Table of Contents
Related Manuals for Elsteam VEH Series
Summary of Contents for Elsteam VEH Series
- Page 1 VEH Series Immersed electrode humidifiers for air handling units WARNING Make sure you read and fully understand the user manual before using this device. Non-observance of these instructions will result in death or serious injury.
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Page 2: Table Of Contents
6. ELECTRICAL CONNECTIONS ......................20 6.1 Before you start ...........................20 6.2 Connection best practice ........................20 6.2.1 Wiring best practices ..........................20 6.2.2 Cable glands and cable routing ........................22 6.2.3 Replacing fuses - Fuse box ........................23 924VHE4.02 - VEH series humidifiers | 2 | 02/2022... - Page 3 9.1 Introduction ............................30 9.2 Modbus message structure ........................30 9.3 Modbus functions and registers ......................30 9.3.1 Available Modbus commands and data areas ..................31 9.4 Address configuration .........................31 9.5 Connections ............................31 9.6 Modbus tables content ........................31 924VHE4.02 - VEH series humidifiers | 3 | 02/2022...
- Page 4 Opening the electric panel ..........................35 12. SPARE PARTS ..........................37 12.1 Hydraulic unit .............................37 12.2 Electric panel ............................38 13. WIRING DIAGRAMS ........................39 13.1 4-Electrode models ..........................39 13.2 7-Electrode models ..........................40 924VHE4.02 - VEH series humidifiers | 4 | 02/2022...
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Page 5: 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 6: 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. 924VHE4.02 - VEH series humidifiers | 6 | 02/2022... -
Page 7: Safety Information Relating To The Product
SAFETY INFORMATION RELATING TO THE PRODUCT VEH series humidifiers are defined as "NOT ACCESSIBLE TO THE PUBLIC". Beforecarryingoutanyworkontheequipment,readtheseinstructionscarefully,makingsureyouunderstandeverything. DANGER RISK OF ELECTRIC SHOCK, EXPLOSION OR ELECTRIC ARC • Only use electrically insulated measuring devices and equipment. • Do not install the equipment while the power supply is connected. -
Page 8: Introduction
The VEH series consists of 2 elements: • Electric panel; • Hydraulic unit. VEH series humidifiers generate humidity (steam) by means of a current passing between 4 or more electrodes immersed in drinkingwaterandbringingittoboilingpoint. Thesteamiscontrolledbyadjustingtheintensityofthecurrenttransferredtothewaterbytheimmersedelectrodes,which indirectly controls the boiling of the water. -
Page 9: Accessories
1.4 Accessories The following accessories for use with VEH series immersed electrode humidifiers are available: Description VEHK07 VEHhydraulicunitremovalflangekit VEHK08 D40drainageunitkit VEHK16 5mpowercablekitforrunningfromelectricpaneltohydraulicmoduleVEH10-20-30-40 VEHK17 5mpowercablekitforrunningfromelectricpaneltohydraulicmoduleVEH60-80-100 VEHK26 Hydraulicconnectionsfeedthroughkit VEHK30 Filling/dischargeunitkitexternaltoAHU 0031000048 3/4"GFemalewaterinlethose Water drainage tray 0016020018 Condensatecollectiontank490x690x70AISI304 0016020019 Condensatecollectiontank490x950x70AISI304 0016020020 Condensatecollectiontank490x1350x70AISI304 EVHP523 Humidity probe 4...20 mA... -
Page 10: Technical Data
Proportional(0...10V),ON-OFFor(0...10V/4...20mA) Compliance Yes,withself-certification NOTE: The • symbol indicates that the data applies to every p/n; for further information please contact the ELSTEAM sales office. (*): Steam production occurs inside the AHU and therefore under equivalent pressure conditions. 924VHE4.02 - VEH series humidifiers... -
Page 11: Receiving The Product
