Munters M120 - Dehumidifier Design; Product Description; Principle of Operation

M120
2Dehumidierdesign
2.1Productdescription
Thedehumidierisdesignedtoefcientlydehumidifyair.Itsverycompactconstructionincorporates
sectionsheldtogetherbyfourbolts.
Thesectionscontainfansthataredrivenbyacommonmotor,adirectgeardrivendesiccantrotoranda
reactivationairowheater.Thetwoendcasingscontaindistributionchamberswithisolatedsectionsthat
provideaprecisebalancefordehumidicationandreactivationairows.Itsruggedcasingisconstructed
fromcorrosionresistantdiecastaluminium.
TheelectricalequipmentcomplieswiththeEN60204-1standard.Thedehumidierismanufactured
accordingtouniformEuropeanstandardsandtheestablishedrequirementsforCE-marking.
2.2Principleofoperation
Thedesiccantrotoristheadsorptiondehumidifyingcomponentintheunit.Therotorstructureis
comprisedofalargenumberofsmallairchannels.
Thedesiccantrotorismadeofacompositematerialthatishighlyeffectiveinattractingandretainingwater
vapour.Therotorisdividedintwozones.Theairowtobedehumidied,processair,passesthroughthe
largestzoneoftherotorandthenleavestherotorasdryair.Sincetherotorrotatesslowly,theincomingair
alwaysmeetsadryzoneontherotor,thuscreatingacontinuousdehumidicationprocess.
Theairowthatisusedtodrytherotor,reactivationair,isheated.Thereactivationairpassesthrough
therotorintheoppositedirectiontotheprocessairandleavestherotoraswetair(warm,moistair).This
principleenablesthedehumidiertoworkeffectively,evenatfreezingtemperatures.
1.Dryair
2.Reactivationair
3.Processair
4.Wetair
A.Rotor
B.Filter
C.Processfan
D.Heater
E.Fanmotor
F.Reactivationfan
1
2
3
4
A
B
C
D
E
F
G
Figure2.1Principleofoperation
G.Filter
190TGB-1008-H1402Dehumidierdesign4