Elsteam MISTRAL Use And Maintenance Manual
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Elsteam MISTRAL Use And Maintenance Manual

Ultrasonic humidifiers of small size and capacity
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MISTRAL
Ultrasonic humidifiers
of small size and capacity
Use and maintenance manual
924EHUCE4.00 - 06/2022
WARNING
Make sure you read and fully
understand the manual before
using this device.
Non-observance of these
instructions may result in death
or serious injury.

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Summary of Contents for Elsteam MISTRAL

  • Page 1 MISTRAL Ultrasonic humidifiers of small size and capacity WARNING Make sure you read and fully understand the manual before using this device. Non-observance of these instructions may result in death or serious injury. Use and maintenance manual 924EHUCE4.00 - 06/2022...

  • Page 2: Table Of Contents

    4.2 Information concerning installation and the surrounding environment 4.3 Dimensions ............................14 4.3.1 Dimensions of Mistral ..........................14 4.3.2 Dimensions of Mistral with box........................14 4.3.3 Dimensions of Mistral with support bracket ..................15 4.4 Minimum installation distances ......................16 4.4.1 Open space ..............................16 4.4.2 Enclosed space ............................16 4.5 Support bracket ...........................17...
  • Page 3 6.4.4 External proportional humidistat connection with signal 0...10 V ............32 6.4.5 ON/OFF connection with humidistat or external contact ..............32 7. USER INTERFACE .......................... 33 7.1 Mistral user interface .........................33 7.1.1 LED ................................33 7.1.2 Keys ................................33 7.2 EV3K user interface ..........................34 7.2.1 Icons ................................34...
  • Page 4 13.3.1 Available Modbus commands and data areas ..................57 13.4  Address configuration ........................57 13.5 Connections ............................57 13.6 Modbus tables content ........................57 13.7 Mistral modbus addresses ....................... 58 13.7.1 Table of Modbus addresses ........................58 924EHUCE4.00 - Mistral Humidifier | 4 |...
  • Page 5 14.1.1 Warnings ..............................59 14.1.2 Alarms ..............................59 14.1.3 High or low humidity alert ........................59 14.1.4 Level sensor alert ...........................60 14.1.5 Water alert ...............................60 14.2 Alerts table (EV3K interface)......................60 15. WIRING DIAGRAM ........................62 924EHUCE4.00 - Mistral Humidifier | 5 | 06/2022...

  • Page 6: Important Information

    IMPORTANT INFORMATION Liability and residual risks ELSTEAM assumes no liability for any damage caused by the following (by way of example; this is not an exhaustive list): •  I nstallation/useforpurposesotherthanthosespecifiedand,inparticular,notadheringtothesafetyprovisionssetout by current regulations in the country in which the product is installed and/or contained in this manual;...

  • Page 7: Important Safety Information

    NOTICE indicates a situation not related to physical injuries but which,ifnotavoided, could damage the equipment. NOTE: T hemaintenance,repair,installationanduseoftheequipmentmustonlybeentrustedtoqualifiedpersonnel. QUALIFIED PERSONNEL Only suitably trained and experienced personnel capable of understanding the content of this manual and all documentation regardingtheproductareauthorisedtoworkonandwiththisequipment.Furthermore,thepersonnelmusthavecompleted coursesinsafetyandmustbeabletorecogniseandpreventtheimplieddangers.Thepersonnelmusthavesuitabletraining, knowledgeandexperienceatatechnicallevel,andbecapableofanticipatinganddetectingpotentialriskscausedbyusing theproduct,aswellaschangingthesettingsandmodifyingthemechanical,electricandelectronicequipmentfortheentire systeminwhichtheproductisused.Allpersonnelworkingonandwiththeproductmustbeentirelyfamiliarwiththerelevant standardsanddirectives,aswellassafetyregulations. 924EHUCE4.00 - Mistral Humidifier | 7 | 06/2022...

  • Page 8: Safety Information Relating To The Product

    WARNING REGULATORY INCOMPATIBILITY Makesurealltheequipmentusedandsystemsdesignedconformtocurrentlocal,regionalandnationalstandards. Health and Hygiene The Mistral humidifier features: • Automatic draining for inactivity; • Periodic automatic cleaning; • Plastic material on whose surface bacterial colonies do not proliferate. Inadequate use and/or poor maintenance of the humidifier can damage your health.

