I have a intertherm central heat & air unit model # ASCO36BCRAA it's an old unit the product date code is 83JY-21-01. I am trying to install a relay switch for the heat and some of the wires have been pulled off there terminals and I need to know where they go,so does anyone know where I can get a wiring diagram?? If anyone can help me I would greatly appreciate it.

Is this in a mobile home?

Yes it's a moble home but it's an outside unit.

Look on the blower motor access panel or other access panels since the wiring diagrams are posted there on every unit.