If you can't find it, let me know. We just took the old Armstrong unit off our '72, and it's still sitting in the garage. I can look for the wiring diagram and post a picture for you.
The diagram is missing from the unit. I have looked all over the unit inside n out. It is working but their is 2 wires that look red in color that are tapedon the ends and would like to know if they belong hooked up.
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