Easy BACnet- Home
- BACnet points lists
- CAREL
- humiFog direct (UA) high-pressure atomising humidifier
High-pressure atomising humidifier (direct room) · BACnet points list
CAREL humiFog direct (UA) high-pressure atomising humidifier BACnet points list
Updated 4 November 2026
humiFog direct is CAREL's high-pressure water atomising humidifier for direct room humidification, with one or two zones. Its c.pHC controller has Modbus and BACnet built in: BACnet MS/TP on the RS485 BMS port or BACnet IP on the Ethernet port (BACnet is the Ethernet default). The object list holds alarm BVs, a unit status code, zone requests, production, water use, probe readings and per-zone set points.
This page lists 61 BACnet objects for the CAREL humiFog direct (UA) high-pressure atomising humidifier — 12 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from CAREL’s own free documentation, linked below.
- Manufacturer
- CAREL
- Model
- humiFog direct (UA) high-pressure atomising humidifier
- Equipment
- High-pressure atomising humidifier (direct room)
- Equipment type
- Humidifiers
- BACnet objects
- 61 (12 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Not stated
- Also known as
- humiFog direct, humiFog Direct, UA, c.pHC, CAREL humiFog, +0300073EN
Reference only, provided as-is: verify against CAREL’s current documentation and the live device before use. Not official CAREL information. Terms of use.
BMS integration notes: CAREL humiFog direct (UA) high-pressure atomising humidifier
Choose BACnet on the Ethernet port (the default) or on the RS485 BMS port, set the address and device instance on Dg07, and enable unit on/off and control from supervisor on Dg01/Dg02. The BMS then switches the unit with OnOff_Status.SVOn (BV 44) and either sends a zone request (AV 29/30) or writes the zone set points. Monitor UnitStatus, zone production, the main probe and the alarm BVs.
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 44 | OnOff_Status.SVOn | Unit on/off from the BMS | Write |
| AV 29 | Regulation.SVReq_1 | Zone 1 request from the BMS, 0-100 % | Write |
| AV 31 | RegCfg_1.SetP_hum | Zone 1 humidity set point, %RH | Write |
| BV 43 | Alarms.AlrmResBySV | Alarm reset from the BMS | Write |
| BV 0 | UnitOn | Unit on/off status | Read |
| PIV 0 | UnitStatus | Operating state code (0-12) | Read |
| AV 2 | Prod_1 | Zone 1 production, % | Read |
| AV 6 | MainPrb_1 | Zone 1 main probe reading | Read |
| BV 3 | Al_HiP.Active | High pressure alarm | Read |
| BV 4 | Al_LoP.Active | Low pressure alarm | Read |
Enable & remote start
On screen Dg01 (single-zone) or Dg02 (two-zone) set the serial address and enable unit on/off and control from supervisor; Dg03 selects the supervisor protocol. Without these settings the unit does not act on the supervisor on/off or request.
Sensors & values from the BMS
Instead of its own probes the unit can take a 0-100 % request per zone from the BMS on Regulation.SVReq_1/2 (AV 29/30). Up to eight CAREL wireless probes can also be read (AV 13-28, humidity on odd and temperature on even instances).
Network setup
- Default supervision: Modbus on the RS485 serial port and BACnet on the Ethernet port.
- Dg04 sets the BMS port baud rate/stop bits/parity; Dg05 sets DHCP, IP, mask, gateway and DNS for Ethernet.
- Dg07 sets the BACnet MS/TP address, max masters, max info frames and the device instance.
- BACnet can run on the serial port or on Ethernet, not both at once; Modbus can run on both.
Watch out for
- The manual lists no default device instance; set a unique one on Dg07.
- Zone 2 objects return data only on two-zone cabinets.
CAREL humiFog direct (UA) high-pressure atomising humidifier 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.
