[Rawknees'Turbo]

^^^

The liquid and gas lines are on a continuous loop from the service port manifold and through the evaporator - in cooling mode, refrigerant enters the evaporator as liquid and exits as gas (lines change size for that but it is still the "same" line/path). In other words, when you pull a vacuum, nitrogen sweep and nitrogen pressure test from that single port, you are getting all of the liquid and gas lines, and the evaporator core(s).