Elsteam VEH Series Manual Download

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924VHE4.02 - 02/2022

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.

Summary of Contents for VEH Series

Page 1: ...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 ...

Page 2: ...SIONS AND MECHANICAL ASSEMBLY 12 4 1 Dimensions 12 4 1 1 Hydraulic unit 12 4 1 2 Electric panel 12 4 2 Installation 13 4 2 1 Minimum installation dimensions 13 4 3 Installation 14 4 3 1 Electric panel installation instructions 15 5 INSTALLATION 17 5 1 Hydraulic unit structure 17 5 1 1 Top 17 5 1 2 Front 17 5 1 3 Rear 17 5 2 Hydraulic installation 17 5 2 1 Water specifications 17 5 3 Water drainage...

Page 3: ...change interval 27 7 3 9 Manual water drainage 27 7 3 10 Nominal current setting 27 7 3 11 Wash time 27 7 3 12 0 10 V signal calibration coefficient 27 7 3 13 DP Enabling 27 7 3 14 ModBus Address 27 7 3 15 ModBus Speed 27 7 3 16 Empty Tank Test 27 7 3 17 Drain due to inactivity time 27 7 3 18 RTH ramp 27 7 4 Power up and start up 28 8 OPERATION 29 8 1 How it works 29 8 2 Manual water drainage 29 8...

Page 4: ...NANCE 34 11 1 Introduction 34 11 2 Regular cleaning of the product and its components 35 11 3 Cleaning the boiler 35 Cleaning the optional STAINLESS STEEL discharge tank VI accessory 35 Replacing the electrodes 35 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 ...

Page 5: ...nd test in relation to its specific application or use Users can send us comments and suggestions on how to improve or correct this publication Neither ELSTEAM nor any of its associates or subsidiaries shall be held responsible or liable for improper use of the information contained herein ELSTEAM has a policy of continuous development therefore ELSTEAM reserves the right to make changes and impro...

Page 6: ...h or serious injury WARNING WARNING indicates a situation of imminent danger which if not avoided may lead to death or serious injury CAUTION CAUTION indicates a potentially hazardous situation which if not avoided could cause minor or moderate injury NOTICE NOTICE indicates a situation not related to physical injuries but which if not avoided could damage the equipment NOTE The maintenance repair...

Page 7: ... hatches and grilles are fitted and or closed using a tool e g a spanner Check all wiring connections DANGER RISK OF ELECTRIC SHOCK AND FIRE Do not use the device with loads greater than those indicated in the technical data section Do not exceed the temperature and humidity ranges indicated in the technical data section Provide safety interlocks isolators of a suitable size between the power supp...

Page 8: ...VEH series humidifiers are defined as NOT ACCESSIBLE TO THE PUBLIC 1 2 Applications The VEH series is mainly used in applications requiring sterile steam including Hospital settings Medical settings Commercial settings offices industrial premises etc Industrial processes which use AHUs 1 3 Main features Isothermal humidifier Sterile steam steam with a temperature of approximately 100 C 212 F Autom...

Page 9: ... 5 m power cable kit for running from electric panel to hydraulic module VEH60 80 100 VEHK26 Hydraulic connections feedthrough kit VEHK30 Filling discharge unit kit external to AHU 0031000048 3 4 G Female water inlet hose VI Water drainage tray 0016020018 Condensate collection tank 490x690x70 AISI304 0016020019 Condensate collection tank 490x950x70AISI304 0016020020 Condensate collection tank 490x...

Page 10: ...um supply flow rate l h 300 Supply water pressure MPa bar 0 02 1 0 2 10 Supply water connection M 3 4 GAS Water drain outer diameter mm in 40 1 57 General specifications Dimensions mm in See section 4 1 DIMENSIONS ON PAGE 12 Weight hydraulic module kg 15 18 20 24 26 31 33 Electric panel IP protection degree IP54 Hydraulic module IP protection degree IPX0 Maximum installation altitude m ft 2000 656...