| Description | States | |||||
|---|---|---|---|---|---|---|
| BVmin | 0 | UnitOn | Unit on/off | Read | ||
| BV | 1 | Al_CircBreaker.Active | Circuit breaker intervention | Read | ||
| BV | 2 | Al_HiPSwitch.Active | High pressure switch intervention | Read | ||
| BVmin | 3 | Al_HiP.Active | High pressure | Read | ||
| BVmin | 4 | Al_LoP.Active | Low pressure | Read | ||
| BV | 5 | Al_HiPByPassBlk.Active | High pressure on bypass | Read | ||
| BV | 6 | Al_HiPByPass.Active | High pressure on bypass | Read | ||
| BV | 7 | Al_HiTByPassBlk.Active | High temperature on bypass | Read | ||
| BV | 8 | Al_HiTByPass.Active | High temperature on bypass | Read | ||
| BV | 9 | Al_LoPByPass.Active | Low pressure on bypass | Read | ||
| BV | 10 | Al_Drain.Active | Zone drain valves error | Read | ||
| BV | 11 | Al_ExpOffline.Active | Expansion offline | Read | ||
| BV | 12 | Wr_HiTByPass.Active | Warning high temperature on bypass | Read | ||
| BV | 13 | Al_Retain.Active | Retain memory error | Read | ||
| BV | 14 | Al_RetainWrite.Active | Retain memory writes error | Read | ||
| BV | 15 | Al_MainPrb_1.Active | Main probe 1 error | Read | ||
| BV | 16 | Al_LimPrb_1.Active | Limit probe 1 error | Read | ||
| BV | 17 | Al_MainPrb_2.Active | Main probe 2 error | Read | ||
| BV | 18 | Al_LimPrb_2.Active | Limit probe 2 error | Read | ||
| BV | 19 | Al_PressByPass.Active | Low pressure transducer error | Read | ||
| BV | 20 | Al_TempByPass.Active | Bypass temperature probe error | Read | ||
| BV | 21 | Al_Press.Active | High pressure transducer error | Read | ||
| BV | 22 | Al_MissModel.Active | Missing model | Read | ||
| BV | 23 | Al_WTS.Active | Water treatment system alarm | Read | ||
| BV | 24 | Al_WPrb_1 ÷ 8.Active | Wireless probe 1-8 offline (one object each, BV 24-31) | Read | ||
| BV | 32 | Al_WPrbMain_1.Active | Main probe 1 from wireless error | Read | ||
| BV | 33 | Al_WPrbLim_1.Active | Limit probe 1 from wireless error | Read | ||
| BV | 34 | Al_WPrbMain_2.Active | Main probe 2 from wireless error | Read | ||
| BV | 35 | Al_WPrbLim_2.Active | Limit probe 2 from wireless error | Read | ||
| BV | 36 | Al_NetUnit_1 ÷ 4.Active | Unit 1-4 alarm (one object each, BV 36-39) | Read | ||
| BV | 40 | Al_Maint_50.Active | Change oil | Read | ||
| BV | 41 | Wr_Maint_1000.Active | Maintenance | Read | ||
| BV | 42 | Al_Maint_3000.Active | Maintenance required | Read | ||
| BVmin | 43 | Alarms.AlrmResBySV | Alarms reset | Write | ||
| BVmin | 44 | OnOff_Status.SVOn | Unit on/off from supervisor | Write | ||
| PIVmin | 0 | UnitStatus | Unit status | Read | 0=off by keyboard, 1=off by digital input, 2=off by supervisor, 3=off by scheduler, 4=startup, 5=standby, 6=production, 7=alarm, 8=fill, 9=wash, 10=manual mode, 11=ready backup, 12=switch off | |
| AV | 0 | ReqMsk_1 | Request zone 1 | % | Read | |
| AV | 1 | ReqMsk_2 | Request zone 2 | % | Read | |
| AVmin | 2 | Prod_1 | Production zone 1 | % | Read | |
| AV | 3 | Prod_2 | Production zone 2 | % | Read | |
| AV | 4 | WProd_1 | Water consumption 1 | kg/h or lb/h | Read | |
| AV | 5 | WProd_2 | Water consumption 2 | kg/h or lb/h | Read | |
| AVmin | 6 | MainPrb_1 | Main probe 1 | %RH or °C/°F | Read | |
| AV | 7 | MainPrb_2 | Main probe 2 | %RH or °C/°F | Read | |
| AV | 8 | LimPrb_1 | Limit probe 1 | %RH or °C/°F | Read | |
