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Water-cooled centrifugal chiller controller · BACnet points list

Carrier AquaEdge 19XR (PIC 5) BACnet points list

Updated 28 October 2026

Short answer

The PIC 5 controller on the 19XR talks BACnet IP over its Ethernet port once the optional BACnet dongle is fitted and BACnet is enabled in the CONNECT menu. It exposes up to 500 AV and BV objects named <CCN table>_<point>; the published table lists 159. Commands use paired _rd and _wr objects, with the _wr copies marked commandable; setpoints in the SETPOINT table are read/write.

This page lists 159 BACnet objects for the Carrier AquaEdge 19XR (PIC 5) — 14 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Carrier’s own free documentation, linked below.

Manufacturer
Carrier
Model
AquaEdge 19XR (PIC 5)
Equipment
Water-cooled centrifugal chiller controller
Equipment type
Chillers
BACnet objects
159 (14 writable)
Transport
BACnet IP
Firmware
19XRPIC5 software version 3.3
Default device instance
1600001
Also known as
19XR, AquaEdge 19XR, PIC 5, PIC5, 19XR-CLT-3T, centrifugal chiller
Source document
AquaEdge 19XR Two-Stage High-Efficiency Semi-Hermetic Centrifugal Liquid Chillers with PIC 5 Controls - Controls Operation and Troubleshooting (Appendix D) · 19XR-CLT-3T · rev. 2016-11
Download CSV 159 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Download Easy BACnet Mobile App Google Play

BMS integration notes: Carrier AquaEdge 19XR (PIC 5)

Integration in brief

Fit the BACnet dongle, set BACnet Enable, network number and identifier in the CONNECT menu, and put the chiller in NETWORK control mode. It then starts when both BV 40 start/stop and BV 42 occupancy are true; write control point and demand limit through the _wr objects and read status, water temperatures and alarms.

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
BV 40GENUNIT_CHIL_S_S_wrNetwork start/stop commandCommand
BV 42GENUNIT_CHIL_OCC_wrNetwork occupied commandCommand
BV 41GENUNIT_EMSTOP_wrEmergency stop commandCommand
AV 114GENUNIT_CTRL_PNT_wrControl point commandCommand
AV 115GENUNIT_DEM_LIM_wrDemand limit commandCommand
AV 1GENUNIT_ctl_modeControl mode: Local, Network, Remote, Local SchedRead
AV 7GENUNIT_ch_stateChiller status codeRead
AV 9TEMP_LCWLeaving chilled water temperatureRead
AV 8TEMP_ECWEntering chilled water temperatureRead
AV 68ALARMRST_alarm_1Current alarm 1Read

Enable & remote start

In NETWORK control mode the chiller starts and stops from the CHIL_S_S and CHIL_OCC points written over the network (both must be true). Use EMSTOP or the HMI to shut it down. A STOP OVERRIDE point in GENUNIT, if enabled, prevents starting.

Network setup

Watch out for

Carrier AquaEdge 19XR (PIC 5) 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.

