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Air-cooled screw chiller (via BACnet translator) · BACnet points list
Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator) BACnet points list
Updated 28 October 2026
On the 30XA with Touch Pilot controls, BACnet MS/TP comes from Carrier's BACnet/Modbus translator, which maps a fixed set of CCN points to BACnet objects AV_000 onward, BV_000 onward and two time schedules. The list is short (72 objects): control type, start/stop and occupancy commands, setpoints, capacity, current, demand limit and per-circuit refrigerant temperatures and pressures.
This page lists 72 BACnet objects for the Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator) — 19 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
- AquaForce 30XA 140-352 (BACnet/Modbus Translator)
- Equipment
- Air-cooled screw chiller (via BACnet translator)
- Equipment type
- Chillers
- BACnet objects
- 72 (19 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Also known as
- 30XA, AquaForce 30XA, 30XA-100T, Touch Pilot, BACnet/Modbus translator
BMS integration notes: Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator)
Put the chiller in Network (CCN) control from the Start/Stop machine-mode selection with the Enable/Off/Remote switch closed, then command BV 0 start/stop and BV 1 occupancy through the translator. Read control type, capacity, leaving/entering fluid temperatures, and write setpoints AV 50 onward and demand limit AV 10.
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.
| Object | Name | Why | Access |
|---|---|---|---|
| BV 0 | CHIL_S_S | Network start/stop command | Write |
| BV 1 | CHIL_OCC | Network occupied command | Write |
| BV 3 | EMSTOP | Emergency stop | Write |
| AV 50 | csp1 | Cooling setpoint 1 | Write |
| AV 10 | DEM_LIM | Active demand limit (writable) | Write |
| AV 0 | CTRL_TYP | Control type: Local, Network or Remote | Read |
| AV 4 | CAP_T | Percent total capacity | Read |
| AV 12 | COOL_LWT | Cooler leaving fluid temperature | Read |
| AV 11 | COOL_EWT | Cooler entering fluid temperature | Read |
Enable & remote start
Select Network under Select Machine Mode (Start/Stop button). The control type reads CCN when the Enable/Off/Remote contact input is closed; the network then drives CHIL_S_S. For dual-chiller setups the slave must use CCN control.
Heartbeat & communication loss
The manual says that on loss of communication with the network, the machine starts and is controlled locally.
Network setup
- Appendix D lists the BACnet MS/TP objects of the Carrier BACnet/Modbus translator; the Touch Pilot BACnet parameters table is marked 'Not Supported' in this manual.
- The translator only exposes the 72 points in its fixed map.
Watch out for
- In Local Off (Start/Stop button off) network commands are ignored.
- Plan chilled-water plant behaviour for comm loss: the unit reverts to local control and may start.
Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator) 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.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AVmin | 0 | CTRL_TYP | Control type | Read | 0=Local, 1=Network, 2=Remote | |
| BVmin | 0 | CHIL_S_S | Net.: Cmd Start/Stop | Write | ||
| BVmin | 1 | CHIL_OCC | Net.: Cmd Occupied | Write | ||
| AV | 1 | min_left | Minutes Left for Start | Read | ||
| AV | 2 | HC_SEL | Heat/Cool Select | Read | ||
| AV | 3 | SP_SEL | Setpoint Select | Write | ||
| BV | 2 | SP_OCC | Setpoint Occupied? | Write | ||
| AVmin | 4 | CAP_T | Percent Total Capacity | Read | ||
