Rooftop unit controller · BACnet points list

Carrier RTU Open v5 BACnet points list

Updated 28 October 2026

Short answer

RTU Open is Carrier's multi-protocol controller for packaged rooftop units and heat pumps. It speaks BACnet MS/TP or ARC156 natively and can be switched to Modbus, N2 or LonWorks. Its device instance is derived from Carrier's vendor ID (16) and the rotary address switches. Points cover setpoints, sensor values, stages, economizer/ventilation, alarms and the 'system' points a BAS can write in place of local sensors.

This page lists 200 BACnet objects for the Carrier RTU Open v5 — 104 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: RTU Open v5
Equipment: Rooftop unit controller
Equipment type: Rooftop units, AHUs & DOAS
BACnet objects: 200 (104 writable)
Transport: BACnet MS/TP, BACnet ARC156
Firmware: Not stated
Default device instance: 16101xx (xx = rotary switch address)
Also known as: RTU Open, OPN-RTU, RTU-Open, 11-808-697-01
Source document: RTU Open v5 Integration Guide (Appendix A: Network Points List) · 11-808-697-01 · rev. 2019-11-19

Instance calculator. This list prints one unit; the other units follow a formula. Carrier Open controllers (RTU Open, WSHP Open, UPC Open...) instance calculator →

Download CSV 200 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 RTU Open v5

Integration in brief

Set the RTU Open for BACnet MS/TP with its DIP switches and rotary address, then set Occupancy Source to BAS On/Off so the BMS can command occupancy through keypad_ovrde. Write setpoints directly. Any sensor the BMS supplies (space temp, OAT, RH, CO2) goes into the system_* points at priority 16 and has to be refreshed within each point's refresh window.

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
MV 1002	occ_source	Set to 3 (BAS On/Off) to allow network occupancy	Write
MV 1001	keypad_ovrde	BAS occupancy command: occupied/unoccupied	Write
BV 9001	shutdown	Network shutdown command	Write
AV 3001	occ_cl_stpt	Occupied cooling setpoint	Write
AV 3002	occ_ht_stpt	Occupied heating setpoint	Write
MV 2002	run_status	Current system mode	Read
BV 2008	occ_status	Confirms occupied/unoccupied	Read
AV 2007	space_temp	Space temperature the unit controls to	Read
AV 1008	sa_temp	Supply air temperature	Read
BV 7008	sfan_fail_alarm	Supply fan failure alarm	Read

Enable & remote start

Occupancy Source (occ_source, MSV:1002) defaults to Always Occupied. Set it to 3 = BAS On/Off, then write keypad_ovrde (MSV:1001): 1=Inactive, 2=Occupied, 3=Unoccupied. The shutdown point (BV:9001) stops the unit from the network.

Heartbeat & communication loss

No general heartbeat. Each system point has a recommended refresh time (min/max), e.g. space temperature 1 min / 5 min, OAT 5 min / 60 min. The network value is only used while it keeps being refreshed within that window; for OAT, a lost network value raises the Outdoor Air Temp Sensor alarm and the OAT lockouts stop working.

Sensors & values from the BMS

Write system_spt (AV:1902), system_oat (AV:1901), system_rh (AV:1904), system_iaq (AV:1903), system_oaq (AV:1908) and oae (BV:1901, OA enthalpy) at BACnet priority 16, no more than once a minute. A network value overrides the local sensor while it is refreshed in time. Don't read the system point back to confirm a write, because the controller clears it after processing. Read the matching control point instead (space_temp, oa_temp, space_rh, iaq, oaq), at least 30 s after the write.

Network setup

MS/TP MAC address is set on rotary switches SW1 (tens) and SW2 (ones); valid 01-99.
Device instance is generated automatically as 16101xx (16 = Carrier vendor ID, xx = rotary address); it can be changed with an Equipment Touch.
Baud is set on SW3 DIP 1-2 (9600/19.2k/38.4k/76.8k); 76.8k is the Carrier default; 8N1 fixed.
Protocol DIP switches must be set for BACnet MS/TP and the jumper set to EIA-485; switch changes only take effect after a power cycle.
Max Masters defaults to 127 and Max Info Frames to 10 (adjustable via Equipment Touch).

Watch out for

System points must be written at priority 16; writes at any other priority are ignored.
Never write a system point more than once per minute (60 s).
Only controllers set as MS/TP masters answer Who-Is.
Some points only apply with certain options (heat pump, VFD fan, economizer, humidity sensors).