  • Page 9: Introduction

    1. INTRODUCTION 1.1 DESCRIPTION The Mistral humidifier is the ELSTEAM solution for compact ultrasonic adiabatic humidification systems. The Mistralhumidifiergenerateshumiditybybreakingupthemoleculesofthewatercontainedinthereservoirandproducing mist through the energy transferred by ultrasonic ceramic transducers. The water is aerosolized by oscillating the surface of the transducers in contact with the water using a high frequency signal which generates a column of water above the transducers.

  • Page 10: Main Features

    • Analogue/digitalinput:configurablebyCFG parameter; • Digital input: manages enabling operation from an external signal; • Digitaloutput:managesanalertorisacommandforparallelconfiguration; • RS-485serial:seriallinkforcommunicatingwithremoteuserinterface(see"1.6 ACCESSORIES" ON PAGE 10). 1.6 ACCESSORIES The following accessories are available for the Mistral range of ultrasonic humidifiers: Description EHUK007 Mistral metal support EHUK008...

  • Page 11: Technical Data

    Regulation Control type: Integrated • ON/OFF Control signal: • 0...10 V (or proportional) • 4...20 mA Communication serial port Serial port: 1 RS-485 Modbus RTU serial port COMPLIANCE CE certification: √ 924EHUCE4.00 - Mistral Humidifier | 11 | 06/2022...

  • Page 12: I/O Specifications

    -40...105 °C Range 1%fullscale 1%fullscale (-40...220°F) Solution 0.1°C(1°F) Input 10kΩ 100Ω 24kΩ impedance Digital output specifications Default Description Load (at 30 Vdc) Load type Alert or command for Out1 SPDT Resistive parallel operation 924EHUCE4.00 - Mistral Humidifier | 12 | 06/2022...

  • Page 13: Receiving The Product

    3.1.2 Checking the packaging contents Thestandardproductpackagecontains: • Mistralultrasonichumidifier; • Instruction sheet for: • Mechanical assembly; • Electrical connections; • Start-up instructions; • Switching power supply unit 100...240 Vac / 24 Vdc and wiring. 924EHUCE4.00 - Mistral Humidifier | 13 | 06/2022...

  • Page 14: Mechanical Assembly

    • Do not modify the product. • Do not expose the equipment to liquids or chemicals. • Makesurethereisaneffectiveearthconnection;ifthereisnot,earththeequipment. • Beforepoweringuptheequipment,checkallthewiringconnections. WARNING MALFUNCTIONING OF THE EQUIPMENT • Performthewiringcarefully,incompliancewithelectromagneticcompatibilityandsafetyrequirements. • Makesurethewiringiscorrectfortheendapplication. • Minimisethelengthoftheconnectionsasmuchaspossible,toavoidwindingthecablesaroundelectricallyconnectedparts. • Beforeapplyingthepowersupply,checkallthewiringconnections. • Donotconnectwirestounusedterminalsand/orterminalsmarkedwiththetext“Noconnection”(N.C.). 924EHUCE4.00 - Mistral Humidifier | 14 | 06/2022...

  • Page 15: Dimensions

    4.3.1 Dimensions of Mistral mm (in.) 50 (1.97) 107.4 (4.23) 148 (5.83) Fig. 2. Dimensions of Mistral 4.3.2 Dimensions of Mistral with box mm (in.) 140 (5.51) 80 (3.15) 150.6 (5.93) Fig. 3. Dimensions of Mistral with box 924EHUCE4.00 - Mistral Humidifier...

  • Page 16: Dimensions Of Mistral With Support Bracket

    4.3.3 Dimensions of Mistral with support bracket mm (in.) 105.4 (4.15) 10 (0.39) Fig. 4. Dimensions of Mistral with support bracket 924EHUCE4.00 - Mistral Humidifier | 16 | 06/2022...

