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Insulated flexible type duct work (recommended for all bathroom exhaust applications) will result in much quieter operation. It is recommended that a minimum 8' of insulated flexible ducting be used between any exhaust grill and fan for low noise level. b) Service accessibility: Fan location should allow sufficient access for service. SECTION 2 Installing the Fan 1. Using the 1" wood screws provided, attach the fan mounting bracket to a support beam at the selected location (Figure 1). NOTE: Fan mounting can be at any point along the duct and in Figure 1 or Vertical Mounting Bracket Stud Bracket Joist Horizontal Mounting any angle, however, vertical mounting is recommended to reduce condensation buildup in the fan. If a horizontal installation is necessary and condensation buildup may pose a problem, wrap insulation around the fan to minimize buildup. 2. Attach fan to the mounting bracket with the three 7/16" sheet metal screws provided, making sure the wiring box is positioned for easy access (Figure 2). Bracket Stud Figure 2 Fan Screws NOTE: Bracket is provided with rubber vibration isolation grommets to prevent the transmission of sound through the structure. Be careful not to over tighten. Also, care should be taken not to strip the plastic housing. Screws are self tapping and do not require pilot holes. Pilot holes no larger than 1/16" can be used to ease the installation however. SECTION 3 Installing Supply/Exhaust Grill 1. Select the grill mounting point within the area to be ventilated that does not interfere with a ceiling joist. To ease installation, locations of framing beams within the walls or joists supporting the ceiling should be considered. Collar/damper is provided with a perforated hanging strap for attachment directly to a beam or joist. Allow sufficient space between the collar/damper and the beam to attach the duct work. If the location of the grill does not allow direct attachment, a cross-member mounted to the framing should be used. 2. Bend the mounting straps attached to the collar outward so they are straight across (Figure 3). Figure 3 Collar/Damper Mounting Strap MountingStrap SECTION 4 New Construction 1. Install the collar/damper in the selected location using the provided 1" wood screws through the mounting strap. The mounting height is determined by the thickness of the final wall/ceiling material. Ensure that the edge of the collar/damper will be flush with the finished wall/ceiling material (Figure 4). 5S7635036 New 9-06 2 of 12 2. Once the wall/ceiling material is in place, install the grill into the collar by pushing it firmly inward towards the collar until it fits flush against the wall/ceiling material (Figure 5). Figure 4 Collar/Damper Wall/Ceiling Material Joist/Stud Collar/Damper Screws Joist/Stud Figure 4 Collar/Damper Wall/Ceiling Material Joist/Stud Collar/Damper Screws Joist/Stud Grill Figure 5 Collar/Damper SECTION 5 Existing Construction 1. Place the collar/damper in the sele...

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