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Water-cooled screw chiller BACnet interface · BACnet points list
Trane BCI2-C for RTWD / RTUD chillers (CH530) BACnet points list
Updated 12 November 2026
The BCI2-C is a non-programmable Trane controller that connects to the CH530 chiller controls over the IPC3 link and serves the chiller data on BACnet MS/TP. This list is the RTWD column of the guide's model tables: 102 objects with low instance numbers. The BAS writes chilled and hot water setpoints and current limit (AO), auto/stop and diagnostic reset (BO) and chiller mode (MO); everything else is read-only water, refrigerant, oil, compressor and electrical data.
This page lists 102 BACnet objects for the Trane BCI2-C for RTWD / RTUD chillers (CH530) — 6 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
- BCI2-C for RTWD / RTUD chillers (CH530)
- Equipment
- Water-cooled screw chiller BACnet interface
- Equipment type
- Chillers
- BACnet objects
- 102 (6 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Also known as
- BCI2-C, BCI2C, BACnet Communication Interface for Chillers, RTWD, RTUD, Series R RTWD, RTWD CH530, BAS-SVP055
Reference only, provided as-is: verify against Trane’s current documentation and the live device before use. Not official Trane information. Terms of use.
BMS integration notes: Trane BCI2-C for RTWD / RTUD chillers (CH530)
Address the BCI2-C on the MS/TP trunk and discover it. Write BO 1 auto/stop, MO 1 mode, AO 1 chilled water setpoint and AO 2 current limit, then read back running state, leaving water temperature and capacity. BI 23 Alarm Present and BI 24 Shutdown Alarm Present are the summary alarms, and BI 25 shows the last diagnostic.
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 |
|---|---|---|---|
| BO 1 | Chiller Auto Stop Command | BMS auto/stop (enable) command | Write |
| MO 1 | Chiller Mode Command | Cool/heat/ice mode command | Write |
| AO 1 | Chilled Water Setpoint | Chilled water setpoint from the BMS | Write |
| AO 2 | Current Limit Setpoint | Current (capacity) limit from the BMS, % | Write |
| BI 4 | Chiller Running State | Chiller on/off status | Read |
| BI 2 | Local Setpoint Control | Shows if local setpoints override BAS setpoints | Read |
| AI 45 | Evaporator Leaving Water Temp | Leaving chilled water temperature | Read |
| AI 5 | Actual Running Capacity | Actual running capacity in percent | Read |
| BI 23 | Alarm Present | Any active alarm on the chiller | Read |
Enable & remote start
BO 1 Chiller Auto Stop Command (Inactive = Stop, Active = Auto; relinquish default True, i.e. Auto) is the BMS auto/stop. BI 1 Run Enabled shows whether the chiller is available to run, and BI 2 Local Setpoint Control shows when the chiller is using local setpoints instead of the BAS setpoints.
Network setup
- The BCI2-C is a BACnet MS/TP device only (EIA-485 at 9600, 19200, 38400 or 76,800 bps); the default baud rate is 76,800.
- It has no physical rotary dials: the factory address is on a label on the board and is changed in the embedded BCI2 Service Tool (USB, browser at 198.80.18.1) or Tracer TU. Valid MAC addresses are 001-127.
- The default software Device ID equals the MAC address; tick 'Use Software Device ID' to set another one. A Tracer SC builds its own device ID from the SC address, link number and MAC.
- Communicated units default to SI once the points are created. To switch to I-P, clear the controller with the IPC3 cable unplugged (or the unit powered down) so the Device Units choice unlocks.
- For non-Trane front ends, set Max Master (Max Requestor) above the BCI2-C MAC address or the device will not be discovered.
Watch out for
- The BCI2-C builds its point list from the CH530 controller at first power-up and stores it. If options are added later, clear the controller so it rebuilds the list.
- BO 2 Remote Diagnostic Reset Command: after a write of 1 the BCI2-C sends the reset, sets the point back to 0 and clears the priority array. Some diagnostics still need a local reset.
- With the external (hard-wired) setpoint option, the chiller follows the external setpoints when the CH530 setpoint source is External/Front Panel, when the setpoint AO is set Out of Service, or when a Tracer SC loses communication with the BCI2-C.
