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Packaged rooftop unit controller (BACnet option) · BACnet points list

Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) BACnet points list

Updated 12 November 2026

Short answer

This is the ComfortLink 7.x generation of the 48/50P large rooftop. BACnet MS/TP comes from a UPC Open controller in its own enclosure below the main control box, which reads the ComfortLink board over CCN. The list has 285 AVs and BVs: occupancy, setpoints, air temperatures, pressures and CFM, building and duct static pressure, compressor relays and timeguards, economizer, demand levels, Humidi-MiZer and VFD values, thermostat inputs, alarms and spare user values.

This page lists 285 BACnet objects for the Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) — 121 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
Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option)
Equipment
Packaged rooftop unit controller (BACnet option)
Equipment type
Rooftop units, AHUs & DOAS
BACnet objects
285 (121 writable)
Transport
BACnet MS/TP
Firmware
ComfortLink 7.x
Default device instance
Network number 16101 followed by the MAC address (MAC 20 gives 1610120)
Also known as
48/50P2, 48/50P3, 48/50P4, 48/50P5, 48P2, 50P2, 48/50P030-100, Weathermaster 48/50P, ComfortLink 7.x, UPC Open, 48/50P-8T, 48_50P-8T
Source document
Weathermaster 48/50P2,P3,P4,P5030-100 Single Package Large Rooftop Units with ComfortLink Version 7.X Controls - Controls, Start-Up, Operation, Service and Troubleshooting (Appendix F: UPC Open Controller, Table AP Network Points List) · 48/50P-8T · rev. 8-19
Download CSV 285 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 Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option)

Integration in brief

The BMS talks BACnet MS/TP to the UPC Open, which reads and writes the ComfortLink control over CCN. Clear Local Machine Disable, set the CCN schedule number for the occupancy source you want, then write occupancy, setpoints and (for VAV) the supply air setpoint; read HVAC mode, temperatures and alarm state. Values the BMS feeds in (space, return or outdoor temperature, RH, CO2) are forces that clear if not refreshed.

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 2008occ_status_1Occupied? (0 = no, 1 = yes); writableWrite
AV 3001occ_cl_stpt_1Occupied cooling setpointWrite
AV 3002occ_ht_stpt_1Occupied heating setpointWrite
AV 3007sa_temp_stpt_1Supply air setpoint (VAV units)Write
AV 1022hvac_mode_1HVAC mode as a numberRead
BV 2001sfan_1Supply fan relay on/offRead
AV 43ctrltemp_1Control temperature (RAT, SPT or zone)Read
AV 10sat_1Supply air temperature leaving the fanRead
BV 9alm_1Unit alarm stateRead
BV 105comm_lost_alm_1UPC lost CCN communication with the unitRead

Enable & remote start

The unit ships with Local Machine Disable (Service Test > STOP, BV 59 unitstop_1) set to Yes; set it to No before the unit runs. Occupancy follows the ComfortLink CCN schedule number (Configuration > CCN > SC.OV > SCH.N): 0 = always occupied, 1 = local schedule (default), 65-99 = a CCN schedule. The points list makes Occupied? (BV 2008) writable, but the manual does not describe how a write interacts with SCH.N; test it on site.

Heartbeat & communication loss

The manual says forces at CCN priority 7 clear unless rewritten in time: outside air temperature, outside RH, outside air quality and static pressure reset after 30 minutes, return air and space temperature after 3 minutes.

Sensors & values from the BMS

Space Temperature (AV 137), Return Air Temperature (AV 135), Outside Air Temperature (AV 1003), Outside Air RH (AV 119), IAQ (AV 1009) and OAQ (AV 113) are writable. Refresh them within the force timeouts (3 min for space and return temperature, 30 min for outdoor values).

Network setup

Watch out for

Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) 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.