159 of 159 shown
Type
AnalogBinary
Access
Show
Carrier AquaEdge 19XR (PIC 5) BACnet Points List
DescriptionStates
AVmin68ALARMRST_alarm_1Jbus Current Alarm 1Read
AV69ALARMRST_alarm_2Jbus Current Alarm 2Read
AV70ALARMRST_alarm_3Jbus Current Alarm 3Read
AV71ALARMRST_alarm_4Jbus Current Alarm 4Read
AV72ALARMRST_alarm_5Jbus Current Alarm 5Read
AV76CAPACTRL_cm_stat1Comp1 Run State ValRead
AV73CAPACTRL_ctrl_wtControlled Water TempRead
AV74CAPACTRL_gv1_tgtTarget GV1 PosRead
AV75CAPACTRL_vfd_tgtTarget VFD Speed PerRead
AV96CFGSURGE_gv1_pfulIGV1 Full Load PositionRead
AV95CFGSURGE_gv1_pminIGV1 Minimum PositionRead
AV99CFGSURGE_sgl_hoffEnvelop Upper DeadbandRead
AV98CFGSURGE_sgl_loffEnvelop Lower DeadbandRead
AV97CFGSURGE_sgl_offEnvelop Line OffsetRead
AV103CFGSURGE_sgl_proSurge Profile OffsetRead
AV100CFGSURGE_sgl_shfhSurge Line Shape FactorRead
AV101CFGSURGE_sgl_shflSound Line Shape FactorRead
AV102CFGSURGE_sgl_spdfEnvelop Speed FactorRead
AV104CONF_OPT_hgbp_optEC Valve OptionReadNo=0, Cont.=1, ON/OFF=2, mA=3
AV105CONF_OPT_hgbp_selEC SelectionReadDisable=0, Surge=1, Low Load=2, Comb=3
BV37CONNECT_bacenaBACnet EnableRead
BV38CONNECT_bacunitBACnet Metric UnitRead
AV107CONNECT_identBACnet IdentifierRead
AV106CONNECT_networkBACnet NetworkRead
AV4GENUNIT_AMPS_PPercent Load CurrentRead
AVmin7GENUNIT_ch_stateChiller Status CodeRead
BV3GENUNIT_CHIL_OCC_rdNetwork:Cmd OccupiedRead
BVmin42GENUNIT_CHIL_OCC_wrNetwork:Cmd OccupiedCommand
BV2GENUNIT_CHIL_S_S_rdNetwork:Cmd Start/StopRead
BVmin40GENUNIT_CHIL_S_S_wrNetwork:Cmd Start/StopCommand
AVmin1GENUNIT_ctl_modeControl ModeReadLocal=0, Network=1, Remote=2, Local Sched=3
AV3GENUNIT_CTRL_PNT_rdControl PointRead
AVmin114GENUNIT_CTRL_PNT_wrControl PointCommand
AV6GENUNIT_DEM_LIM_rdActual Demand LimitRead
AVmin115GENUNIT_DEM_LIM_wrActual Demand LimitCommand
BV4GENUNIT_EMSTOP_rdEmergency StopRead
BVmin41GENUNIT_EMSTOP_wrEmergency StopCommand
BV7GENUNIT_FC_START_rdStart Free CoolingRead
BV43GENUNIT_FC_START_wrStart Free CoolingCommand
AV2GENUNIT_HC_SEL_rdCooling/Heating SelectRead
AV116GENUNIT_HC_SEL_wrCooling/Heating SelectCommand
BV6GENUNIT_ice_occIce Schedule OccupiedRead
AV5GENUNIT_KW_PMotor Percent KilowattsRead
BV5GENUNIT_loc_occLocal Schedule OccupiedRead
BV1GENUNIT_statstopDeter Start Stop CommandRead
AV45HYDRLIC_CDW_FVCond Water Flow ValueRead
AV46HYDRLIC_cdw_pdCondenser Water Delta PRead
BV27HYDRLIC_CDWPCondenser Water PumpRead
AV47HYDRLIC_CHW_FVChilled Water Flow ValueRead
AV48HYDRLIC_chw_pdChilled Water Delta PRead
BV28HYDRLIC_CHWPChilled Water PumpRead
AV36INPUTS_DMP_ACTDamper Valve StatusReadCl=0, Inter=1, Op=2, Fail=3
BV11INPUTS_E_STOPEmergency Stop ContactRead
BV16INPUTS_FS_LOCKFire Security InterlockRead
AV38INPUTS_GV1_ACTGuide Vane 1 Actual PosRead
AV37INPUTS_HGBP_ACTEC Valve StatusReadCl=0, Inter=1, Op=2, Fail=3
AV40INPUTS_HGBPACTPActual ECV Pos PerRead
BV9INPUTS_HP_SWHigh Pressure SwitchRead
BV12INPUTS_ICE_CONIce Build ContactRead
BV10INPUTS_REM_CONRemote ContactRead
BV13INPUTS_REM_LOCKChiller LockoutRead
BV14INPUTS_SAFETYSpare Safety InputRead
BV8INPUTS_STAR_AUXCompressor Start ContactRead
BV15INPUTS_STARTFLTStarter Fault FeedbackRead
BV17INPUTS_TRIPRISM Trip Relay StatusRead
AV39INPUTS_VFD_ACTActual VFD Speed PerRead
BV36LABONLY_gv1_fcGV1 ForcedRead
BV35MAIN_MS_lag_s_sSlave Start/StopRead
AV90MAIN_MS_lagstartLag Start TimerRead
AV89MAIN_MS_lagstatSlave Run StatusRead
AV91MAIN_MS_lagstopLag Stop TimerRead
AV87MAIN_MS_lead_lagUnit is Lead or LagReadDisable=0, Lead=1, Lag=2
BV34MAIN_MS_ll_commLead Lag CommunicationRead
AV88MAIN_MS_ll_faultMaster Slave FaultReadNo Fault=0, Master=1, Slave=2, Both=3