- MI 3 MP Communication Status is marked 'Do Not Use This Point' in the document.
Trane BCI2-C for RTWD / RTUD chillers (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 | |||||
|---|---|---|---|---|---|---|
| AI | 1 | Active Cool/Heat Setpoint Temperature | Active chiller water or hot water setpoint | Temperature | Read | |
| AI | 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 1 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 | Local atmospheric pressure | Pressure | Read | |
| AI | 26 | Starts- Compressor 1A | Number of starts for compressor 1A | Read | ||
| AI | 27 | Starts- Compressor 1B | Number of starts for compressor 1B | Read | ||
| AI | 28 | Starts- Compressor 2A | Number of starts for compressor 2A | Read | ||
| AI | 29 | Starts- Compressor 2B | Number of starts for compressor 2B | Read | ||
| AI | 34 | Run Time- Compressor 1A | Total run time of compressor 1A | Time | Read | |
| AI | 35 | Run Time- Compressor 1B | Total run time of compressor 1B | Time | Read | |
| AI | 36 | Run Time- Compressor 2A | Total run time of compressor 2A | Time | Read | |
| AI | 37 | Run Time- Compressor 2B | Total run time of compressor 2B | Time | Read | |
| AI | 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 | 49 | High Side Oil Pressure- Compressor 1B | Pressure of the oil at the high side of compressor 1B | Pressure | Read | |
| AI | 50 | High Side Oil Pressure- Compressor 2A | Pressure of the oil at the high side of compressor 2A | Pressure | Read | |
| AI | 51 | High Side Oil Pressure- Compressor 2B | Pressure of the oil at the high side of compressor 2B | Pressure | Read | |
| AI | 57 | Outdoor Air Temperature | 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 | 62 | Phase AB Voltage- Compressor 1B | Phase AB voltage, compressor 1B | Voltage | Read | |
| AI | 63 | Phase BC Voltage- Compressor 1B | Phase BC voltage, compressor 1B | Voltage | Read | |
| AI | 64 | Phase CA Voltage- Compressor 1B | Phase CA voltage, compressor 1B | 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 | 68 | Phase AB Voltage- Compressor 2B | Phase AB voltage, compressor 2B | Voltage | Read | |
| AI | 69 | Phase BC Voltage- Compressor 2B | Phase BC voltage, compressor 2B | Voltage | Read | |
| AI | 70 | Phase CA Voltage- Compressor 2B | Phase CA voltage, compressor 2B | Voltage | Read | |
| AI | 71 | Line 1 Current (in Amps)- Compressor 1A | Line 1 Current (in Amps)- Compressor 1A | Current | Read | |
| AI | 72 | Line 2 Current (in Amps)- Compressor 1A | Line 2 Current (in Amps)- Compressor 1A | Current | Read | |
| AI | 73 | Line 3 Current (in Amps)- Compressor 1A | Line 3 Current (in Amps)- Compressor 1A | Current | Read | |
| AI | 74 | Line 1 Current (in Amps)- Compressor 1B | Line 1 Current (in Amps)- Compressor 1B | Current | Read | |
| AI | 75 | Line 2 Current (in Amps)- Compressor 1B | Line 2 Current (in Amps)- Compressor 1B | Current | Read | |
| AI | 76 | Line 3 Current (in Amps)- Compressor 1B | Line 3 Current (in Amps)- Compressor 1B | Current | Read | |
| AI | 77 | Line 1 Current (in Amps)- Compressor 2A | Line 1 Current (in Amps)- Compressor 2A | Current | Read | |
| AI | 78 | Line 2 Current (in Amps)- Compressor 2A | Line 2 Current (in Amps)- Compressor 2A | Current | Read | |
