A little about myself first. I've been in the HVAC/R profession for about 2 1/2 years now. I've worked the residential side for about two years now mainly doing service. Now I work for a school system maintaining the HVAC/R for them now. Been reading this site for awhile and found alot of useful info on here so I decided to join. I'll be posting questions from time to time and i'll be looking foward to hearing from you guys. -Brian