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R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9)

Packaged rooftop unit controller · BACnet points list

Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9) BACnet points list

Updated 12 November 2026

Short answer

R7DA and Y series packaged rooftop units with controls D19, D21, D22 or D23 use a programmable system controller that accepts a BACnet MS/TP card (option BHB8) or a BACnet IP/Ethernet card (option BHB9). The point list has 42 analog variables (AV 1-42), 19 integer variables (AV 1001-1019) and 47 digital variables (BV 1-48). The BMS can enable the unit, set occupancy and state, write discharge and space setpoints, send fan/heat/cool/dehumidify calls, share outdoor temperature and humidity, and command damper and fan outputs.

This page lists 108 BACnet objects for the Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9) — 40 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Reznor’s own free documentation, linked below.

Manufacturer: Reznor
Model: R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9)
Equipment: Packaged rooftop unit controller
Equipment type: Rooftop units, AHUs & DOAS
BACnet objects: 108 (40 writable)
Transport: BACnet MS/TP, BACnet IP
Firmware: Not stated
Default device instance: 77000
Also known as: R7DA, Reznor Y series, R7DA-Y-D19-D21-D22-D23, 1024315-C, CP-P125-R7DA-D19-D21-D22-D23, 1024315-B, D19, D21, D22, D23, BHB8, BHB9, P125
Source document: Control System Guide for R7DA and Y Series, Options D19, D21, D22 and D23 · R7DA-Y-D19-D21-D22-D23 (05-26) 1024315-C · rev. 2026-05

Download CSV 108 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 Reznor’s current documentation and the live device before use. Not official Reznor information. Terms of use.

BMS integration notes: Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9)

Integration in brief

Fit the BHB8 MS/TP or BHB9 IP/Ethernet card and set the BACnet ID (default 77000), baud/MAC or IP settings from the controller's PCOWEB / NET CONFIG menu, then cycle power. Enable the unit with BV 39, set OccMode_Sel (AV 1007) to 2 and command occupancy with BV 26, pick the state with AV 1006 and write the setpoints. Monitor supply fan status, discharge temperature and the general alarm relay.

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
BV 39	Unit_Enable	Unit enable	Write
BV 26	Occupied_BMS	Occupancy command (needs AV 1007 = 2)	Write
AV 1007	OccMode_Sel	Occupancy source: 0 schedule, 1 input, 2 BMS	Write
AV 1006	State_Sel	Unit state: 2 auto, 3 cool, 4 heat, 5 off	Write
AV 28	SpcTempSP	Space temperature setpoint, 65-85 °F	Write
AV 40	DA_BMS_SP	Discharge air setpoint from the BMS (D22)	Write
BV 38	BMS_Alm_Rst	Alarm reset	Write
BV 32	SF_Sts	Supply fan status	Read
AV 9	DA_Temp	Discharge air temperature	Read
BV 1	Alm_Rly_Cmd	General alarm relay on	Read

Enable & remote start

BV 39 Unit_Enable enables the unit. Occupancy comes from the schedule, a digital input or the BMS, chosen with AV 1007 OccMode_Sel; with 2 = BMS, BV 26 Occupied_BMS sets occupancy. AV 1006 State_Sel picks auto, cool, heat or off. BV 44-47 are BMS fan, heat, cool and dehumidify calls, and on D22 AV 40 DA_BMS_SP is the BMS discharge air setpoint.

Sensors & values from the BMS

Set BV 24 OA_Temp_Sel or BV 23 OA_Hum_Sel to 1 (BMS) and write AV 20 OA_Temp_BMS or AV 18 OA_Hum_BMS.

Network setup

Default BACnet ID 77000; MS/TP default 38400 baud, Max Masters 127, Max Frames 20.
Settings: hold Alarm and Enter > OTHER INFORMATION > PCOWEB / NET CONFIG > PCONET Settings (MS/TP) or PCOWEB Settings (IP/Ethernet).
Save with Update pCOnet/pCOWeb = Yes, then cycle power to the controller.

Watch out for

Static pressure integers are scaled x1000.
BV 26 has no effect unless AV 1007 is set to 2 (BMS).

Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9) 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.