| AI | 79 | Line 3 Current (in Amps)- Compressor 2A | Line 3 Current (in Amps)- Compressor 2A | Current | Read | |
| AI | 80 | Line 1 Current (in Amps)- Compressor 2B | Line 1 Current (in Amps)- Compressor 2B | Current | Read | |
| AI | 81 | Line 2 Current (in Amps)- Compressor 2B | Line 2 Current (in Amps)- Compressor 2B | Current | Read | |
| AI | 82 | Line 3 Current (in Amps)- Compressor 2B | Line 3 Current (in Amps)- Compressor 2B | Current | Read | |
| AI | 83 | Line 1 Current (%RLA)- Compressor 1A | Line 1 Current (%RLA)- Compressor 1A | Percent | Read | |
| AI | 84 | Line 2 Current (%RLA)- Compressor 1A | Line 2 Current (%RLA)- Compressor 1A | Percent | Read | |
| AI | 85 | Line 3 Current (%RLA)- Compressor 1A | Line 3 Current (%RLA)- Compressor 1A | Percent | Read | |
| AI | 86 | Line 1 Current (%RLA)- Compressor 1B | Line 1 Current (%RLA)- Compressor 1B | Percent | Read | |
| AI | 87 | Line 2 Current (%RLA)- Compressor 1B | Line 2 Current (%RLA)- Compressor 1B | Percent | Read | |
| AI | 88 | Line 3 Current (%RLA)- Compressor 1B | Line 3 Current (%RLA)- Compressor 1B | Percent | Read | |
| AI | 89 | Line 1 Current (%RLA)- Compressor 2A | Line 1 Current (%RLA)- Compressor 2A | Percent | Read | |
| AI | 90 | Line 2 Current (%RLA)- Compressor 2A | Line 2 Current (%RLA)- Compressor 2A | Percent | Read | |
| AI | 91 | Line 3 Current (%RLA)- Compressor 2A | Line 3 Current (%RLA)- Compressor 2A | Percent | Read | |
| AI | 92 | Line 1 Current (%RLA)- Compressor 2B | Line 1 Current (%RLA)- Compressor 2B | Percent | Read | |
| AI | 93 | Line 2 Current (%RLA)- Compressor 2B | Line 2 Current (%RLA)- Compressor 2B | Percent | Read | |
| AI | 94 | Line 3 Current (%RLA)- Compressor 2B | Line 3 Current (%RLA)- Compressor 2B | Percent | Read | |
| AI | 95 | Number of Circuits | Number of Circuits | None | Read | |
| AI | 96 | Number of Compressors, Ckt 1 | Number of Compressors, Ckt 1 | None | Read | |
| AI | 97 | Number of Compressors, Ckt 2 | Number of Compressors, Ckt 2 | None | Read | |
| AI | 98 | Chiller Design Capacity | Design Capacity of the Chiller | None | Read | |
| AOmin | 1 | Chilled Water Setpoint | Desired leaving water temperature if chiller is in cooling mode | Temperature | Write | |
| AOmin | 2 | Current Limit Setpoint | Sets the maximum capacity that the chiller can use | Percent | Write | |
| AO | 4 | Hot Water Setpoint | Desired leaving water temperature if chiller is in heating mode | Temperature | Write | |
| BI | 1 | Run Enabled | The chiller is available to run or is currently running | Read | Inactive = Stop, Active = Auto | |
| BImin | 2 | Local Setpoint Control | The chiller is being controlled by local setpoints instead of BAS setpoints | Read | Inactive = Remote Control, Active = Local Control | |
| BI | 3 | Capacity Limited | Conditions may exist that prevent the chiller from reaching setpoint | Read | Inactive = Not Limited, Active = Limited | |
| BImin | 4 | Chiller Running State | The chiller is running or stopped | Read | Inactive = Off, Active = On | |
| BI | 5 | Condenser Water Flow Status | Condenser water flow status | Read | Inactive = No Flow, Active = Flow | |
| BI | 6 | Maximum Capacity | All available chiller capacity is being used | Read | Inactive = Off, Active = On | |
