Esco Ascent max - Service and Maintenance; Scheduled Maintenance

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21
DuctlessFumeHoods
Chapter5–ServiceandMaintenance
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5.1ScheduledMaintenance
ProperandtimelymaintenanceiscrucialfortroublefreefunctioningofanydeviceandyourEscoductless
fumehoodisnoexceptiontothisrule.Westronglyrecommendthatyoufollowthemaintenanceschedule
suggestedhereunderinordertoobtainoptimalperformancefromyourEscoductlessfumehood.
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No. DescriptionofTasktoPerform
Maintenancetobecarriedoutevery
Week Month Quarter 1Year 2Years
1 Checkthealarmandmeasurethebasicairflow √
2 Cleantheinteriorworksurfaceandwallswithsoapwater √
3 Wipedownsashwithappropriateglasscleaner √
4 Cleantheexteriorsurfacesoftheductlessfumehood √
5 Measuretheductlessfumehoodfacevelocity √
6 Checkfans,motors,drivesandbearingsforproperoperation √
7 Checkfluorescenttubesforproperoperation√
8 Testtheoperationofairflowalarm√
9 Repairdefectandlubricateasnecessary√
10 CleanthestainlesssteelsurfaceusingMEK √
11 Re‐certification √
12 Changethefluorescentlamps  √
13 Checkfiltersaturation (checkaccordingtoFiltracheckrecommendation)
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CleaningtheHood
• Cleantheworksurfaceandwallswithsoapwater
• Cleanthesashwindowusinganappropriateglasscleaner
• Useadampclothtocleantheexteriorsurfaceofthefumehood,particularlyonthefrontandtopin
ordertoremovedustthataccumulated
there
• Usecleanwatertofinishthecleaningandwashawayanyresiduefromthesoapwaterandglass
cleaner
• Forremovingstubbornstainsorspotsonthestainlesssteelsurface,makeuseofMEK(Methyl‐Ethyl‐
Ketone).Insuchcases,makesurethatyouwashthesteelsurface
immediatelyafterwardswithclean
waterandsomeliquiddetergent.Useapolyurethaneclothorspongeforwashing.Regularlycleaning
thestainlesssteelsurfacecanhelpyouretaintheattractivefactoryfinish.
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Testtheaudibleandvisualalarm
Ifpossible,covertheairflowsensor;otherwisecovertheperforationsontheback
wall–thisshoulddisrupt
theairflowofthehoodenoughtoactivatethealarm
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Checkthehoodsfunctionality
• Checkthehood’smechanicalfunctionality;ex:sashwindow–lubricateifnecessary
• Checkthehood’selectricalfunctionality;ex:fluorescentlamp–replaceifnecessary
• Checkthehoodfor
anydefect,repairimmediately
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Checkfiltersaturation
Checkforfiltersaturationoften.Thesaturationlevelofafilterisdirectlyaffectedbytheamountofchemical
fumegeneratedbytheexperimentconductedinsidethefumehood.Useparticlecounterbelowandabove
themain(andbackup)filterandcomparethe
resultstocheckthesaturationlevelofthecarbonfilter.
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Re‐certification
Allductlessfumehoodsmustbere‐certifiedannuallybyacertifiedengineer.