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Dedicated outdoor air unit (DOAS) controller · BACnet points list

Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program) BACnet points list

Updated 12 November 2026

Short answer

The 62D DOAS is run by an I/O Flex 6126 controller that can talk BACnet MS/TP (and Modbus, N2 or LonWorks). The manual's mapping appendix lists 52 BACnet objects (AVs and BVs) for the 100% outdoor air program: schedule source and BAS run command, leaving air, outdoor and room setpoints, sensor values, compressor, heat, reheat and fan commands, and an alarm code.

This page lists 52 BACnet objects for the Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program) — 26 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
62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program)
Equipment
Dedicated outdoor air unit (DOAS) controller
Equipment type
Rooftop units, AHUs & DOAS
BACnet objects
52 (26 writable)
Transport
BACnet MS/TP
Firmware
100% OA STD 021711 program
Also known as
62D, 62DA, 62DB, 62DC, 62DD, 62D-1T, I/O Flex 6126, 100% OA STD 021711, Carrier 62D DOAS
Source document
62DA,DB,DC,DD07-38 Dedicated Vertical or Horizontal 100% Outdoor Air Unit with Optional Energy Conservation Wheel - Controls and Start-Up (Appendix E: BACnet/Modbus/N2/LonWorks Mapping 100% OA STD 021711) · 62D-1T · rev. 1-12
Download CSV 52 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against Carrier’s current documentation and the live device before use. Not official Carrier information. Terms of use.

BMS integration notes: Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program)

Integration in brief

Set the I/O Flex 6126 address and MS/TP baud with its rotary and DIP switches, set BAS Enable to Yes and the schedule source (SCS) to 2 = BAS. The BMS then runs the unit with BV 1 and writes leaving air, outdoor air and room setpoints; read operating mode, leaving air and outdoor temperatures, fan command and the alarm code.

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 1enable_bas_1Unit run command from BASWrite
AV 15ctrl_source_1Schedule source; 2 = BAS controls the unitWrite
AV 218latclgsp_1Occupied leaving air cooling setpointWrite
AV 59supply_esp_1Supply fan differential pressure setpointWrite
AV 5cond_1Unit operating modeRead
BV 11supply_fan_command_1Supply fan relay command (status)Read
AV 30slat_1Leaving air temperatureRead
AV 42soat_1Outside air temperatureRead
AV 164ca_1Active alarm codeRead

Enable & remote start

On the BACview Schedule screen set SCS to 2 (BAS) so another control system operates the unit; BAS Enable must be Yes in the configuration. SCS is also exposed as AV 15 (ctrl_source_1) and the BAS run command as BV 1 (enable_bas_1).

Network setup

Watch out for

Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program) 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.

52 of 52 shown
Type
AnalogBinary
Access
Show
Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program) BACnet Points List
DescriptionStates
AV3co2_1CO2: CO2 sensorRead
AV4co2_sp_1CO2 SP: CO2 setpointWrite
AVmin5cond_1CONDITION: Unit operating modeRead
AV6cusp_1CLG 1 UNOCC SP: Room air temp stage 1 cooling setpoint, unoccupiedWrite
AVmin15ctrl_source_1SOFTWARE CTRL SOURCE: Schedule control source (SCS)Write0=Interlock input (not used), 1=BACview schedule, 2=BAS, 3=WebCTRL (not used), 4=Occupied override
AV18htg_valve_stat_1HTG CTRL: Modulating heat control (gas furnace or electric heat)Read
AV21mrc_1HGRH CTRL: Modulating hot gas reheat control on leaving air tempRead
AV27husp_1RAT HTG 1 UNOCC SP: Room air temp heating 1 setpoint, unoccupiedWrite
AV29la_hsp2_1LAT HTG 2 SP: Leaving air temp stage 2 heating setpoint, occupiedWrite
AVmin30slat_1LEAVING AIR TEMP: Leaving air temperature sensorRead
AV34oa_sp1_1OA CLG 1 SP: Outside air temp stage 1 cooling setpointWrite
AV35oa_sp2_1OA CLG 2 SP: Outside air temp stage 2 cooling setpointWrite
AV36oa_hsp1_1OA HTG 1 SP: Outside air temp stage 1 heating setpointWrite
AV39mdc_1CODENSER VALVE CTRL: Discharge valve controlRead
AV41oah_1OUTSIDE AIR RELATIVE HTY: Outside air relative humidity sensorRead
AVmin42soat_1OUTSIDE AIR TEMP: Outside air temperature sensorRead
AV53rah_1ROOM AIR RELATIVE HTY: Room air relative humidity sensorRead
AV55room_or_setpoint_1ROOM CTRL OVERRIDE SP: Room control temp override setpoint (reheat and heat)Write
AV58sf_pressure_value_1SF DPT: Supply fan differential pressureRead
AVmin59supply_esp_1SF DPT SP: Supply fan differential pressure setpointWrite
AV63space_tempera_1ZONE AIR TEMP: Room air temperature sensorRead
AVmin164ca_1CODE OF ALARMS: Alarm code (see alarm code list)Read
AV174mcc_1DIGITAL COMP CTRL: Digital compressor control (DCC)Read
AV176hgrhrah_sp_1HGRH RAH SP DC CTRL: Room RH reheat setpoint for digital compressor controlWrite
AV178hgrhrahu_sp_1HGRH RAH UNOCC SP: Room RH reheat setpoint, unoccupiedWrite
AV197sf_vfd_module_1SF VFD Ctrl: Supply fan VFD outputRead
AVmin218latclgsp_1LAT CLG OCC SP: Leaving air temp cooling setpoint, occupiedWrite
AV224latclgspu_1LAT CLG UNOCC SP: Leaving air temp cooling setpoint, unoccupiedWrite
AV241lathgrh_1LAT HGRH SP: Leaving air temp reheat setpoint, occupiedWrite
AV255cusp2_1CLG 2 UNOCC SP: Room air temp stage 2 cooling setpoint, unoccupiedWrite
AV256da_min_1DAMPER MIN OPEN: Damper minimum % openWrite
AV257econ_value_1ECONOMIZER CTRL: Economizer control (ECON)Read
AV258husp2_1RAT HTG 2 UNOCC SP: Room air temp heating 2 setpoint, unoccupiedWrite
AV273slssp_1SUCTION LINE TEMP Y1= OFF SP: Suction line temp setpoint for compressor 1 (Y1)Write
AV274slssp1_1SUCTION LINE TEMP DC=10 SP: Suction line temp setpoint, digital scroll Y1 at 10%Write
AV275sr_1SUCTION LINE TEMP: Suction line temperature sensorRead
AV276oa_entpy_1OA ENTPY: Outside air enthalpy valueRead
AV277oaecsp_1OA ENTPY CLG SP: Outside air enthalpy cooling setpointWrite
AV278oaehsp_1OA ENTPY HTG SP: Outside air enthalpy heating setpointWrite
AV280ra_entpy_1RA ENTPY: Room air enthalpy valueRead
AV281wuphsp_1WARM UP HTG SP: Room air temp warm-up heating setpointWrite
BVmin1enable_bas_1UNIT OPERATION FROM BAS: Building automation system controlWrite
BVmin11supply_fan_command_1SF CMD: Supply fan relay command (BR)Read
BV12galarm_1ALARM SOUND ACTIVATION: Alarm sound activation commandRead
BV14comp_1_cmd_1COMP 1 CMD: Compressor 1 start commandRead
BV15comp_2_cmd_1COMP 2 CMD: Compressor 2 start commandRead
BV17htg_2_command_1HEATING 2 CMD: Heat 2 start commandRead
BV18reheat_cmd_1REHEAT CMD: Hot gas reheat solenoid valve relay command (RHR)Read
BV30room_control_1ROOM CTRL OVERRIDE ENABLE: Room control temp override (reheat) activationWrite
BV45nsben_1NIGHT SET BACK ENABLE: Night setback activationWrite
BV114exh__wheel_1OD / EF / WM / WD CMD: Exhaust fan, wheel, outside damper commandRead
BV132htg_1_command_1HEATING 1 CMD: Heat 1 start commandRead
Object ID lookup: Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit point IDs by name

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. 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 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program) 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 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program)

How many BACnet points does the Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program) have?

This list has 52 BACnet objects: 41 analog values, 11 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program) BACnet points are writable?

26 of the 52 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 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program) BACnet documentation?

The source is 62DA,DB,DC,DD07-38 Dedicated Vertical or Horizontal 100% Outdoor Air Unit with Optional Energy Conservation Wheel - Controls and Start-Up (Appendix E: BACnet/Modbus/N2/LonWorks Mapping 100% OA STD 021711) (62D-1T), revision 1-12, published free by Carrier at https://www.shareddocs.com/hvac/docs/1005/Public/04/62D-1T.pdf.

What are the minimum BACnet points to integrate the Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program)?

Start with BV 1 enable_bas_1 (Unit run command from BAS); AV 15 ctrl_source_1 (Schedule source; 2 = BAS controls the unit); AV 218 latclgsp_1 (Occupied leaving air cooling setpoint); AV 59 supply_esp_1 (Supply fan differential pressure setpoint); AV 5 cond_1 (Unit operating mode); BV 11 supply_fan_command_1 (Supply fan relay command (status)); AV 30 slat_1 (Leaving air temperature); AV 42 soat_1 (Outside air temperature); AV 164 ca_1 (Active alarm code).

How do I enable BMS control of the Carrier 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program)?

On the BACview Schedule screen set SCS to 2 (BAS) so another control system operates the unit; BAS Enable must be Yes in the configuration. SCS is also exposed as AV 15 (ctrl_source_1) and the BAS run command as BV 1 (enable_bas_1).

How do I check these points on the real 62DA/DB/DC/DD 07-38 Dedicated Outdoor Air Unit (I/O Flex 6126, 100% OA program)?

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: 62DA,DB,DC,DD07-38 Dedicated Vertical or Horizontal 100% Outdoor Air Unit with Optional Energy Conservation Wheel - Controls and Start-Up (Appendix E: BACnet/Modbus/N2/LonWorks Mapping 100% OA STD 021711) · 62D-1T · rev. 1-12. Object names, instances and units are reproduced as published; descriptions are our own.