  • Page 17: Minimum Installation Distances

    4.4 MINIMUM INSTALLATION DISTANCES When installing the Mistralhumidifierinenclosedspaces,observetheminimumdistanceof500mm(19.68in.)oneachside,soas to guarantee adequate ventilation and aeration of the system. WARNING MALFUNCTIONING OF THE EQUIPMENT • Install the equipment in a position which ensures the minimum distances from all adjacent structures and equipment as indicated in this document.

  • Page 18: Support Bracket

    4.5.2 Precautions for mounting with a support bracket DANGER RISK OF ELECTRIC SHOCK, EXPLOSION OR FIRE • Install the humidifier away from electronic equipment. • Do not install the humidifier above electronic equipment. DANGER RISK OF ELECTRIC SHOCK Makesurethereisaneffectiveearthconnection. 924EHUCE4.00 - Mistral Humidifier | 18 | 06/2022...

  • Page 19: Method Of Mounting With A Support Bracket

    •  S ecurethesupportbrackettothewallfollowingtheinstructionsgiveninthepicture"FIG. 7. INSTRUCTIONS FOR MOUNTING WITH A SUPPORT BRACKET" ON PAGE 19 and the dimensions of the holes and bracket given in the subsection "4.5.1 SUPPORT BRACKET DIMENSIONS" ON PAGE 18 ( • Attach the Mistralhumidifiertothebracket,makingsureitissecure( • Makeprovisionforanearthingconnectionviaeyeletterminalsbetweenthesupportbracketandthehumidifier; •  S ecurethehumidifiertothewall,wherethesupportbracketismounted,andtheearthingconnectionusinganM4flat-head screw,whichisappropriateforthefixingwall( 924EHUCE4.00 - Mistral Humidifier...

  • Page 20: Metal Box

    4.7 METAL BOX The Mistral humidifier can be installed on a wall or on a supporting base with the aid of the metal box supplied as an accessory (see "1.6 ACCESSORIES" ON PAGE 10). 4.7.1 Dimensions of metal box The following illustration shows the dimensions of the optional metal box to be used for mounting on a wall or on a supporting base: mm (in.)

  • Page 21: Method Of Mounting With Box

    4.8 METHOD OF MOUNTING WITH BOX The Mistral humidifier can be installed on a wall or on a supporting base with the aid of the box supplied as an accessory (see "1.6 ACCESSORIES" ON PAGE 10) 4.8.1 Installation on a wall Mounting hooks Fig.

  • Page 22: Installation On A Supporting Base

    • Secure the box to the base following the instructions given in the picture "FIG. 10. INSTRUCTIONS FOR MOUNTING THE BOX ON A SUPPORTING BASE" ON PAGE 22 and the dimensions of the holes and box given in the subsection "4.3.2 DIMENSIONS OF MISTRAL WITH BOX" ON PAGE 15 ( • Attach the Mistralhumidifiertothebox,makingsureitissecure( 924EHUCE4.00 - Mistral Humidifier...

  • Page 23: Hydraulic Installation And Connections

    5. HYDRAULIC INSTALLATION AND CONNECTIONS 5.1 HUMIDIFIER COMPOSITION 5.1.1 Top and front The top and front of the Mistral humidifier consists of: • Humidity outlet; • Fairairintake; • LED user interface. 5.1.2 Bottom The bottom of the Mistral humidifier consists of •...

  • Page 24: Water Drainage System

    • Minimum diameter 10...12 mm (0.39...0.47 in.); • A minimum average slope of 45° and no siphons. Fig. 11. Outlet and drain pipe characteristics Toeliminateanydebrisand/orresidues/processsubstances,flushoutthewatersupplylines. NOTICE MALFUNCTIONING OF THE EQUIPMENT Afterinstallation,flushoutthewatersupplyline,directingthewaterdirectlyintotheoutletwithoutintroducingitintothe humidifier. 5.3.2 Drain water Asthedrainwaterisnon-toxicandnon-contaminated,itcanbedrainedintothecleanwatercollectionsystem,asdefinedby local,regionalandnationalregulationsandstandardsinforce. 924EHUCE4.00 - Mistral Humidifier | 24 | 06/2022...

