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Water-cooled screw chiller controller · BACnet points list
Trane Symbio 800 RTWD (CH530) BACnet points list
Updated 28 October 2026
A two-page Symbio 800 list for RTWD chillers marked CH530 that contains analog inputs only: 47 AIs with small instance numbers. They cover active setpoint and current limit, evaporator and condenser water temperatures, refrigerant and oil pressures, compressor starts and run times, line voltages and currents. No command, setpoint or binary status objects are listed.
This page lists 47 BACnet objects for the Trane Symbio 800 RTWD (CH530) — 0 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Trane’s own free documentation, linked below.
- Manufacturer
- Trane
- Model
- Symbio 800 RTWD (CH530)
- Equipment
- Water-cooled screw chiller controller
- Equipment type
- Chillers
- BACnet objects
- 47 (0 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Not stated
- Also known as
- RTWD, Series R RTWD, RTWD CH530, CH530, BAS-PTS035
BMS integration notes: Trane Symbio 800 RTWD (CH530)
This list has only analog inputs, so the BMS can monitor the chiller but has no start/stop, setpoint or alarm object here. Map the active setpoint, entering and leaving water temperatures and running capacity. For control or alarms, check whether the controller on site matches another Trane RTWD list.
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 |
|---|---|---|---|
| AI 1 | Active Cool/Heat Setpoint Temperature | Chilled or hot water setpoint in use | Read |
| AI 2 | Active Current Limit Setpoint | Current limit in use, % | Read |
| AI 44 | Evaporator Entering Water Temp | Entering (return) chilled water temperature | Read |
| AI 45 | Evaporator Leaving Water Temp | Leaving chilled water temperature | Read |
| AI 5 | Actual Running Capacity | Actual running capacity in percent | Read |
Network setup
- With no protocol specified at order, the controller ships as BACnet MS/TP at 76,800 bps with the rotary address at 000, and MS/TP is disabled at 000. Set a rotary address of 001-127 to bring it online.
- The rotary address sets the MS/TP MAC and the Device ID and takes effect without a power cycle. A software Device ID (1-4194302) can be set in the web UI, Tracer SC+ or Tracer TU.
- The web UI is reached only over USB at http://198.80.18.1/; the Ethernet ports do not serve it.
- BACnet IP uses Ethernet port 1 (or the optional USB Wi-Fi adapter); the default UDP port is 47808. Enable BBMD only if this is the only BACnet IP device on the subnet, then fill in the BDT.
- MS/TP wiring lands on the P1 link; P2 and P3 are for factory devices only, and Ethernet port 2 is only for the touch-screen display.
Watch out for
- Communicated units (I-P or SI) are fixed at the factory; changing them in the field needs a Trane representative. Web UI display units do not change the BACnet values.
- Points that don't apply to the unit's configuration are absent, and a technician can 'recycle' (remove) factory points from the interface, so a missing object may have been recycled.
- There is no binary status or alarm object in this list; running state and alarms can't be read from it.
Trane Symbio 800 RTWD (CH530) 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.
Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AImin | 1 | Active Cool/Heat Setpoint Temperature | Active chiller water or hot water setpoint | Temperature | Read | |
| AImin | 2 | Active Current Limit Setpoint | Active capacity current limit setpoint | Percent | Read | |
| AImin | 5 | Actual Running Capacity | Level of capacity that the chiller is currently running at | Percent | Read | |
| AI | 7 | Suction Pressure- Ckt 1 | Circuit 1 suction pressure | Pressure | Read | |
| AI | 10 | Suction Pressure- Ckt 2 | Circuit 2 suction pressure | Pressure | Read | |
| AI | 12 | Evaporator Saturated Refrigerant Temperature- Ckt 1 | Circuit 2 evaporator refrigerant temperature | Temperature | Read | |
| AI | 14 | Evaporator Saturated Refrigerant Temperature- Ckt 2 | Circuit 2 evaporator refrigerant temperature | Temperature | Read | |
| AI | 16 | Condenser Refrigerant Pressure- Ckt 1 | Circuit 1 condenser refrigerant pressure | Pressure | Read | |
| AI | 18 | Condenser Refrigerant Pressure- Ckt 2 | Circuit 2 condenser refrigerant pressure | Pressure | Read | |
| AI | 20 | Condenser Saturated Refrigerant Temperature- Ckt 1 | Circuit 1 condenser refrigerant temperature | Temperature | Read | |
