Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Professor I have to say that the 6th Edition of Refrigeration & A/C Technology is a fantastic read, I still have the 3rd Edition from Union School, but this is a real benefit to any tech's book collection, thanks to you and the other Authors who contributed as well