[. . . ] PRODUCT DIMENSIONS VENTING DESIGN SPECIFICATIONS This section is intended for architectural designer and builder/contractor reference only. NOTES: Vent materials needed for installation are not provided with microwave hood combination. q To avoid possible product damage, be sure to vent air outside, unless using recirculation installation. [. . . ] Do not vent exhaust air into concealed spaces, such as spaces within walls or ceilings, attics, crawl spaces or garages. q For optimal venting installation, we recommend: using roof or wall caps that have back draft dampers using a rigid metal vent q using the most direct route by minimizing the length of the vent and number of elbows to provide efficient performance q using uniformly sized vents q using duct tape to seal all joints in the vent system q using caulking compound to seal exterior wall or roof opening around cap q not installing 2 elbows together, for optimal hood performance If venting through the wall, be sure that there is proper clearance within the wall for the damper to open fully. If venting through the roof, and rectangular to round transition is used, be sure there is at least 3" (7. 6 cm) of clearance between the top of the microwave oven and the transition piece. q q 17 " (43. 8 cm) 16 " (41. 3 cm) 1 (40 5 " . +/- 0 cm) (1. 0 3/8" cm ) " (76. 0 cm) CABINET OPENING DIMENSIONS The grounded 3-prong outlet must be inside the upper cabinet. A B 30" (76. 2 cm) min. upper cabinet and side cabinet depth Roof venting Roof cap 66" (167. 6 cm) min. Wall venting Wall cap A. Grounded 3-prong outlet *30" (76. 2 cm) is typical for 66" (167. 6 cm) installation height. Vent extensio 6" (15. 2 cm) vent system = 73 ft (22. 2 m) total A 6 ft (1. 8 m) B A. 3 " x 10" to 6" (8. 3 x 25. 4 cm to 15. 2 cm) rectangular to round transition piece F. Vent extension piece, at least 3" (7. 6 cm) h 2 ft (0. 6 m) A. 2 ft (0. 6 m) + 6 ft (1. 8 m) straight = 8 ft (2. 4 m) C D 3 " x 10" (8. 3 x 25. 4 cm) vent system = 73 ft (22. 2 m) total A 6 ft (1. 8 m) B 2 ft (0. 6 m) C A. One 3 " x 10" (8. 3 x 25. 4 cm) 90° elbow = 25 ft (7. 6 m) B. [. . . ] One 3 " x 10" (8. 3 x 25. 4 cm) 90° elbow = 25 ft (7. 6 m) B. 2 ft (0. 6 m) + 6 ft (1. 8 m) straight = 8 ft (2. 4 m) If the existing vent is round, a rectangular to round transition piece must be used. [. . . ]