285 of 285 shown
Type
AnalogBinary
Access
Show
Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) BACnet Points List
DescriptionStates
AV9dem_lim_1Active Demand Limit%Write
AVmin10sat_1Air Temp Lvg Supply Fan°FRead
AV11cct_1Air Temp Lvg Evap Coil°FRead
AV12b1_cpos_1BP 1 Command Position%Read
AV13b2_cpos_1BP 2 Command Position%Read
AV14bldgpmax_1BP VFD Maximum Speed%Write
AV15sasptemp_1Temper Supply Air Setpt°FWrite
AV16byp_exv_1Bypass EXV Position%Read
AV17bpso_1BP Setpoint Offsetin H2OWrite
AV18cmpa1cap_1Compressor A1 Capacity%Read
AV19hr_a3_1Compressor A3 Run HourshrRead
AV20cy_a3_1Compressor A3 StartsRead
AV21cmpa3str_1Compressor A3 StrikesRead
AV22smz_1Capacity Load FactorRead
AV23z_gain_1Capacity Threshold AdjWrite
AV24hr_a1_1Compressor A1 Run HourshrRead
AV25cy_a1_1Compressor A1 StartsRead
AV26cmpa1str_1Compressor A1 StrikesRead
AV27hr_b3_1Compressor B3 Run HourshrRead
AV28hr_a2_1Compressor A2 Run HourshrRead
AV29cy_a2_1Compressor A2 StartsRead
AV30cmpa2str_1Compressor A2 StrikesRead
AV31cy_b3_1Compressor B3 StartsRead
AV32hr_b1_1Compressor B1 Run HourshrRead
AV33cy_b1_1Compressor B1 StartsRead
AV34cmpb1str_1Compressor B1 StrikesRead
AV35cmpb3str_1Compressor B3 StrikesRead
AV36hr_b2_1Compressor B2 Run HourshrRead
AV37cy_b2_1Compressor B2 StartsRead
AV38cmpb2str_1Compressor B2 StrikesRead
AV39cond_exv_1Condenser EXV Position%Read
AV40oatlcomp_1Compressor Lockout Temp°FWrite
AV41ecn2cpos_1Econ Command Position%Write
AV42ecmincfm_1Econo Current Min. CFMCFMRead
AVmin43ctrltemp_1Ctl.Temp RAT,SPT or ZONERead
AV44htsg_cap_1Current Running Capacity (Heat)%Read
AV45ecminpos_1Econo Current Min. Pos.%Read
AV46oacfmmax_1Economizer Min.FlowCFMWrite
AV47deltacfm_1Fan Track Control D.CFMCFMRead
AV48dcfm_ram_1Fan Track Internal RAMCFMWrite
AV49dhcoolsp_1Dehumidify Cool Setpoint°FWrite
AV50dhrelhsp_1Dehumidify RH Setpoint%Write
AV51dcfm_max_1Fan Track Max ClampCFMWrite
AV52dcfm_adj_1Fan Track Max CorrectionCFMWrite
AV53dlswsp1_1Demand Limit Sw.1 Setpt.%Write
AV54dlswsp2_1Demand Limit Sw.2 Setpt.%Write
AV55htclcpos_1Ht.Coil Command Position%Read
AV56daq_1Diff.Air Quality in PPMRead
AV57hmzrcapc_1HumidiMiZer Capacity%Read
AV58oacfmmin_1IAQ Demand Vent Min.FlowCFMWrite
AV59dmdlcoff_1Dmd Level(-) Low Cool OFFΔ°FWrite
AV60dmdlhoff_1Dmd Level(-) Low Heat OFFΔ°FWrite
AV61dmdhcon_1Dmd Level(+) Hi Cool ONΔ°FWrite
AV62dmdhhon_1Dmd Level(+) Hi Heat ONΔ°FWrite
AV63dmdlcon_1Dmd Level Low Cool ONΔ°FWrite
AV64dmdlhon_1Dmd Level Low Heat ONΔ°FWrite
AV65htmg_cap_1Modulating Gas Capacity%Read
AV66oacfm_1Outside Air CFMCFMRead
AV67econocmd_1Economizer Act.Cmd Pos%Write
AV68econpnt_1Economizer Control Point°FRead
AV69racfm_1Return Air CFMCFMRead
AV70economax_1Economizer Max.Position%Write
AV71spe_1Space EnthalpyRead
AV72sprh_1Space Relative Humidity%Write
AV73sph_1SP High Alert LimitWrite
AV74spl_1SP Low Alert LimitWrite
AV75htsgcalc_1Staged Gas Capacity Calc%Read
AV76edt_1Evaporator Discharge Tmp°FRead
AV77fan_mode_1Fan ModeWrite
AV78sacfm_1Supply Air CFMCFMRead
AV79vfd1amps_1VFD1 Actual Motor AmpsARead
AV80vfd1freq_1VFD1 Actual Motor FreqRead
AV81vfd1pwr_1VFD1 Actual Motor PowerRead
