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manual abstract
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. 2. Mark and drill a guide hole centered between roof rafters. 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" 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. PREPARE THE INSTALLATION LOCATION WALL INSTALLATIONS 1. Choose a position on the outside wall. Make sure that no wall studs, pipes or wires run through the opening area. 2. From inside, mark and drill a guide hole centered between wall studs. 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) 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 wall. D. Mark and cut a 1." diameter hole through the wall where shown. 25" 2" 7" 29-1/2" 2" 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 INSTALL THE BLOWER INSTALL THE BLOWER ROOF INSTALLATIONS WALL 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 cover. 10. Make sure damper opens and closes freely. 1. Place a large bead of caulk on the back side of the housing all along the outer edges. 2. 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. 3. Attach blower to the wall with the six (6) screws provided. It is recommended that the screws be located inside the blower housing. Drill pilot holes if necessary. 4. Using a good grade of caulk, seal all around the mounting screw heads. 5. 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 6. Make the electrical connections with the proper connector for the type of wire being used. Connect black to blue, white to brown, and green or bare wire to grounding screw. 7. Replace cover and screws. Do not pinch wiring under cover. 8. Make sure damper opens and closes freely. 9. Top and side flanges of the back plate may be covered with trim strips. Do not block grille opening at bottom with trim. It will adversely affect performance of the blower. 3 SERVICE PARTS Model 336 KEY PART NO. NO. DESCRIPTION 1 98009538 Cover 2 99100531 Foam Seal 3 98009539 Motor Support 4 98009541 Damper Flap (2 req.) 5 99140145 Damper Spring (2 req.) 6 98009537 Grille 7 99080479 Blower Assembly 8 99271203 Capaci...