| AV | 9 | LimPrb_2 | Limit probe 2 | %RH or °C/°F | Read | |
| AV | 10 | PressByPass | Pressure on bypass | bar or psi | Read | |
| AV | 11 | Press | Pressure on main line | bar or psi | Read | |
| AV | 12 | TempByPass | Bypass temperature | °C or °F | Read | |
| AV | 13 | Inputs_WPrbs.WirelessPrbVal_1 ÷ 8.Hum | Humidity from wireless probes 1-8 (AV 13-27, odd) | %RH | Read | |
| AV | 14 | Inputs_WPrbs.WirelessPrbVal_1 ÷ 8.Temp | Temperature from wireless probes 1-8 (AV 14-28, even) | °C or °F | Read | |
| AVmin | 29 | Regulation.SVReq_1 | Unit request from supervisor zone 1 | % | Write | |
| AV | 30 | Regulation.SVReq_2 | Unit request from supervisor zone 2 | % | Write | |
| AVmin | 31 | RegCfg_1.SetP_hum | Setpoint zone 1 (humidity) | %RH | Write | |
| AV | 32 | RegCfg_1.SetP_temp | Setpoint zone 1 (temperature) | °C or °F | Write | |
| AV | 33 | RegCfg_1.SetPLim_hum | Setpoint limit zone 1 (humidity) | %RH | Write | |
| AV | 34 | RegCfg_1.SetPLim_temp | Setpoint limit zone 1 (temperature) | °C or °F | Write | |
| AV | 35 | RegCfg_2.SetP_hum | Setpoint zone 2 (humidity) | % | Write | |
| AV | 36 | RegCfg_2.SetP_temp | Setpoint zone 2 (temperature) | °C or °F | Write | |
| AV | 37 | RegCfg_2.SetPLim_hum | Setpoint limit zone 2 (humidity) | % | Write | |
| AV | 38 | RegCfg_2.SetPLim_temp | Setpoint limit zone 2 (temperature) | °C or °F | Write |
No points match these filters.
Object ID lookup: CAREL humiFog direct high-pressure atomising humidifier point IDs by name
BV0UnitOnBV1Al_CircBreaker.ActiveBV2Al_HiPSwitch.ActiveBV3Al_HiP.ActiveBV4Al_LoP.ActiveBV5Al_HiPByPassBlk.ActiveBV6Al_HiPByPass.ActiveBV7Al_HiTByPassBlk.ActiveBV8Al_HiTByPass.ActiveBV9Al_LoPByPass.ActiveBV10Al_Drain.ActiveBV11Al_ExpOffline.ActiveBV12Wr_HiTByPass.ActiveBV13Al_Retain.ActiveBV14Al_RetainWrite.ActiveBV15Al_MainPrb_1.ActiveBV16Al_LimPrb_1.ActiveBV17Al_MainPrb_2.ActiveBV18Al_LimPrb_2.ActiveBV19Al_PressByPass.ActiveBV20Al_TempByPass.ActiveBV21Al_Press.ActiveBV22Al_MissModel.ActiveBV23Al_WTS.ActiveBV24Al_WPrb_1 ÷ 8.ActiveBV32Al_WPrbMain_1.ActiveBV33Al_WPrbLim_1.ActiveBV34Al_WPrbMain_2.ActiveBV35Al_WPrbLim_2.ActiveBV36Al_NetUnit_1 ÷ 4.ActiveBV40Al_Maint_50.ActiveBV41Wr_Maint_1000.ActiveBV42Al_Maint_3000.ActiveBV43Alarms.AlrmResBySVBV44OnOff_Status.SVOnPIV0UnitStatusAV0ReqMsk_1AV1ReqMsk_2AV2Prod_1AV3Prod_2AV4WProd_1AV5WProd_2AV6MainPrb_1AV7MainPrb_2AV8LimPrb_1AV9LimPrb_2AV10PressByPassAV11PressAV12TempByPassAV13Inputs_WPrbs.WirelessPrbVal_1 ÷ 8.HumAV14Inputs_WPrbs.WirelessPrbVal_1 ÷ 8.TempAV29Regulation.SVReq_1AV30Regulation.SVReq_2AV31RegCfg_1.SetP_humAV32RegCfg_1.SetP_tempAV33RegCfg_1.SetPLim_humAV34RegCfg_1.SetPLim_tempAV35RegCfg_2.SetP_humAV36RegCfg_2.SetP_tempAV37RegCfg_2.SetPLim_humAV38RegCfg_2.SetPLim_temp
Integration notes
- Object names here are the manual's Variable column; the manual's Parameter column is used as the description.
- The manual prints three rows only as ranges: BV 24-31 (wireless probe 1-8 offline), BV 36-39 (unit 1-4 alarm) and AV 13-28 (wireless probe 1-8 humidity on odd instances 13-27, temperature on even instances 14-28). Each is listed here as one row at its first instance with the name as printed; the other instances exist but their names are not printed individually.
- Zone 2 objects only apply to two-zone cabinets; wireless probe objects only apply when CAREL wireless probes are installed.