  • Page 25: Aerosolized Water Distribution

    5.4 AEROSOLIZED WATER DISTRIBUTION The aerosolized water can be distributed via: • Verticaldistributionkit; • Conveyor; 5.4.1 Vertical distribution kit Fig. 12. Vertical distribution kit 924EHUCE4.00 - Mistral Humidifier | 25 | 06/2022...

  • Page 26: Intake Conveyor

    5.4.2 Intake conveyor With fan Fig. 13. Conveyor with fan 924EHUCE4.00 - Mistral Humidifier | 26 | 06/2022...
  • Page 27 Without fan Fig. 14. Conveyor without fan 924EHUCE4.00 - Mistral Humidifier | 27 | 06/2022...

  • Page 28: Pipe Installation Example

    5.4.3 Pipe installation example Fig. 15. Pipe installation example 924EHUCE4.00 - Mistral Humidifier | 28 | 06/2022...

  • Page 29: Electrical Connections

    • Use cables of a cross-section suited to the voltage and current requirements. DANGER LOOSE WIRING CAUSES ELECTRIC SHOCKS AND OVERHEATING Tighten the connections in compliance with the technical specifications relating to tightening torques. WARNING REGULATORY INCOMPATIBILITY Makesurealltheequipmentusedandsystemsdesignedconformtocurrentlocal,regionalandnationalstandards. 924EHUCE4.00 - Mistral Humidifier | 29 | 06/2022...

  • Page 30: Wiring Guidelines

    2 x 28…20 2 x 23…21 2 x 20...20 Fig. 17. Suitable wiring for I/O SELV 6.2.4 Permitted cable lengths NOTICE MALFUNCTIONING OF THE EQUIPMENT • Whenconnectingthepowersupply,usecablesthatarenolongerthan10m(32.80ft.). • Whenconnectingthesensors,digitalinputsandanalogueinputs,usecablesthatarenolongerthan10m(32.80ft.). • WhenconnectingtheRS-485serialline,usecablesthatarenolongerthan1000m(3280ft). • Whenconnectingthedigitaloutputs,usecablesthatarenolongerthan10m(32.80ft). 924EHUCE4.00 - Mistral Humidifier | 30 | 06/2022...

  • Page 31: Wiring Diagram

    Power supply 24 Vdc Button T1 9 10 11 1 2 3 4 5 6 7 Fig. 18. Mistral humidifier connections TERMINALS Phase power supply input (power supply unit) Multifunction input IA1/ID1 Neutral power supply input (power supply unit) Serial communication input RS-485...

  • Page 32: Configurations

    • Stand-aloneconfigurationCFG = 2, • ParallelconfigurationasmasterCFG = 7. 3 = Sensor power supply 4...20 mA 4 = Signal input 2 3 4 5 6 7 Fig. 20. Humidity sensor connection 4...20 mA 924EHUCE4.00 - Mistral Humidifier | 32 | 06/2022...

  • Page 33: Humidity Sensor Connection 0

    6.4.5 ON/OFF connection with humidistat or external contact • Stand-aloneconfigurationCFG = 0; • ParallelconfigurationasmasterCFG = 5. ON/OFF 2 3 4 5 6 7 Fig. 23. ON/OFF connection with humidistat or external contact 924EHUCE4.00 - Mistral Humidifier | 33 | 06/2022...

  • Page 34: User Interface

    Lit steadily: Mist-makerONandhumidifierproduceshumidity 0.5 s ON / 0.5 s OFF: Humidity enable consent ID2 not given Power Supply LED Blinking: 1 s ON / 3 s OFF: Mistral produces no humidity OFF: Humidifier not powered 7.1.2 Keys Keys Tap and release to...

  • Page 35: Ev3K User Interface

    7.2 EV3K USER INTERFACE EV3K is available as an accessory completing the range of Mistral humidifiers (see "1.6 ACCESSORIES" ON PAGE 10). Fig. 25. EV3K user interface 7.2.1 Icons Icon Lit steadily Display shows the humidity sensor value on the top row...

