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Electronic mixing valve (via gateway) · BACnet points list
Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052 BACnet points list
Updated 12 November 2026
The LEGIOMIX 6000 is an electronic thermostatic mixing valve for domestic hot water with programmable thermal disinfection and thermal shock. The Caleffi 755052 gateway maps its Modbus RTU registers to Analog and Binary Values on BACnet MS/TP or BACnet IP: mixed and recirculation temperatures, valve state, setpoints, disinfection schedule and timers, clock settings and command/reset objects.
This page lists 50 BACnet objects for the Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052 — 42 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Caleffi’s own free documentation, linked below.
- Manufacturer
- Caleffi
- Model
- LEGIOMIX 6000 series mixing valve via gateway 755052
- Equipment
- Electronic mixing valve (via gateway)
- Equipment type
- Valves & actuators
- BACnet objects
- 50 (42 writable)
- Transport
- BACnet MS/TP, BACnet IP
- Firmware
- Not stated
- Also known as
- LEGIOMIX 6000, Legiomix_6000_Series, 6001, Caleffi 755052, Caleffi Modbus RTU / BACnet gateway, FPC-N54
Reference only, provided as-is: verify against Caleffi’s current documentation and the live device before use. Not official Caleffi information. Terms of use.
BMS integration notes: Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052
Add the Legiomix_6000_Series profile and the valve's Modbus Node-ID in the gateway, then read AV 3 mixed temperature, AV 4 recirculation temperature and AV 7 state. Write the mixing and disinfection setpoints (AV 23/24) as needed and use BV 42 to reset alarms.
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 |
|---|---|---|---|
| AV 23 | Set Reg Deg_C (Set Mix temp) | Mixed water setpoint, °C | Write |
| AV 3 | Tmix Deg_C (Mixing temp.) | Mixed water temperature, °C | Read |
| AV 4 | Trec Deg_C (Recirculation temp.) | Recirculation temperature, °C | Read |
| AV 7 | State | State: regulation, disinfection, flushing, shock, alarm | Read |
| BV 42 | Alarm Reset | Alarm reset | Write |
Network setup
- The gateway (a ProtoNode FPC-N54) ships with fixed Caleffi profiles; pick the profile and the device's Modbus Node-ID in its web configurator (default IP 192.168.1.24, user admin, password on the gateway label).
- The BACnet device instance is derived from the Modbus Node-ID (1-255), which must be unique per device.
- Serves BACnet MS/TP or BACnet IP; set Virtual Server Nodes to Yes when several devices share one gateway.
- Valve Modbus port: 9600 baud, no parity, 8 data bits, 1 stop bit.
Watch out for
- Use either the °C or the °F setpoint objects, not both.
Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052 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.
Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AV | 1 | Product type | Product code (6001) | Read | ||
| AV | 2 | Address | Modbus address, 1-247 | Read | ||
| AVmin | 3 | Tmix Deg_C (Mixing temp.) | Mixed water temperature | °C | Read | |
| AVmin | 4 | Trec Deg_C (Recirculation temp.) | Recirculation temperature | °C | Read | |
| AV | 5 | Tmix Deg_F (Mixing temp.) | Mixed water temperature | °F | Read | |
| AV | 6 | Trec Deg_F (Recirculation temp.) | Recirculation temperature | °F | Read | |
| AVmin | 7 | State | Valve operating state | Read | 1=Regulation, 2=Disinfection, 3=Flushing, 4=Thermal shock, 5=Alarm | |
| AV | 8 | Program ID | Active program | Read | 0=0, 1=1a, 2=1b, 3=2 | |
| AV | 9 | Current Day | Clock day, 1-31 | Write | ||
| AV | 10 | Current Month | Clock month, 1-12 | Write | ||
| AV | 11 | Current Year | Clock year | Write | ||
