johnson controls

I have a A19AAT johnson control for my fermentation fridge. It's out in my patio and it's going to get really cold out there, I want to do the thing where I put a light bulb in the fridge to warm it up to ferm temps in the winter. For that I want to "reverse" my control to turn on the lamp when the temp dips below 65. Anyone know how to do that? I don't have the original manual.

Thanks in advance!

 

You can download the manual from their web site so that's what I'd suggest. Beyond that, I believe there are two basic options. The first being you switch to the NC contact. The second being you flip one of the jumpers. And well I guess there is a third, which is use an STC-1000, which has separate heating and cooling contacts.

 

Use the "make on drop" contact to power the bulb.

 

Multiposting is bad. Don't multipost, mmmmkay?

Here is the manual for that controller. It does not appear to be capable of controlling a heating unit.

Cheers!

 

I just had an Office Space flashback. Thanks!:rockin: