Quote:
Originally Posted by DarkoNova
So what's the trinary switch do that the binary switch doesn't?
I'm an a/c noob.  |
The binary is only to cycle the a/c clutch. It screws into the drier unit and if the pressure gets too low it will kick the clutch out.
The TRINARY does that...plus it will complete a ground loop to you fan relay when the a/c head pressure gets to 250kpa (don't quote me on that number).
That way, your electric fan does NOT run when you are going down the highway just because the a/c is on. It will only cycle the fan when it is needed.
If you don't have an electric fan on your radiator then you don't need the Trinary switch.