| BI | 7 | Head Relief Request | The chiller is asking an outside system to provide more heat rejection | Read | Inactive = Off, Active = On | |
| BI | 9 | Compressor 1A Running | Compressor 1A is running | Read | Inactive = Off, Active = Running | |
| BI | 10 | Compressor 1B Running | Compressor 1B is running | Read | Inactive = Off, Active = Running | |
| BI | 11 | Compressor 2A Running | Compressor 2A is running | Read | Inactive = Off, Active = Running | |
| BI | 12 | Compressor 2B Running | Compressor 2B is running | Read | Inactive = Off, Active = Running | |
| BI | 17 | Evaporator Water Pump Request | A request from the chiller to turn on the evaporator water pump | Read | Inactive = Off, Active = On | |
| BI | 19 | Condenser Water Pump Request | A request from the chiller to turn on the condenser water pump | Read | Inactive = Off, Active = On | |
| BI | 20 | Noise Reduction Active | The chiller is in a state where noise is being reduced | Read | Inactive = Off, Active = On | |
| BI | 22 | Evaporator Water Flow Status | Water is flowing through the evaporator | Read | Inactive = No Flow, Active = Flow | |
| BImin | 23 | Alarm Present | An alarm is active | Read | Inactive = No Alarm, Active = Alarm | |
| BI | 24 | Shutdown Alarm Present | A shutdown alarm is active | Read | Inactive = No Alarm, Active = Alarm | |
| BI | 25 | Last Diagnostic | Last diagnostic for the chiller | Read | Inactive = Off, Active = On | |
| BOmin | 1 | Chiller Auto Stop Command | Allows the chiller to run if conditions for running are met | Write | Inactive = Stop, Active = Auto | |
| BO | 2 | Remote Diagnostic Reset Command | Resets remotely diagnostics that can be reset | Write | Inactive = No Reset Request, Active = Reset Request | |
| MI | 1 | Running Mode | Primary running mode of the chiller | Read | 1 = Chiller Off, 2 = Chiller in Start Mode, 3 = Chiller in Run Mode, 4 = Chiller in Pre-shutdown Mode, 5 = Chiller in Service Mode | |
| MI | 2 | Operating Mode | Primary operating mode of the chiller | Read | 1 = HVAC_Cool, 2 = HVAC_Heat, 3 = HVAC_Ice (chiller set up for ice making), 4 = Not Used | |
| MI | 3 | MP Communication Status | Do Not Use This Point | Read | Do Not Use This Point | |
| MI | 4 | Refrigerant Type | Refrigerant type | Read | 1 = R-11, 2 = R-12, 3 = R-22, 4 = R-123, 5 = R-134A, 6 = R407C, 7 = R-410A | |
| MI | 5 | Model Information | Model type of the chiller | Read | 1 = RTA, 2 = CVH, 3 = CVG, 4 = CVR, 5 = CDH, 6 = RTH, 7 = CGW, 8 = CGA, 9 = CCA, 10 = RTW, 11 = RTX, 12 = RTU, 13 = CCU, 14 = CXA, 15 = CGC, 16 = RAU | |
| MI | 6 | Cooling Type | Cooling type of the condenser | Read | 1 = Water Cooled, 2 = Air Cooled | |
| MI | 7 | Manufacturing Location | Location where chiller was manufactured | Read | 1 = Field Applied, 2 = La Crosse, 3 = Pueblo, 4 = Charmes, 5 = Rushville, 6 = Macon, 7 = Waco, 8 = Lexington, 9 = Forsyth, 10 = Clarksville, 11 = Ft. Smith, 12 = Penang, 13 = Colchester, 14 = Curitiba, 15 = Taicang, 16 = Taiwan, 17 = Epinal, 18 = Golbey | |
| MOmin | 1 | Chiller Mode Command | Mode of operation of the chiller | Write | 1 = HVAC_Cool, 2 = HVAC_Heat, 3 = HVAC_Ice (chiller set up for ice making), 4 = Not Used |
No points match these filters.