Page 11: ...diately in writing of any problems caused by careless or improper transportation accept the package conditionally 3 1 1 Opening the packaging Take the packages to the humidifier installation site Open the cardboard boxes removing the corner protectors Take the electric panel and the hydraulic unit out of their packaging 3 1 2 Checking the packaging contents The product package contains VEH series ...

Page 12: ...lic unit dimensions Dimension X for mm ft models VEH10XS VEH20S VEH20XS VEH30M VEH30S VEH40L VEH40S VEH60XL VEH60M VEH80L VEH100XL 4 electrodes 635 2 08 785 2 57 985 3 23 1185 3 89 1385 4 54 7 electrodes 635 2 08 785 2 57 785 2 57 985 3 23 1185 3 89 1385 4 54 4 1 2 Electric panel 350 13 78 mm in 210 8 27 500 19 68 Reset OK SET Fig 2 Electric panel dimensions ...

Page 13: ...2 Installation 4 2 1 Minimum installation dimensions Electric panel Reset OK SET 300 11 81 300 11 81 mm in 300 11 81 300 11 81 Fig 3 Minimum installation distances Hydraulic unit mm in 100 3 94 140 5 51 100 3 94 Fig 4 Minimum installation distances ...

Page 14: ...ing coil Fig 5 Minimum installation distances from coil 4 3 Installation DANGER RISK OF ELECTRIC SHOCK EXPLOSION OR ELECTRIC ARC Make sure there is an effective earth connection NOTICE FAULTY INSTALLATION When installing the electric panel only use the hooks provided ...

Page 15: ...anel must be installed in accordance with best practices Make sure the electric panel is properly secured to the wall on which it is installed 1 2 3 Fig 6 Electric panel installation Hydraulic unit Place the hydraulic unit inside the condensate tank inside the AHU Connect the inlet solenoid valve to the pipe provided Connect the discharge unit using special water drainage pipes Ø 40 mm 1 57 in Res...

Page 16: ...924VHE4 02 VEH series humidifiers 02 2022 16 Fig 7 Hydraulic unit installation ...

Page 17: ...e Hydraulic connection should offer access to the mechanical filter in the inlet solenoid valve to allow it to be cleaned Connect the drainage circuit using exclusively the D40 mm 1 57 in pipes provided If the AHU is exposed to atmospheric agents fit heating cables to the water supply and discharge pipes 5 2 1 Water specifications Water pressure between 0 02 1 MPa 0 2 10 bar inclusive Temperature ...

Page 18: ...r information Discharge tank features Discharge drainage tank with trap for limescale collection NOTICE MALFUNCTIONING OF THE EQUIPMENT If the water hardness is over 40 f carry out maintenance manual cleaning of the tank at least twice a year Water drain with pipe inside AHU Water drain with pipe inside AHU Fig 8 Drainage tank features If the water hardness reflects the optimal specifications indi...

Page 19: ... it is running 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 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 in ambient temperature c...

Page 20: ...o not open disassemble repair or modify the product Do not expose the equipment to liquids or chemicals Make sure there is an effective earth connection Before applying voltage to the equipment Make sure all protective elements such as covers hatches and grilles are fitted and or closed using a tool e g a spanner Check all wiring connections WARNING REGULATORY INCOMPATIBILITY Make sure all the equ...

Page 21: ...of conductors 3 G mm in 7 0 28 10 10 10 7 7 7 Ø 3 5 mm 0 14 in C 3 26 55 N m lb in Fig 12 Suitable wiring for the power supply VEH30 Step 26 5 mm 1 04 in Ø 3 5 mm 0 14 in mm2 AWG no of conductors 16 5 16 5 16 5 3 G mm in 7 0 28 C 3 26 55 N m lb in Fig 13 Suitable wiring for the power supply VEH40 Step 35 5 mm 1 40 in mm2 AWG no of conductors 16 5 3 G 16 5 16 5 mm in 7 0 28 Ø 3 5 mm 0 14 in C N m l...

Page 22: ... entry on cable gland PGx depending on model 2 Power cable exit on cable gland PGx depending on model 3 Solenoid valve and electric pump power cable exit on cable gland PG9 4 Level sensor wiring exit on cable gland PG9 5 I O regulation wiring entry on cable gland PG9 NOTE when using an auxiliary contact outside the remote control switch please contact the Elsteam sales office ...

