Question about Fridge Thermostat Controller

Doubtful. Does this unit have two internal thermostats? Probably not, and the outboard controller isn't going to make that happen.

Most refrigerator/freezer appliances use one compressor and one thermostat. I believe LG, maybe Samsung, has a two compressor unit, one mini compressor for each side and each with a t-stat. This is an energy saving feature, but a digression.

The typical unit uses a venting system to direct cold air to the freezer with a bit of cold air also going to the refrigerator.. You set the dial to the desired refrigerator temp and the compressor works to keep the fridge within the desired temp. The freezer on the other hand stays well below 32, maybe 10, maybe 0. Doesn't matter as long as the milk on the other side doesn't freeze or get too warm.

So the answer is no. You can't easily get two controlled temps in your fridge/freezer combo.
But you can get a range in the fridge and open the freezer vent wide open. That will provide a warmer freezer if you are careful. No guarantees. And this assumes you have a manual vent that can be adjusted. Even then you'll likely get freezing temps on the other side.
Cheers.

 

Short answer is no. Long answer: maybe (or maybe not).

Background: home fridges have a freezer and fridge space. All the cold air comes in the freezer section, typically around -20F. Then a damper will vent some of this to the fridge space (40'ish). You have two controls in most all fridges: the freezer section determines how cold the frozen food is to be . . . the fridge section determines the temp of non-frozen foods, usually some dorky-settings like A - - H. Most people make their settings which gives the non-frozen food priority in metering the cold air. I. E. you realy want your milk or beer in the 38 - 40 range . . . if it's off 5+ degrees there will be complaints. Yet you really don't care if the frozen food is -10 or -5 or 0 because it's frozen.

So what you want is to control the non-frozen side to mid 60s while the frozen side is keeping kegs cold at 38(drinking temp). You may accomplish this if skillful with adjusting the dampers . . . but probably not. In my ferm fridge the freezer section will intermittently freeze water, but not always. Actually when the outside air is hottest (summer), the compressor works harder to keep the ferm side in the mid-60s which usually results in frozen water (ice) in the freezer section. In cooler weather the frozen section isn't quite as cold.

Probably more than you wanted to know . . . but the maybe answer is probably most accurate. No harm in playing around with this, but I wouldn't buy a fridge expecting to nail the temps on both sides. The only sure way to hit ferm & drinking temps is to have two units . . . welcome to the obsession . . .

EDIT: posted simultaneous with Capt @billandsuz (we're the freezer geeks on the Forum)

 

Pony up and buy a $200 chest freezer and another temp controller if you want to ferment (not a bad idea in the TX heat)