Object ID lookup: Trane BCI2-C for RTWD / RTUD chillers point IDs by name
AI1Active Cool/Heat Setpoint TemperatureAI2Active Current Limit SetpointAI5Actual Running CapacityAI7Suction Pressure- Ckt 1AI10Suction Pressure- Ckt 2AI12Evaporator Saturated Refrigerant Temperature- Ckt 1AI14Evaporator Saturated Refrigerant Temperature- Ckt 2AI16Condenser Refrigerant Pressure- Ckt 1AI18Condenser Refrigerant Pressure- Ckt 2AI20Condenser Saturated Refrigerant Temperature- Ckt 1AI22Condenser Saturated Refrigerant Temperature- Ckt 2AI24Unit Power ConsumptionAI25Local Atmospheric PressureAI26Starts- Compressor 1AAI27Starts- Compressor 1BAI28Starts- Compressor 2AAI29Starts- Compressor 2BAI34Run Time- Compressor 1AAI35Run Time- Compressor 1BAI36Run Time- Compressor 2AAI37Run Time- Compressor 2BAI44Evaporator Entering Water TempAI45Evaporator Leaving Water TempAI46Condenser Entering Water TempAI47Condenser Leaving Water TempAI48High Side Oil Pressure- Compressor 1AAI49High Side Oil Pressure- Compressor 1BAI50High Side Oil Pressure- Compressor 2AAI51High Side Oil Pressure- Compressor 2BAI57Outdoor Air TemperatureAI58Condenser Control OutputAI59Phase AB Voltage- Compressor 1AAI60Phase BC Voltage- Compressor 1AAI61Phase CA Voltage- Compressor 1AAI62Phase AB Voltage- Compressor 1BAI63Phase BC Voltage- Compressor 1BAI64Phase CA Voltage- Compressor 1BAI65Phase AB Voltage- Compressor 2AAI66Phase BC Voltage- Compressor 2AAI67Phase CA Voltage- Compressor 2AAI68Phase AB Voltage- Compressor 2BAI69Phase BC Voltage- Compressor 2BAI70Phase CA Voltage- Compressor 2BAI71Line 1 Current (in Amps)- Compressor 1AAI72Line 2 Current (in Amps)- Compressor 1AAI73Line 3 Current (in Amps)- Compressor 1AAI74Line 1 Current (in Amps)- Compressor 1BAI75Line 2 Current (in Amps)- Compressor 1BAI76Line 3 Current (in Amps)- Compressor 1BAI77Line 1 Current (in Amps)- Compressor 2AAI78Line 2 Current (in Amps)- Compressor 2AAI79Line 3 Current (in Amps)- Compressor 2AAI80Line 1 Current (in Amps)- Compressor 2BAI81Line 2 Current (in Amps)- Compressor 2BAI82Line 3 Current (in Amps)- Compressor 2BAI83Line 1 Current (%RLA)- Compressor 1AAI84Line 2 Current (%RLA)- Compressor 1AAI85Line 3 Current (%RLA)- Compressor 1AAI86Line 1 Current (%RLA)- Compressor 1BAI87Line 2 Current (%RLA)- Compressor 1BAI88Line 3 Current (%RLA)- Compressor 1BAI89Line 1 Current (%RLA)- Compressor 2AAI90Line 2 Current (%RLA)- Compressor 2AAI91Line 3 Current (%RLA)- Compressor 2AAI92Line 1 Current (%RLA)- Compressor 2BAI93Line 2 Current (%RLA)- Compressor 2BAI94Line 3 Current (%RLA)- Compressor 2BAI95Number of CircuitsAI96Number of Compressors, Ckt 1AI97Number of Compressors, Ckt 2AI98Chiller Design CapacityAO1Chilled Water SetpointAO2Current Limit SetpointAO4Hot Water SetpointBI1Run EnabledBI2Local Setpoint ControlBI3Capacity LimitedBI4Chiller Running StateBI5Condenser Water Flow StatusBI6Maximum CapacityBI7Head Relief RequestBI9Compressor 1A RunningBI10Compressor 1B RunningBI11Compressor 2A RunningBI12Compressor 2B RunningBI17Evaporator Water Pump RequestBI19Condenser Water Pump RequestBI20Noise Reduction ActiveBI22Evaporator Water Flow StatusBI23Alarm PresentBI24Shutdown Alarm PresentBI25Last DiagnosticBO1Chiller Auto Stop CommandBO2Remote Diagnostic Reset CommandMI1Running ModeMI2Operating ModeMI3MP Communication StatusMI4Refrigerant TypeMI5Model InformationMI6Cooling TypeMI7Manufacturing LocationMO1Chiller Mode Command
Integration notes
- The guide's tables mark each object against RTWD, RTUD, RTHD, RTAC, CGAM/CXAM and CGWN/CCUN; this file holds the RTWD column. The RTUD column is the same except that it adds AI 42/43 Airflow Percentage (circuits 1 and 2), and the AO setpoint table has no RTUD column.
