There doesn't seem to be a cold air intake on this new furnace we bought. It's a Frigidaire 90+.
Of course, the furnace didn't come with a manual so we can't figure out if it needs one.
Info anyone?

Not sure on a fridgidaire but often you can remve a plate from the bottom, but most of the time you are going to cut a whole in the side of the blower compartment the same size as your filter rack or side drop.