- Units follow the unit's metric/imperial setting (%RH or °C/°F for probes, bar/psi, kg/h or lb/h). The manual prints % for the zone 2 humidity set points.
- Source: section 10.4 'List of BACnet parameters', page 32, Tab. 10.c (85 objects, printed as 61 rows because of the three ranges). The Italian edition is +0300073IT.
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 humiFog direct (UA) high-pressure atomising humidifier 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 CAREL humiFog direct (UA) high-pressure atomising humidifier
How many BACnet points does the CAREL humiFog direct (UA) high-pressure atomising humidifier have?
This list has 61 BACnet objects: 25 analog values, 35 binary values, 1 positive integer value. The exact set on a given unit depends on its firmware, installed options and configuration.
Which CAREL humiFog direct (UA) high-pressure atomising humidifier BACnet points are writable?
12 of the 61 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 CAREL humiFog direct (UA) high-pressure atomising humidifier BACnet documentation?
The source is humiFog direct - User manual (+0300073EN rel. 1.4), revision 2022-03-29, published free by CAREL at https://www.carel.com/documents/10191/0/%2B0300073EN/76c9e973-2bb0-41ed-baa2-aae19caeccf5?version=1.11.
What are the minimum BACnet points to integrate the CAREL humiFog direct (UA) high-pressure atomising humidifier?
Start with BV 44 OnOff_Status.SVOn (Unit on/off from the BMS); AV 29 Regulation.SVReq_1 (Zone 1 request from the BMS, 0-100 %); AV 31 RegCfg_1.SetP_hum (Zone 1 humidity set point, %RH); BV 43 Alarms.AlrmResBySV (Alarm reset from the BMS); BV 0 UnitOn (Unit on/off status); PIV 0 UnitStatus (Operating state code (0-12)); AV 2 Prod_1 (Zone 1 production, %); AV 6 MainPrb_1 (Zone 1 main probe reading); BV 3 Al_HiP.Active (High pressure alarm); BV 4 Al_LoP.Active (Low pressure alarm).
How do I enable BMS control of the CAREL humiFog direct (UA) high-pressure atomising humidifier?
On screen Dg01 (single-zone) or Dg02 (two-zone) set the serial address and enable unit on/off and control from supervisor; Dg03 selects the supervisor protocol. Without these settings the unit does not act on the supervisor on/off or request.
Can the BMS supply sensor values to the CAREL humiFog direct (UA) high-pressure atomising humidifier?
Instead of its own probes the unit can take a 0-100 % request per zone from the BMS on Regulation.SVReq_1/2 (AV 29/30). Up to eight CAREL wireless probes can also be read (AV 13-28, humidity on odd and temperature on even instances).
How do I check these points on the real humiFog direct (UA) high-pressure atomising humidifier?
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 CAREL BACnet points lists
- Gas-fired steam humidifier
CAREL gaSteam (UG) gas-fired humidifier
CAREL gaSteam UG gas-fired isothermal steam humidifiers (indoor and outdoor versions, single unit or Main/Secondary pairs).
Also known as: gaSteam, UG, UG045, UG090, UG180, CAREL gas-fired steam humidifier, +0300122EN - Electric resistance steam humidifier
CAREL heaterSteam 4 (UR) process / titanium
CAREL heaterSteam UR electric heater steam humidifiers (process and titanium versions) with the c.pHC-based controller, manual +0300087EN.
Also known as: heaterSteam, heaterSteam 4, heaterSteam process, heaterSteam titanium, UR, URH, CAREL electric resistance humidifier, +0300087EN - Electric resistance steam humidifier
CAREL heaterSteam UR (2018 manual, before heaterSteam 4)
CAREL heaterSteam UR electric heater steam humidifiers of the generation before heaterSteam 4, as covered by manual +0300080EN rel. 1.4 (2018).
Also known as: heaterSteam, heaterSteam UR, UR002, UR080, CAREL resistance steam humidifier, +0300080EN - Air handling unit controller
CAREL k.air air handling unit controller
CAREL k.air mini and k.air large air handling unit controllers (the versions with BACnet IP and BACnet MS/TP); k.air smart is Modbus only.
Also known as: k.air, kair, k.air large, k.air mini, CAREL k.air, +030220981, CAREL AHU controller
Source: humiFog direct - User manual · +0300073EN rel. 1.4 · rev. 2022-03-29. Object names, instances and units are reproduced as published; descriptions are our own.