Vintage Air Drier 240709 Trinary Switch Install

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04-22-2026, 01:23 PM
Papa

Vintage Air Drier 240709 Trinary Switch Install

I'm scratching my head on how to mount the trinary switch to the drier. I have a Vintage Air drier with part #240709 on the label. My confusion that the drier doesn't seem to have the threaded port for the trinary switch to mount to. There is an inlet port, outlet port, but where the instructions show a mounting boss for the switch, there are hex heads that look like they are part of the case, not something that can be removed. There does appear to be a small port on the top, covered, that from what I can find would be for a pressure switch. What am I missing?

https://thefactoryfiveforum.com/atta...1&d=1776882077
04-22-2026, 02:44 PM
Papa

So, I called Vintage Air and spoke with a very helpful technician that helped me resolve my question. Those hex heads that look like they are cast, are actually threaded in before the part is painted. He told me to verify the flow direction and remove the bolt on the appropriate side. It's done now.

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