1. power conduit. holds electrical wires.
2,3 not sure. Could be water for humidifier and drain for AC.
4,5,6 are the refrigerant lines for the AC.
4 is a part called a dryer on the AC lines. It's a sort of filter for the refrigerant.
Last edited by JoeD; 08-09-2012 at 07:09 AM.