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

York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card) BACnet points list

Updated 6 November 2026

Short answer

JDHA DOAS units with the D19 space temperature control program expose 77 objects through the optional BACnet MS/TP card: discharge air setpoints for space and neutral modes, air temperatures and humidities, damper, fan, compressor and heat outputs, building and duct pressures, CO2, unit enable, mode flags and alarms.

This page lists 77 BACnet objects for the York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card) — 20 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from York’s own free documentation, linked below.

Manufacturer
York
Model
JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card)
Equipment
Dedicated outdoor air system (DOAS) controller
Equipment type
Rooftop units, AHUs & DOAS
BACnet objects
77 (20 writable)
Transport
BACnet MS/TP, BACnet IP
Firmware
Not stated
Default device instance
77000
Also known as
JDHA, YORK JDHA, Option D19, D19, 100.55-O1, LD18545, DOAS
Source document
Dedicated Outside Air Systems (DOAS) Operations Manual, Model JDHA - Manual for Space Temperature Control, Option D19 (Option D19 BACnet Point List) · 100.55-O1 (1015) · rev. 2015-10
Download CSV 77 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 York’s current documentation and the live device before use. Not official York information. Terms of use.

BMS integration notes: York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card)

Integration in brief

Enable the unit with BV 1 Unit_Enable and write the space-mode discharge air setpoints. Where the unit is set for BMS source, the BMS also writes supply fan speed (AV 32) and damper position (AV 16). Read discharge air temperature, supply fan status, mode flags and the general alarm.

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 1Unit_EnableUnit enable commandWrite
AV 7DA_SpcClg_SPDischarge air setpoint in space coolingWrite
AV 8DA_SpcHtg_SPDischarge air setpoint in space heatingWrite
AV 32SF_BMSSupply fan speed, % (BMS source units)Write
AV 16Damper_BMSDamper position, % (BMS source units)Write
BV 35SF_StsSupply fan proven onRead
AV 9DA_TempDischarge air temperatureRead
AV 1004Spc_CO2Space CO2, ppmRead
BV 2Alm_Rly_CmdUnit general alarmRead
BV 33Safety_StsSafety input (1 = alarm)Read

Enable & remote start

BV 1 Unit_Enable sets the unit enabled and available for operation. Heating, cooling and fan calls come from the external Y1/W1/G inputs (BV 10-13 show them). Supply fan speed and damper position follow AV 32 SF_BMS and AV 16 Damper_BMS only when the unit is configured for BMS source.

Sensors & values from the BMS

Set BV 29 OA_Temp_Sel and BV 28 OA_Hum_Sel to BMS (1), then write AV 24 OA_Temp_BMS and AV 22 OA_Hum_BMS.

Network setup

Watch out for

York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card) 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.