108 of 108 shown

Type

AnalogBinary

Access

Units

Show

Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9) BACnet Points List
			Description			States
AV	1	CC_Temp	Cooling coil Discharge Air Temp	°F	Read
AV	2	Comp_A_Cmd	Compressor A modulation command; range 0 to 100	%	Read
AV	3	DA_NAClg_SP	Discharge Air Temp neutral cooling setpoint; range 50 to 100; default 70	°F	Write
AV	4	DA_NAHtg_SP	Discharge Air Temp neutral heating setpoint; range 50 to 140; default 70	°F	Write
AV	5	DA_SP	Discharge Air Temp active setpoint	°F	Read
AV	6	DA_SpcClg_SP	Discharge Air Temp space cooling setpoint; range 50 to 100; default 55	°F	Write
AV	7	DA_SpcHtCl_SP	Discharge Air Temp space heat mode cooling setpoint; range 50 to 100; default 55	°F	Write
AV	8	DA_SpcHtg_SP	Discharge Air Temp space heating setpoint; range 50 to 140; default 90	°F	Write
AVmin	9	DA_Temp	Discharge Air Temp	°F	Read
AV	10	Damper_Cmd	Damper output command; range 0 to 100	%	Read
AV	11	DhOADP_SP	Dehumidification outside air dew point setpoint; range 50 to 100; default 58	°F	Write
AV	12	EF_Spd_Cmd	Exhaust fan speed command; range 15 to 100	%	Read
AV	13	ERV_DA_Temp	Energy recovery wheel Discharge Air Temp	°F	Read
AV	14	Damper_BMS	Damper output BMS command; range 0 to 100	%	Write
AV	15	HX_Mod_Cmd	Heating modulation command; range 0 to 100	%	Read
AV	16	MA_Temp	Mixed air temperature	°F	Read
AV	17	OA_Dew_Point	Outside air dew point	°F	Read
AV	18	OA_Hum_BMS	Outside air humidity from BMS; used when OA_Hum_Sel = 1	%RH	Write
AV	19	OA_Hum_Raw	Outside air humidity	%RH	Read
AV	20	OA_Temp_BMS	Outside air temp from BMS; used when OA_Temp_Sel = 1	°F	Write
AV	21	OA_Temp_Raw	Outside Air Temp	°F	Read
AV	22	OAChgOv_SP	Outside air change over setpoint; range 45 to 80; default 65	°F	Write
AV	23	RH_A_Cmd	Reheat A modulation command; range 0 to 100	%	Read
AV	24	SF_Spd_Cmd	Supply fan speed command; range 0 to 100	%	Read
AV	25	Spc_Temp	Space temperature	°F	Read
AV	26	SpcEffClgSP	Space effective cooling setpoint	°F	Read
AV	27	SpcEffHtgSP	Space effective heating setpoint	°F	Read
AVmin	28	SpcTempSP	Space temperature setpoint; range 65 to 85; default 72	°F	Write
AV	29	RA_Temp	Return air temperature	°F	Read
AV	30	RA_Humidity	Return air humidity	%RH	Read
AV	31	EA_Temp	Exhaust air temperature	°F	Read
AV	32	EA_Humidity	Exhaust air humidity	%RH	Read
AV	33	SF_BMS	Supply fan output BMS command; range 0 to 100	%	Write
AV	34	EF_BMS	Exhaust fan output BMS command; range 0 to 100	%	Write
AV	35	DA_Dh_SP	Discharge Air Temp dehumidification setpoint; range 50 to 100; default 70	°F	Write
AV	36	MinDmprSp	Minimum damper setpoint; range 0 to 100; default 10	%	Write
AV	37	EC_OADPLO_SP	Economizer outside air dew point lockout setpoint; range 0 to 120; default 58	°F	Write
AV	38	EC_OALO_SP	Economizer OAT lockout setpoint; range 0 to 120; default 60	°F	Write
AV	39	CO2DmprOsSP	CO2 minimum damper offset setpoint 2; range 0 to 100; default 10	%	Write
AVmin	40	DA_BMS_SP	Discharge Air Temp BMS setpoint; range 50 to 140	°F	Write
AV	41	RH_B_Cmd	Reheat B modulation command	%	Read
AV	42	Comp_B_MCmd	Compressor B modulation command	%	Read
AV	1001	Bldg_Pressure	Building static pressure	in. w.c.	Read
AV	1002	Bldg_Press_SP	Building static pressure setpoint; range −500 to 500; default 100	in. w.c.	Write
AV	1003	Duct_Press_SP	Duct static pressure setpoint; range 0 to 2500; default 500	in. w.c.	Write
AV	1004	Spc_Hum	Space humidity	%RH	Read
AV	1005	SpcHumSP	Space humidity setpoint; range 35 to 75; default 55	%RH	Write
AVmin	1006	State_Sel	State select; default 5		Write	2=AUTO, 3=COOL, 4=HEAT, 5=OFF
AVmin	1007	OccMode_Sel	Occupied mode select; default 1		Write	0=Schedule, 1=Digital Input, 2=BMS
AV	1008	Spc_CO2	Space CO2	ppm	Read
