the pipe leaving the condensor is the liquid line, it carries the refrigerant in a liquid state . this is the smaller of the two pipes. The larger pipe is the suction line. the refrigerant is in a vapour state. Under normal operating conditions, your liquid pressure will be at 225/250 p.s.i. suction will be at 50/58 p.s.i.
fridgeman, January 2009