77 of 77 shown
Type
AnalogBinary
Access
Show
York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card) BACnet Points List
DescriptionStates
AV1CC_TempCooling Coil Discharge Air Temp°FRead
AV2CO2DmprOsSPCO2 Minimum Damper Offset SP (range 0 to 100), default 10%Write
AV3Comp_Mod_OutDX Modulation Output % (range 0 to 100)%Read
AV4DA_NAClg_SPDischarge Air Temp Neutral Cooling SP (range 50 to 100), default 80°FWrite
AV5DA_NAHtg_SPDischarge Air Temp Neutral Heating SP (range 50 to 140), default 60°FWrite
AV6DA_SPDischarge Air Temp Active SP°FRead
AVmin7DA_SpcClg_SPDischarge Air Temp Space Cooling SP (range 50 to 100), default 55°FWrite
AVmin8DA_SpcHtg_SPDischarge Air Temp Space Heating SP (range 50 to 140), default 90°FWrite
AVmin9DA_TempDischarge Air Temp°FRead
AV10Damper_CmdDamper Output Command (range 0 to 100)%Read
AV11DhOADP_SPDehum OA Dew Point Sp (range 50 to 100), default 58°FWrite
AV12Ec_OADPLO_SPEconomizer OA Dew Point Lockout SP (range 0 to 120), default 58°FWrite
AV13Ec_OALO_SPEconomizer OA Temp Lockout SP (range 0 to 120), default 60°FWrite
AV14EF_Spd_CmdExhaust Fan Speed Command (range 15 to 100), default 0%Read
AV15ERV_DA_TempEnergy Recovery Wheel Discharge Air Temp°FRead
AVmin16Damper_BMSDamper Output BMS Command (range 0 to 100)%Write
AV17HX_Mod_CmdHeating Modulation Command (range 0 to 100)%Read
AV18MA_ChgOvr_SPMixed Air Temp Auto Change Over SP (range 45 to 80), default 65°FWrite
AV19MA_TempMixed Air Temp°FRead
AV20MinDmprSPMinimum Damper SP (range 0 to 100), default 10%Write
AV21OA_Dew_PointOutside Air Dew Point°FRead
AV22OA_Hum_BMSOutdoor humidity from the BMS (used when OA_Hum_Sel = 1, BMS)%RHWrite
AV23OA_Hum_RawOutside Air Humidity%RHRead
AV24OA_Temp_BMSOutdoor air temperature from the BMS (used when OA_Temp_Sel = 1, BMS)°FWrite
AV25OA_Temp_RawOutside Air Temp°FRead
AV26RH_Mod_OutReheat Modulation Output % (range 0 to 100)%Read
AV27SF_VFD_CmdSupply Fan VFD Command (range 0 to 100)%Read
AV28RA_TempReturn Air Temperature°FRead
AV29RA_HumidityReturn Air Humidity%RHRead
AV30EA_TempExhaust Air Temperature°FRead
AV31EA_HumidityExhaust Air Humidity%RHRead
AVmin32SF_BMSSupply Fan Output BMS Command (range 0 to 100)%Write
AV1001Bldg_Press_SPBuilding Static Pressure SP (range -500 to 500), default 100; value x 1000in. WCWrite
AV1002Duct_Press_SPDuct Static Pressure SP (range 0 to 2500), default 500; value x 1000in. WCWrite
AV1003Bldg_PressureBuilding Static Pressure; value x 1000in. WCRead
AVmin1004Spc_CO2Space CO2 (range 0 to 2000)ppmRead
AV1005SpcCO2SPSpace CO2 SP (range 0 to 2000), default 1000ppmWrite
AV1006Duct_PressDuct Static Pressure; value x 1000in. WCRead
BVmin1Unit_EnableUnit Enable, default OffWrite0=Off, 1=On
BVmin2Alm_Rly_CmdUnit General Alarm Relay CommandRead0=Off, 1=On
BV3Comp_AlarmModulating Compressor General AlarmRead0=Off, 1=On
BV4Comp_Stg2_CmdCompressor Stage 2 CommandRead0=Off, 1=On
BV5Comp_Stg3_CmdCompressor Stage 3 CommandRead0=Off, 1=On
BV6Comp_Stg4_CmdCompressor Stage 4 CommandRead0=Off, 1=On
BV7EF_CmdExhaust Fan CmdRead0=Off, 1=On
BV8EF_StsExhaust Fan StatusRead0=Off, 1=On
BV9ERV_CmdEnergy Recovery Wheel CommandRead0=Off, 1=On
BV10Ext_Call_CoolExternal Cool Call Input (Y1)Read0=Off, 1=On
BV11Ext_Call_DhExternal Call Dehum InputRead0=Off, 1=On
BV12Ext_Call_FanExternal Fan Call Input (G)Read0=Off, 1=On
BV13Ext_Call_HeatExternal Heat Call Input (W1)Read0=Off, 1=On
BV14Ext_OCCOccupied Mode InputRead0=Off, 1=On
BV15Ext_Switch_1External Damper Position Sw 1Read0=Off, 1=On
BV16Ext_Switch_2External Damper Position Sw 2Read0=Off, 1=On
BV17Htr_1_StsGas Heater 1 StatusRead0=Off, 1=On
BV18Htr_2_StsGas Heater 2 StatusRead0=Off, 1=On
BV19HX_Stg1_CmdHeating Stage 1 CommandRead0=Off, 1=On
BV20HX_Stg2_CmdHeating Stage 2 CommandRead0=Off, 1=On
BV21HX_Stg3_CmdHeating Stage 3 CommandRead0=Off, 1=On
BV22HX_Stg4_CmdHeating Stage 4 CommandRead0=Off, 1=On
BV23HX_Stg5_CmdHeating Stage 5 CommandRead0=Off, 1=On
BV24HX_Stg6_CmdHeating Stage 6 CommandRead0=Off, 1=On
BV25NA_Clg_MdNeutral Air Cooling ModeRead0=Off, 1=On
BV26NA_Dehum_MdNeutral Air Dehum ModeRead0=Off, 1=On
BV27NA_Htg_MdNeutral Air Heating ModeRead0=Off, 1=On
BV28OA_Hum_SelShare OA Humidity from BMS (0=Probe 1=BMS), default OffWrite0=Off, 1=On
BV29OA_Temp_SelShare OA Temp from BMS (0=Probe 1=BMS), default OffWrite0=Off, 1=On
BV30Phase_AlarmPhase Protection AlarmRead0=Off, 1=On
BV31Preheat_CmdElectric Preheat CommandRead0=Off, 1=On
BV32Reheat_AlarmModulating Reheat Compressor General AlarmRead0=Off, 1=On
BVmin33Safety_StsSafety Input StatusRead0=Normal, 1=Alarm
BV34SF_CmdSupply Fan CommandRead0=Off, 1=On
BVmin35SF_StsSupply Fan StatusRead0=Off, 1=On
BV36Spc_Clg_MdSpace Cooling ModeRead0=Off, 1=On
BV37Spc_Dehum_MdSpace Dehum ModeRead0=Off, 1=On
BV38Spc_Htg_MdSpace Heating ModeRead0=Off, 1=On
BV39Filter_StsMain or ERV Dirty Filter StatusRead0=Off, 1=On
Object ID lookup: York JDHA DOAS D19 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 JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card) 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 York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card)

