Hi everyone I am a young hvac tech with most of my experiance being in commercial refrigeration, I have recently had the oppurtunity to get in with a heating and cooling contractor for more money and better benefits my thing is I haven't done much install so I had a couple of questions I was hoping some of you could help me with.
1. Step by step friction loss method of sizing ductwork
2. Sizing a/c and heating equipment including boilers
3. Proper method of charging
I know this is a lot but like I said I am a young tech still pretty new to the trade and believe me any help is very much appreciated.