AV94MAIN_MS_ll_hr_dLead/Lag Hours DeltaRead
AV92MAIN_MS_prefltPrestart Fault TimerRead
AV93MAIN_MS_pulltimePulldown TimerRead
BV33MAIN_SRD_diff_almSRD Rotating Stall AlarmRead
AV85MAIN_SRD_lift_1VDO High Lift Load LineRead
AV86MAIN_SRD_lift_2VDO Low Lift Load LineRead
AV84MAIN_SRD_lift_aActual LiftRead
AV77MAISURGE_act_regSurge RegionReadNo=0, Low=1, High=2, Deadband=3, Noise=4
AV78MAISURGE_dts_actActual Delta TsatRead
AV79MAISURGE_dts_calCalc Ref Delta TsatRead
AV80MAISURGE_scSurge CountsRead
AV81MAISURGE_spcSurge Protection CountsRead
AV82MAISURGE_surg_actSurge Prevention ActiveRead
AV83MAISURGE_surg_proSurge Protection ActiveRead
BV19OUTPUTS_ALEAlert RelayRead
BV18OUTPUTS_ALMAlarm RelayRead
AV41OUTPUTS_CHST_OUTChiller Stat Output mARead
BV20OUTPUTS_COMP_SRCompressor Start RelayRead
AV42OUTPUTS_exv_tgtOil EXV TargetRead
BV21OUTPUTS_GV1_DECGuide Vane 1 DecreaseRead
BV22OUTPUTS_GV1_INCGuide Vane 1 IncreaseRead
AV44OUTPUTS_hdpv_tgtHead Pres Valve Tgt PosRead
BV23OUTPUTS_OIL_HEATOil Heater RelayRead
BV24OUTPUTS_OIL_PUMPOil Pump RelayRead
AV43OUTPUTS_op_vfd_tOil Pump VFD TargetRead
BV25OUTPUTS_TFR_HIGHTower Fan Relay HighRead
BV26OUTPUTS_TFR_LOWTower Fan Relay LowRead
AV51POWER_I_AMPS_A_IActual Line CurrentRead
AV52POWER_I_AMPS_P_IPercent Line CurrentRead
AV55POWER_I_KWMotor KilowattsRead
AV56POWER_I_POW_FACTMotor Power FactorRead
AV53POWER_I_VOLT_AActual Line VoltageRead
AV54POWER_I_VOLT_PPercent Line VoltageRead
AV67POWER_O_alm_codeVFD Alarm CodeRead
AV59POWER_O_bus_voltDC Bus VoltageRead
AV64POWER_O_enc_tempVFD Enclosure TempRead
AV65POWER_O_inv_tempInverter TemperatureRead
BV30POWER_O_lrtem_swLR Temp SwitchRead
AV58POWER_O_MOT_FREQMotor Actual FrequencyRead
AV62POWER_O_motor_kwMotor KilowattsRead
AV61POWER_O_motor_pfMotor Power FactorRead
AV63POWER_O_motorkwhMotor Kilowatt-HoursRead
BV29POWER_O_prech_fdPrecharge FeedbackRead
AV66POWER_O_rec_tempRectifier TemperatureRead
BV31POWER_O_spd_fdSPD FeedbackRead
AV60POWER_O_vfd_actActual VFD Speed PerRead
AV57POWER_O_VFD_LOADVFD Load CurrentRead
BV32POWER_O_VFDC_HIHigh VFD CurrentRead
AV31PRESSURE_COND_PCondenser PressureRead
AV34PRESSURE_DIFF_PDiffuser PressureRead
AV32PRESSURE_ECON_PEconomizer PressureRead
AV30PRESSURE_EVAP_PEvaporator PressureRead
AV35PRESSURE_HEAD_PHead Pressure ReferenceRead
AV33PRESSURE_OIL_PDOil Pump Delta PRead
AV49RUNTIME_C_STARTSCompressor Starts NumRead
AV50RUNTIME_SRV_HRSAfter Service HrsRead
AV113SETPOINT_dem_baseBase Demand LimitWrite
AV110SETPOINT_ecdw_spHeating ECDW SetpointWrite
AV108SETPOINT_ecw_spCooling ECW SetpointWrite
BV39SETPOINT_EWT_OPTEWT Control OptionWrite
AV112SETPOINT_ice_spIce Build SetpointWrite
AV111SETPOINT_lcdw_spHeating LCDW SetpointWrite
AV109SETPOINT_lcw_spCooling LCW SetpointWrite
AV15TEMP_cond_appCondenser ApproachRead
AV16TEMP_COND_SATCond Sat Refrig TempRead
AV17TEMP_DGTComp Discharge TempRead
AV18TEMP_DSHDischarge SuperheatRead
AV10TEMP_ECDWEntering Condenser WaterRead
AVmin8TEMP_ECWEntering Chilled WaterRead
AV14TEMP_evap_appEvaporator ApproachRead
AV12TEMP_EVAP_SATEvap Sat Refrig TempRead
AV13TEMP_EVAP_TEvap Refrig Liquid TempRead
AV11TEMP_LCDWLeaving Condenser WaterRead
AVmin9TEMP_LCWLeaving Chilled WaterRead
AV20TEMP_MTRBThrust Bearing TempRead
AV19TEMP_MTRB_OILThrust Bearing Oil TempRead
AV21TEMP_MTRB1Low Speed ME Brg TempRead
AV22TEMP_MTRB2Low Speed CE Brg TempRead
AV23TEMP_MTRB3High Speed ME Brg TempRead
AV24TEMP_MTRB4High Speed CE Brg TempRead
AV25TEMP_MTRW1Motor Winding 1 TempRead
AV26TEMP_MTRW2Motor Winding 2 TempRead
AV27TEMP_MTRW3Motor Winding 3 TempRead
AV29TEMP_OILT_DISOil Supply TempRead
AV28TEMP_OILT_SMPOil Sump TempRead

