NuTone 671R Instruction Manual

Also see for 671R: Selection guide Specifications Installation instructions

Contents

NuTone 671R Instruction Manual Manual pdf 2 page image

PLANNING DUCTWORK AND WIRINGDuctwork. Use 4” round duct.2. Plan to run duct from discharge opening of fan to theoutside. For best fan performance, make the duct run asshort as possible and use a minimum number of elbows.3. Use optional ducting accessories as required.WiringPlan to run 20vAC house wiring (with ground) from thepower source through a standard wall switch.Preparation. Refer to Figure 1. Remove blower/power unit assemblyfrom the housing.(a) Unplug the power unit.(b) Remove the screw (located next to plug-in receptacle)which holds blower/power unit mounting plate in place.Do not misplace this screw.(c) Lift the mounting plate at the end near the plug-inreceptacle until blower wheel clears the scroll.(d) Remove plate by pulling its tabs out of slots in thehousing. Set blower/power unit aside until needed.2. Remove one of the wiring knockouts from housing.MOUNTING THE HOUSINGMounting Using Mounting TabsRefer to Figure 2.. Locate fan housing next to ceiling joist.2. Using wood screws (not provided) loosely attach thehousing to ceiling joist through the keyhole slots inmounting tabs.3. Adjust housing so that it will be flush with the finishedceiling. For the grille to fit properly, the housing’s rim mustnot extend beyond finished ceiling surface.4. When housing is properly adjusted, tighten screws in slots.Mounting Using Hanger Bars(hanger bars sold separately, order model HB4)Refer to Figure 3.. Insert hanger bars in slots provided in housing.2. Locate fan housing between joists so that the bottom of thehousing is even with the planned finished ceiling. Extendthe hanger bars to the joists.3. Use screws or nails (not provided) to secure hanger bars toceiling joists.INSTALLING DUCTWORK. Refer to Figure 2. Place duct collar over flanges atdischarge opening of fan. Secure collar by snapping tabsinto slots in flanges.2. Run 4” round duct from outside to fan’s discharge opening.3. Connect duct to fan’s duct collar.WIRINGAll wiring must comply with local codes and unit mustbe properly grounded.. Run 20vAC house wiring (with ground) from wall switch tofan location.2. Pull wire through access hole and into junction box.3. Refer to Figure 4. Use approved wire nuts to connecthouse supply wires to fixture as follows: white to white;black to black. Connect green or bare ground wire to greenground lead. FIGURE 4FIGURE 3FIGURE 2DUCT COLLARCOLLIER DE GAINECOLLARÍN DEL TUBOWIRING KNOCKOUTOUVERTURESPRÉAMORCÉESAGUJERO CIEGO DECABLEADOMOUNTING TABPATTES DE MONTAGELENGÜETA DE MONTAJEFLANGESCOLLERETTESBRIDASGREEN GROUNDLEADVIS VERTE DE MISE ÀLA TERREHILO VERDE DECONEXIÓN A TIERRASTANDARDWALL SWITCH(NOT INCLUDED)INTERRUPTEURMURAL STANDARD(NON INCLUS)INTERRUPTOR DEPARED ESTÁNDAR(NO SE INCLUYE)FIELD GROUNDING WIREHANGER BARS(SOLD SEPARATELY)BARRES DE SUSPENSION(VENDUES SÉPARÉMENT)BARRAS DE SUSPENSIÓN(SE VENDEN POR SEPARADO)JUNCTION BOXBOÎTE DEJONCTIONCAJA DECONEXIONESSWITCH BOXBOÎTE D’INTERRUPTEURCAJA DEL INTERRUPTOR120vAC, 60Hz HOUSEPOWERCOURANT DOMESTIQUE120V CA, 60 HzELECTRICIDAD DOMÉSTICA:120 V CA, 60 HzFIL DE MISE À LA TERREHILO DE CONEXIÓN A TIERRA2