AV82vfd1rpm_1VFD1 Actual Motor RPMRead
AV83hcsp_gap_1Heat-Cool Setpoint GapΔ°FWrite
AV84vfd1kwh_1VFD1 Cumulative kWhRead
AV85saspheat_1Heating Supply Air Setpt°FWrite
AV86vfd1runt_1VFD1 Cumulative Run TimehrRead
AV87vfd1vdc_1VFD1 DC Bus VoltageVRead
AV88vfd1lfc_1VFD1 Last Fault CodeRead
AV89vfd1vout_1VFD1 Output VoltageVRead
AV90vfd1stat_1VFD1 Status Word 1Read
AV91vfd1temp_1VFD1 Transistor Temp (C)Read
AV92vfd2amps_1VFD2 Actual Motor AmpsARead
AV93vfd2freq_1VFD2 Actual Motor FreqRead
AV94vfd2pwr_1VFD2 Actual Motor PowerRead
AV95vfd2rpm_1VFD2 Actual Motor RPMRead
AV96vfd2kwh_1VFD2 Cumulative kWhRead
AV97vfd2runt_1VFD2 Cumulative Run TimehrRead
AV98iaqptime_1IAQ Purge DurationminWrite
AV99vfd2vdc_1VFD2 DC Bus VoltageVRead
AV100vfd2lfc_1VFD2 Last Fault CodeRead
AV101iaqpntlo_1IAQ Purge OAT Lockout°FWrite
AV102vfd2vout_1VFD2 Output VoltageVRead
AV103vfd2stat_1VFD2 Status Word 1Read
AV104vfd2temp_1VFD2 Transistor Temp (C)Read
AV105bldgpmin_1VFD/Act. Min. Speed/Pos.%Write
AV112oaqlock_1OAQ Lockout ValueWrite
AV113oaq_1OAQ - PPM Outdoor CO2Write
AV114occl_end_1Occupied Cool Mode EndRead
AV115occlstrt_1Occupied Cool Mode StartRead
AV116ocht_end_1Occupied Heat Mode EndRead
AV117ochtstrt_1Occupied Heat Mode StartRead
AV118oa_humr_1Outside Air Humidity RatioRead
AV119oarh_1Outside Air Relative Humidity%Write
AV120otl_1Override Time LimithrWrite
AV122pes1_1Power Exhaust On Setp.1%Write
AV123pes2_1Power Exhaust On Setp.2%Write
AV131limt_1Reset LimitΔ°FWrite
AV132rtio_1Reset RatioWrite
AV133rae_1Return Air EnthalpyRead
AV134rarh_1Return Air Relative Humidity%Write
AV135rat_1Return Air Temperature°FWrite
AV137spt_1Space Temperature°FWrite
AV138spto_1Space Temperature OffsetΔ°FWrite
AV139spto_rng_1Space Temp Offset RangeWrite
AV143sprlimit_1SP Reset LimitWrite
AV144sprratio_1SP Reset RatioWrite
AV150lat1sgas_1Staged Gas LAT 1°FRead
AV151lat2sgas_1Staged Gas LAT 2°FRead
AV152lat3sgas_1Staged Gas LAT 3°FRead
AV153lat_sgas_1Staged Gas LAT Sum°FRead
AV154limswtmp_1Staged Gas Limit Sw Temp°FRead
AV156sprstcfg_1Stat. Pres. Reset ConfigWrite
AV157spreset_1Static Pressure ResetWrite
AV158sasprset_1Supply Air Setpnt. ResetΔ°FWrite
AV159tcstcool_1Temp Comp Start Cool FactorminWrite
AV160tcstheat_1Temp Comp Start Heat FactorminWrite
AV161tempcool_1Tempering in Cool SASP°FWrite
AV162temppurg_1Tempering Purge SASP°FWrite
AV163tempvocc_1Tempering Vent Occ SASP°FWrite
AV164tempvunc_1Temper Vent Unocc°FWrite
AV166uefcntlo_1Un.Ec.Free Cool OAT Lock°FWrite
AV168uccl_end_1Unoccupied Cool Mode EndRead
AV169ucclstrt_1Unoccupied Cool Mode StartRead
AV170ucht_end_1Unoccupied Heat Mode EndRead
AV171uchtstrt_1Unoccupied Heat Mode StartRead
AV172uefc_cfg_1Unoc Econ Free Cool CfgWrite
AV173uefctime_1Unoc Econ Free Cool TimeminWrite
AV180vavocoff_1VAV Occ. Cool Off DeltaΔ°FWrite
AV181vavocon_1VAV Occ. Cool On DeltaΔ°FWrite
AV183dhvraoff_1Vent Reheat RAT OffsetΔ°FWrite
AV184dhvht_sp_1Vent Reheat Setpoint°FWrite
AV186bldgpfso_1VFD/Act. Fire Speed/Pos.%Write
AV187statpfso_1VFD-IGV Fire Speed Override%Write
AV188statpmax_1VFD Maximum Speed%Write
AV189statpmin_1VFD Minimum Speed%Write
AV1003oat_1Outside Air Temperature°FWrite
