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ALL INSTALLATIONS 3. Avoid pipes, wires, or other ductwork that may be running through the wall. 1. Locate the blower so the length of the duct run and number NOTE: Horizontal discharge requires relocation of the duct of elbows needed are kept to a minimum. opening cover plate. See hood manual for instructions. MODEL 336 EXTERIOR BLOWER WALL HOOD CANOPY (island canopy available) 10" ROUND DUCT SOFFIT ROUGH-IN PLATE 24" or 27" 18" DUCT OPENING COVER PLATE TYPICAL ROOF MOUNTED INSTALLATION (Vertical discharge) MODEL 336 EXTERIOR BLOWER WALL HOOD CANOPY (island canopy available) 10" ROUND DUCT SOFFIT ROUGH-IN PLATE 24" or 27" 18" 10" ROUND ELBOW DUCT OPENING COVER PLATE TYPICAL WALL MOUNTED INSTALLATION (Vertical discharge - elbow to horizontal) WALL HOOD CANOPY (island canopy available) 10" ROUND DUCT SOFFIT ROUGH-IN PLATE24" or 27" 18" DUCT OPENING COVER PLATE TYPICAL WALL MOUNTED INSTALLATION (Horizontal discharge) MODEL 336 EXTERIOR BLOWER INSTALLER: Leave This Manual With The Homeowner HOMEOWNER: Use And Care Information On Page 4 Broan at ::rangehoods.com is a division of kitchen::accessories UNLIMITED ::rangehoods.com Call 1-800-667-8721 anywhere in the US and Canada -PREPARE THE INSTALLATION PREPARE THE INSTALLATION LOCATION LOCATION ROOF INSTALLATIONS WALL INSTALLATIONS 1. 2. Locate the blower on the rear slope of the roof. Place it in a location to minimize duct run. The location should be free of obstacles (T.V. leads, electrical lines, etc.). If the blower top is level with the roof peak, it will not be seen from the street. Keep this approximate location in mind as you work from within the attic. Mark and drill a guide hole centered between roof rafters. 1. 2. Choose a position on the outside wall. Make sure that no wall studs, pipes or wires run through the opening area. From inside, mark and drill a guide hole centered between wall studs. 3. From the outside, use the guide hole as a starting point to lay out the installation: A. Use a T-square to measure 125/8" to the left of the guide hole, then up 1211/16" to locate the top-left corner of the layout. B. Starting from the top-left corner, mark the rectangular cutout (21" W x 20." H) and remove only the shingles in this area. C. Mark an 11" diameter hole centered on the guide hole. Cut this hole through the roof board(s). D. Mark and cut a 1." diameter hole through the roof board(s) where shown. 3. From the outside, use the guide hole as a starting point to lay out the installation: A. Use a T-square to measure 145/8" to the left of the guide hole, then up 1411/16" to locate the top-left corner of the layout. B. Starting from the top-left corner, mark the rectangular cutout (25" W x 29." H) and remove only the siding in this area. C. Mark an 11" diameter hole centered on the guide hole. Cut this hole through the roof board(s). D. Mark and cut a 1." diameter hole through the roof board(s) where shown. 4. For flat roof installations, build a curb that will mount the blower at a minimum pitch of 2/12. Discharge end of the blower should be pointed away from prevailing winds. 2 11" dia. hole20." 11" dia. hole 1" OO 911/16" 20." OO 18" 125/8" 18" 1211/16" 1." dia. hole1." dia. hole Roof RafterRoof RafterRoof Rafter REMOVE SHINGLESREMOVE SHINGLES Roof Rafter Guide hole(centeredbetween rafters) Guide hole (centered between rafters) 1211/16" 21" 11" dia. holeGuide hole(centered between studs) 25" 29." 1411/16" 11145/8" Wall StudWall Stud11" dia. hole 20" 1." dia. hole1." dia. hole 3" OO O REMOVESIDINGREMOVE SIDING Guide hole (centered between studs) 25" 2" 7" 29-1/2" 2" Broan at ::rangehoods.com is a division of kitchen::accessories UNLIMITED ::rangehoods.com Call 1-800-667-8721 anywhere in the US and Canada -INSTALL THE BLOWER ROOF INSTALLATIONS 1. Remove the cover and screws. 2. Attach an appropriate U.L. approved cable connector in the hole at the rear of the wiring box. 3. Remove roofing nails from shingles around the TOP and SIDES of the cutout area only.Carefully lift the shingles to allow the back flashing sheet on the blower housing to fit under them. 4. Center the blower ring in the 11" diameter hole, making sure that the 1." diameter electrical wiring hole aligns with the hole in the wiring box. 5. Attach the blower to the roof with six (6) screws provided. It is recommended that the screws be located inside the blower housing. Drill pilot holes if necessary. 6. Using a good grade of roofing cement, seal all of the shingles around the housing and flashing sheet as well as the mounting screw heads. 7. Bring electrical wiring through the hole in the wiring box and secure it according to local codes. BLACK TO BLUE 120 VAC LINE IN WHITE TO BROWN GROUND TO GROUNDING SCREW 8. Make the electrical connections with the proper connector for the type of wiring being used. Connect black to blue, white to brown, and the green or bare wire to grounding screw. 9. Replace cover and screws. Do not pinch wiring under the cov...