| AV | 12 | Current Hour | Clock hour, 0-23 | Write | ||
| AV | 13 | Current Minute | Clock minute, 0-59 | Write | ||
| AV | 14 | Language | Display language | Write | 0=IT, 1=EN, 2=FR, 3=DE, 4=ES, 5=PT, 6=NL, 7=SL, 8=HR, 9=SR, 10=RO | |
| AV | 15 | Time ON (h) (Start dis.) | Disinfection start hour, 0-23 | h | Write | |
| AV | 16 | Time ON (m) (Start dis.) | Disinfection start minute, 0-59 | min | Write | |
| AV | 17 | Time OFF (h) (Stop dis.) | Disinfection stop hour, 0-23 | h | Write | |
| AV | 18 | Time OFF (m) (Stop dis.) | Disinfection stop minute, 0-59 | min | Write | |
| AV | 19 | Time Wait (before reading rec.) | Wait before reading recirculation temp, 1-255 | min | Write | |
| AV | 20 | Time min (to have correct dis.) | Minimum time for a valid disinfection, 0-254 | min | Write | |
| AV | 21 | Time Flux (Time of closing relay 4 after ending the dis.) | Relay 4 closing time after disinfection, 0-2550 | s | Write | |
| AV | 22 | Time Shock (Time of duration) | Thermal shock duration, 1-4320 | min | Write | |
| AVmin | 23 | Set Reg Deg_C (Set Mix temp) | Mixing setpoint, 20-85 | °C | Write | |
| AV | 24 | Set Dis Deg_C (Set Dis temp) | Disinfection setpoint, 40-85 | °C | Write | |
| AV | 25 | Set Ric Deg_C (Set Rec temp) | Recirculation setpoint, 40-85 | °C | Write | |
| AV | 26 | Set Shock Deg_C (Set Shock temp) | Thermal shock setpoint, 30-85 | °C | Write | |
| AV | 27 | Set Tmax Deg_C (Set max temp) | Maximum temperature, 50-90 | °C | Write | |
| AV | 28 | Set Reg Deg_F (Set Mix temp) | Mixing setpoint, 68-185 | °F | Write | |
| AV | 29 | Set Dis Deg_F (Set Dis temp) | Disinfection setpoint, 104-185 | °F | Write | |
| AV | 30 | Set Ric Deg_F (Set Rec temp) | Recirculation setpoint, 104-185 | °F | Write | |
| AV | 31 | Set Shock Deg_F (Set Shock temp) | Thermal shock setpoint, 86-185 | °F | Write | |
| AV | 32 | Set Tmax Deg_F (Set max temp) | Maximum temperature, 122-194 | °F | Write | |
| AV | 33 | Daily Disinfection | Disinfection days, bit-coded | Write | bit 0=Monday ... bit 5=Saturday, bit 6=Sunday | |
| BV | 34 | Presence of Recirculation Probe | Recirculation probe fitted | Write | 1=Presence of Rec probe | |
| BV | 35 | Anticlog | Anti-clog function | Write | 1=Anticlog | |
| AV | 36 | Legal Hour | Daylight saving rule | Write | bit 2:0 bit 3:1=Disabled, bit 2:1 bit 3:0=EUR, bit 2:0 bit 3:1=USA, bit 2:1 bit 3:1=Custom | |
| BV | 37 | International System of Unit | Temperature unit | Write | 0=°C, 1=°F | |
| BV | 38 | LED Display Enable | LED display on | Write | 1=LED display enable | |
| BV | 39 | Shock Activation | Start thermal shock | Write | 1=Shock Activation | |
| BV | 40 | Pin-code Reset | Reset PIN code | Write | 1=Pin-code Reset | |
| BV | 41 | Disinfection Reset | Reset disinfection | Write | 2=Disinfection Reset | |
| BVmin | 42 | Alarm Reset | Reset alarm | Write | 3=Alarm Reset | |
| BV | 43 | Historical Data | Historical data command | Write | 4=Historical Data | |
| BV | 44 | Shock Deactivation | Stop thermal shock | Write | 1=Shock Deactivation | |
| AV | 45 | Time Motor (Time to move actuator from close to open position) | Actuator stroke time, 8-320 | s | Write | |
| AV | 46 | Time Play (Delay of time in movement of actuator while changing direction) | Actuator reversal play delay, 1-255 | s | Write | |
| AV | 47 | Start Sunday Legal Hour | DST start Sunday (custom rule) | Write | -3, -2, -1, 1, 2, 3 | |
| AV | 48 | Start Month Legal Hour | DST start month, 1-12 | Write | ||
| AV | 49 | End Sunday Legal Hour | DST end Sunday (custom rule) | Write | -3, -2, -1, 1, 2, 3 | |
| AV | 50 | End Month Legal Hour | DST end month, 1-12 | Write |
No points match these filters.