| AV | 5 | SP | Current Setpoint | Read | ||
| AV | 6 | CTRL_PNT | Control Point | Write | ||
| AV | 7 | TOT_CURR | Actual Chiller Current | Read | ||
| AV | 8 | POW_LIM | Chiller Power Limit | Read | ||
| AV | 9 | COOL_POW | Cool. Power (kit hydro) | Read | ||
| BVmin | 3 | EMSTOP | Emergency Stop | Write | ||
| AVmin | 10 | DEM_LIM | Active Demand Limit Val | Write | ||
| AVmin | 11 | COOL_EWT | Cooler Entering Fluid | Read | ||
| AVmin | 12 | COOL_LWT | Cooler Leaving Fluid | Read | ||
| AV | 13 | OAT | Outdoor Air Temperature | Read | ||
| AV | 14 | SCT_A | Saturated Cond Tmp cir A | Read | ||
| AV | 15 | SST_A | Saturated Suction Temp A | Read | ||
| AV | 16 | SLT_A | Saturated Liquid Temp A | Read | ||
| AV | 17 | SUCT_A | Compressor Suction Tmp A | Read | ||
| AV | 18 | DGT_A | Discharge Gas Temp cir A | Read | ||
| AV | 19 | CP_TMP_A | Motor Temperature cir A | Read | ||
| AV | 20 | ECO_T_A | EXV Eco. Tmp cir A | Read | ||
| AV | 21 | LIQ_T_A | Liquid Temperature A | Read | ||
| AV | 22 | SCT_B | Saturated Cond Tmp cir B | Read | ||
| AV | 23 | SST_B | Saturated Suction Temp B | Read | ||
| AV | 24 | SLT_B | Saturated Liquid Temp B | Read | ||
| AV | 25 | SUCT_B | Compressor Suction Tmp B | Read | ||
| AV | 26 | DGT_B | Discharge Gas Temp cir B | Read | ||
| AV | 27 | CP_TMP_B | Motor Temperature cir B | Read | ||
| AV | 28 | ECO_T_B | EXV Eco. Tmp cir B | Read | ||
| AV | 29 | LIQ_T_B | Liquid Temperature B | Read | ||
| AV | 30 | SPACETMP | Optional Space Temp | Read | ||
| AV | 31 | CHWSTEMP | CHWS Temperature | Read | ||
| AV | 32 | T_HEATER | Cooler Heater Temp | Read | ||
| AV | 33 | DP_A | Discharge Pressure A | Read | ||
| AV | 34 | SP_A | Main Suction Pressure A | Read | ||
| AV | 35 | OP_A | Oil Pressure A | Read | ||
| AV | 36 | DOP_A | Oil Pressure DifferenceA | Read | ||
| AV | 37 | ECO_P_A | Economizer Pressure A | Read | ||
| AV | 38 | LIQ_P_A | Liquid Pressure A | Read | ||
| AV | 39 | DP_B | Discharge Pressure B | Read | ||
| AV | 40 | SP_B | Main Suction Pressure B | Read | ||
| AV | 41 | OP_B | Oil Pressure B | Read | ||
| AV | 42 | DOP_B | Oil Pressure DifferenceB | Read | ||
| AV | 43 | ECO_P_B | Economizer Pressure B | Read | ||
| AV | 44 | LIQ_P_B | Liquid Pressure B | Read | ||
| AV | 45 | EWATPRES | Entering water pressure | Read | ||
| AV | 46 | LWATPRES | Leaving water pressure | Read | ||
| AV | 47 | WATPRES3 | Water pressure 3 | Read | ||
| AV | 48 | WATPRES4 | Water pressure 4 | Read | ||
| BV | 4 | ONOFF_SW | Remote On/Off Switch | Read | ||
| BV | 5 | SETP_SW | Remote Setpoint Switch | Read | ||
| BV | 6 | LIM_SW1 | Limit Switch 1 | Read | ||
| BV | 7 | LIM_SW2 | Limit Switch 2 | Read | ||
| BV | 8 | OIL_L_A | Oil Level Input A | Read | ||
| BV | 9 | OIL_L_B | Oil Level Input B | Read | ||
| AV | 49 | SP_RESET | Reset/Setpnt4-20mA Sgnl | Read | ||
| AVmin | 50 | csp1 | Cooling Setpoint 1 | Write | ||
| AV | 51 | csp2 | Cooling Setpoint 2 | Write | ||
| AV | 52 | ice_sp | Cooling Ice Setpoint | Write | ||
| AV | 53 | cramp_sp | Cooling Ramp Loading | Write | ||
| AV | 54 | hsp1 | Heating Setpoint 1 | Write | ||
| AV | 55 | hsp2 | Heating Setpoint 2 | Write | ||
| AV | 56 | hramp_sp | Heating Ramp Loading | Write | ||
| AV | 57 | cauto_sp | Cool Changeover Setpt | Write | ||
| AV | 58 | hauto_sp | Heat Changeover Setpt | Write | ||
| AV | 59 | vpmpdtsp | Varipump Delta Temp Stp | Write | ||
| SCH | 0 | OCC1P01S | Time Schedule 1 | Write | ||
| SCH | 1 | OCC2P02S | Time Schedule 2 | Write |
No points match these filters.
