Question from a hvac student:
I have a Brute charging manifold that uses a 3/8" charging/evacuation hose. The systems I've worked on all use 1/4" fittings on the service ports. In order to use this larger hose, I'd have to use a 1/4 to 3/8 adaptor fitting. But wouldn't that cause a restriction, defeating the purpose of the larger hose? Could it be that some large systems use 3/8 fittings on their service ports?