Object ID lookup: Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052 point IDs by name
AV1Product typeAV2AddressAV3Tmix Deg_C (Mixing temp.)AV4Trec Deg_C (Recirculation temp.)AV5Tmix Deg_F (Mixing temp.)AV6Trec Deg_F (Recirculation temp.)AV7StateAV8Program IDAV9Current DayAV10Current MonthAV11Current YearAV12Current HourAV13Current MinuteAV14LanguageAV15Time ON (h) (Start dis.)AV16Time ON (m) (Start dis.)AV17Time OFF (h) (Stop dis.)AV18Time OFF (m) (Stop dis.)AV19Time Wait (before reading rec.)AV20Time min (to have correct dis.)AV21Time Flux (Time of closing relay 4 after ending the dis.)AV22Time Shock (Time of duration)AV23Set Reg Deg_C (Set Mix temp)AV24Set Dis Deg_C (Set Dis temp)AV25Set Ric Deg_C (Set Rec temp)AV26Set Shock Deg_C (Set Shock temp)AV27Set Tmax Deg_C (Set max temp)AV28Set Reg Deg_F (Set Mix temp)AV29Set Dis Deg_F (Set Dis temp)AV30Set Ric Deg_F (Set Rec temp)AV31Set Shock Deg_F (Set Shock temp)AV32Set Tmax Deg_F (Set max temp)AV33Daily DisinfectionBV34Presence of Recirculation ProbeBV35AnticlogAV36Legal HourBV37International System of UnitBV38LED Display EnableBV39Shock ActivationBV40Pin-code ResetBV41Disinfection ResetBV42Alarm ResetBV43Historical DataBV44Shock DeactivationAV45Time Motor (Time to move actuator from close to open position)AV46Time Play (Delay of time in movement of actuator while changing direction)AV47Start Sunday Legal HourAV48Start Month Legal HourAV49End Sunday Legal HourAV50End Month Legal Hour
Integration notes
- The guide prints no read/write column; setpoints, timers, settings and command objects are marked writable here and measurements read-only.
- Temperatures are mapped twice, in °C and °F objects.
- Point names include the explanations in brackets exactly as printed.
- AV 47 and AV 49 only apply when AV 36 Legal Hour is set to Custom (-1 = last Sunday, 1 = first Sunday of the month, and so on).
- Not the same list as the newer LEGIOMIXevo 6003 or LEGIOMIX 2.0 6002.
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 LEGIOMIX 6000 series mixing valve via gateway 755052 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 Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052
How many BACnet points does the Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052 have?
This list has 50 BACnet objects: 40 analog values, 10 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052 BACnet points are writable?
42 of the 50 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. The source has no read/write column, so this is inferred from object type.
Where is the official Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052 BACnet documentation?
The source is Start-up Guide for the gateway MODBUS RTU / BACnet, Code 755052, Appendix 5 LEGIOMIX_6000_SERIES Modbus RTU mappings to BACnet (H0004703.03), revision 2024, published free by Caleffi at https://www.caleffi.com/sites/default/files/media/external-file/h0004703_EN.pdf.
What are the minimum BACnet points to integrate the Caleffi LEGIOMIX 6000 series mixing valve via gateway 755052?
Start with AV 23 Set Reg Deg_C (Set Mix temp) (Mixed water setpoint, °C); AV 3 Tmix Deg_C (Mixing temp.) (Mixed water temperature, °C); AV 4 Trec Deg_C (Recirculation temp.) (Recirculation temperature, °C); AV 7 State (State: regulation, disinfection, flushing, shock, alarm); BV 42 Alarm Reset (Alarm reset).
How do I check these points on the real LEGIOMIX 6000 series mixing valve via gateway 755052?
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 Caleffi BACnet points lists
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Caleffi CONTECA EASY 750 series heat meter via gateway 755052
Caleffi CONTECA EASY 750 series heat meters connected to BACnet through the Caleffi gateway code 755052.
Also known as: CONTECA EASY, Conteca_Easy_750_Series, 750 series, 7500, Caleffi heat meter BACnet, Caleffi 755052 - Electronic mixing valve (via gateway)
Caleffi LEGIOMIX 2.0 6000 series (6002) mixing valve via gateway 755052
Caleffi LEGIOMIX 2.0 6000 series (model 6002) electronic mixing valves with disinfection, connected to BACnet through the Caleffi gateway code 755052.
Also known as: LEGIOMIX 2.0, Legiomix_2_0_6000_Series, 6002, LEGIOMIX 2.0 6000, Caleffi 755052, FPC-N54 - Electronic mixing valve with thermal disinfection
Caleffi LEGIOMIXevo 6003 Series Electronic Mixing Valve
Caleffi 6003 Series LEGIOMIXevo electronic mixing valves for central domestic hot water systems, firmware 2.0.0 or higher.
Also known as: LEGIOMIXevo, LEGIOMIX evo, Serie 6003, 6003 Series
Source: Start-up Guide for the gateway MODBUS RTU / BACnet, Code 755052, Appendix 5 LEGIOMIX_6000_SERIES Modbus RTU mappings to BACnet · H0004703.03 · rev. 2024. Object names, instances and units are reproduced as published; descriptions are our own.