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VRF outdoor unit (BACnet gateway device) · BACnet points list
Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device) BACnet points list
Updated 12 November 2026
The GW-BAC publishes every SDV5 outdoor unit it finds as its own BACnet IP device with the same 13 read-only objects: mode, on/off and alarm status, ambient temperature, compressor frequencies and discharge temperatures, pressures, error code and fan speeds. Outdoor units cannot be commanded through the gateway; control goes through the indoor unit devices.
This page lists 13 BACnet objects for the Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device) — 0 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Sinclair’s own free documentation, linked below.
- Manufacturer
- Sinclair
- Model
- SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device)
- Equipment
- VRF outdoor unit (BACnet gateway device)
- Equipment type
- VRF & split air conditioners
- BACnet objects
- 13 (0 writable)
- Transport
- BACnet IP
- Firmware
- Not stated
- Default device instance
- Network number x 10000 + port x 1000 + 100 + outdoor unit address
- Also known as
- GW-BAC outdoor unit, SDV5 outdoor unit BACnet, Sinclair VRF outdoor unit BACnet
Reference only, provided as-is: verify against Sinclair’s current documentation and the live device before use. Not official Sinclair information. Terms of use.
BMS integration notes: Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device)
Once the gateway has an IP address and a unique BACnet network number, each outdoor unit appears as its own device at network x 10000 + port x 1000 + 100 + address. Read status, alarm and error code for monitoring; all objects are read-only.
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 |
|---|---|---|---|
| BI 1 | On/Off Status | Outdoor unit running (1 = on) | Read |
| MI 1 | Mode Status | Operating mode (1 = off, 3 = cool, 4 = heat) | Read |
| AI 1 | Ambient Temperatue | Outdoor air temperature, °C | Read |
| AI 6 | High Pressure | Discharge pressure, bar | Read |
| AI 7 | Low Pressure | Suction pressure, bar | Read |
| BI 2 | Alarm Indication | Outdoor unit error (1 = error) | Read |
| AI 8 | Malfunction Code | Active error code number, 0 = none | Read |
Network setup
- Default IP address is 192.168.1.8; configuration is done from a web browser at that address (user admin).
- Set a BACnet network number of 2-254 that no other gateway or device uses; it takes effect after a restart.
- Outdoor unit device instance = network number x 10000 + port x 1000 + 100 + outdoor address (0-31).
Watch out for
- Outdoor unit devices are read-only; start/stop and setpoints are written to the indoor unit devices.
- Re-addressing an outdoor unit or moving it to another port changes its device instance.
Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device) 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 | |||||
|---|---|---|---|---|---|---|
| MImin | 1 | Mode Status | Outdoor unit operating mode | Read | 1=Off, 2=Reserved, 3=Cool, 4=Heat, 5=Forced Cool, 6=Master Cool, 7=Master Heat, 8=Forced Heat | |
| BImin | 1 | On/Off Status | Outdoor unit on/off | Read | 0=Off, 1=On | |
| BImin | 2 | Alarm Indication | Outdoor unit error | Read | 0=No error, 1=Error | |
| AImin | 1 | Ambient Temperatue | Outdoor ambient temperature | °C | Read | |
| AI | 2 | Compressor 1 Freq | Compressor 1 frequency | Hz | Read | |
| AI | 3 | Compressor 2 Freq | Compressor 2 frequency | Hz | Read | |
| AI | 4 | Compressor 1 Discharge Temp | Compressor 1 discharge temperature | °C | Read | |
| AI | 5 | Compressor 2 Discharge Temp | Compressor 2 discharge temperature | °C | Read | |
| AImin | 6 | High Pressure | Compressor high pressure | bar | Read | |
| AImin | 7 | Low Pressure | Compressor low pressure | bar | Read | |
| AImin | 8 | Malfunction Code | Error code number (0 = no error) | Read | ||
| AI | 9 | Fan 1 Speed | Fan 1 speed | Read | ||
| AI | 10 | Fan 2 Speed | Fan 2 speed | Read |
No points match these filters.
Object ID lookup: Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device) point IDs by name
Integration notes
- Each outdoor unit is a separate BACnet device. Device instance = network number x 10000 + 485 port x 1000 + 100 + outdoor address (0-31). Ports are 0-3 (0 = the port next to the Ethernet jack).
- Object instances are the same in every outdoor unit device; only the device instance changes.
- All objects are read-only. Not every model supports every object.
- Malfunction Code numbers map to display codes (1-20 = A0-AU, 21-40 = b0-bU, and so on) in the manual's error code table.
- 'Ambient Temperatue' is spelled as printed in the manual.
- Indoor unit devices from the same gateway are in sinclair/sdv5-gw-bac.
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 SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device) 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 Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device)
How many BACnet points does the Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device) have?
This list has 13 BACnet objects: 10 analog inputs, 2 binary inputs, 1 multi-state input. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device) BACnet points are writable?
None of the listed objects are marked writable in the source documentation.
Where is the official Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device) BACnet documentation?
The source is GW-BAC Commercial Air Conditioners SDV5 (user manual), 4-2 Object List for Outdoor Units, published free by Sinclair at https://sinclair-solutions.com/files/user-manual-en/sdv5/sinclair-um-gw-bac-en.pdf.
What are the minimum BACnet points to integrate the Sinclair SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device)?
Start with BI 1 On/Off Status (Outdoor unit running (1 = on)); MI 1 Mode Status (Operating mode (1 = off, 3 = cool, 4 = heat)); AI 1 Ambient Temperatue (Outdoor air temperature, °C); AI 6 High Pressure (Discharge pressure, bar); AI 7 Low Pressure (Suction pressure, bar); BI 2 Alarm Indication (Outdoor unit error (1 = error)); AI 8 Malfunction Code (Active error code number, 0 = none).
How do I check these points on the real SDV5 VRF BACnet Gateway GW-BAC (outdoor unit device)?
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 Sinclair BACnet points lists
Source: GW-BAC Commercial Air Conditioners SDV5 (user manual), 4-2 Object List for Outdoor Units. Object names, instances and units are reproduced as published; descriptions are our own.