Electrical Connections; Before You Start; Connection Best Practice; Wiring Best Practices - Elsteam VEH Series Manual

6. ELECTRICAL CONNECTIONS

6.1 Before you start

Read this manual carefully before installing the equipment.
Inparticular,thesafetyinstructions,electricalrequirementsandcurrentregulationsforthemachineortheprocessinwhich
this device is involved must be observed.
The use and application of the information contained herein requires experience in the design and installation of humidification
systems.Onlytheuser,integratorormanufacturerofthemachinecanbefamiliarwithalltheconditionsandfactorswhich
ariseduringinstallationandconfiguration,operationandmaintenanceofthemachineortheprocess,andassuchcanidentify
therelevantautomationequipmentandthecorrespondinginterlocksandsafetysystemswhichcanbeusedeffectivelyand
appropriately.Whenselectingautomationandcontrolequipmentandotherconnectedequipmentandsoftware,foraparticular
application,youmustconsiderallapplicablelocal,regionalandnationalstandardsand/orregulations.
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.
• Cutoffthepowersupplytoallequipment,includinganyconnecteddevices,beforeremovinganycoversorhatches,or
beforeinstalling/uninstallingaccessories,hardware,cablesorwires.
• Providesafetyinterlocks(isolators)ofasuitablesizebetweenthepowersupplyandthehumidifier,withacontactopening
distance of at least 3 mm for each pole.
• AlwaysuseaproperlycalibratedVoltmetertomakesurethesystemispoweredoff.
• Themaintenance,repair,installationanduseoftheequipmentmustonlybeentrustedtoqualifiedpersonnel.
• Do not touch the unshielded components or the terminals while they are live.
• Donotopen,disassemble,repairormodifytheproduct.
• Do not expose the equipment to liquids or chemicals.
• Makesurethereisaneffectiveearthconnection.
• Before applying voltage to the equipment:
• Makesureallprotectiveelements,suchascovers,hatchesandgrilles,arefittedand/orclosedusingatool(e.g.aspanner).
• Checkallwiringconnections.
REGULATORY INCOMPATIBILITY
Makesurealltheequipmentusedandsystemsdesignedconformtocurrentlocal,regionalandnationalstandards.

6.2 Connection best practice

6.2.1 Wiring best practices

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.
• Providesafetyinterlocks(isolators)ofasuitablesizebetweenthepowersupplyandthehumidifier.
• Only use cables with a suitable cross-section as indicated in the section "Wiring best practices".
When wiring the humidifiers,observethefollowinginstructions:
• Makesuretheoperatingenvironmentandconditionsfallwithinthespecifiedvalues.
• Usecableswiththecorrectdiameter,suitedtothevoltageandcurrentrequirements.
• Use double-insulated cablessuitableforoutdooruse(minimumrequirement:H05RN-F)whichalsoincludeanearthwire.
LOOSE WIRING CAUSES ELECTRIC SHOCKS AND OVERHEATING
Tighten the connections in compliance with the technical specifications relating to tightening torques.
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
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| 20 | 02/2022