Carrier RTU Open v5 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.

200 of 200 shown

Type

Multi-state

Access

Units

Show

Carrier RTU Open v5 BACnet Points List
			Description			States
AV	3032	tempering_stpt	SA Vent / Temper Setpoint (default 65)	°F	Write
AV	1030	vfd_spd_cfg	VFD Speed Config (default %)	%/V	Write
AV	3033	heat_vfd_spd	Heating VFD Output (default 100)	%	Write
AV	83010	ht_spd_volt	Voltage Used to Set IDF VFD Heat Speed (default 4.4)	V	Write
AV	83011	max_spd_volt	Voltage Used to Set IDF VFD Maximum Speed (default 10)	V	Write
AV	83012	min_spd_volt	Voltage Used to Set IDF VFD Minimum Speed (default 5.2)	V	Write
AV	83016	sa_tempering_en	Tempering Enable (default Disable)		Write
AV	81003	vfd_spdv_test	VFD Speed Test (default 0)	V	Write
AV	2032	vfd_volt_output	Supply Fan VFD Voltage	V	Read
AV	91010	vfd_in_type	VFD Analog Input Channel Type (default 2 to 10)	Vdc	Write
AV	2003	heat_run	Active Heat Stages		Read
AV	3005	eff_cl_stpt	Effective Cool Setpoint	°F	Read
BV	7011	spt_hi_alarm	High Space Temperature		Read	0=Normal; 1=Alarm
BV	7012	spt_lo_alarm	Low Space Temperature		Read	0=Normal; 1=Alarm
AI	1006	ai_6	Input_6	°F	Read
BV	2001	sfan	Supply Fan Relay State		Read	0=Off; 1=On
BV	1003	sfan_status	Supply Fan Status		Read	0=Off; 1=On
AV	2022	econ_output	Economizer Output	%Open	Read
BV	7006	oaq_fail	Outdoor Air Quality Sensor		Read	0=Normal; 1=Alarm
AV	9011	iaq_dpr_max	DCV Max Vent Damper Pos (default 50)	%Open	Write
AVmin	2007	space_temp	Space Temperature - Prime Variable	°F	Read
AV	9004	hp_rev_cycle_lockout	HP Rev Cycle Lockout Temp (default -3)	°F	Write
AV	1901	system_oat	System Outdoor Air Temperature (default -999)	°F	Write
AV	9029	econ_purge_min	Economizer Purge Min Pos (default 40)	%Open	Write
AV	2020	comp_run	Active Compressor Stages		Read
MVmin	2002	run_status	System Mode		Read	1=Off; 2=Fan Only; 3=Economizer Cooling; 4=Cooling; 5=Heating; 6=Dehumidification; 7=Test; 8=Shutdown; 9=Unocc Free Cooling; 10=Fire Shutdown; 11=IAQ Override; 12=Pre-occ Purge; 13=IGC Override
AVmin	1008	sa_temp	Supply Air Temperature	°F	Read
AV	3013	iaq_stpt_max	DCV Max Ctrl Setpoint (default 650)	ppm	Write
AV	3011	occ_dehum_stpt	Occ Relative Humidity Setpoint (default 60)	%rh	Write
BVmin	2008	occ_status	Occupancy Status		Read	0=Unoccupied; 1=Occupied
MV	2009	start_type	Optimal Start Type (default 2)		Write	1=None; 2=Temp Compensated; 3=Learning Adaptive
AV	3004	unocc_ht_stpt	Unoccupied heat setpoint	°F	Write
AV	81001	econ_test	Economizer Test (default 0)	%Open	Write
BV	7022	sprh_sensor_fail	Space Relative Humidity Sensor		Read	0=Normal; 1=Alarm
AV	1006	stpt_adj	Setpoint Adjustment	°F	Read
AV	3006	eff_ht_stpt	Effective Heat Setpoint	°F	Read
AV	9030	econ_min_2	Low Fan Econ Min Pos (default 33)	%Open	Write
BV	7007	fire_alarm	Fire / Smoke Shutdown		Read	0=Normal; 1=Alarm
BV	7517	filter_rntm_clr	Reset Filter Alarm (default Inactive (0))		Write	0=Off; 1=On
