W.Tech RAA Series Bedienerhandbuch PDF herunterladen (Seite 12)

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Pag11

 

   Fig.10

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 7.1.6 Coil

  Thecoilhastobeobservedregularly.Ithastobeconsideredthatthisisakeyelementintheperformanceofthetower.

  Therefore,duetothepossibilitiesofscaling,amonthlycheckisrecommendedandadailypurgeofpartofthesprayingwater.

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 7.

2 Intheairflowsystem

Theairflowsystemdoesnotrequireanyspecial attention,duetoitsstrength.Nevertheless,likeanyothermovingelementithastobe

regularlychecked,followingtheinstructionsbelow.

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7.2.1 Motors

Motor maintenance is essentially limited to keeping winding and cooling ducts cl

ean, as well as attending bearings.  If the

motorhasgrease‐lubricatedbearings,alsoperformthislubrication.

Thecasingtemperaturethatcanreachedapproximatelyto90or100°C,atemperaturethatthehandcannotresistmightlead

onetothinkthatthemotorisnotoperatingcorrectly.It is not necessary

, as was the custom in the past, to take the casing

temperatureastheonlyindicatortodeterminecorrectmotoroperation.

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7.2.2 Fans

Amonthlyinspectionhastobecarriedout,inordertoremoveanypaper,leavesoranyoth erelementswhichcouldenterthe

impellers.

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 7.

3 Casingandwatercollectionbasinmaintenance

The tower has to be checked and cleaned twice at year at  least. The basin needs cleaning periodically, since otherwise the drain

outlets,overflows,valvesandcirculationpumpswouldbecomeblocked.

We recommend draining and cleaning each month, or as often as necessary, in ac

cordance with the legislation in force, so as to

preventthebuild‐upofsediment.

Atleasttwiceayearthecasingwillbechecked,aswellascleaningthetowerexternalandinternally.

Ifanycorrosionisappreciated,proceedinthefollowingway:

1 Cleantheaffectedzonebymeansofasteelbrush.

2 Azinclay

erhastobeapplied

3 ApplyanAluminiumlayeroverthezinclayer.

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 7.4 Drifteliminator

Ageneralcleaningshouldbecarriedout twiceayearatleast,proceedingtoitssubstitutionifnecessary.

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