Trying to calculate how many amps a 480/277volt 3phase 200 amp panel can handle total,is it 200 amps each leg or 200 all together would like a simple answer please

I am in there process of replacing my 5 ton air conditioning unit. One of the contractors told me that my refrigeration line going into my outside unit is the incorrect size. He said I have a 7/8" line and this unit requires a 1 1/8" refrigeration line. What is the correct size of the refrigeration...

What's best approach... remove... solder line... more expensive... or replace. Thanks

Hi all. I currently have a 30Amp breaker on 10 gauge wire for the air handler and heat strip. This was a new install and the local inspector seems to think that 30amps is not enough. I took a picture of the specs and uploaded below. What breaker/wire is needed to be in compliance? Any help is...

Hi, My uncle is a retired electrician and says that if I can purchase a 2 ton air conditioner - preferably a Carrier with R410A that he will install it for us. Can I buy just the unit somewhere in my area? Thanks