AV	3003	unocc_cl_stpt	Unoccupied cool setpoint	°F	Write
BV	7055	zs_config_fail	ZS Sensor Configuration		Read	0=Normal; 1=Alarm
AV	1011	space_rh	Space Relative Humidity	%rh	Read
AV	1003	oa_temp	Outdoor Air Temperature	°F	Read
AV	9002	oat_cl_lockout	Cooling Lockout Temperature (default 45)	°F	Write
AV	3010	pexh_stpt	Power Exhaust Setpoint (default 50)	%Open	Write
MVmin	1001	keypad_ovrde	BAS On / Off (default 1)		Write	1=Inactive; 2=Occupied; 3=Unoccupied
AV	1903	system_iaq	System Space AQ (default -999)	ppm	Write
AV	1904	system_rh	System Space RH (default -999)	%	Write
BV	7013	comp_alarm	Compressor Status		Read	0=Normal; 1=Alarm
AV	2019	filter_service_hrs	Filter Service Alarm Timer (default 600)	hr	Write
BV	7039	iaq_sensor_fail	Indoor Air Quality Sensor		Read	0=Normal; 1=Alarm
AV	9003	oat_ht_lockout	Heating Lockout Temperature (default 65)	°F	Write
BV	2006	dehum	Dehumidification		Read	0=Inactive; 1=Active
BV	2007	aux_1	Reversing Valve Relay State		Read	0=Off; 1=On
AV	90000	ppo	Password Protected Output Variable (default 0)		Write
AV	9005	econ_min	Vent Dmpr Pos / DCV Min Pos (default 20)	%Open	Write
BV	7017	filter_alarm	Filter		Read	0=Clean; 1=Dirty
BV	7024	safety_alarm	Safety Chain		Read	0=Normal; 1=Alarm
AV	3012	unocc_dehum_stpt	Unocc Relative Humidity Setpoint (default 95)	%rh	Write
AVmin	3002	occ_ht_stpt	Occupied heat setpoint	°F	Write
BV	7020	loc_sat_sensor_fail	Supply Air Temp Sensor		Read	0=Normal; 1=Alarm
AV	2016	ovrde_time	Override Time Remaining	min	Read
BV	1013	stpt_adj_enable	Setpoint Adjustment (default Active (1))		Write	0=Disable; 1=Enable
AV	1902	system_spt	System Space Temperature (default -999)	°F	Write
AV	91006	stpt_adj_offset	Space Temperature Offset Pot	°F	Read
AV	1908	system_oaq	System Outdoor AQ (default -999)	ppm	Write
BV	7029	oat_fail	Outdoor Air Temp Sensor		Read	0=Normal; 1=Alarm
BV	7032	spt_sensor_fail	SPT Sensor		Read	0=Normal; 1=Alarm
MV	2004	fan_run	Fan / Speed		Read	1=Off; 2=Low; 3=Med; 4=High; 5=On
AV	9015	stpt_adj_range	Setpoint Adjustment Range (default 5)	Δ°F	Write
BV	1901	oae	Enthalpy (BACnet) (default Active (1))		Write	0=High; 1=Low
AV	9026	optm_start	Optimal Start (default 1)	hr	Write
AV	9006	cool_demand_level	System Cooling Demand Level		Read
AV	9036	heat_demand_level	System Heating Demand Level		Read
AV	80001	mstr_oa_temp	System OAT Master	°F	Read
AV	9023	ovr_dur	T5x Override Duration (default 1)	hr	Write
AV	81002	vfd_spd_test	VFD Speed Test (default 0)	%	Write
BI	1003	di_3	input_3		Read	0=Off; 1=On
BI	1004	di_4	input_4		Read	0=Off; 1=On
BI	1005	di_5	input_5		Read	0=Off; 1=On
BI	1008	di_8	input_8		Read	0=Off; 1=On
BI	1009	di_9	input_9		Read	0=Off; 1=On
BV	7030	air_linkage_fail	Airside Linkage		Read	0=Normal; 1=Alarm
BV	7026	ai_cfg_alarm	Analog Input Configuration		Read	0=Normal; 1=Alarm
BV	7014	comp1_rntm_alarm	Compressor 1 Runtime		Read	0=Normal; 1=Alarm