AV	1009	SpcCO2SP	Space CO2 setpoint; range 0 to 2000; default 1000	ppm	Write
AV	1010	Duct_Pressure	Duct static pressure	in. w.c.	Read
AV	1011	SF_CFM	Supply fan cfm	cfm	Read
AV	1012	SF_CFM_SP	Supply fan cfm setpoint; default 3000	cfm	Write
AV	1013	EF_CFM	Exhaust fan cfm	cfm	Read
AV	1014	EF_CFM_SP	Exhaust fan cfm setpoint; default 3000	cfm	Write
AV	1015	EF_CFMOs_SP	Exhaust fan cfm tracking offset setpoint; default 0	cfm	Write
AV	1016	OA_CFM	Outside air cfm	cfm	Read
AV	1017	OA_CFM_SP	Outside air cfm setpoint; default 3000	cfm	Write
AV	1018	MIN_CFM_SP	Minimum outside air cfm setpoint; default 500	cfm	Write
AV	1019	MIN_CFMOsSP	Minimum outside air cfm offset setpoint; default 500	cfm	Write
BVmin	1	Alm_Rly_Cmd	Unit general alarm relay command		Read	0=Off, 1=On
BV	2	Comp_A_Alarm	Modulating compressor A alarm		Read	0=Off, 1=On
BV	3	Comp_B_Cmd	Compressor B command		Read	0=Off, 1=On
BV	4	Comp_C_Cmd	Compressor C command		Read	0=Off, 1=On
BV	5	Comp_D_Cmd	Compressor D command		Read	0=Off, 1=On
BV	6	EF_Cmd	Exhaust fan command		Read	0=Off, 1=On
BV	7	EF_Sts	Exhaust fan status		Read	0=Off, 1=On
BV	8	ERV_Cmd	Energy recovery wheel command		Read	0=Off, 1=On
BV	10	Ext_Switch_1	External position switch 1		Read	0=Off, 1=On
BV	11	Ext_Switch_2	External position switch 2		Read	0=Off, 1=On
BV	12	Htr_1_Sts	Gas heater 1 status		Read	0=Off, 1=On
BV	13	Htr_2_Sts	Gas heater 2 status		Read	0=Off, 1=On
BV	14	HX_Stg1_Cmd	Heating stage 1 command		Read	0=Off, 1=On
BV	15	HX_Stg2_Cmd	Heating stage 2 command		Read	0=Off, 1=On
BV	16	HX_Stg3_Cmd	Heating stage 3 command		Read	0=Off, 1=On
BV	17	HX_Stg4_Cmd	Heating stage 4 command		Read	0=Off, 1=On
BV	18	HX_Stg5_Cmd	Heating stage 5 command		Read	0=Off, 1=On
BV	19	HX_Stg6_Cmd	Heating stage 6 command		Read	0=Off, 1=On
BV	20	NA_Clg_Md	Neutral air cooling mode		Read	0=Off, 1=On
BV	21	NA_Dehum_Md	Neutral air dehumidification mode		Read	0=Off, 1=On
BV	22	NA_Htg_Md	Neutral air heating mode		Read	0=Off, 1=On
BV	23	OA_Hum_Sel	Share outside air humidity from BMS (0 = Probe, 1 = BMS); default Off		Write	0=Off, 1=On
BV	24	OA_Temp_Sel	Share OAT from BMS (0 = Probe, 1 = BMS); default Off		Write	0=Off, 1=On
BV	25	Occupied	Occupied mode status		Read	0=Off, 1=On
BVmin	26	Occupied_BMS	Occupied mode from BMS; used when OccMode_Sel = 2; default Off		Write	0=Off, 1=On
BV	27	Phase_Alarm	Phase protection alarm		Read	0=Off, 1=On
BV	28	Preheat_Cmd	Electric preheat command		Read	0=Off, 1=On
BV	29	RH_A_Alarm	Modulating reheat compressor A alarm		Read	0=Off, 1=On
BV	30	Safety_Sts	Safety input status		Read	0=Normal, 1=Alarm
BV	31	SF_Cmd	Supply fan command		Read	0=Off, 1=On
BVmin	32	SF_Sts	Supply fan status		Read	0=Off, 1=On
BV	33	Spc_Clg_Md	Space cooling mode		Read	0=Off, 1=On
BV	34	Spc_Dehum_Md	Space dehumidification mode		Read	0=Off, 1=On
BV	35	Spc_Htg_Md	Space heating mode		Read	0=Off, 1=On
BV	36	Spc_HtgClg_Md	Space heating cooling mode		Read	0=Off, 1=On
BV	37	Filter_Sts	Main or ERV dirty filter status		Read	0=Off, 1=On
BVmin	38	BMS_Alm_Rst	BMS alarm reset; default Off		Write	0=Off, 1=On
BVmin	39	Unit_Enable	Unit enable; default Off		Write	0=Off, 1=On
BV	40	Ext_Call_Fan	External call fan input (G)		Read	0=Off, 1=On
BV	41	Ext_Call_Heat	External call heat input (W1)		Read	0=Off, 1=On
BV	42	Ext_Call_Cool	External call cool input (Y1)		Read	0=Off, 1=On
BV	43	Ext_Call_Dh	External call dehumidification input		Read	0=Off, 1=On
BV	44	BMS_Call_Fan	BMS call fan input (G)		Write	0=Off, 1=On
BV	45	BMS_Call_Heat	BMS call heat input (W1)		Write	0=Off, 1=On
BV	46	BMS_Call_Cool	BMS call cool input (Y1)		Write	0=Off, 1=On
BV	47	BMS_Call_Dh	BMS call dehumidification input		Write	0=Off, 1=On
BV	48	Comp_B_Alarm	Modulating compressor B alarm		Read	0=Off, 1=On