| AI | 22 | Condenser Saturated Refrigerant Temperature- Ckt 2 | Circuit 2 condenser refrigerant temperature | Temperature | Read | |
| AI | 24 | Unit Power Consumption | The power being consumed by the chiller | Power | Read | |
| AI | 25 | Local Atmospheric Pressure | Pressure | Read | ||
| AI | 26 | Starts- Compressor 1A | Number of starts for compressor 1A | Read | ||
| AI | 28 | Starts- Compressor 2A | Number of starts for compressor 2A | Read | ||
| AI | 34 | Run Time- Compressor 1A | Total run time of compressor 1A | Time | Read | |
| AI | 36 | Run Time- Compressor 2A | Total run time of compressor 2A | Time | Read | |
| AImin | 44 | Evaporator Entering Water Temp | Temperature of the water entering the evaporator | Temperature | Read | |
| AImin | 45 | Evaporator Leaving Water Temp | Temperature of the water leaving the evaporator | Temperature | Read | |
| AI | 46 | Condenser Entering Water Temp | Temperature of the water entering the condenser | Temperature | Read | |
| AI | 47 | Condenser Leaving Water Temp | Temperature of the water leaving the condenser | Temperature | Read | |
| AI | 48 | High Side Oil Pressure- Compressor 1A | Pressure of the oil at the high side of compressor 1A | Pressure | Read | |
| AI | 50 | High Side Oil Pressure- Compressor 2A | Pressure of the oil at the high side of compressor 2A | Pressure | Read | |
| AI | 57 | Outdoor Air Temperature | Temperature | Read | ||
| AI | 58 | Condenser Control Output | Percentage of condenser water flow being requested by the chiller | Percent | Read | |
| AI | 59 | Phase AB Voltage- Compressor 1A | Phase AB voltage, compressor 1A | Voltage | Read | |
| AI | 60 | Phase BC Voltage- Compressor 1A | Phase BC voltage, compressor 1A | Voltage | Read | |
| AI | 61 | Phase CA Voltage- Compressor 1A | Phase CA voltage, compressor 1A | Voltage | Read | |
| AI | 65 | Phase AB Voltage- Compressor 2A | Phase AB voltage, compressor 2A | Voltage | Read | |
| AI | 66 | Phase BC Voltage- Compressor 2A | Phase BC voltage, compressor 2A | Voltage | Read | |
| AI | 67 | Phase CA Voltage- Compressor 2A | Phase CA voltage, compressor 2A | Voltage | Read | |
| AI | 71 | Line 1 Current (in Amps)- Compressor 1A | Current | Read | ||
| AI | 72 | Line 2 Current (in Amps)- Compressor 1A | Current | Read | ||
| AI | 73 | Line 3 Current (in Amps)- Compressor 1A | Current | Read | ||
| AI | 77 | Line 1 Current (in Amps)- Compressor 2A | Current | Read | ||
| AI | 78 | Line 2 Current (in Amps)- Compressor 2A | Current | Read | ||
| AI | 79 | Line 3 Current (in Amps)- Compressor 2A | Current | Read | ||
| AI | 83 | Line 1 Current (%RLA)- Compressor 1A | Percent | Read | ||
| AI | 84 | Line 2 Current (%RLA)- Compressor 1A | Percent | Read | ||
| AI | 85 | Line 3 Current (%RLA)- Compressor 1A | Percent | Read | ||
| AI | 89 | Line 1 Current (%RLA)- Compressor 2A | Percent | Read | ||
| AI | 90 | Line 2 Current (%RLA)- Compressor 2A | Percent | Read | ||
| AI | 91 | Line 3 Current (%RLA)- Compressor 2A | Percent | Read | ||
| AI | 95 | Number of Circuits | Read | |||
| AI | 96 | Number of Compressors, Ckt 1 | Read | |||
| AI | 97 | Number of Compressors, Ckt 2 | Read | |||
| AI | 98 | Chiller Design Capacity | Design Capacity of the Chiller | Read |
No points match these filters.
Integration notes
- Only the points that apply to the unit's factory configuration show up; the doc lists every possible point.
- All objects in this list are analog inputs and read-only.
- Units are listed as a quantity (Temperature, Pressure, Percent...); the actual engineering unit is the factory-configured I-P or SI set.
- The Symbio 800 integration guide (BAS-SVP083) covers BACnet IP and BACnet MS/TP; the rotary address sets the MS/TP MAC and a default Device ID of 1-127, and a software Device ID can be set instead.
- Trane titles this list 'RTWD (CH530)' and does not explain the suffix in the document. Its objects use short instance numbers (AI 1, BI 4...) instead of the 5-digit numbering in the standard Symbio 800 RTWD list (BAS-PTS017), so check which list matches the controller on site.
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 Symbio 800 RTWD (CH530) 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 Trane Symbio 800 RTWD (CH530)
How many BACnet points does the Trane Symbio 800 RTWD (CH530) have?
This list has 47 BACnet objects: 47 analog inputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Trane Symbio 800 RTWD (CH530) BACnet points are writable?