BV	2005	comp_1	Compressor 1 Relay State		Read	0=Off; 1=On
BV	81005	comp1_test	Compressor 1 Test (default Inactive (0))		Write	0=Disable; 1=Enable
BV	2004	comp_2	Compressor 2 Relay State		Read	0=Off; 1=On
BV	7015	comp2_rntm_alarm	Compressor 2 Runtime		Read	0=Normal; 1=Alarm
BV	81004	comp2_test	Compressor 2 Test (default Inactive (0))		Write	0=Disable; 1=Enable
BV	1008	comp_status	Compressor Safety Status		Read	0=Normal; 1=Trouble
BV	9002	occ_exh	Continuous Occupied Exhaust (default Inactive (0))		Write	0=No; 1=Yes
BV	1027	dcv_enable	DCV Control (default Inactive (0))		Write
BV	81006	dehum_test	Dehumidification Test (default Inactive (0))		Write	0=Disable; 1=Enable
BV	1010	door_contact_status	Door Contact Status		Read	0=Off; 1=On
BV	99001	econ_exist	Economizer Exists (default Inactive (0))		Write	0=No; 1=Yes
BV	1002	enthalpy_status	Enthalpy Status		Read	0=High; 1=Low
BV	91000	fac_test_enable	Factory Test (default Inactive (0))		Write	0=Off; 1=On
BV	91001	relay1_fac_test	Factory Test Relay 1 Control (default Inactive (0))		Write	0=Off; 1=On
BV	91002	relay2_fac_test	Factory Test Relay 2 Control (default Inactive (0))		Write	0=Off; 1=On
BV	91003	relay3_fac_test	Factory Test Relay 3 Control (default Inactive (0))		Write	0=Off; 1=On
BV	91004	relay4_fac_test	Factory Test Relay 4 Control (default Inactive (0))		Write	0=Off; 1=On
BV	91005	relay5_fac_test	Factory Test Relay 5 Control (default Inactive (0))		Write	0=Off; 1=On
BV	91006	relay6_fac_test	Factory Test Relay 6 Control (default Inactive)		Write	0=Off; 1=On
BV	91007	relay7_fac_test	Factory Test Relay 7 Control (default Inactive (0))		Write	0=Off; 1=On
BV	91008	relay8_fac_test	Factory Test Relay 8 Control (default Inactive (0))		Write	0=Off; 1=On
BV	1004	filter_status	Filter Status		Read	0=Clean; 1=Dirty
BV	1005	firedown_status	Fire Shutdown Status		Read	0=Run Enabled; 1=Shutdown
BV	81003	heat1_test	Heat 1Test (default Inactive (0))		Write	0=Disable; 1=Enable
BV	81002	heat2_test	Heat 2Test (default Inactive (0))		Write	0=Disable; 1=Enable
BV	2003	heat_1	Heat Stage 1 Relay State		Read	0=Off; 1=On
BV	2002	heat_2	Heat Stage 2 Relay State		Read	0=Off; 1=On
BV	99002	heat_type	Heat Type (default Inactive (0))		Write	0=Electric; 1=Gas
BV	81010	hi_spd_test	High Speed Fan Test (default Inactive (0))		Write	0=Disable; 1=Enable
BV	1006	humstat_status	Humidistat Input Status		Read	0=High; 1=Low
BV	1022	igcovr_status	IGC Override		Read	0=Off; 1=Active
BV	7003	loc_oat_sensor_fail	Local OAT Sensor		Read	0=Normal; 1=Alarm
BV	1007	occ_contact_status	Occupancy Contact		Read	0=Off; 1=On
BV	2010	pexh	Power Exhaust Relay State		Read	0=Off; 1=On
BV	81008	pexh_test	Power Exhaust Test (default Inactive (0))		Write	0=Disable; 1=Enable
BV	7514	comp1_rntm_clr	Reset Comp 1 Runtime Alarm (default Inactive (0))		Write	0=Run; 1=Clear