Page 23: ...alling uninstalling accessories hardware fuses cables or wires Always use a properly calibrated Voltmeter to make sure the system is powered off Corrente A VEH10 VEH20 VEH30 VEH40 VEH60 VEH80 VEH100 Tipologia Dimensione 16 32 50 Rapido Rapido Rapido 10x38 10x38 14x51 14x51 22x58 80 Rapido 22x58 100 Rapido 22x58 125 Rapido 50 Rapido Fig 18 Overload protection devices according to model 6 2 3 Replac...

Page 24: ...on 5 6 SELV control signal input connection 4 20 mA 5 4 20 mA 6 4 20 mA 7 8 SELV digital input for enabling ventilation 9 10 Connection to AHU micro switch enabling terminal 11 12 SELV alarm digital output connection 13 15 Modbus connection RS 485 11 RS 485 12 RS 485 13 RS 485 GND 16 17 24 Vac electric drain pump connection 18 19 12 Vac inlet solenoid valve connection 20 Maximum level sensor conne...

Page 25: ... local regional and national standards 7 1 User interface 7 1 1 Humidifier on off switch Reset OK SET Fig 21 Humidifier on off switch 7 1 2 Main screen display with external humidity control ON OFF or 0 10 V Reset U Set R PRO OK SET Fig 22 Main screen display with external humidity control 7 1 3 Main screen display with internal humidity control 4 20 mA Reset U Set R PRO OK SET Fig 23 Main screen ...

Page 26: ... assume responsibility for changes made to parameters marked as RESERVED by personnel not expressly authorised by ELSTEAM itself 7 3 1 Switching on off To switch the VEH dehumidifier on or off press the switch on the front of the electric panel When the machine is switched on it empties the tank by activating the electric drain valve for an emptying time T If steam production is required once empt...

Page 27: ...nt setting RESERVED DO NOT CHANGE 7 3 11 Wash time Sequence of a filling cycle and a drain cycle and the subsequent reintroduction of steam production in order to dilute the concentration of mineral salts inside the boiler tank 7 3 12 0 10 V signal calibration coefficient RESERVED DO NOT CHANGE 7 3 13 DP Enabling RESERVED DO NOT CHANGE 7 3 14 ModBus Address ModBus addressing 7 3 15 ModBus Speed Mo...

Page 28: ... the humidifier with humidistat connected or probe connected if in proportional mode Check the filling and drain network see sections 5 2 HYDRAULIC INSTALLATION ON PAGE 17 5 3 WATER DRAINAGE SYSTEM ON PAGE 18 and 5 4 STEAM DISTRIBUTION IN THE AHU ON PAGE 19 Fit the power fuses Connect the humidistat or the probe in accordance with the required operation see section 6 3 WIRING DIAGRAM ON PAGE 24 Ma...

Page 29: ...rder to avoid electrical and thermal overloads To keep the saline content of the water within operational values the VEH humidifier drains small amounts of water at set intervals Regular boiler cleaning rinsing intervals can be set via the user interface on the electric panel NOTE calibration takes place in the factory For custom calibration contact ELSTEAM customer service Only personnel authoris...

Page 30: ...it in a supervision control and data acquisition SCADA system Address Function code Data Error check ADU PDU Fig 25 Framing of a message using Modbus protocol For further information relating to Modbus protocol visit the official Modbus website www modbus org 9 2 Modbus message structure Modbus RTU protocol requires the message to start with a silent time interval of at least 3 5 character times T...

Page 31: ...rticular make sure the connections are performed correctly observing the instructions in section 6 3 WIRING DIAGRAM ON PAGE 24 9 6 Modbus tables content Table content description The table below contains the information required to access the resources properly and directly There is a table Modbus address table which contains all the configuration parameters for the device and the corresponding Mo...

