USER MANUAL DV WITH CONTROLLER VERSION 1.01.13 90925372

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r.3.3Bagfilters
Releasethebagfiltercellsbyactivatingthehandlesandpulloutthefiltercellsoftheunitcasing.Theframe
profilesaretobecleanedandallsealscheckedfordamage.Thehandlesandlockingguiderailsarealsoto
be
checked toensurethattheycanoperate unobstructed. Thenewfilterbagsmustbepushedcarefully
intotheunitinordertoensurethattheyaresealedproperly.Thevariousfiltersizesshouldbeplacedinan
ordercorrespondingtothewayinwhichtheunitisdesigned, andthefiltersmusthaveverticalbags.
r.3.4Panelfilters
The
filtercellguiderailsareto becleanedbeforefittingthenewfilters.
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r.4.ChangingtheInternalBatteryinthecontroller
Note:
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ThisprocedurerequiresknowledgeofproperESDprotection;i.e. anearthedwristbandmustbeused
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Whenthealarm”InternalBattery”isactivatedandthebatteryLEDlightsupred,thebatteryforbackupof
programmemoryandreal‐timeclockhasbecometooweak.Thebatteryisreplacedas
describedbelow.A
backupcapacitorsavesthememoryandkeepstheclockrunningforatleast10minutesafterthepower
supplyisremoved.Therefore,ifthebatteryreplacementtakeslessthan10minutes,therewillbenoneed
toreloadtheprogram,andtheclockwillcontinuetorun
normally.
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ThereplacementbatterymustbeofthetypeCR2032.
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Removethecoverbypressingdownthelocking
torquesattheedgeofthecoverusingasmall
screwdriver,andatthesametimepullingtheedges
outwards.
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Gripthebatteryfirmlywithyourfingersandliftit
upwardsuntilitrisesfromitsholder.Pressthenew
batteryfirmlydownint oplace.Notethatto
preservecorrectpolarity ;thebatterycanonlybe
insertedthe“rightwayround”.
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