Integration notes
- Object instances come from the translator column (AV_000 = AV 0, BV_000 = BV 0, TS_000 = schedule 0).
- Object names here are the CCN point names the translator maps; the live object names may differ.
- The same appendix lists Modbus registers 0x4000 onward for the same points.
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 AquaForce 30XA 140-352 (BACnet/Modbus Translator) 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 AquaForce 30XA 140-352 (BACnet/Modbus Translator)
How many BACnet points does the Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator) have?
This list has 72 BACnet objects: 60 analog values, 10 binary values, 2 schedules. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator) BACnet points are writable?
19 of the 72 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 AquaForce 30XA 140-352 (BACnet/Modbus Translator) BACnet documentation?
The source is AquaForce 30XA140-352 Air-Cooled Liquid Chillers - Controls, Start-Up, Operation, Service and Troubleshooting (Appendix D, BACnet/Modbus Translator Points) (30XA-100T), revision 2015-04, published free by Carrier at https://www.shareddocs.com/hvac/docs/1005/Public/0C/30XA-100T.pdf.
What are the minimum BACnet points to integrate the Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator)?
Start with BV 0 CHIL_S_S (Network start/stop command); BV 1 CHIL_OCC (Network occupied command); BV 3 EMSTOP (Emergency stop); AV 50 csp1 (Cooling setpoint 1); AV 10 DEM_LIM (Active demand limit (writable)); AV 0 CTRL_TYP (Control type: Local, Network or Remote); AV 4 CAP_T (Percent total capacity); AV 12 COOL_LWT (Cooler leaving fluid temperature); AV 11 COOL_EWT (Cooler entering fluid temperature).
How do I enable BMS control of the Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator)?
Select Network under Select Machine Mode (Start/Stop button). The control type reads CCN when the Enable/Off/Remote contact input is closed; the network then drives CHIL_S_S. For dual-chiller setups the slave must use CCN control.
Does the Carrier AquaForce 30XA 140-352 (BACnet/Modbus Translator) need a BACnet heartbeat or have a communication timeout?
The manual says that on loss of communication with the network, the machine starts and is controlled locally.
How do I check these points on the real AquaForce 30XA 140-352 (BACnet/Modbus Translator)?
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
- Water-cooled screw chiller controller (BACnet option)
Carrier 30HXA / 30HXC 076-271 Series 9 (UPC Open BACnet option)
Carrier 30HXA condenserless and 30HXC water-cooled screw chillers, sizes 076-271, Series 9 with ComfortLink controls and the BACnet communication option.
Also known as: 30HX, 30HXA, 30HXC, 30HX-2T, UPC Open, ComfortLink, screw chiller - Applied rooftop unit controller
Carrier 48/50K and 48/50V Rooftop (SmartVu PIC 6.1)
Carrier 48/50K and 48/50V applied rooftop units (gas heat or electric heat, R-454B) with SmartVu controls on PIC 6.1 hardware.
Also known as: SmartVu, PIC 6.1, PIC6.1, 48K, 50K, 48V, 50V, 48/50K, 48/50V, Carrier applied rooftop, 48-50-ART-SVU-1T - Water-cooled centrifugal chiller controller
Carrier AquaEdge 19DV (PIC6)
Carrier AquaEdge 19DV two-stage centrifugal chillers with the PIC6 controller.
Also known as: 19DV, AquaEdge 19DV, PIC6, 19DV-CLT-3T, centrifugal chiller - Water-cooled centrifugal chiller controller
Carrier AquaEdge 19MV (PIC6)
Carrier AquaEdge 19MV two-stage semi-hermetic centrifugal chillers with Greenspeed Intelligence (magnetic bearings) and PIC6 controls.
Also known as: 19MV, AquaEdge 19MV, 19MV-CLT-3T, PIC6, magnetic bearing centrifugal chiller - Water-cooled centrifugal chiller controller
Carrier AquaEdge 19XR (PIC 5)
Carrier AquaEdge 19XR two-stage semi-hermetic centrifugal chillers with PIC 5 controls.