Object ID lookup: Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 point IDs by name

AV1CC_Temp
AV2Comp_A_Cmd
AV3DA_NAClg_SP
AV4DA_NAHtg_SP
AV5DA_SP
AV6DA_SpcClg_SP
AV7DA_SpcHtCl_SP
AV8DA_SpcHtg_SP
AV9DA_Temp
AV10Damper_Cmd
AV11DhOADP_SP
AV12EF_Spd_Cmd
AV13ERV_DA_Temp
AV14Damper_BMS
AV15HX_Mod_Cmd
AV16MA_Temp
AV17OA_Dew_Point
AV18OA_Hum_BMS
AV19OA_Hum_Raw
AV20OA_Temp_BMS
AV21OA_Temp_Raw
AV22OAChgOv_SP
AV23RH_A_Cmd
AV24SF_Spd_Cmd
AV25Spc_Temp
AV26SpcEffClgSP
AV27SpcEffHtgSP
AV28SpcTempSP
AV29RA_Temp
AV30RA_Humidity
AV31EA_Temp
AV32EA_Humidity
AV33SF_BMS
AV34EF_BMS
AV35DA_Dh_SP
AV36MinDmprSp
AV37EC_OADPLO_SP
AV38EC_OALO_SP
AV39CO2DmprOsSP
AV40DA_BMS_SP
AV41RH_B_Cmd
AV42Comp_B_MCmd
AV1001Bldg_Pressure
AV1002Bldg_Press_SP
AV1003Duct_Press_SP
AV1004Spc_Hum
AV1005SpcHumSP
AV1006State_Sel
AV1007OccMode_Sel
AV1008Spc_CO2
AV1009SpcCO2SP
AV1010Duct_Pressure
AV1011SF_CFM
AV1012SF_CFM_SP
AV1013EF_CFM
AV1014EF_CFM_SP
AV1015EF_CFMOs_SP
AV1016OA_CFM
AV1017OA_CFM_SP
AV1018MIN_CFM_SP
AV1019MIN_CFMOsSP
BV1Alm_Rly_Cmd
BV2Comp_A_Alarm
BV3Comp_B_Cmd
BV4Comp_C_Cmd
BV5Comp_D_Cmd
BV6EF_Cmd
BV7EF_Sts
BV8ERV_Cmd
BV10Ext_Switch_1
BV11Ext_Switch_2
BV12Htr_1_Sts
BV13Htr_2_Sts
BV14HX_Stg1_Cmd
BV15HX_Stg2_Cmd
BV16HX_Stg3_Cmd
BV17HX_Stg4_Cmd
BV18HX_Stg5_Cmd
BV19HX_Stg6_Cmd
BV20NA_Clg_Md
BV21NA_Dehum_Md
BV22NA_Htg_Md
BV23OA_Hum_Sel
BV24OA_Temp_Sel
BV25Occupied
BV26Occupied_BMS
BV27Phase_Alarm
BV28Preheat_Cmd
BV29RH_A_Alarm
BV30Safety_Sts
BV31SF_Cmd
BV32SF_Sts
BV33Spc_Clg_Md
BV34Spc_Dehum_Md
BV35Spc_Htg_Md
BV36Spc_HtgClg_Md
BV37Filter_Sts
BV38BMS_Alm_Rst
BV39Unit_Enable
BV40Ext_Call_Fan
BV41Ext_Call_Heat
BV42Ext_Call_Cool
BV43Ext_Call_Dh
BV44BMS_Call_Fan
BV45BMS_Call_Heat
BV46BMS_Call_Cool
BV47BMS_Call_Dh
BV48Comp_B_Alarm

