1. Remove the front cover of the air conditioner and use a hammer and pry bar to remove trim pieces the frame holding the unit in place (figure A).
2. Put on heavy work gloves to protect your hands and carefully lift air conditioner unit out of window. It may be wise to enlist a friend to help.
3. Remove screws and/or nails holding cover in place then go outside and take the cover off the window (figure B).
4. Put on the safety glasses, chip away glazing from window and remove glass from top section of window. Remove the center divider as well.
5. Many times older window openings may not be perfectly square, meaning the corners are not perfect 90-degree angles. Use the sliding T-bevel to determine the precise angle of each corner (figure C), and transfer those measurements to the high -impact plastic sheet.
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