I've personally never seen or heard of Mr. Winter.
Mr Winter phone # 800-327-3371.
I take it then that there's no data sticker somewhere around the door on the inside of the cooler?
Their website is http://www.mrwinterinc.com/. Their emphasis on the site appears to be on the box design & construction. Call them to find out. The refrigeration package might be from another vendor (i.e., Heatcraft/Bohn).
Recommend getting pictures, frame dimensions, coil dimensions and other critical details. Posting the pictures here may be helpful.