8.Cut filler board (D) to size with utility knife. Cut in from the outside edges. The outside edges should have screw holes in them.
9.Apply %” (10 mm) seal strip (left over from Step 2) to the filler boards. Apply seal strips to the bottom front and outside front edges of the filler boards.
10.Attach left filler board to cabinet.
Pull cabinet part way out of the window. Then attach the left filler board to the front of the left side mounting bracket. Use W’ (12.5 mm)
11.Position left filler board in window channel. Place cabinet back into window. Make sure left filler board sits tightly against the window channel.
12.Attach right filler board to cabinet. Insert right filler board into right window channel. Push filler board against right side mounting bracket and attach it with W’ (12.5 mm)
13.Apply foam seal (F). Measure from right inside edge of window frame to left inside edge. Then cut the foam seal, with square ends, to fit. Hold the cabinet to prevent it from falling. Raise window sash and place adhesive side of foam seal along underside of window.
14.Make sure filler boards are as far for- ward (toward inside room) in window channels as possible.
15.insert foam blocks (G) into window channels - behind filler boards about 3- 4 inches from the top and bottom edges. The blocks keep the filler board tight to the window channel.
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