  • Page 36: Main View

    If CFG=0, 1, 5, 6, 10 Setpointnotconfigurable. If CFG= 2, 3, 4, 7, 8, 9 Inthemainview,tochangethesetpoint,tapandreleasethe button. The value on the bottom row of the display will blinktoindicatethatyoucanmakethechangebyscrollingwiththe buttons. Tap the button to confirm the desired value. 924EHUCE4.00 - Mistral Humidifier | 36 | 06/2022...

  • Page 37: Maintenance Menu

    On the top row "----"blinksfor3secondsafterwhich0 is displayed indicating that the reset has been accomplished. Themist-makeroutputstatusisdisplayed. Mist-makeroutput OFF=Mist-makeroutputOFF; status ON=Mist-makeroutputON. The fan output status is displayed. Fanoutputstatus OFF=FanoutputOFF; ON=FanoutputON. 924EHUCE4.00 - Mistral Humidifier | 37 | 06/2022...

  • Page 38: Accessing The Parameters Menu

    UD1 ON = UD1 digital output ON. 7.2.7 Accessing the parameters menu User parameters Fig. 32. Accessing the user parameters menu Maintenance engineer parameters Fig. 33. Accessing the maintenance engineer parameters menu 924EHUCE4.00 - Mistral Humidifier | 38 | 06/2022...

  • Page 39: Changing Fan Speed

    7.2.8 Changing fan speed Fig. 34. Changing fan speed 7.2.9 Maximum humidity production configuration Fig. 35. Changing fan speed 924EHUCE4.00 - Mistral Humidifier | 39 | 06/2022...

  • Page 40: First Power-Up And Start-Up

    "9.1 DRAINING WATER / WASHING RESERVOIR" ON PAGE 41 performingthewashingprocedure,inorderto maintain efficient humidifier operating conditions 8.3 CHECKS TO BE CARRIED OUT EACH TIME THE HUMIDIFIER IS SWITCHED ON Eachtimethehumidifieristurnedon,performthefollowingchecks: 1. Checkthatthemistdeliveryisconsistentwiththedemandforhumidity; 2. Makesuretherearenohydraulicleaks; 3. Checkthattherearenoalertsinprogress(seealertstable). 924EHUCE4.00 - Mistral Humidifier | 40 | 06/2022...

  • Page 41: Operation

    • After an active time determined by parameter C1 (if C1 ≠ 0); • Inthecaseofthefirsthightemperaturealertevent(parametersA1 and A2); • Inthecaseofmaintenance,manualemptyingisinitiatedbypressingandholdingthe button for at least 4 seconds. Inthecaseofemptyingthereservoirduetoinactivity,theMistral humidifier will run the fan for a time F5 to dry the reservoir. If thereisademandforhumidity,thehumidifierwillfillthereservoir. Attheendofeachemptyingphase,thedrainvalveiskeptopenforanother2seconds. 9.2 OPERATING MODE CONFIGURATION...
  • Page 42 Relation between LED BLINKING - OPERATING MODE. Mode 0 (CFG = 0) Mode 1 (CFG = 1) Mode 2 (CFG = 2) Mode 3 (CFG = 3) Mode 4 (CFG = 4) Mode 5 (CFG = 5) 924EHUCE4.00 - Mistral Humidifier | 42 | 06/2022...

  • Page 43: Fan Speed Configuration

    The F0 parameter values corresponding to the lit LED are: LED ON/OFF Value F0 F0 = 0 LED ON/OFF Value F0 F0 = 1 LED ON/OFF Value F0 F0 = 2 LED ON/OFF Value F0 F0 = 3 924EHUCE4.00 - Mistral Humidifier | 43 | 06/2022...

  • Page 44: Humidity Setpoint Configuration

    The humidity percentage values corresponding to the lit LEDs are: Humidity value 9.4.1 Examples of humidity setpoint configuration Example 25% Humidity Setpoint: Fig. 36. Example of humidity setpoint configuration at 25% LED ON/OFF Humidity value 924EHUCE4.00 - Mistral Humidifier | 44 | 06/2022...
  • Page 45 Example 50% Humidity Setpoint: Fig. 37. Example of humidity setpoint configuration at 50% LED ON/OFF Humidity value Example 75% Humidity Setpoint: Fig. 38. Example of humidity setpoint configuration at 75% LED ON/OFF Humidity value 924EHUCE4.00 - Mistral Humidifier | 45 | 06/2022...