AV1009iaq_1IAQ - PPM Indoor CO2Write
AV1016static_press_1Static Pressurein H2ORead
AVmin1022hvac_mode_1HVAC Mode Numerical FormRead
AV1023cool_capacity_1Current Running Capacity%Read
AV1024cool_ctrl_point_1Cooling Control Point°FRead
AV1025heat_ctrl_point_1Heating Control PointRead
AV1027lvg_air_temperature_1Leaving Air Temperature°FRead
AV1028econ_pos_1Economizer Act. Curr. Pos%Read
AV1030ra_temp_1Controlling Return Air Temp°FWrite
AV1070bldg_statis_press_1Building Pressurein H2ORead
AV1500ma_temp_1Mixed Air Temperature°FRead
AV1600suction_press_a_1Cir A Suction PressurepsigRead
AV1601discharge_press_a_1Cir A Discharge PressurepsigRead
AV1602sat_cond_temp_a_1Cir A Sat. Condensing Temperature°FRead
AV1603sat_suction_temp_a_1Cir A Sat. Suction Temperature°FRead
AV1604suction_press_b_1Cir B Suction PressurepsigRead
AV1605discharge_press_b_1Cir B Discharge PressurepsigRead
AV1606sat_cond_temp_b_1Cir B Sat. Condensing Temperature°FRead
AV1607sat_suction_temp_b_1Cir B Sat. Suction Temperature°FRead
AV2003heat_run_1Requested Heat StageRead
AV2007space_temp_1Controlling Space Temp°FWrite
AV2050sf_vfd_output_1Supply Fan VFD Speed%Read
AV2075ef_vfd_output_1Exhaust Fan VFD Speed%Read
AV2901user_analog_1_1User Defined Analog 1Write
AV2902user_analog_2_1User Defined Analog 2Write
AV2903user_analog_3_1User Defined Analog 3Write
AV2904user_analog_4_1User Defined Analog 4Write
AV2905user_analog_5_1User Defined Analog 5Write
AVmin3001occ_cl_stpt_1Cooling Occupied Setpoint°FWrite
AVmin3002occ_ht_stpt_1Heating Occupied Setpoint°FWrite
AV3003unocc_cl_stpt_1Cooling Unoccupied Setpoint°FWrite
AV3004unocc_ht_stpt_1Heating Unoccupied Setpoint°FWrite
AVmin3007sa_temp_stpt_1Supply Air Setpoint°FWrite
AV3050sa_static_stpt_1Static Pressure Setpointin H2OWrite
AV3070bldg_press_stpt_1Building Pressure Setp.in H2OWrite
AV4005econ_min_1Economizer Min.Position%Write
AV9006cool_demand_level_1System Cooling Demand LevelRead
AV9008econ_oat_lockout_1High OAT Lockout Temp°FWrite
AV9036heat_demand_level_1System Heating Demand LevelRead
AV80001mstr_oa_temp_1System OAT Master°FRead
BV3circahps_1Circ A High Press.SwitchRead
BV5schedule_1Local ScheduleRead
BV7dem_lmt_act_1System Demand LimitingRead
BVmin9alm_1Alarm StateRead
BV10capmode_1Capacity Clamp ModeRead
BV11igcfan_1Fan request from IGCRead
BV12circbhps_1Circ B High Press.SwitchRead
BV13cmpa3_1Compressor A3 RelayRead
BV14cmpb3_1Compressor B3 RelayRead
BV15condfan1_1Condenser Fan Output 1Read
BV16cmpa1_1Compressor A1 RelayRead
BV17cmpa2_1Compressor A2 RelayRead
BV18cmpb1_1Compressor B1 RelayRead
BV19cmpb2_1Compressor B2 RelayRead
BV20cool_off_1Cool Mode Not In Effect?Read
BV21condfan2_1Condenser Fan Output 2Read
BV22sfonstat_1Supply Fan not on 30s ?Read
BV23condfan3_1Condenser Fan Output 3Read
BV24condfan4_1Condenser Fan Output 4Read
BV25dbc_stat_1DBC - OAT Lockout?Read
BV26modeadcv_1DCV Resetting Min PosRead
BV27ddbcstat_1DDBC- OAT > RAT Lockout?Read
BV28dec_stat_1DEC - Diff.Enth.Lockout?Read
BV29dhdisabl_1Dehumid. Disabled Econ.?Read
BV30dhdiscin_1Dehumidify InputWrite
BV31modedmlt_1Demand Limit In EffectRead
BV32dew_stat_1DEW - OA Dewpt.Lockout?Read