• Hydraulic unit; • Electric panel; • Operating and maintenance manual; • Waterinletconnectionpipeforusebetweenthemainsupplyandthesolenoidvalveatthehumidifierinlet; • Cables connecting the hydraulic unit and electric panel; • Hydraulic unit discharge; • Key for opening the electric panel. 924VHE4.02 - VEH series humidifiers | 11 | 02/2022... -
Page 12: Dimensions And Mechanical Assembly
(3.23) (3.89) (4.54) 785 785 985 1185 1385 7 electrodes (2.08) (2.57) (2.57) (3.23) (3.89) (4.54) 4.1.2 Electric panel mm (in.) Reset 210 (8.27) 350 (13.78) Fig. 2. Electric panel dimensions 924VHE4.02 - VEH series humidifiers | 12 | 02/2022... -
Page 13: Installation
4.2 Installation 4.2.1 Minimum installation dimensions Electric panel mm (in.) Reset 300 (11.81) 300 (11.81) Fig. 3. Minimum installation distances Hydraulic unit mm (in.) (3.94) (5.51) (3.94) Fig. 4. Minimum installation distances 924VHE4.02 - VEH series humidifiers | 13 | 02/2022... -
Page 14: Installation
Cooling coil mm (in.) Fig. 5. Minimum installation distances - from coil 4.3 Installation DANGER RISK OF ELECTRIC SHOCK, EXPLOSION OR ELECTRIC ARC Makesurethereisaneffectiveearthconnection. NOTICE FAULTY INSTALLATION Wheninstallingtheelectricpanel,onlyusethehooksprovided. 924VHE4.02 - VEH series humidifiers | 14 | 02/2022... -
Page 15: Electric Panel Installation Instructions
• Connect the inlet solenoid valve to the pipe provided; • Connect the discharge unit using special water drainage pipes (Ø 40 mm (1.57 in.)); • R estoretheconnectionbetweenthehydraulicunitandtheelectricpanel,keepingthepowercablesseparatefromthe other service cables. 924VHE4.02 - VEH series humidifiers | 15 | 02/2022... - Page 16 Fig. 7. Hydraulic unit installation 924VHE4.02 - VEH series humidifiers | 16 | 02/2022...
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Page 17: Installation
5. INSTALLATION VEH series humidifiers are defined as "NOT ACCESSIBLE TO THE PUBLIC". 5.1 Hydraulic unit structure 5.1.1 Top • Steam outlet; 5.1.2 Front • Water drain for connection to waste water drainage pipes (Ø 40 mm (1.57 in.)); • Tear resistant cable gland for power supply cables;... -
Page 18: Water Drainage System
5.3.1 Connection specifications • Minimum diameter 40 mm (1.57 in.); • Maximumbendradius300mm(0.98ft.); • M inimumaverageinclineof45°andwithouttraps(outsidetheAHU,insiderefertotheaccessorieskits). Ifthesespecificationsarenotadheredtointheinstallation,installawaterandlimescalecollectiontankatthedrainoutletpoint outside the AHU (p/n VI) (contact the Elsteam sales office for further information). Discharge tank features • Discharge(drainage)tankwithtrapforlimescalecollection. NOTICE MALFUNCTIONING OF THE EQUIPMENT Ifthewaterhardnessisover40°f,carryoutmaintenance/manualcleaningofthetankatleasttwiceayear. -
Page 19: Steam Distribution In The Ahu
• Install all equipment in compliance with the technical specifications indicated in the relevant documentation. Cooling coil Fig. 9. Positioning the hydraulic unit in the AHU NOTE:inambienttemperatureconditionswhichmayleadtotheformationofice,itiswisetotakeallnecessaryprecautionsto prevent the supply water and the drain water from freezing and causing the humidifier to malfunction. 924VHE4.02 - VEH series humidifiers |19| 02/2022... -
Page 20: Electrical Connections
Tighten the connections in compliance with the technical specifications relating to tightening torques. WARNING MALFUNCTIONING OF THE EQUIPMENT • Performthewiringcarefully,incompliancewithelectromagneticcompatibilityandsafetyrequirements. • Carry out a full start-up test. • Makesurethewiringiscorrectfortheendapplication. • Minimisethelengthoftheconnectionsasmuchaspossible,toavoidwindingthecablesaroundelectricallyconnectedparts. • Beforeapplyingthepowersupply,checkallthewiringconnections. • Do not connect cablestounusedterminalsand/orterminalsmarkedwiththetext“Noconnection”(N.C.). 924VHE4.02 - VEH series humidifiers | 20 | 02/2022... - Page 21 Fig. 15. Suitable wiring for the power supply - VEH80 Step 35.5 mm (1.40 in.) N•m 0.28 Ø 3.5 mm (0.14 in.) lb-in. 35.40 no. of conductors Fig. 16. Suitable wiring for the power supply - VEH100 924VHE4.02 - VEH series humidifiers | 21 | 02/2022...