BV	7515	comp2_rntm_clr	Reset Comp 2 Runtime Alarm (default Inactive (0))		Write	0=Run; 1=Clear
BV	7510	sfan_rntm_clr	Reset Supply Fan Runtime Alarm (default Inactive (0))		Write	0=Run; 1=Clear
BV	1026	rev_vlv_type	Reversing Valve Output (default Inactive (0))		Write
BV	1025	rh_enable	RH Control (default Inactive (0))		Write
BV	1009	safety_status	Safety Chain Feedback		Read	0=Off; 1=On
BV	8000	schedule	Schedule (default 0)		Write	0=Unoccupied; 1=Occupied
BV	81000	test_enable	Service Test (default Inactive (0))		Write	0=Disable; 1=Enable
BV	7002	slidepot_alarm	Setpoint Slider		Read	0=Normal; 1=Alarm
BVmin	9001	shutdown	Shutdown (default Inactive (0))		Write	0=Inactive; 1=Active
BVmin	7008	sfan_fail_alarm	Supply Fan Failure		Read	0=Normal; 1=Alarm
BV	7009	sfan_hand_alarm	Supply Fan in Hand		Read	0=Normal; 1=Alarm
BV	7010	sfan_rntm_alarm	Supply Fan Runtime		Read	0=Normal; 1=Alarm
BV	7025	di_cfg_alarm	Switch Configuration		Read	0=Normal; 1=Alarm
BV	2011	shutdown_status	System is shut down		Read	0=No; 1=Yes
BV	80001	ntfc_ena	Unocc Free Cool (default Inactive (0))		Write	0=Disable; 1=Enable
MV	2005	link_ahu_mode	Air Source Mode		Read	1=Off; 2=Warmup; 3=Heating; 4=Cooling; 5=Freecool; 6=Pressure; 7=Evac; 8=Vent
MV	91003	comp_stages	Compressor Stages (default 2)		Write	1=One Stage; 2=Two Stages
MV	2001	mode_status	Equipment Status		Read	1=Disabled; 2=Test; 3=Run
MV	9031	fan_type	Fan Control (default 3)		Write	1=Single Speed; 2=Two Speed; 3=Variable Speed
MV	9032	fan_mode	Fan Mode (default 2)		Write	1=Auto; 2=Continuous; 3=Always On
MV	81001	ai1_function	Input 1 Function (default 1)		Write	1=No Sensor; 2=IAQ Sensor; 3=OAQ Sensor; 4=Space RH Sensor
MV	81002	ai2_function	Input 2 Function (default 1)		Write	1=No Sensor; 2=IAQ Sensor; 3=OAQ Sensor; 4=Space RH Sensor
MV	81003	di3_function	Input 3 Function (default 2)		Write	1=No Function; 2=Compressory Safety; 3=Fan Status; 4=Filter Status; 5=Remote Occupancy; 6=Door Contact
MV	81013	di3_type	Input 3 Switch Configuration (default 1)		Write	1=NO; 2=NC
MV	81005	di5_function	Input 5 Function (default 2)		Write	1=No Function; 2=Fire Shutdown; 3=Fan Status; 4=Filter Status; 5=Remote Occupancy; 6=Door Contact
MV	81015	di5_type	Input 5 Switch Configuration (default 1)		Write	1=NO; 2=NC
MV	81008	di8_function	Input 8 Function (default 2)		Write	1=No Function; 2=Enthalpy Switch; 3=Fan Status; 4=Filter Status; 5=Remote Occupancy; 6=Door Contact
MV	81018	di8_type	Input 8 Switch Configuration (default 1)		Write	1=NO; 2=NC
MV	81009	di9_function	Input 9 Function (default 2)		Write	1=No Function; 2=HumidiStat; 3=Fan Status; 4=Filter Status; 5=Remote Occupancy; 6=Door Contact
MV	81019	di9_type	Input 9 Switch Configuration (default 1)		Write	1=NO; 2=NC
MV	91004	heat_stages	Number Of Heat Stages (default 2)		Write	1=1; 2=2; 3=0
MVmin	1002	occ_source	Occupancy Source (default 1)		Write	1=Always Occupied; 2=BACnet Schedule; 3=BAS On/Off; 4=Remote Occ Input