None of the listed objects are marked writable in the source documentation. The source has no read/write column, so this is inferred from object type.
Where is the official Trane Symbio 800 RTWD (CH530) BACnet documentation?
The source is Symbio 800 Integration Points List BACnet - RTWD (CH530) (BAS-PTS035A-EN), revision 12/6/2024, published free by Trane at https://elibrary.tranetechnologies.com/public/commercial-hvac/Literature/Points%20List/BAS-PTS035A-EN_12062024.pdf.
What are the minimum BACnet points to integrate the Trane Symbio 800 RTWD (CH530)?
Start with AI 1 Active Cool/Heat Setpoint Temperature (Chilled or hot water setpoint in use); AI 2 Active Current Limit Setpoint (Current limit in use, %); AI 44 Evaporator Entering Water Temp (Entering (return) chilled water temperature); AI 45 Evaporator Leaving Water Temp (Leaving chilled water temperature); AI 5 Actual Running Capacity (Actual running capacity in percent).
How do I check these points on the real Symbio 800 RTWD (CH530)?
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 Trane BACnet points lists
- Rooftop unit communication interface (ReliaTel)
Trane BCI2-R (ReliaTel)
Trane packaged rooftop units with ReliaTel controls (Voyager, Precedent, Odyssey) fitted with the BCI2-R BACnet card.
Also known as: BCI2-R, BCI2R, ReliaTel BACnet interface, BACnet Communication Interface for ReliaTel, BAS-SVP053, Voyager, Precedent, Odyssey - Water-source heat pump controller
Trane Symbio 400-B/500 Water-Source Heat Pump
Trane water-source heat pumps controlled by a Symbio 400-B or Symbio 500 programmable controller.
Also known as: Symbio 400-B, Symbio 400B, Symbio 500, Symbio WSHP, BAS-SVP061B-EN - Self-contained unit controller
Trane Symbio 500 Commercial Self-Contained (SWUD)
Trane commercial self-contained (SWUD) units controlled by a Symbio 500.
Also known as: Symbio 500, SWUD, Commercial Self-Contained, CSC, BAS-PTS038 - Self-contained unit controller
Trane Symbio 500 Modular Self-Contained (SCWM)
Trane modular self-contained (SCWM) units controlled by a Symbio 500.
Also known as: Symbio 500, SCWM, Modular Self-Contained, BAS-PTS037 - Split system controller
Trane Symbio 700 Odyssey
Trane Odyssey split systems controlled by a Symbio 700.
Also known as: Symbio 700, Odyssey split system, BAS-PTS005 - Rooftop unit controller
Trane Symbio 700 Precedent / Axiom
Trane Precedent packaged rooftop units and Axiom rooftop water-source heat pumps with the Symbio 700 controller.
Also known as: Symbio 700, Symbio700, Precedent rooftop, Axiom rooftop WSHP, BAS-PTS001 - Air-cooled chiller controller
Trane Symbio 800 ACRB Small (UC800)
Trane ACRB Small air-cooled chillers whose Symbio 800 points list Trane tags '(UC800)'.
Also known as: ACRB, ACRB Small, ACRB UC800, Symbio 800 ACRB, BAS-PTS025 - Air-cooled chiller controller
Trane Symbio 800 ACSA (UC800)
Trane ACSA air-cooled chillers whose Symbio 800 points list Trane tags '(UC800)'.
Also known as: ACSA, ACSA UC800, Symbio 800 ACSA, BAS-PTS026 - Water-cooled centrifugal chiller controller
Trane Symbio 800 Agility (HDWA / HDDA)
Trane Agility water-cooled centrifugal chillers (model HDWA and HDDA per the model information point) with Symbio 800 controls.
Also known as: Agility, HDWA, HDDA, Agility water-cooled chiller, Symbio 800 Agility, BAS-PTS007 - Air-cooled chiller controller
Trane Symbio 800 Ascend ACR Series C
Trane Ascend model ACR Series C air-cooled chillers with Symbio 800 controls.
Also known as: Ascend ACR, ACR Series C, Ascend air-cooled chiller, Symbio 800 Ascend ACR, BAS-PTS021 - Air-cooled chiller controller
Trane Symbio 800 Ascend ACS / ACX
Trane Ascend model ACS and ACX air-cooled scroll chillers with Symbio 800 controls.
Also known as: Ascend ACS, Ascend ACX, Ascend air-cooled chiller, Symbio 800 Ascend, BAS-PTS011 - Centrifugal chiller controller
Trane Symbio 800 CenTraVac (Duplex)
Two-compressor (duplex) Trane CenTraVac water-cooled centrifugal chillers with Symbio 800 controls.
