Viking VBCV42381 Installation Instructions - Page 7

ROOF INSTALLATION EXTERIOR-POWER VENTILATOR Exterior Power Ventilator (also see instructions supplied with ventilator kit) ROOF CUTOUT B 11/4" (3.2 cm) dia. hole 1. 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.). Bear in 12 11/16" mind, if the blower top is level with the roof peak, it will (32.2 cm) not be seen from the street. Keep this approximate REMOVE SHINGLES location in mind as you work from within the attic. 2. Mark a point halfway between rafters. 3. Drill a guide hole through the roof at this point. 20 1/2" (52.1 cm) 4. From the outside, use the guide hole as a starting point to lay out the installation. A. Use a T-square to measure 913/16" (24.9 cm) to the left of the guide hole, then 1211/16" (32.2 cm) to locate the top-left corner of the layout. B. Starting from the top-left corner, mark the rectangular C A 11" (27.9 cm) dia. hole cutout and remove only the shingles in this area. 5. Mark an 11" (27.9 cm) diameter hole centered on the guide hole. Mark the center of the 11/4" (3.2 cm) diameter electrical wiring hole. 6. Cut out the roof board(s) along the 11" (27.9 cm) diameter 291/2" (74.9 cm) 2" (5.1 cm) circle and drill a 11/4" hole as marked. 7. 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. 8. Remove roofing nails from the shingles around the top 7" (17.8 cm) 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. D 9. Center the blower ring in the 11" (27.9 cm) diameter hole, 2" (5.1 cm) making sure that the 1 ¼" (3.2 cm) diameter electrical wiring hold aligns with the hole in the wiring box. 10. Attach the blower to the roof with the six screws provided. It is recommended that the screws be located inside the blower housing. All six holes in the back panel must be filled, or any moisture that may get inside the housing could leak into the house. VEV1200 VEV1500 A 18" (45.7 cm) 21" (53.3 cm) B 15" (38.1 cm) 18" (45.7 cm) C 9 13/16' (24.9 cm) 12 5/8" (32.1 cm) D 22" (55.9 cm) 25" (63.5 cm) 11. 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. 12. Bring electrical wiring through the hole in the wiring box and secure it according to local codes. 13. Make the electrical connections with the proper connector for the type of wiring being used. Connect white to white, black to black, and the green or bare wire Ground to grounding screw Black to Black to green. 14. Replace wiring box cover and screws. Do not pinch wiring under the cover. 15. Check for free movement of the damper before installing housing cover and screws. 120 VAC Line In 16. Turn on power and check operation of the blower. White to Blue 12 WALL INSTALLATION WALL CUTOUT EXTERIOR-POWER VENTILATOR B Exterior Power Ventilator Kit 1. Choose a position on the outside wall. Min. 24" (61.0 cm from ground may vary depending on local codes or location. Make sure that no wall studs, pipes or wires 1411/16 11/4" (3.2 cm) dia. hole 3" (7.6 cm) run through the opening area. (37.3 cm) 2. From inside, mark and drill a guide hole at the center of the opening area. 3. From the outside, use the guide hoel as a starting point to lay out the installation. 29 1/2" (74.9 cm) A. Use a T-square to measure 1113/16" (30.0 cm) to the left of the guide hole, then 1411/16" (37.3 cm) tolocate the top-left corner of the layout. B. Starting from the top-left corner, mark a 22" (55.9 cm) by 291/2" (74.9 cm) rectangle on wall located from guide hole. 4. Cut a rectangular hole in the siding only. Do not cut the sheathing. Nail down all siding ends. 5. Mark an 11" (27.9 cm) diameter circle centered on the C A 11" (27.9 cm) dia. hole guide hole and mark the center of the 11/4" diameter electrical wiring hole. 6. Cut the 11" (27.9 cm) hole in the sheathing and drill the 11/4"(3.2 cm) as marked. 7. Place a large bead of caulk on the back side of the VEV1200 VEV1500 A 22" (55.9 cm) 25" (63.5 cm) B 17" (43.2 cm) 20" (50.8 cm) C 11 13/16" (30.0 cm) 14 5/8" (37.2 cm) housing along the outer edge. 8. Center the blower ring in the 11" (27.9 cm) diameter hole, making sure that the 11/4" (3.2 cm) diameter electrical wiring hole aligns with the hole in the wiring box. 9. Attach blower to the wall with the six screws provided. All six holes in the back panel must be filled, or any moisture that may get inside the housing could leak into the house. 10. Using a good grade of caulk, seal all around the mounting Ground to grounding screw Black to Black screw heads. 11. Bring electrical wiring through the hole in the wiring box and secure it according to local codes. 12. Make the electrical connections with the proper connector for the type of wire being used. Connect white to blue, black to black, and green or bare wire to grounding screw. 120 VAC Line In 13. Replace wiring box cover and screws. Do not pinch wiring under cover. 14. Check for free movement of the damper before installing housing cover and screws. White to Blue 15. Turn on power and check operation of the blower. 16. Top and side flanges of the back plate may be covered with trim strips. Do not block grill opening at bottom with trim. It will adversely affect Filter Spacer performance of the blower. FILTER/SPACER INSTALLATION 1. Install spacer/s in center or outside of filters. 2. Number of spacers and baffle filters will vary by model. Baffle Filter 13