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. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the AquaEdge 19XR (PIC 5) 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 Carrier AquaEdge 19XR (PIC 5)

How many BACnet points does the Carrier AquaEdge 19XR (PIC 5) have?

This list has 159 BACnet objects: 116 analog values, 43 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Carrier AquaEdge 19XR (PIC 5) BACnet points are writable?

14 of the 159 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 Carrier AquaEdge 19XR (PIC 5) BACnet documentation?

The source is AquaEdge 19XR Two-Stage High-Efficiency Semi-Hermetic Centrifugal Liquid Chillers with PIC 5 Controls - Controls Operation and Troubleshooting (Appendix D) (19XR-CLT-3T), revision 2016-11, published free by Carrier at https://www.shareddocs.com/hvac/docs/1005/Public/05/19XR-CLT-3T.pdf.

What are the minimum BACnet points to integrate the Carrier AquaEdge 19XR (PIC 5)?

Start with BV 40 GENUNIT_CHIL_S_S_wr (Network start/stop command); BV 42 GENUNIT_CHIL_OCC_wr (Network occupied command); BV 41 GENUNIT_EMSTOP_wr (Emergency stop command); AV 114 GENUNIT_CTRL_PNT_wr (Control point command); AV 115 GENUNIT_DEM_LIM_wr (Demand limit command); AV 1 GENUNIT_ctl_mode (Control mode: Local, Network, Remote, Local Sched); AV 7 GENUNIT_ch_state (Chiller status code); AV 9 TEMP_LCW (Leaving chilled water temperature); AV 8 TEMP_ECW (Entering chilled water temperature); AV 68 ALARMRST_alarm_1 (Current alarm 1).

How do I enable BMS control of the Carrier AquaEdge 19XR (PIC 5)?

In NETWORK control mode the chiller starts and stops from the CHIL_S_S and CHIL_OCC points written over the network (both must be true). Use EMSTOP or the HMI to shut it down. A STOP OVERRIDE point in GENUNIT, if enabled, prevents starting.

How do I check these points on the real AquaEdge 19XR (PIC 5)?

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 Carrier BACnet points lists

Source: AquaEdge 19XR Two-Stage High-Efficiency Semi-Hermetic Centrifugal Liquid Chillers with PIC 5 Controls - Controls Operation and Troubleshooting (Appendix D) · 19XR-CLT-3T · rev. 2016-11. Object names, instances and units are reproduced as published; descriptions are our own.