BV34econunav_1Econ Act. Unavailable?Read
BV35dhecdisa_1Econ disable in DH mode?Write
BV36ecactive_1Economizer Active?Read
BV37modeoccp_1Currently OccupiedRead
BV38econforc_1Economizer Forced ?Read
BV39mode_occ_1Currently Occupied ?Read
BV40enth_1Enth. Switch Read High ?Write
BV41frz_1Freeze Status SwitchWrite
BV42econheld_1Econ Recovery Hold Off?Read
BV44edt_stat_1EDT Sensor Bad ?Read
BV45emstop_1Emergency StopWrite
BV46humidrly_1Humidifier RelayRead
BV47hum3wval_1HumidiMiZer 3-way ValveRead
BV48pps_1Plenum Press.Safety Sw.Write
BV49pe1_1Power Exhaust Relay 1Read
BV50sfs_shut_1Fan Fail Shuts Down UnitWrite
BV51pe2_1Power Exhaust Relay 2Read
BV52hs1_1Heat Relay 1Read
BV53hs2_1Heat Relay 2Read
BV54spt_over_1SPT Override Enabled ?Write
BV55limtmode_1Hi Limit Switch Tmp ModeRead
BV56modeiqpg_1IAQ Pre-Occ Purge ActiveRead
BV58latcmode_1LAT Cutoff ModeRead
BV59unitstop_1Local Machine DisableWrite
BV61low_temp_1Low Temp Cap OverrideRead
BV63modelock_1Mech Cooling Locked OutRead
BV67oaecstat_1OAEC- OA Enth Lockout?Read
BV68oaqlockd_1OAQ Lockout In Effect ?Read
BV69oat_stat_1OAT Sensor Bad ?Read
BV70htoccena_1Occupied Heating EnabledWrite
BV75pulldown_1Pull Down Cap OverrideRead
BV76hs3_1Relay 3 W1 Gas Valve 2Read
BV77hs4_1Relay 4 W2 Gas Valve 2Read
BV78hs5_1Relay 5 W1 Gas Valve 3Read
BV79hs6_1Relay 6 W2 Gas Valve 3Read
BV81rmtin_1Remote Input StateWrite
BV86slo_chng_1Slow Change Cap OverrideRead
BV87softstop_1Soft Stop RequestWrite
BV93modesars_1Supply Air ResetRead
BV95sfs_1Supply Fan Status SwitchWrite
BV96modetcst_1Temp Compensated StartRead
BV97modetovr_1Timed Override In EffectRead
BV98overlast_1Timed-Override in EffectRead
BVmin105comm_lost_alm_1Element Communications AlarmRead
BV127element_alarm_1Equipment AlarmRead
BV1005firedown_status_1Fire Shutdown InputWrite
BV1006dmd_sw1_1Demand Limit Switch 1Write
BV1007dmd_sw2_1Demand Limit Switch 2Write
BV1017y1_input_1Thermostat Y1 InputWrite
BV1018y2_input_1Thermostat Y2 InputWrite
BV1019w1_input_1Thermostat W1 InputWrite
BV1020w2_input_1Thermostat W2 InputWrite
BV1021g_input_1Thermostat G InputWrite
BV1026heat_interlock_relay_1Heat Interlock RelayWrite
BV1050iaq_status_1IAQ - Discrete InputWrite
BV1052filter_status_1Filter Status InputWrite
BV1060smk_evac_1Evacuation InputWrite
BV1061smk_press_1Pressurization InputWrite
BV1062smk_purg_1Smoke Purge InputWrite
BVmin2001sfan_1Supply Fan RelayRead
BV2004sfan_forc_1Supply Fan RequestWrite
BVmin2008occ_status_1Occupied?Write
BV2014aux_relay_1Remote Alarm/Aux RelayWrite
BV2911user_binary_1_1User Defined Binary 1Write
BV2912user_binary_2_1User Defined Binary 2Write
BV2913user_binary_3_1User Defined Binary 3Write
BV2914user_binary_4_1User Defined Binary 4Write
BV2915user_binary_5_1User Defined Binary 5Write
BV2999element_stat_1Element Comm StatusRead
BV7030air_linkage_fail_1Airside Linkage AlarmRead
Object ID lookup: Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop 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 Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) 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 Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option)