- The BCI2-C self-configures, so only the objects that match the connected chiller show up.
- The tables have no read/write column: AI/BI/MI are read-only, and the AO/BO/MO objects (listed with relinquish defaults) are the BAS setpoints and commands, marked writable here.
- Units are given as a quantity (Temperature, Pressure, Percent...); SI or I-P follows the BCI2-C Device Units setting. Two printing slips are corrected here: AI 12 is described as circuit 2 in the guide, and BI 24's active state is printed 'None' (it means alarm).
- On RTWD, AO 4 Hot Water Setpoint is for leaving condenser water temperature control, and AI 24 Unit Power Consumption needs the power meter option.
- Trane's Symbio 800 'RTWD (CH530)' points list (BAS-PTS035A) uses the same numbering but lists only 47 analog inputs; this guide adds the AO/BO/MO commands and the BI/MI status objects.
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 BCI2-C for RTWD / RTUD chillers (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 BCI2-C for RTWD / RTUD chillers (CH530)
How many BACnet points does the Trane BCI2-C for RTWD / RTUD chillers (CH530) have?
This list has 102 BACnet objects: 71 analog inputs, 3 analog outputs, 18 binary inputs, 2 binary outputs, 7 multi-state inputs, 1 multi-state output. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Trane BCI2-C for RTWD / RTUD chillers (CH530) BACnet points are writable?
6 of the 102 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. The source has no read/write column, so this is inferred from object type.
Where is the official Trane BCI2-C for RTWD / RTUD chillers (CH530) BACnet documentation?
The source is Integration Guide: BACnet Communication Interface for Chillers (BCI2-C) (BAS-SVP055A-EN), revision 04/16/2022, published free by Trane at https://support.trane.com/hc/article_attachments/49472973334925.
What are the minimum BACnet points to integrate the Trane BCI2-C for RTWD / RTUD chillers (CH530)?
Start with BO 1 Chiller Auto Stop Command (BMS auto/stop (enable) command); MO 1 Chiller Mode Command (Cool/heat/ice mode command); AO 1 Chilled Water Setpoint (Chilled water setpoint from the BMS); AO 2 Current Limit Setpoint (Current (capacity) limit from the BMS, %); BI 4 Chiller Running State (Chiller on/off status); BI 2 Local Setpoint Control (Shows if local setpoints override BAS setpoints); AI 45 Evaporator Leaving Water Temp (Leaving chilled water temperature); AI 5 Actual Running Capacity (Actual running capacity in percent); BI 23 Alarm Present (Any active alarm on the chiller).
How do I enable BMS control of the Trane BCI2-C for RTWD / RTUD chillers (CH530)?
BO 1 Chiller Auto Stop Command (Inactive = Stop, Active = Auto; relinquish default True, i.e. Auto) is the BMS auto/stop. BI 1 Run Enabled shows whether the chiller is available to run, and BI 2 Local Setpoint Control shows when the chiller is using local setpoints instead of the BAS setpoints.
How do I check these points on the real BCI2-C for RTWD / RTUD chillers (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
- Water-cooled scroll chiller BACnet interface
Trane BCI2-C for CGWN / CCUN chillers (CH530)
Trane CGWN water-cooled and CCUN condenserless scroll chillers with CH530 controls, as listed in the BCI2-C integration guide.
Also known as: BCI2-C, BCI2C, BACnet Communication Interface for Chillers, CGWN, CCUN, CGWN water-cooled scroll chiller, CCUN condenserless chiller, BAS-SVP055 - Rooftop unit communication interface (IntelliPak)
Trane BCI2-I (IntelliPak)
Trane IntelliPak I and II rooftop units, IntelliPak air handlers and Commercial Self-Contained (CSC) units fitted with the BCI2-I BACnet card.