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Page 22: Cable Glands And Cable Routing
Fig. 17. Suitable wiring for the power supply - VEH100 Ref. Description Power cable entry on cable gland (PGx depending on model) Power cable exit on cable gland (PGx depending on model) SolenoidvalveandelectricpumppowercableexitoncableglandPG9 LevelsensorwiringexitoncableglandPG9 I/OregulationwiringentryoncableglandPG9 NOTE:whenusinganauxiliarycontactoutsidetheremotecontrolswitch,pleasecontacttheElsteamsalesoffice. 924VHE4.02 - VEH series humidifiers | 22 | 02/2022... -
Page 23: Replacing Fuses - Fuse Box
Rapido Rapido Rapido Rapido Dimensione 10x38 10x38 14x51 14x51 22x58 22x58 22x58 Fig. 18. Overload protection devices according to model 6.2.3 Replacing fuses - Fuse box Fig. 19. Overload protection device 924VHE4.02 - VEH series humidifiers | 23 | 02/2022... -
Page 24: Wiring Diagram
Connection to AHU micro-switch enabling terminal (*) 11-12 SELV alarm digital output connection 13...15 ModbusconnectionRS-485|11=RS-485+|12=RS-485-|13=RS-485GND 16-17 24 Vac electric drain pump connection 18-19 12 Vac inlet solenoid valve connection Maximum level sensor connection (*):Themicro-switchcontactshouldhaveaminimumpoleopeningof8mm(0.31in.). 924VHE4.02 - VEH series humidifiers | 24 | 02/2022... -
Page 25: User Interface And Initialisation
U - - % Set - -% Reset % PRO % Fig. 22. Main screen display with external humidity control 7.1.3 Main screen display with internal humidity control (4...20 mA) % Set Reset % PRO % Fig. 23. Main screen display with internal humidity control 924VHE4.02 - VEH series humidifiers | 25 | 02/2022... -
Page 26: Keys
Drain procedure value 7.3 Menu The VEH series humidifier menu includes the following entries: • ON/OFFmode(U); • Language (U); • Humidity control (U); • Emptying time (RESERVED - DO NOT CHANGE); • Waterfilltime(M); • Water drain time (M);... -
Page 27: Water Fill Time
7.3.18 RTH ramp Procedure for managing the internal proportional system in accordance with the incoming signal. RESERVED - DO NOT CHANGE 924VHE4.02 - VEH series humidifiers | 27 | 02/2022... -
Page 28: Power-Up And Start-Up
• When draining is complete (draining complete),settherequiredhumiditysetpointasdesired; • Set the type of control (internal/external) to be used and the required setpoint value; • W henhumidityisrequested,thehumidifierstartsaboilerfillingcycle,fillingtotheminimumwaterlevelthatguarantees rapid steam production; • T hehumidifierfullydrainsthewaterandreplacesitcyclically,performingthewashingprocedure,inordertomaintain efficienthumidifieroperatingconditions. 924VHE4.02 - VEH series humidifiers |28| 02/2022... -
Page 29: Operation
NOTICE MALFUNCTIONING OF THE EQUIPMENT The equipment should only be used and calibrated by qualified personnel who have been authorised by ELSTEAM. 8.2 Manual water drainage • Activate the “Manual drainage” function via the user interface; • The hydraulic unit starts the water draining process (the text MAINTENANCE appears on the display when the drain processiscomplete(approx.6minutes);thehumidifierneedstobeswitchedoffandonagain);... -
Page 30: Modbus Rtu Functions And Resources
9.3 Modbus functions and registers TheModbusregistersforthedeviceareorganisedaroundthefourtypesofbasicdatareferenceindicatedabove,andthistype of data is further identified by the first number of the address. 924VHE4.02 - VEH series humidifiers | 30 | 02/2022... -
Page 31: Available Modbus Commands And Data Areas
In the other cases the value is always positive or zero. • DATA SIZE: Indicates the size in data bits: • WORD = 16 bit • Byte=8bit • The “n” bits = 0...15 bit depending on the value of “n” 924VHE4.02 - VEH series humidifiers | 31 | 02/2022... -
