I like the look and feel although it's difficult to make out the A and I think a standard ampersand would be preferred. Also a bit more detail in the "mechanical".
Great improvements. It would be nice to see this a bit more compact and possibly accent the logo with some black to make it stand out. Also if you can add some abstract logo to make the "refrigeration experts" flow a bit more I think it would enhance the look as well.
I like the direction you went with #46. Can you make the "refrigeration experts" a bit more subtle? It seems to jump in front of the rest because of the boldness.
Can you make the A & C portion a bit smaller on #46? Also if you can make the "refrigeration experts" plain black font in italics or to match the flow of the A & C that may look better. Lastly it may look better with a single horizontal line before refrigeration experts and nothing after.