[. . . ] All safety messageswill tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can happen if the instructions are not followed. Install microwave hood as specified in these instructions or as specified on wall and upper cabinet templates. If any damage is evident, Do Not operate the microwave oven until it is checked by an authorized service technician. [. . . ] If the existing vent is round, a rectangular-to-round adapter must be used and a rectangular 3" extension vent between the damper assembly and adapter must be installed to prevent damper from sticking. Remove contentsfrom inside microwaveoven including turn table, turn table supportand hub. Remove two screws @ from top of microwave hood located closest to the front corners. Completelyclose door and replace tape so that door does not swing openwhile microwave is being handled. forventless (recircuiating) operation , go to "Prepare cabinet opening" page 12. To vent through the wall, go to step 2 then to step 3, "Wallventing installation". To vent through the roof, go to step 2 then to step 6, "Roof-venting installation". Rotateair deflector so that deflector vanes ® will face out the rear of the cabinet and the small exhaust port @ of the air deflector faces the exhaust port ® in microwave hood. Gire el deflector de aire de manera que las aletas del deflector ® queden orientadas hacia la parte trasera del gabinete y la lumbrera de escape pequefia@ del deflector de aire quede orientada hacia la lumbrera de escape ® de la campana del horno. Checkthat deflector vanes ® face the rear of the cabinet and that the small exhaust ports @ ® face each other. Rotate air deflector so that deflector vanes ® face the top of the cabinet and the small exhaust port @ of the air deflector faces the exhaust port in microwave hood ®. Gire el deflector de aire de manera que las aletas del deflector ® queden orientadas hacia la parte superior del gabinete y la lumbrera de escape pequefia@ del deflector de aire quede orientada hacia la lumbrera de escape de la campana del homo ®. Checkthat deflector vanes ® face the top of the cabinet and that the small exhaust ports @ ® face each other. Reattach damper plate @ with four screws at each corner of the damper plate. Save bright-colored tapping screw for use later to attach damper assembly. Disconnect and move freestanding range to provideeasier access or put a protective cover over a cooktop, Removeall contents from upper cabinet, Using measuring tape, find and clearly mark the vertical centerline @ of the cabinet opening on the wall directly under the upper cabinet. note: · If front edge of cabinet is lower than back edge, adjust top of wall template to be level with front edge. Rear wall pared traseta Top of wall template must align with front edge of cabinet. [. . . ] Note: if possible, fit the damper assembly and vent connector or transition piecetogether to check that the damper opens fully before making final vent connection. Insert damper assembly through cabinet opening © so that long tab @ slides under the raised edge of damper plate. Attach short tab to damper platewith bright tapping screw not used to attach damper plate. [. . . ]