Integration notes

Analog variables are AV 1-42, integer variables AV 1001-1019 and digital variables BV 1-48; BV 9 is not listed.
Building and duct static pressure (AV 1001-1003, AV 1010) must be divided by 1000 in the BMS.
Defaults and min/max are shown as printed; binary min/max columns give the off/on state text.
Source: Table 30 BACnet Points List, guide pages 50-52.

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 R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9) 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 Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9)

How many BACnet points does the Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9) have?

This list has 108 BACnet objects: 61 analog values, 47 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9) BACnet points are writable?

40 of the 108 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 Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9) BACnet documentation?

The source is Control System Guide for R7DA and Y Series, Options D19, D21, D22 and D23 (R7DA-Y-D19-D21-D22-D23 (05-26) 1024315-C), revision 2026-05, published free by Reznor at https://assets.reznorhvac.com/download/DA4B0977-C1A0-4675-A665-3DCFC911F756/R7DA-Y-D19-D21-D22-D23%20%2805-26%29%201024315-C.pdf.

What are the minimum BACnet points to integrate the Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9)?

Start with BV 39 Unit_Enable (Unit enable); BV 26 Occupied_BMS (Occupancy command (needs AV 1007 = 2)); AV 1007 OccMode_Sel (Occupancy source: 0 schedule, 1 input, 2 BMS); AV 1006 State_Sel (Unit state: 2 auto, 3 cool, 4 heat, 5 off); AV 28 SpcTempSP (Space temperature setpoint, 65-85 °F); AV 40 DA_BMS_SP (Discharge air setpoint from the BMS (D22)); BV 38 BMS_Alm_Rst (Alarm reset); BV 32 SF_Sts (Supply fan status); AV 9 DA_Temp (Discharge air temperature); BV 1 Alm_Rly_Cmd (General alarm relay on).

How do I enable BMS control of the Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9)?

Can the BMS supply sensor values to the Reznor R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9)?

Set BV 24 OA_Temp_Sel or BV 23 OA_Hum_Sel to 1 (BMS) and write AV 20 OA_Temp_BMS or AV 18 OA_Hum_BMS.

How do I check these points on the real R7DA and Y Series Rooftop Controls, Options D19 / D21 / D22 / D23 (BACnet card BHB8 / BHB9)?

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 Reznor BACnet points lists

Source: Control System Guide for R7DA and Y Series, Options D19, D21, D22 and D23 · R7DA-Y-D19-D21-D22-D23 (05-26) 1024315-C · rev. 2026-05. Object names, instances and units are reproduced as published; descriptions are our own.