Trane XR90 Pressure Switch Connection

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Trane80

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I have a Trane XR90 gas furnace that has the improper pressure switch installed. I have the correct switch ready to install, but need to know to which terminals the red & yellow wires connect.

I've included a photo of the correct pressure switch...which is part number SWT02968. It has two vacuum ports and two spades.

There is no repair manual to which I can refer, so perhaps someone could advise me as to where the 2 wire connections are placed on this particular pressure switch.

Thanks and any help is greatly appreciated!

swt02968-pressure-switch3_DCE-332x400.jpg
 
couldn't find anything online either except this message on the Trane site:
Please Note: This website only shows current product catalogs, technical data and manuals. For previous versions or literature of older products, please contact your local Trane sales office.
 
If it is a switch, it should work both ways I would think.
 
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