725_1Water Under Floor - Event TypeWrite1=Message, 2=Warning, 3=Alarm
MV1384718_1Customer Input 1 - Event ControlWrite1=disabled, 2=enabled
MV1394719_1Customer Input 1 - Event TypeWrite1=Message, 2=Warning, 3=Alarm
MV1405098_1Customer Input 2 - Event ControlWrite1=disabled, 2=enabled
MV1415099_1Customer Input 2 - Event TypeWrite1=Message, 2=Warning, 3=Alarm
MV1425100_1Customer Input 3 - Event ControlWrite1=disabled, 2=enabled
MV1435101_1Customer Input 3 - Event TypeWrite1=Message, 2=Warning, 3=Alarm
MV1445102_1Customer Input 4 - Event ControlWrite1=disabled, 2=enabled
MV1455103_1Customer Input 4 - Event TypeWrite1=Message, 2=Warning, 3=Alarm
MV1464727_1Service Required - Event ControlWrite1=disabled, 2=enabled
MV1474728_1Service Required - Event TypeWrite1=Message, 2=Warning, 3=Alarm
MV1485082_1Ext Loss of Flow - Event ControlWrite1=disabled, 2=enabled
MV1495083_1Ext Loss of Flow - Event TypeWrite1=Message, 2=Warning, 3=Alarm
MV1505090_1Ext Over Temperature - Event ControlWrite1=disabled, 2=enabled
MV1515091_1Ext Over Temperature - Event TypeWrite1=Message, 2=Warning, 3=Alarm
Object ID lookup: Vertiv Liebert iCOM DCL chilled water cooling point IDs by name

Integration notes

Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Liebert iCOM DCL chilled water cooling and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.

Questions about the Vertiv Liebert iCOM DCL chilled water cooling

How many BACnet points does the Vertiv Liebert iCOM DCL chilled water cooling have?

This list has 97 BACnet objects: 57 binary values, 40 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Vertiv Liebert iCOM DCL chilled water cooling BACnet points are writable?

34 of the 97 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.

Where is the official Vertiv Liebert iCOM DCL chilled water cooling BACnet documentation?

The source is Liebert IntelliSlot Modbus/BACnet Reference Guide (Modbus RTU and TCP, BACnet MSTP and IP) (SL-28170), revision 2024-04 (Rev 29), published free by Vertiv at https://www.vertiv.com/49fb41/globalassets/shared/liebert-intellislot-modbus-rtu-reference-guide-SL-28170_0.pdf.

What are the minimum BACnet points to integrate the Vertiv Liebert iCOM DCL chilled water cooling?

Start with MV 121 5143_1 (On/off command (1=off, 2=on)); MV 133 4717_1 (Acknowledge / reset events); MV 108 4706_1 (Run / standby / off state); MV 107 4123_1 (Normal, warning or alarm state); BV 150 5113_1 (Unit shut down by an event).

How do I check these points on the real Liebert iCOM DCL chilled water cooling?

Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.

More Vertiv BACnet points lists

Source: Liebert IntelliSlot Modbus/BACnet Reference Guide (Modbus RTU and TCP, BACnet MSTP and IP) · SL-28170 · rev. 2024-04 (Rev 29). Object names, instances and units are reproduced as published; descriptions are our own.