Also known as: 19XR, AquaEdge 19XR, PIC 5, PIC5, 19XR-CLT-3T, centrifugal chiller - Water-cooled screw chiller controller
Carrier AquaEdge 23XRV (PIC6)
Carrier AquaEdge 23XRV variable-speed water-cooled screw chillers with the PIC6 touchscreen controller.
Also known as: 23XRV, AquaEdge 23XRV, PIC6, 23XRV-3T, variable speed screw chiller - Air-cooled screw chiller controller (BACnet option)
Carrier AquaForce 30XA 080-501 (UPC Open BACnet option)
Carrier AquaForce 30XA080-501 air-cooled screw chillers with the BACnet communication option (UPC Open controller).
Also known as: 30XA, AquaForce 30XA, 30XA-7T, UPC Open, Carrier Controller, screw chiller - Air-cooled screw chiller controller
Carrier AquaForce 30XV 140-500 Series B (PIC6.1 Carrier Controller)
Carrier AquaForce 30XV140-500 Series B variable-speed air-cooled screw chillers with the PIC6.1 Carrier Controller and version 9.x software.
Also known as: 30XV, AquaForce 30XV, 30XV Series B, 30XV-6T, PIC6.1, Carrier Controller, Greenspeed - Scroll chiller / heat pump controller
Carrier AquaSnap 30MP (PIC6 Carrier Controller)
Carrier AquaSnap 30MPW017-080 water-cooled, 30MPA021-080 condenserless and 30MPQ021-080 heat pump chillers with scroll compressors and PIC6 (Carrier Controller).
Also known as: 30MPW, 30MPA, 30MPQ, 30MP, AquaSnap 30MP, 30MP-8T, Carrier Controller - Air-cooled scroll chiller controller (BACnet option)
Carrier AquaSnap 30RAP 010-150 (UPC Open BACnet option)
Carrier AquaSnap 30RAP010-150 air-cooled chillers and 30RAP011-060 with Greenspeed Intelligence (R-410A, ComfortLink controls) fitted with the BACnet communication option.
Also known as: 30RAP, AquaSnap 30RAP, 30RAP-8T, 30RAP Greenspeed, UPC Open, ComfortLink - Air-cooled scroll chiller controller (BACnet option)
Carrier AquaSnap 30RB 060-390 (UPC Open BACnet option)
Carrier AquaSnap 30RB060-390 air-cooled chillers and 30RB080-390 with Greenspeed Intelligence (ComfortLink controls) fitted with the BACnet communication option.
Also known as: 30RB, AquaSnap 30RB, 30RB-8T, 30RB Greenspeed, UPC Open, ComfortLink - Air-cooled scroll chiller controller
Carrier AquaSnap 30RC 010-060
Carrier AquaSnap 30RC 010-060 air-cooled scroll chillers (with or without Greenspeed fans) using the Carrier Controller.
Also known as: 30RC, AquaSnap 30RC, 30RC-101T, Carrier Controller, 30RC BACnet IP - Networked room thermostat
Carrier ComfortVu BACnet Thermostat
Carrier ComfortVu wall thermostats controlling fan coils or AC/heat pump units.
Also known as: ComfortVu, Carrier ComfortVu, 11-808-726-01 - Fan coil unit controller
Carrier Fan Coil Open
Carrier fan coil units fitted with the Fan Coil Open (OPN-FC) multi-protocol controller.
Also known as: Fan Coil Open, OPN-FC, Carrier Fan Coil controller, 11-808-540-01 - Rooftop unit controller
Carrier RTU Open v5
Carrier packaged rooftop units and heat pumps retrofitted or factory-fitted with the RTU Open controller.
Also known as: RTU Open, OPN-RTU, RTU-Open, 11-808-697-01 - Water-source heat pump controller
Carrier WSHP Open v3
Carrier water-source heat pumps fitted with the WSHP Open multi-protocol controller.
Also known as: WSHP Open, WSHP-Open, Carrier water source heat pump controller, 11-808-539-01
Source: AquaForce 30XA140-352 Air-Cooled Liquid Chillers - Controls, Start-Up, Operation, Service and Troubleshooting (Appendix D, BACnet/Modbus Translator Points) · 30XA-100T · rev. 2015-04. Object names, instances and units are reproduced as published; descriptions are our own.