Our crew of seven went in at 10 PM, after the store closed. Moved display cabinets and other items out of the way. The job had to be completed before opening the next day. Two complete systems taken out and new systems installed. Take out old heaters, coils, and condensers, and replace with new and more efficient Rheem systems. Job completed and store cleaned up and heaters running when we walked out at 530AM the next morning.