NuAire DuctMaster DSA Installation And Maintenance Manual

NuAire DuctMaster DSA Installation And Maintenance Manual Manual pdf 1 page image

IntroductionNuAire DuctMaster DSA & DSM square cased fansare produced wth duty sizes up to 21m3/sec. andincorporate either Axial flow or Mixed flow impellersdepending on the size of the unit concerned.Casings are manufactured in galvanised steel withpropriety flanges fitted to allow connection toductwork. A full width access panel allows inspectionof the motor and impeller whilst still in duct.A full range of matching ancillaries is availableincluding Silencers, Fan Guards, Resilient MountingKits, Speed Controls and Flexible Connectors.All NuAire Airmovers are tested to BS848 in our BSIapproved laboratories. This ensures all technical data isaccurate, which means that units can be specified withconfidenceDescriptionThe units are produced in seven sizes, coded DSA315to DSA1250. Units with mixed flow impellers arecoded DSM followed by impeller diameter in mm.Silencers, flexible connectors, resilient mountings andgaurds are supplied as optional extras. Short and longversions of the silencer (SIL-S) & (SIL-L) areavailable for each size. Speed controls are available formost units.HandlingEquipment must be handled carefully to avoid damageor distortion. Except for the smallest 315 size , units areprovided with four lifting eyes. If spreaders are used,they should be positioned as near the end flanges aspossible and in such a way that slings or webbing donot bear on the casing. Webbing, rope of any othermaterial must not be passed through units for liftingpurposes.Installationand MaintenanceDuctMasterSquare cased FansDSA (axial)&DSM (mixed flow)NuAire LimitedWestern Industrial EstateCaerphilly, Mid - Glamorgan CF83 1XHUnited KingdomTelephone 01222 885911Facsimile No. 01222 887033Email: info@nuaire.co.ukLeaflet No. 670478April 1997ContentsIntroduction ............................................................. 1Description ............................................................... 1Handling ................................................................... 1Installation ............................................................... 2Testing after Installation ....................................... 5Dimensions ............................................................... 6Removing & refitting the unit ............................... 6Operating the unit .................................................. 6Routine Maintenance ............................................. 7Replacement of parts .............................................. 7Schedule of Spares .................................................. 8Speed Controls (single phase)............................... 9Speed Controls (three phase)................................ 10Wiring Diagrams ..................................................... 8Electrical Information ............................................ 81Fig. 1DSA & DSM units shownin horizontal and verticalapplications.