Also known as: BCI2-I, BCI2I, IntelliPak BACnet interface, BACnet Communication Interface for IntelliPak, BAS-SVP054, IntelliPak I, IntelliPak II, Commercial Self-Contained, Signature Series - 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 - DOAS / outdoor air unit controller
Trane Horizon Outdoor Air Unit, Tracer UC600 program V12
Trane Horizon outdoor air units (cabinets OAB, OAD, OAG, OAK, OAN) with the Tracer UC600 controller running Horizon program version 12.
Also known as: Horizon OAU, Horizon DOAS, OAU-SVP002A, Tracer UC600 Horizon, OAB, OAD, OAG, OAK, OAN - Rooftop unit controller (zone sensor interaction subset)
Trane ReliaTel BCI-R - touch-screen zone sensor points
Trane Precedent, Voyager 2/3 and Odyssey single-zone units on ReliaTel controls with a BCI-R board, used with the commercial touch-screen programmable zone sensor.
Also known as: ReliaTel, BCI-R, RTRM, X13790994001, BAYSENS924, BAS-SVP080A - VAV box controller
Trane Symbio 210 VAV
Trane VAV terminal units with the Symbio 210 programmable controller running the factory VAV programs (space temperature, ventilation flow and flow tracking control).
Also known as: Symbio 210, Symbio210, Symbio 210 VAV controller, BAS-SVP043 - Fan coil, blower coil and unit ventilator controller
Trane Symbio 400-B/500 Fan Coil, Blower Coil and Unit Ventilator
Trane fan coils, blower coils and unit ventilators controlled by a Symbio 400-B or Symbio 500 programmable controller.
Also known as: Symbio 400-B, Symbio 400B, Symbio 500, Symbio fan coil, Symbio blower coil, Symbio unit ventilator, BAS-SVP060A-EN - 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 - Rooftop unit controller
Trane Symbio 700 Voyager 3
Trane Voyager 3 packaged rooftop air conditioners with the Symbio 700 controller.
Also known as: Voyager 3, Voyager III, Symbio 700, Symbio700, BAS-SVP066 - Rooftop unit controller (zone sensor interaction subset)
Trane Symbio 800 (SCC IntelliPak) / Symbio 700 - touch-screen zone sensor points
Trane single-zone equipment on Symbio 700 and IntelliPak units on Symbio 800 (SCC), used with the commercial touch-screen programmable zone sensor.
Also known as: Symbio 700, Symbio 800, SCC IPak, IntelliPak, X13791009001, BAYSENS800, BAS-SVP080A - 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 RTWD (CH530)
Trane RTWD water-cooled helical-rotary chillers covered by Trane's 'RTWD (CH530)' Symbio 800 points list.
Also known as: RTWD, Series R RTWD, RTWD CH530, CH530, BAS-PTS035 - 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 - Dedicated outdoor air unit (DOAS) controller
Trane Tracer UC600 Packaged Outdoor Air Unit
Trane packaged outdoor air units controlled by a Tracer UC600 running the packaged outdoor air unit program.
Also known as: Tracer UC600, UC600 DOAS, Packaged Outdoor Air Unit, BAS-SVP18 - Heat pump / fan coil controller (zone sensor interaction subset)
Trane UC400-B / Symbio 500 (FC, BC, UV, staged WSHP) - touch-screen zone sensor points
Factory-programmed Trane fan coils, blower coils, unit ventilators and staged water-source heat pumps on Tracer UC400-B or Symbio 400-B/500, used with the touch-screen programmable zone sensor.
Also known as: UC400-B, Symbio 500, Symbio 400-B, X13790993001, SEN02587, X13790992001, BAS-SVP080A - Heat pump / fan coil controller (zone sensor interaction subset)
Trane UC400-B / Symbio 500 VS-WSHP - touch-screen zone sensor points
Factory-programmed Trane variable-speed water-source heat pumps on Tracer UC400-B or Symbio 400-B/500, used with the touch-screen programmable zone sensor.
Also known as: UC400-B VS-WSHP, Symbio 500 VS-WSHP, variable speed WSHP, X13790993001, SEN02587, BAS-SVP080A
Source: Integration Guide: BACnet Communication Interface for Chillers (BCI2-C) · BAS-SVP055A-EN · rev. 04/16/2022. Object names, instances and units are reproduced as published; descriptions are our own.