Also known as: CenTraVac Duplex, CDHH, CDHF, Symbio 800 CenTraVac, BAS-PTS009 - Centrifugal chiller controller
Trane Symbio 800 CenTraVac (Simplex)
Single-compressor (simplex) Trane CenTraVac water-cooled centrifugal chillers with Symbio 800 controls.
Also known as: CenTraVac, CVHE, CVHF, CVHH, Symbio 800 CenTraVac, BAS-PTS009 - Centrifugal chiller controller
Trane Symbio 800 CenTraVac Simplex (UC800)
Trane CenTraVac (CTV) simplex centrifugal chillers whose Symbio 800 points list Trane tags '(UC800)'.
Also known as: CenTraVac, CTV, CTV-Simplex, CenTraVac UC800, Symbio 800 CenTraVac, BAS-PTS029 - Air-cooled scroll chiller controller
Trane Symbio 800 CGAM
Trane CGAM air-cooled scroll chillers with Symbio 800 controls.
Also known as: CGAM, CGAM air-cooled chiller, Symbio 800 CGAM, BAS-PTS019 - Air-cooled scroll chiller controller
Trane Symbio 800 CGAM (CH530)
Trane CGAM air-cooled scroll chillers whose Symbio 800 points list Trane tags '(CH530)'.
Also known as: CGAM, CGAM CH530, CH530 CGAM, Symbio 800 CGAM, BAS-PTS027 - Water-cooled centrifugal chiller controller
Trane Symbio 800 HDWA (UC800)
Trane HDWA water-cooled chillers whose Symbio 800 points list Trane tags '(UC800)'.
Also known as: HDWA, Agility HDWA, HDWA UC800, Symbio 800 HDWA, BAS-PTS028 - Split system controller
Trane Symbio 800 IntelliCore Split System (RAUK)
Trane IntelliCore split systems (RAUK) controlled by a Symbio 800.
Also known as: IntelliCore, RAUK, IntelliCore split system, Symbio 800, BAS-PTS036 - Rooftop unit / air handler controller
Trane Symbio 800 IntelliPak
Trane IntelliPak large packaged rooftop units running the Symbio 800 controller.
Also known as: Symbio 800, IntelliPak rooftop, IntelliPak with Symbio 800, BAS-PTS003 - Air-cooled screw chiller controller
Trane Symbio 800 RTAC
Trane RTAC air-cooled helical-rotary chillers with Symbio 800 controls.
Also known as: RTAC, Series R RTAC, RTAC air-cooled chiller, BAS-PTS023 - Air-cooled screw chiller controller
Trane Symbio 800 RTAC (CH530)
Trane RTAC air-cooled helical-rotary chillers covered by Trane's 'RTAC (CH530)' Symbio 800 points list.
Also known as: RTAC, Series R RTAC, RTAC CH530, CH530, BAS-PTS031 - Air-cooled screw chiller controller
Trane Symbio 800 RTAC (UC800)
Trane RTAC air-cooled helical-rotary chillers covered by Trane's 'RTAC (UC800)' Symbio 800 points list.
Also known as: RTAC, Series R RTAC, RTAC UC800, UC800, BAS-PTS032 - Water-cooled screw chiller controller
Trane Symbio 800 RTHD (CH530)
Trane RTHD water-cooled helical-rotary chillers covered by Trane's 'RTHD (CH530)' Symbio 800 points list.
Also known as: RTHD, Series R RTHD, RTHD CH530, CH530, BAS-PTS033 - Water-cooled screw chiller controller
Trane Symbio 800 RTHD (UC800)
Trane RTHD water-cooled helical-rotary chillers covered by Trane's 'RTHD (UC800)' Symbio 800 points list.
Also known as: RTHD, Series R RTHD, RTHD UC800, UC800, BAS-PTS034 - Water-cooled screw chiller controller
Trane Symbio 800 Series R RTHD
Trane Series R model RTHD water-cooled helical-rotary chillers with Symbio 800 controls.
Also known as: RTHD, Series R RTHD, RTHD water-cooled chiller, Symbio 800 RTHD, BAS-PTS015 - Water-cooled screw chiller controller
Trane Symbio 800 Series R RTWD
Trane Series R model RTWD water-cooled helical-rotary chillers with Symbio 800 controls.
Also known as: RTWD, Series R RTWD, Series R water-cooled chiller, BAS-PTS017 - Air-cooled screw chiller controller
Trane Symbio 800 Sintesis RTAF
Trane Sintesis model RTAF air-cooled helical-rotary chillers with Symbio 800 controls.
Also known as: Sintesis RTAF, RTAF, Sintesis air-cooled chiller, Symbio 800 Sintesis, BAS-PTS013
Source: Symbio 800 Integration Points List BACnet - RTWD (CH530) · BAS-PTS035A-EN · rev. 12/6/2024. Object names, instances and units are reproduced as published; descriptions are our own.