  • Page 46: Maximum Steam Production Configuration

    The internal temperature sensor is used by the humidifier for any temperature alerts (see "14.1 ALERTS TABLE (LED INTERFACE)" ON PAGE 60). If A1=0,thehightemperaturealertisdisabled. If A1>0,Mistral generates the alert when the temperature detected by the internal sensor exceeds threshold A1 for a time A2. In this situation the humidifier empties the reservoir and fills it again. Ifafteremptying,thealertoccursagainwithinatimeA3,ahightemperaturealertissignalled.

  • Page 47: Humidity Adjustment

    The outlet starts to produce humidity (at parameter value r6) when both digital inputs are closed. If the digital input ID2isopen(consentnotprovided),the LEDwillblinkwithaperiodof0.5sON-0.5sOFF. Ifconsentisgiven,butthehumidifierisnotproducinganyhumidity,the LEDwillblinkwithaperiodof1sON-3sOFF: The following diagram explains the operating logic: Closed Open Closed Open Fans Closed Open Humidity Fig. 40. Humidity adjustment - ON-OFF 924EHUCE4.00 - Mistral Humidifier | 47 | 06/2022...

  • Page 48: External Proportional Regulator With 0

    IA1 (V) Fig. 41. External proportional regulator with 0...10 input Inordertoproducehumidity,Mistralmustreceiveconsentfromtheventilation,sodigitalinputID2 must be closed. The proportional humidity function has a PWM type modulation which provides for a cycle time between two consecutive activations of the humidity production output (parameter r3).

  • Page 49: Regulator With Humidity Sensor

    • If the sensor reading is between SP-r0 and SP then there is little or no production; • Mistral does not produce humidity under any other conditions; • Mistral does not produce any humidity with the sensor in error. 9.8 RECORDING HOURS OF OPERATION The Mistralhumidifier,amongitsfunctions,includesrecordingtheoperatinghours,tomonitorandalertyouwhentoperform routine maintenance.

  • Page 50: Parallel Operation

    CFG = 5...9 CFG = 10 CFG = 10 CFG = 10 CFG = 10 CFG = 5...9 CFG = 10 Out1 Out1 Out1 Out1 Out1 Fig. 44. Parallel operation NOTE:Inthisoperatingmode,thedigitaloutputisusedtopropagatetheoperatingsignal. NOTE:ForhumidifierssettoSLAVE,donotconnectinputIA1. 924EHUCE4.00 - Mistral Humidifier | 50 | 06/2022...

  • Page 51: Maintenance

    10.1 INTRODUCTION The Mistral humidifier is designed for operation with the water specifications described in subsection "5.2.1 WATER SPECIFICATIONS" ON PAGE 23. Using water with different specifications and/or with a hardness level approaching the limit of 40 °f causes maintenance to be required more frequently.

  • Page 52: Cleaning The Reservoir

    • Disconnect the machine power supply using the external isolator; • Unscrewthescrewsatthetopofthehumidifier; • Clean the reservoir; • Checkthecoversealisintact; • Install the cover by screwing the screws into the upper face. Fig. 45. Opening the Mistral cover to clean the reservoir 924EHUCE4.00 - Mistral Humidifier | 52 | 06/2022...

  • Page 53: Replacing Mist-Maker Ceramic Discs

    10.4 REPLACING MIST-MAKER CERAMIC DISCS Theillustrationgivesinstructionsonhowtoproperlyreplacetheceramicdiscsofthemist-maker. Fig. 46. Replacing mist-maker ceramic discs NOTICE FAN NOT WORKING Whenremovingthecover,becarefulnottodamagethefanpowercableslocatedatthebackofthehumidifier. 924EHUCE4.00 - Mistral Humidifier | 53 | 06/2022...

