I have a old rheem package unit with a gas valve that has the thermocouple plugged into a black box that plugs into the gas valve.. . my question is I need help on installing a retro fit kit.. it looks pretty easy but looks like I may have a couple extra wires.. that's where I'm having problems no wiring diag. can anyone help

I looked around and could not find a diagram for a old rheem pkg unit.

Look on the back of the blower motor access door or the service access door.

Sorry but that is all the help I can be.

Any instructions with the kit? I hate to ask that, but it never ceases to amaze me how often someone wants to just take something out of the box and start plugging stuff in without reading the instructions.