Power-Up And Start-Up - Elsteam VEH Series Manual

7.4 Power-up and start-up
RISK OF ELECTRIC SHOCK, EXPLOSION OR ELECTRIC ARC
• Do not install the equipment while the power supply is connected.
• Cutoffthepowersupplytoallequipment,includinganyconnecteddevices,andremovethepowerfusesbeforeremoving
anycoversorhatches,orbeforeinstalling/uninstallingaccessories,hardware,cablesorwires.
• AlwaysuseaproperlycalibratedVoltmetertomakesurethesystemispoweredoff.
• Do not touch the unshielded components or the terminals while they are live.
• Makesurethereisaneffectiveearthconnection;ifthereisnot,earththeequipment.
• Before applying voltage to the equipment:
• Makesureallprotectiveelements,suchascovers,hatchesandgrilles,arefittedand/orclosed.
• Checkallwiringconnections.
MALFUNCTIONING OF THE EQUIPMENT
• Makesurethewatermainsiscorrectlyconnected.
• Makesuretherearenotrapsinthedrainageduct.
• Makesurethesteamoutletclosureclampsareproperlytightened.
• Makesuretherearenopocketsofcondensateorthrottlinginthesteamdeliverychannel.
To start the humidifier (with humidistat connected or probe connected if in proportional mode):
• Checkthefillinganddrainnetwork(seesections:"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);
• Fitthepowerfuses;
• Connect the humidistat or the probe in accordance with the required operation (see section "6.3 WIRING DIAGRAM"
ON PAGE 24);
•  M akesurethereisavoltage-freecontactorashort-circuit("jumper")betweenterminals7-8Enablingcontact,
chapter "13. WIRING DIAGRAMS" ON PAGE 39;
• Activatetheisolatorinstalledoutsidethehumidifierandopenthewatersupplysource;
• PresstheON/OFFkeyonthedooroftheelectricpanel;
• Settherequiredhumiditysetpointto100%;
•  T hehumidifierstartsawaterfilling(filling in progress) and draining (draining in progress) phase;
• 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
DANGER
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02/2022