Page 32: Veh Modbus Addresses
Level switch input polarity. 0 = NO; 1 = NC. WORD External humidity (a). WORD No water alarm. WORD Pump/drain motor alarm. WORD Drainblockedalarm. WORD Software version. WORD Emptytanktest. WORD 0 = Off; 1 = On. Current production. WORD 924VHE4.02 - VEH series humidifiers | 32 | 02/2022... -
Page 33: Diagnostics
• C heckforanybreakagesorleaksinthehumidifiertank; alarm (#) insufficient production • Indication only • Contact Elsteam customer service to replace the AT; • Alarm relay ON • M akesuretheelectricalpowercablesareconnected correctly. • C hecktheamountoflimescaleintheboilertankand in the drain ducts for the machine and for the system downstreamofthehumidifier;... -
Page 34: Maintenance
°C(122°F)). 11.1 Introduction VEH series humidifiers are designed for operation with the water specifications indicated in sub-section"5.2.1 WATER SPECIFICATIONS" ON PAGE 17. Using water with different specifications and/or with a hardness level approaching the limit of 50 °f causes maintenance to be required more frequently. -
Page 35: Regular Cleaning Of The Product And Its Components
• Disconnect the machine power supply using the external isolator; • O pentheAHUandapproachthehydraulicunit,removingthetankcoversfromtheunitasdescribedinparagraph"11.3 CLEANING THE BOILER" ON PAGE 36; • Unscrewthemanifoldfromthefilling/dischargeunit; • Remove any pieces of limescale; • Disconnecttheinletsolenoidvalve,removethefilteratthebottomandthoroughlycleanitagain; • Reassemble the inlet solenoid valve; • Re-attachthefilling/discharge unit manifold. 924VHE4.02 - VEH series humidifiers | 35 | 02/2022... -
Page 36: Cleaning The Optional Stainless Steel Discharge Tank (Vi Accessory)
LOOSE WIRING CAUSES ELECTRIC SHOCKS AND OVERHEATING Tighten the connections in compliance with the technical specifications relating to tightening torques. Tighteningtorquebetweennutandlocknut,fortheringterminal:4Nm. 11.6 Opening the electric panel Forinstallersandmaintenancepersonnelonly. Fig. 26. Opening the electric panel 924VHE4.02 - VEH series humidifiers | 36 | 02/2022... -
Page 37: Spare Parts
12. SPARE PARTS 12.1 Hydraulic unit Fig. 27. Spare parts: VEH series - Hydraulic unit Ref. Description VEHK05 VEH water filling/discharge manifold unit VEHK25 VEH inlet solenoid valve VEHK29 VEH electric drain pump VEHK10 Electrodekit for VEH10XS/VEH20XS VEHK11 ElectrodekitforVEH20S/VEH30S/VEH40S VEHK12... -
Page 38: Electric Panel
12.2 Electric panel Fig. 28. Spare parts: VEH series - Electric panel Ref. Description VEHK06 Complete control unit 0209310001 Remote control switch for VEH10 models 0209310002 Remote control switch for VEH20 models 0209310003 Remote control switch for VEH30 models 0209310005... -
Page 39: Wiring Diagrams
13. WIRING DIAGRAMS 13.1 4-Electrode models 0-400 V transformer ON/OFF ON/OFF blue blue 400 Vac power supply Fig. 29. Wiring diagram for 4-Electrode models 924VHE4.02 - VEH series humidifiers |39| 02/2022... -
Page 40: 7-Electrode Models
13.2 7-Electrode models 0-400 V transformer ON/OFF blue blue 400 Vac power supply Fig. 30. Wiring diagram for 7-Electrode models 924VHE4.02 - VEH series humidifiers | 40 | 02/2022... - Page 41 The customer (manufacturer, installer or end user) assumes all responsibility for device configuration. ELSTEAM does not assume any responsibility for potential errors and reserves the right to make any changes, at any time, without the basic functional and safety-related features being affected.