How many BACnet points does the York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card) have?

This list has 77 BACnet objects: 38 analog values, 39 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card) BACnet points are writable?

20 of the 77 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 York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card) BACnet documentation?

The source is Dedicated Outside Air Systems (DOAS) Operations Manual, Model JDHA - Manual for Space Temperature Control, Option D19 (Option D19 BACnet Point List) (100.55-O1 (1015)), revision 2015-10, published free by York at https://docs.johnsoncontrols.com/ductedsystems/api/khub/documents/8Bm9Pv7iqlegxnpP9CGEmw/content.

What are the minimum BACnet points to integrate the York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card)?

Start with BV 1 Unit_Enable (Unit enable command); AV 7 DA_SpcClg_SP (Discharge air setpoint in space cooling); AV 8 DA_SpcHtg_SP (Discharge air setpoint in space heating); AV 32 SF_BMS (Supply fan speed, % (BMS source units)); AV 16 Damper_BMS (Damper position, % (BMS source units)); BV 35 SF_Sts (Supply fan proven on); AV 9 DA_Temp (Discharge air temperature); AV 1004 Spc_CO2 (Space CO2, ppm); BV 2 Alm_Rly_Cmd (Unit general alarm); BV 33 Safety_Sts (Safety input (1 = alarm)).

How do I enable BMS control of the York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card)?

BV 1 Unit_Enable sets the unit enabled and available for operation. Heating, cooling and fan calls come from the external Y1/W1/G inputs (BV 10-13 show them). Supply fan speed and damper position follow AV 32 SF_BMS and AV 16 Damper_BMS only when the unit is configured for BMS source.

Can the BMS supply sensor values to the York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card)?

Set BV 29 OA_Temp_Sel and BV 28 OA_Hum_Sel to BMS (1), then write AV 24 OA_Temp_BMS and AV 22 OA_Hum_BMS.

How do I check these points on the real JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card)?

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 York BACnet points lists

Source: Dedicated Outside Air Systems (DOAS) Operations Manual, Model JDHA - Manual for Space Temperature Control, Option D19 (Option D19 BACnet Point List) · 100.55-O1 (1015) · rev. 2015-10. Object names, instances and units are reproduced as published; descriptions are our own.