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[n:a]VsNORHARCA PP ' ENRON N SU LY NS OPERATION INSTRUCTIONS AND PARTS MANUAL MODELS: SF5, SF5-3PH, SF7, SF7-3PH, SF8, SF8-3PH, SF9, SF9-3PH, SF10, SF10-3PH GENERAL SAFETY Rotating parts,(pulleys,shafts and belts)on fans should not be exposed.Where these components are not protected by ductwork,cabinets or covers,appropriate guards should be employed to restrict exposure to rotating parts.Access doors should not be opened with the fan operating to avoid foreign objects being drawn into the system. On initial start-up, a careful inspection should be carried out to ensure no foreign material is present which could become airborne in the system. Read installation and operation instructions carefully before attempting to install, operate or service NAKS SF Series Blowers. Failure to comply with instructions could result in personal injury and/or property damage.Retain instructions for future reference. A" XA �A�y Z\ T D B Y I L> ® D M _L �F E F�-- 05/16*HOLES y FOR FASTENING REMOVE CAP FOR BOTTOM VIEW TO CURB FILTER ACCESS MODEL . INSIDE SIZE QUANTITY SF5/SF5-3PH SF7/SF7-3PH 22• 24• 11 7/8° 13 1/4" 4 7/16" 3 1/4" 6 7/8" 16" 181/8' 197/8" 16'x 25"x 1" 1 21 7/8"x 21 7/8' TBA SF8/SF8-3PH 32" 32" 13 3/4' 15 7/8" 8 1/16" 4 1/4" 14" 25" 24 5/8" 25" 16"x 25"x 1" 2 31 7/8"x 31 7/8' TBA SF9/SF9-3PH SF10/SF10-3PH 32" 32" 16 1/8" 18 7/8" 6 9/16" 3 7/8" 12 7/8" 25" 24 5/8" 25" 16"x 25"x 1" 2 31 7/8"x 31 7/8" TBA *Curb size to be smaller than inside cabinet to allow for flashing and roofing. **Includes filter section BEFORE YOU BEGIN Inspect unit for damage, report any shipping damage to carrier. Check all fasteners, re-tighten as required. Rotate the blower wheel by hand to ensure free rotation. If rubbing occurs, loosen the set screw(s), re-position the wheel to the shaft center, re-tighten set screws. INSTALLATION Remove hood and filters from inside the cabinet. Caulk top of curb before setting unit in place. (Curb must be smaller than unit"A" dimension).Secure unit to curb through holes located around the bottom of the unit. Tighten wheel set screw. MOTOR, PULLEYS & BELTS (See Table next page) 1. Mount the blower pulley on the blower shaft and tighten the set screw securely on the key of the shaft. 2. Mount the motor pulley on the motor shaft. Leave some clearance between the pulley and the motor end bell.Tighten the set screws on the key of the motor shaft. 3. Install the motor on the motor platform using the hardware provided. 4. With the platform in its minimum position, install the V-belt within the pulley grooves. Position the motor on the motor platform to ensure proper pulley alignment(see Figure 1)and secure to the motor platform. (A straight edge across the face of the driven pulley should be parallel to the belt once proper alignment has been achieved). Note:Adjustments in the variable speed pulley require pulley re-alignment.