MV	9001	spt_type	Space sensor type (default 1)		Write	1=T55; 2=T56; 3=SPT Sensor; 4=None
MV	2003	spt_status	Space Temp Source		Read	1=Sensor Failure; 2=SPT Sensor; 3=T55 / T56; 4=Network; 5=Airside Linkage; 6=Locked Value
MV	9018	unit_type	Unit Type (default 2)		Write	1=Heat / Cool; 2=LC WeatherExpert; 3=HP O/B Ctrl; 4=HP Y1/W1 Ctrl
BV	7051	zst_sensor_fail	ZS Temp Sensor		Read	0=Normal; 1=Alarm
BV	7054	econ_opr	Economizer Operation		Read	0=Normal; 1=Fault Detected
BV	7056	spt_alrm_status	Space Temperature Alarm Status		Read	0=Normal; 1=Alarm
AI	1	zone_temp_zone_temp	SPT Sensor	°F	Read
AV	1	zone_temp_override_time_remaining	SPT Sensor	min	Read
AI	1010	ai_10	input_10	°F	Read
AV	91001	ao1_fac_test	Factory Test Analog 1 Control (default 0)	%	Write
AV	9008	oat_ec_lockout	Economizer High OAT Lockout Temp (default 75)	°F	Write
AV	83004	sat_ht_max	Maximum Heating SAT (default 120)	°F	Write
AV	2018	comp2_rntm	Compressor 2 Runtime	hr	Read
AV	2611	link_max_dmpr	Linkage Max Damper Position	%	Read
AV	2608	link_sat	Air Source Supply Air Temp	°F	Read
AV	3026	max_vfd_spd	Max VFD Output (default 100)	%	Write
AV	3028	dehum_min_vfd	Dehum Min VFD Output (default 100)	%	Write
AV	2609	link_ahu_oat	Air Source Outdoor Air Temp	°F	Read
AV	83010	stg_3_sat	Stage 3 SAT Stpt (default 56)	°F	Write
AV	83008	stg_1_sat	Stage 1 SAT Stpt (default 57)	°F	Write
AV	3025	oat_auxht_lockout	HP Aux Heat Lockout Temp (default 40)	°F	Write
AI	1001	ai_1	input_1		Read
AV	91002	ao2_fac_test	Factory Test Analog 2 Control (default 0)	V	Write
AV	83007	comp2_service_hrs	Compressor 2 Service Alarm Timer (default 0)	hr	Write
AV	83006	comp1_service_hrs	Compressor 1 Service Alarm Timer (default 0)	hr	Write
AV	2017	comp1_rntm	Compressor 1 Runtime	hr	Read
AV	3027	min_vfd_spd	Min VFD Output (default 40)	%	Write
AV	83009	stg_2_sat	Stage 2 SAT Stpt (default 57)	°F	Write
AI	1012	slidepot_volts	slidepot voltage reading		Read
AV	2015	filter_rntm	Filter Runtime	hr	Read
AV	9024	fan_delay_off	Fan Off Delay (default 90)	seconds	Write
AI	1007	ai_7	input_7	°F	Read
AI	1011	ai_11	input_11		Read
AI	1002	ai_2	input_2		Read
AV	83003	sat_cl_min	Minimum Cooling SAT (default 50)	°F	Write
AV	9007	start_delay	Power Fail Restart Delay (default 5)	seconds	Write
AV	83005	sfan_service_hrs	Supply Fan Service Alarm Timer (default 0)	hr	Write
AV	2014	sfan_rntm	Supply Fan Runtime	hr	Read
AV	1009	iaq	Indoor Air Quality CO2 (ppm)	ppm	Read
AV	2027	vfd_output	Supply Fan VFD	%	Read
BV	7005	iaq_alarm	Indoor Air Quality		Read	0=Normal; 1=Alarm
BV	7004	sat_alarm	Supply Air Temperature		Read	0=Normal; 1=Alarm
BV	7018	sprh_hi_alarm	Space Relative Humidity		Read	0=Normal; 1=Alarm
BV	7001	spt_fail	Space Temp Sensor		Read	0=Normal; 1=Alarm
AV	1012	oaq	Outdoor Air Quality CO2 (ppm)	ppm	Read
BV	7050	igc_alarm	Gas Valve		Read	0=Normal; 1=Alarm
AVmin	3001	occ_cl_stpt	Occupied cool setpoint	°F	Write

