>>2872161
>I grasp the concept of how they work
You clearly don’t though. Think for a second how the refrigeration CYCLE works. Look at the day1 diagram I posted for you. Why would a CYCLE need 2 pipes? One is carrying refrigerant TO the evaporation coil, one is carrying heat and refrigerant AWAY from the evap coil. I’m honestly not trying to be mean here, but you’re making this pointlessly difficult. Either do the work of learning or get 2 hvac companies to give different bids and explanations. No one is going to spoonfeed you information to be a Karen to the hvac guy.
>my copper pipe is sweating an awful lot, is this a problem? Can this be corrected? If that is your issue then ask that way.

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