In addition to my previous post, it looks like one may use an SSR control with The SYL-2352 to achieve the same result. I have used the Auber controllers with relay outputs in the past and every one of them has blown the internal relay within 6-8 months of use (no I did not exceed the amp...
I'm not sure if anyone has seen this, and I know this post is relatively old, however, here is the info and link the auber instruments manual for the Syl-2352 which covers how to wire the controller for both controlling your refrig/freezer AND heating with the same control...