NuAire NALSC Installation And Maintenance Manual

NuAire NALSC Installation And Maintenance Manual Manual pdf 1 page image

Isolation - Before commencing work make surethat the unit, and any control areelectrically isolated from the mains supply.1 15. 05. 17. Leaflet Number 671524The EMC Directive2014/30/EUThe Low Voltagedirective2014/35/EUIntroductionThe NALSC range of short cased axial fans aremanufactured from galvanised steel and incorporatesinlet and outlet flanges with pre-drilled bolt holes.All motors are totally enclosed and protected to IP54, classF insulated with sealed for life bearings.Impeller blades are manufactured from die cast aluminium,and sizes 315-500 use advanced sickle design. All othersizes use high efficiency aerofoil sections.The fan is designed to form part of a ducted system. If fittedwithin 1.5mm of the end of a duct run, a suitable guard or louvreshould be fitted. Anti-Vibration mountings and flexible connectorsare available as accessories and are recommended to minimisenoise and vibration. Note that the mountings MUST be used incompression only.1.0 HandlingAlways handle the fans carefully to avoid damage and distortion.Care should be taken to ensure that any slings used for liftingpurposes do not damage or pass through the impeller.Always check the unit weight on rating label before lifting.2.0 Dimensions (mm) & Weights (kg)Fan Code A B C D E F deg G Weightdia. dia. dia. dia. KgNALSC315-41 382 317 9.5 356 135 8x45 6 6.5NALSC350-41 421 356 9.5 395 135 8x45 6 7.5NALSC400-41 466 400 9.5 438 155 12x30 6 10.3NALSC450-41 515 451 9.5 487 160 12x30 6 15.8NALSC500-41 567 503 9.5 541 165 12x30 6 16.6NALSC560-41 635 559 11.5 605 210 16x22 8 17.4NALSC560-43 635 559 11.5 605 210 16x22 8 18.5NALSC630-43 707 634 11.5 674 220 16x22 8 29NALSC710-63 785 711 11.5 751 260 16x22 10 34NALSC800-63 875 797 11.5 837 280 24x15 10 39NALSC1000-83 1080 1001 11.5 1043 330 24x15 5 663.0 InstallationInstallation must be carried out by a competent person inaccordance with the appropriate authority and conforming to allstatutory and governing regulations i.e. IEE, CIBSE, COSHE etc.All duct connections must be airtight to prevent any loss ofperformance.Connection DetailsWiring should only be carried out by a qualified electrician and inaccordance with all relevant statutory and governing regula-tions.Check the fan details on the rating plate correspond withthe supply voltage and frequency.The fan unit incorporates a terminal box on the casing exterior.Units for external use require weatherproof conduit and glands.DO NOT use metal terminal box glands.Motors are designed for Direct On Line starting.Motor overloads should be set to the full load current on thefan rating label.Supply fuses should be H.R.C. type.All fans are suitable for speed control.Start Up ProcedureNote: single phase rotational direction is set at works and shouldNOT be altered. Motor winding thermal protection connectionalmust be made.Equipment should be run for approximately 30 seconds toensure correct operation. If a fault occurs, switch off.Do not restart until fault has been rectified.Testing after InstallationIf a speed control is fitted, check the speed variation is obtained.4.0 Electrical WiringNALSCSlim Cased Axial Flow FanInstallation and MaintenanceFig. 1.D dia.E72ABGF degCThree Phase motor with single speed and thermal contacts.Z2 Z1 U2 U1P ETK TKTK TK W2 U1L1 L2 L3 P EU2 V1 V2 W1Single Phase motor with capacitor and thermal contacts.L1NFig. 2.Nuaire: A Trading Division of Polypipe Limited Western Industrial Estate Caerphilly United Kingdom CF83 1NAT: 029 2088 5911 F: 029 2088 7033 E: info@nuaire.co.uk W: www.nuaire.co.uk

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