If your first APA has had a good clean week of fermenting at proper temps, depending on how warm your house gets you could always take it out of the chest freezer and let the temps rise to 70F or so. This will not only help the yeast finish off and attenuate properly, but will also help to speed up the yeast in cleaning up any remaining diacetyl or acetaldehyde produced during the initial fermentation. Do not worry about any higher alcohols (fusels) being produced at this stage as your yeast has already completed its growth phase.
Then you could put the new APA right into the chest freezer for proper temp controlling.
exactly what he said