Object ID lookup: Carrier RTU Open v5 point IDs by name

AV3032tempering_stpt
AV1030vfd_spd_cfg
AV3033heat_vfd_spd
AV83010ht_spd_volt
AV83011max_spd_volt
AV83012min_spd_volt
AV83016sa_tempering_en
AV81003vfd_spdv_test
AV2032vfd_volt_output
AV91010vfd_in_type
AV2003heat_run
AV3005eff_cl_stpt
BV7011spt_hi_alarm
BV7012spt_lo_alarm
AI1006ai_6
BV2001sfan
BV1003sfan_status
AV2022econ_output
BV7006oaq_fail
AV9011iaq_dpr_max
AV2007space_temp
AV9004hp_rev_cycle_lockout
AV1901system_oat
AV9029econ_purge_min
AV2020comp_run
MV2002run_status
AV1008sa_temp
AV3013iaq_stpt_max
AV3011occ_dehum_stpt
BV2008occ_status
MV2009start_type
AV3004unocc_ht_stpt
AV81001econ_test
BV7022sprh_sensor_fail
AV1006stpt_adj
AV3006eff_ht_stpt
AV9030econ_min_2
BV7007fire_alarm
BV7517filter_rntm_clr
AV3003unocc_cl_stpt
BV7055zs_config_fail
AV1011space_rh
AV1003oa_temp
AV9002oat_cl_lockout
AV3010pexh_stpt
MV1001keypad_ovrde
AV1903system_iaq
AV1904system_rh
BV7013comp_alarm
AV2019filter_service_hrs
BV7039iaq_sensor_fail
AV9003oat_ht_lockout
BV2006dehum
BV2007aux_1
AV90000ppo
AV9005econ_min
BV7017filter_alarm
BV7024safety_alarm
AV3012unocc_dehum_stpt
AV3002occ_ht_stpt
BV7020loc_sat_sensor_fail
AV2016ovrde_time
BV1013stpt_adj_enable
AV1902system_spt
AV91006stpt_adj_offset
AV1908system_oaq
BV7029oat_fail
BV7032spt_sensor_fail
MV2004fan_run
AV9015stpt_adj_range
BV1901oae
AV9026optm_start
AV9006cool_demand_level
AV9036heat_demand_level
AV80001mstr_oa_temp
AV9023ovr_dur
AV81002vfd_spd_test
BI1003di_3
BI1004di_4
BI1005di_5
BI1008di_8
BI1009di_9
BV7030air_linkage_fail
BV7026ai_cfg_alarm
BV7014comp1_rntm_alarm
BV2005comp_1
BV81005comp1_test
BV2004comp_2
BV7015comp2_rntm_alarm
BV81004comp2_test
BV1008comp_status
BV9002occ_exh
BV1027dcv_enable
BV81006dehum_test
BV1010door_contact_status
BV99001econ_exist
BV1002enthalpy_status
BV91000fac_test_enable
BV91001relay1_fac_test
BV91002relay2_fac_test
BV91003relay3_fac_test
BV91004relay4_fac_test
BV91005relay5_fac_test
BV91006relay6_fac_test
BV91007relay7_fac_test
BV91008relay8_fac_test
BV1004filter_status
BV1005firedown_status
BV81003heat1_test
BV81002heat2_test
BV2003heat_1
BV2002heat_2
BV99002heat_type
BV81010hi_spd_test
BV1006humstat_status
BV1022igcovr_status
BV7003loc_oat_sensor_fail
BV1007occ_contact_status
BV2010pexh
BV81008pexh_test
BV7514comp1_rntm_clr
BV7515comp2_rntm_clr
BV7510sfan_rntm_clr
BV1026rev_vlv_type
BV1025rh_enable
BV1009safety_status
BV8000schedule
BV81000test_enable
BV7002slidepot_alarm
BV9001shutdown
BV7008sfan_fail_alarm
BV7009sfan_hand_alarm
BV7010sfan_rntm_alarm
BV7025di_cfg_alarm
BV2011shutdown_status
BV80001ntfc_ena
MV2005link_ahu_mode
MV91003comp_stages
MV2001mode_status
MV9031fan_type
MV9032fan_mode
MV81001ai1_function
MV81002ai2_function
MV81003di3_function
MV81013di3_type
MV81005di5_function
MV81015di5_type
MV81008di8_function
MV81018di8_type
MV81009di9_function
MV81019di9_type
MV91004heat_stages
MV1002occ_source
MV9001spt_type
MV2003spt_status
MV9018unit_type
BV7051zst_sensor_fail
BV7054econ_opr
BV7056spt_alrm_status
AI1zone_temp_zone_temp
AV1zone_temp_override_time_remaining
AI1010ai_10
AV91001ao1_fac_test
AV9008oat_ec_lockout
AV83004sat_ht_max
AV2018comp2_rntm
AV2611link_max_dmpr
AV2608link_sat
AV3026max_vfd_spd
AV3028dehum_min_vfd
AV2609link_ahu_oat
AV83010stg_3_sat
AV83008stg_1_sat
AV3025oat_auxht_lockout
AI1001ai_1
AV91002ao2_fac_test
AV83007comp2_service_hrs
AV83006comp1_service_hrs
AV2017comp1_rntm
AV3027min_vfd_spd
AV83009stg_2_sat
AI1012slidepot_volts
AV2015filter_rntm
AV9024fan_delay_off
AI1007ai_7
AI1011ai_11
AI1002ai_2
AV83003sat_cl_min
AV9007start_delay
AV83005sfan_service_hrs
AV2014sfan_rntm
AV1009iaq
AV2027vfd_output
BV7005iaq_alarm
BV7004sat_alarm
BV7018sprh_hi_alarm
BV7001spt_fail
AV1012oaq
BV7050igc_alarm
AV3001occ_cl_stpt

