Munters ML690 - 5.2 Pre-start checks

DehumidierML420-MLT1400
5.2Pre-startchecks
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ARNING! ARNING!
ARNING!
Installation,adjustments,maintenanceandrepairsmustonlybecarriedoutbyqualiedpersonnelwhoare
awareoftherisksinvolvedwhenworkingwithequipmentoperatingwithhighelectricalvoltageandhighmachine
temperatures.
Beforestartingthedehumidierforthersttime,ensurethatthemainspowersupplyisisolatedfromthe
dehumidierandcarry-outthefollowingchecks:
1.CheckthattheModeswitchonthedehumidierisinthe“OFF”position,seesection6.4,Operatorpanel.
2.Checktheairintakeltersfordamageandproperxationandalsocheckthatallareasinsidetheunitare
clean.
3.Visuallyinspectallductingandductconnectionstomakesurethatallconnectionshavebeencorrectly
installedandthattherearenosignsofdamagetothesystem.Alsocheckthatallductsarefreefrom
obstaclesblockingtheairpassage.
4.Removethetoppanelandcheckthatnoneofthemaincontactbreakersintheelectricaloperatorpanel
havebeentripped.Fordetailsrefertothewiringdiagramsprovidedwiththeunit.
5.Checkthattheincomingpowersupplyvoltageiscorrectandthatthecablesarecorrectlyconnected.
6.Checktherotationdirectionofthefanimpellerafterconnectiontothepowersupply.Openthefront
panelofthedehumidierandtakeouttheprocesslter.Startthedehumidierandcheckthatthefan
impellerisrotating.Switchoffthedehumidierandwatchthefanimpellerjustbeforeitstopsrotating.
Checkthatitisrotatingclockwise.
7.Ifanexternalhumiditysensorisused,checkthatthesensoriscorrectlypositionedintheroomandis
correctlyconnectedtotheunit,seesection4.8,Externalhumiditysensor.
8.Settheprocessandreactivationairowdamperstothefullyopenposition.
16Commissioning190TGB-1035-H1604