Sorry for the delay in responding.
I have a condenser similar to the one shown in the jeff5may's post. It can handle up to four units, 4 sets of high/low ports labeled A-D. It also has another set of high/low ports with the service port.
My question is, How can you pressure test and vacuum each indoor unit separately if you only have one service port?
I may be explaining this wrong so I hope to take some pictures tonight and post them for further clarification.
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