A friend sold me a AC unit. Got the whole thing, including the unit that sits outside, air handler with coil inside. He took it out of his rental. The unit is 5 years old or less, and when I try to look it up on Carriers website, it doesn't seem to recognize the model. It is a 38BRG060300. Had a AC guy look at it, he thinks it is a 3 ton, but he is not a Carrier dealer. Want to get it installed in my shop before summer.