NuAire OPUS 30 Installation And Maintenance Manual

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OPUS 30 and 60Duct Mounted ('M' range)Domestic Extract FansInstallationand MaintenanceNuAire LimitedWestern Industrial Estate, Caerphilly,Mid Glamorgan CF83 1XHTelephone: 02920 885911Facsimile: 02920 887033Email: info@nuaire.co.ukwww.nuaire.co.ukLeaflet 670445DECEMBER 2001IntroductionNuaire’s OPUS 30 & 60 range of duct mounted domestic extractfans are designed to extract small volumes of air through 100 mmdia. pipes, with provision for adding a 50 mm dia. subsidiary unitto extract air simultaneously from a second room.Units are available with one or two fans and in two duty sizes32l/s and 55l/s Inlet is through a 100 mm dia.pipe located on thefront of the unit.Units can be fitted with a selection of controls which enablethem to be linked to light switches, either directly or throughrun-on circuits.Typical arrangementsDuct mounting - horizontal or vertical*One room extractionTwo room extractionWall mountingCodingM Basic unit with single fanMS Single fan unit incorporating a run-on circuit,adjustable between 5 and 30 mins.2MAS Twin unit incorporating both run-on and fan failuredetection/change over circuits.MX Single fan unit providing continuous low duty runningwith boost when room light is switched on.(Opus 30 only)Installationa) It is assumed that a solid non reverberant mounting posi-tion has been prepared inside the duct passage area and thenecessary ductwork already installed with adequate clear-ance on the inlet side to allow fitting of the flexible ductingsupplied with the unit. It is also assumed that the electricalconnections are in position and if a second room is to beventilated, the ductwork for a subsidiary spigot has beenmade ready.Contents PageIntroduction...............................................................1Arrangements and Codes..........................................1Installation..................................................................2Dimensions and Ancillaries.......................................3Maintenance...............................................................3Electrical Diagrams............................................. .......4Certification ...............................................................5Fig. 1 General view Opus 60MFalse ceilingSubsidiaryinletMountingbracketDischarge must beuppermostVERTICAL MOUNTINGInlet grilleAccess panelFlexibleductingIMPORTANT WARNINGInstallation and servicing MUST be carried outby electrically quaIified personnel.The unit MUST BE TOTALLY ISOLATED from theelectrical supply before removing covers.NOTE internal input socket will be exposed andMAY BE LIVE with the fan module removed.See ‘ISOLATION’ notes.1