Page 32: ...R W WORD N 3600 64800 s Humidity control selection 0 Internal 1 External 13 R W WORD N 0 1 Num External control selection 0 ON OFF 1 Proportional 14 R W WORD N 0 1 Num Proportional external command 0 0 10 V 1 4 20 mA 15 R W WORD N 0 1 Num Level switch input selection 0 Digital input 1 High voltage input 16 R W WORD N 0 1 Num Level switch input polarity 0 NO 1 NC 17 R W WORD N 0 1 Num External humi...

Page 33: ...cale in the boiler tank and in the drain ducts for the machine and for the system downstream of the humidifier Manually clean the limescale from inside the hydraulic unit fill and drain manifold and in the drain ducts Make sure the drain pump electrical connections are correct Make sure the drain pump is working properly Make sure there are no leaks from the inlet solenoid valve High Current alarm...

Page 34: ...ONING OF THE EQUIPMENT Only use the humidifier with the water specifications indicated in this manual If frequent maintenance takes place check the quality of the water supply Furthermore the hydraulic unit should be cleaned promptly when The drain water is very dark reddish black and demonstrates the start of electrode corrosion caused by the highly aggressive nature of concentrated water replace...

Page 35: ...start up Make sure there are no leaks after an hour of continuous operation When changing parts Make sure there are no leaks after an hour of continuous operation Every 5 days Make sure the humidifier works properly based on the instructions provided in this manual Make sure there are no leaks in the hydraulic system Make sure there is no unusual operation Every 30 days Make sure there are no bloc...

Page 36: ...lacing the electrodes Drain the humidifier Disconnect the machine power supply using the external isolator Open the top of the tank inside the AHU Use the 2 screws at the front to disconnect the filling discharge manifold from the front of the hydraulic unit Loosen the 4 screws on the sides of the top cover and remove the 2 covers Unscrew the nuts securing the electrodes lift them from the part op...

Page 37: ...H electric drain pump 4 VEHK10 Electrode kit for VEH10XS VEH20XS VEHK11 Electrode kit for VEH20S VEH30S VEH40S VEHK12 Electrode kit for VEH30M VEH60M VEHK13 Electrode kit for VEH40L VEH80L VEHK14 Electrode kit for VEH60XL VEH100XL 5 VEHK15 VEH hydraulic unit gasket kit 6 VEHK27 Power cable kit for running from electric panel to hydraulic module for VEH10 20 30 40 VEHK28 Power cable kit for running...

Page 38: ...ote control switch for VEH60 models 0209710007 Remote control switch for VEH80 models 0209310006 Remote control switch for VEH100 models 3 0101014020 400 Vac transformer for VEH models 4 0150130001 Fuse box for VEH10 20 models 0150130002 Fuse box for VEH30 40 models 0150130003 Fuse box for VEH60 80 100 models 5 VEHK18 Fuse kit for VEH10 gG10x38 16 A VEHK19 Fuse kit for VEH20 gG10x38 32 A VEHK20 Fu...

Page 39: ...10 V CONTACTS ON OFF CONTACTS ALARM CONTACTS black HUMIDIFIER BODY IN CONTROL UNIT black PHASE 2 PHASE 1 PHASE 3 grey grey brown brown RL3 blue brown blue white DRAIN SV 4 20 mA CONTACTS black grey INLET SOLENOID VALVE DRAIN PUMP MAXIMUM LEVEL green brown 1 2 3 4 5 6 7 8 9 10 13 14 15 18 19 16 17 20 brown green black grey red orange black 11 12 ENABLING CONTACTS blue blue blue blue blue blue blue ...

Page 40: ... black orange purple black blue white white 1 J5 green green 1 J10 black black grey grey PHASE 3 PHASE 1 PHASE 2 brown brown white blue brown blue RL3 green black blue blue blue blue blue blue blue FUSES SW6 ON OFF ENABLING CONTACTS 0 10 V CONTACTS ON OFF CONTACTS ALARM CONTACTS 4 20 mA CONTACTS INLET SOLENOID VALVE DRAIN PUMP MAXIMUM LEVEL 1 2 3 4 5 6 7 8 9 10 13 14 15 18 19 16 17 20 11 12 ENABLI...

Page 41: ...y 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 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 t...

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