How many BACnet points does the Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) have?

This list has 285 BACnet objects: 188 analog values, 97 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) BACnet points are writable?

121 of the 285 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 Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) BACnet documentation?

The source is Weathermaster 48/50P2,P3,P4,P5030-100 Single Package Large Rooftop Units with ComfortLink Version 7.X Controls - Controls, Start-Up, Operation, Service and Troubleshooting (Appendix F: UPC Open Controller, Table AP Network Points List) (48/50P-8T), revision 8-19, published free by Carrier at https://www.shareddocs.com/hvac/docs/1005/Public/03/48_50P-8T.pdf.

What are the minimum BACnet points to integrate the Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option)?

Start with BV 2008 occ_status_1 (Occupied? (0 = no, 1 = yes); writable); AV 3001 occ_cl_stpt_1 (Occupied cooling setpoint); AV 3002 occ_ht_stpt_1 (Occupied heating setpoint); AV 3007 sa_temp_stpt_1 (Supply air setpoint (VAV units)); AV 1022 hvac_mode_1 (HVAC mode as a number); BV 2001 sfan_1 (Supply fan relay on/off); AV 43 ctrltemp_1 (Control temperature (RAT, SPT or zone)); AV 10 sat_1 (Supply air temperature leaving the fan); BV 9 alm_1 (Unit alarm state); BV 105 comm_lost_alm_1 (UPC lost CCN communication with the unit).

How do I enable BMS control of the Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option)?

The unit ships with Local Machine Disable (Service Test > STOP, BV 59 unitstop_1) set to Yes; set it to No before the unit runs. Occupancy follows the ComfortLink CCN schedule number (Configuration > CCN > SC.OV > SCH.N): 0 = always occupied, 1 = local schedule (default), 65-99 = a CCN schedule. The points list makes Occupied? (BV 2008) writable, but the manual does not describe how a write interacts with SCH.N; test it on site.

Does the Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option) need a BACnet heartbeat or have a communication timeout?

The manual says forces at CCN priority 7 clear unless rewritten in time: outside air temperature, outside RH, outside air quality and static pressure reset after 30 minutes, return air and space temperature after 3 minutes.

Can the BMS supply sensor values to the Carrier Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option)?

Space Temperature (AV 137), Return Air Temperature (AV 135), Outside Air Temperature (AV 1003), Outside Air RH (AV 119), IAQ (AV 1009) and OAQ (AV 113) are writable. Refresh them within the force timeouts (3 min for space and return temperature, 30 min for outdoor values).

How do I check these points on the real Weathermaster 48/50P2-P5 030-100 Large Rooftop (ComfortLink 7.x, UPC Open BACnet option)?

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: Weathermaster 48/50P2,P3,P4,P5030-100 Single Package Large Rooftop Units with ComfortLink Version 7.X Controls - Controls, Start-Up, Operation, Service and Troubleshooting (Appendix F: UPC Open Controller, Table AP Network Points List) · 48/50P-8T · rev. 8-19. Object names, instances and units are reproduced as published; descriptions are our own.