Integration notes

System points (system_spt, system_oat, system_rh, system_iaq, etc.) must be written at BACnet priority 16 and no more than once per minute; -999 means no network value.
Some points only apply to certain unit configurations (heat pump, VFD fan, economizer, humidity options).
Several display names in the source table are just 'Setpoint'; the BACnet object name tells you which one (e.g. unocc_ht_stpt).
Instances use Carrier's numbering scheme (e.g. AV:1901, BV:7011), not small sequential numbers.
AV:83010 is listed twice in the source (ht_spd_volt and stg_3_sat); verify on the controller which one is present.
Each point also has a Modbus register in the same table; only the BACnet side is captured here.

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 RTU Open v5 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 RTU Open v5

How many BACnet points does the Carrier RTU Open v5 have?

This list has 200 BACnet objects: 8 analog inputs, 80 analog values, 5 binary inputs, 83 binary values, 24 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Carrier RTU Open v5 BACnet points are writable?

104 of the 200 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 RTU Open v5 BACnet documentation?

The source is RTU Open v5 Integration Guide (Appendix A: Network Points List) (11-808-697-01), revision 2019-11-19, published free by Carrier at https://www.shareddocs.com/hvac/docs/1000/Public/04/11-808-697-01.pdf.

What are the minimum BACnet points to integrate the Carrier RTU Open v5?

Start with MV 1002 occ_source (Set to 3 (BAS On/Off) to allow network occupancy); MV 1001 keypad_ovrde (BAS occupancy command: occupied/unoccupied); BV 9001 shutdown (Network shutdown command); AV 3001 occ_cl_stpt (Occupied cooling setpoint); AV 3002 occ_ht_stpt (Occupied heating setpoint); MV 2002 run_status (Current system mode); BV 2008 occ_status (Confirms occupied/unoccupied); AV 2007 space_temp (Space temperature the unit controls to); AV 1008 sa_temp (Supply air temperature); BV 7008 sfan_fail_alarm (Supply fan failure alarm).

How do I enable BMS control of the Carrier RTU Open v5?

Does the Carrier RTU Open v5 need a BACnet heartbeat or have a communication timeout?

Can the BMS supply sensor values to the Carrier RTU Open v5?

How do I check these points on the real RTU Open v5?

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: RTU Open v5 Integration Guide (Appendix A: Network Points List) · 11-808-697-01 · rev. 2019-11-19. Object names, instances and units are reproduced as published; descriptions are our own.

Carrier RTU Open v5 BACnet points list

BMS integration notes: Carrier RTU Open v5

Minimum points to map

Enable & remote start

Heartbeat & communication loss

Sensors & values from the BMS

Network setup

Watch out for

Carrier RTU Open v5 BACnet objects

Integration notes

Questions about the Carrier RTU Open v5

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Carrier 62H Dedicated Outdoor Air Unit (Rev. K controls)

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Carrier AquaEdge 19DV (PIC6)

Carrier AquaEdge 19MV (PIC6)

Carrier AquaEdge 19XR (PIC 5)

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Carrier AquaForce 30XV 140-500 Series B, Carrier Controller (2019 software, 30XV-3T)

Carrier AquaSnap 30MP (PIC6 Carrier Controller)

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Carrier AquaSnap 30RC 010-060

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Carrier System Management Sequencer (SMS) Option 275A for modular R-290 air-source heat pumps

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Carrier W2W Open

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