Hello - I'm new here. I'm an HVAC cross-over. Long awaited, now I think I'm ready and the opportunities exist. I'm decent with HVAC, I don't like to be hurried, I like to be careful and certain before throwing that switch. I like controls and logic problems. I like dirty hands.
I've been reading many posts here. Needless to say the naming of so many different refrigerants is daunting and leads me to wonder:
When you walk up to a reach in refrigerator at a restaurant for the first time and find that it's old, it's grimy, it smells bad, and it's warm - how do you now the gas is really the name plate stated R12? I mean surely some one has worked on this thing. Do you pull out the mystery gas and start anew?
That lead me to the follow-up: so how many recovery tanks are on your truck??? One for each refrigerant? Really?