  • Page 54: Spare Parts

    11. SPARE PARTS Fig. 47. Mistral Humidifier spare parts Ref. Description Ref. Description EHUK001 EHUCwaterdrainvalvekit EHUK012 24Vdclowspeedfan+technopolymergrid EHUK002 EHUCwaterinletvalvekit EHUK020 Level regulator and user interface EHUK003 EHUCsealkit EHUK021 EHUC controller EHUK004 EHUC switching power supply unit 1220000001 DKceramictransducerset(9pcblisterpack) EUHK005 EHUCmist-maker 924EHUCE4.00 - Mistral Humidifier...

  • Page 55: Adjustment Parameters

    Number of operating hours causing the water reservoir to empty. 0...250 0=Functiondisabled. FANS group Fanspeed. 0 =Fanoff; 1 = Speed F1; 0...3 2 = Speed F2; 3 = Speed F3. F4 Fanoffdelayfromswitchingmist-makeroff(with CFG = 10). 0...240 F5 Fanoperationtimeafteremptyingduetoinactivity. 0...999 924EHUCE4.00 - Mistral Humidifier | 55 | 06/2022...
  • Page 56 • Fanoutputstatus; • EEVC output status; • EEVS output status. MODBUS SERIAL CONFIGURATION group LA1 COM1 serial line modbus protocol controller address. 1...247 LA1 COM2 serial line modbus protocol controller address. 1...247 924EHUCE4.00 - Mistral Humidifier | 56 | 06/2022...

  • Page 57: Modbus Rtu Functions And Resources

    13.3 MODBUS FUNCTIONS AND REGISTERS TheModbusregistersforthedeviceareorganisedaroundthefourtypesofbasicdatareferenceindicatedabove,andthistype of data is further identified by the first number of the address. 924EHUCE4.00 - Mistral Humidifier | 57 | 06/2022...

  • Page 58: Available Modbus Commands And Data Areas

    • DATA SIZE: Indicates the size in data bits: • WORD = 16 bit • Byte = 8 bit • The “n” bits = 0...15 bit depending on the value of “n” 924EHUCE4.00 - Mistral Humidifier | 58 | 06/2022...

  • Page 59: Mistral Modbus Addresses

    13.7 MISTRAL MODBUS ADDRESSES 13.7.1 Table of Modbus addresses Val. DATA Par. Description Range Adr. SIZE SETPOINT group SP Humidity setpoint. 1539 R/W WORD r1...r2 CONFIGURATIONS Group CFG Operating mode. 1540 R/W BYTES 0...10 ANALOGUE INPUTS group P1 Water conductivity.

  • Page 60: Diagnostics

    RH sensor < A6-2%reactivationis alarm • LEDblinks0.5sON/0.5sOFF automatic • RHsensornotworking • RH sensor < A5 for a Low humidity • No effect on regulation RHsensor>A5+2%reactivationis time A7 alarm • LEDblinks1sON/1sOFF automatic • RHsensornotworking 924EHUCE4.00 - Mistral Humidifier | 60 | 06/2022...

  • Page 61: Level Sensor Alert

    • LEDblinks0.5sON/5sOFF • Contact ELSTEAM technical • Showing code A8 support Fanmaximum Absorption thresholds exceeded • FanOFF current alert in normal operation • If CFG = 0...4 then Out1 is activated • LEDblinks0.5sON/5sOFF 924EHUCE4.00 - Mistral Humidifier | 61 | 06/2022...
  • Page 62 Level board high Impurities in the water in the • If CFG = 0...4 then Out1 is • Clean the reservoir temperature alert reservoir activated •  S witchthehumidifieroff • LEDblinks0.5sON/5sOFF and on again 924EHUCE4.00 - Mistral Humidifier | 62 | 06/2022...

  • Page 63: Wiring Diagram

    15. WIRING DIAGRAM IA1/ID1 RS-485 - RS-485 + FAN + FAN - Out1 Out1 924EHUCE4.00 - Mistral Humidifier | 63 | 06/2022...
  • Page 64 This document and the solutions contained within it are the intellectual property of ELSTEAM, safeguarded by the Italian Industrial Property Code (CPI). ELSTEAM forbids the reproduction and distribution, even in part, of the contents, unless express authorisation is obtained directly from ELSTEAM.

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