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Side-by-Side to Fermentation Chamber Build

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Boerderij_Kabouter

Well-Known Member
Joined
Dec 21, 2007
Messages
7,763
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Location
Oconomowoc, Wisconsin
Hello everybody!

I am not quite done with this build but it is functional and I wanted to post up.

I recently picked up a side by side fridge and decided I wanted a BIG fermentation chamber. Here is the fridge... one standard 1990's era Amana:

CIMG2363.JPG


So first things first, in order to make this side by side a single chamber I had to cut out the middle wall.

CIMG2374.JPG


I used a dremel tool with a metal cutoff wheel to score a line around the metal at the edges. Then I grabbed the panel with a pliers and ripped away the metal.

CIMG2376.JPG


Then I knocked out most of the insulation.

CIMG2377.JPG
 
Then, I scored the other side of the panel and removed it in the same way.

CIMG2379.JPG


Next I cleaned up the edges of the metal divider to flush, and blushed off the remaining insulation.

CIMG2420.JPG


A wire brush worked really well for cleaning out insulation.

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Here is another view of the preped chamber

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I now have a big open space!
 
Here is a shot of the cooling unit:

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This unit has no coils in the walls and is very compact. It works well for my purposes.

Here is a shot of the original thermostat and humidity control:

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The thermostat is what will be bypassed with a LOVE controller.
 
Next comes the part of wiring. This fridge has a circuit diagram ont he back that was very helpful.

CIMG2433.JPG


With this diagram I could locate hot and common leads throughout the system and it made my life MUCH easier. I still double checked everything with a multimeter, just to make sure.

The first order of business was to plan where I would pickup my common and hot leads for the LOVE, and where the LOVE would be positioned.

I decided to take the hot leads directly from the original thermostat and the common from the cooling cavity. I will explain more as I go through the pics.

I decided the best place for the controller was in the upper left, so I put tit there....

marking out the opening:

CIMG2422.JPG


Cutting the hole with my trusty dremel, you can clean up the corners with a utility knife:

CIMG2423.JPG


I then drilled four marker holes in each corner of the opening through to the inside of the fridge.

CIMG2425.JPG
 
Now to wire the controller!

I purchased a LOVE TSS2-2100 dual stage controller from Dwyer so I can control both heat and cool in my chamber.

This diagram shows how to wire it.

Wiring_diagram_fro_Love_TSS2-21002.bmp


So, I wired in sections of 4" #14 solid cable from all the points I needed power, inserted the controller into my hole, and secured it.

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I used terminal blocks to make all my jumps.

White wire coming in is common from the systems white wiring picked up from main cooling area, left hand side of this pic. The brown board on the left has an extra spot for additional hook-ups (very handy).

CIMG2366.JPG


The black is hot from the system's red wiring and I picked it up directly from the original thermostat. I used wire nuts because I was lazy. Maybe I will go back and solder it later...

CIMG2438.JPG


The green wire is the switch wire and leads to the system end of the red wire located at the original thermostat. This is the connection the controller will switch on/off for cooling.

In the above diagram the black hot wire leads to terminals 5, 7, and 10 to provide hot power. The white common wire leads only to terminal 4. The green wire leads to terminal 8.
 
Here is a shot of the interior leading to the original thermostat, the main cooling compartment, and the controller.

CIMG2439.JPG


Now the second circuit needed to be wired for heating. I ran a second green wire with black stripes from terminal 11 down to the main cooling compartment. You can see the new green striped cable in this pic:

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..................

So now the controller is fully wired. I didn't have my heater yet and HAD to fire it up!

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:rockin:
 
Then it was time to reinstall the cosmetic covers and check out the setup.

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Looks Good.

At this point, my wife left the house with her camera and I have a bit of a gap in photos... :(

Anyway, I bought a small heater from Home Depot for $14 that has a resistive heater and a fan. I connected that to the green and black striped wire and the white common in the main cooling compartment.

CIMG2449.JPG
 
So that was it! I have the inside repainted to cover all surfaces. I bondoed over the exposed insulation, used two coates of primer, and top coated with appliance paint. It looks rather nice and pro.

then I installed two oak shelves. This puppy can hold about 7 carboys!

Here are some shots:

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The system works awesome! I know some do not need both heating and cooling, but in my climate I need both regularly, and now I don't have to change anything. Just press the set points and the system automatically heats or cools to maintain the desired temp.

I really like it already. Lagers, HERE I COME!!!! :mug:
 
Total build cost ~$200 if you had nothing. The controller and probe are $85 shipped, $15 in wires and terminals. $100 to get a fridge and some paint... Something around there anyway. I only cost me $85 out of pocket because I had the other stuff...
 
I would say it is a full weekend project. A couple hours to take out the shelves etc., an hour to take out the divider and clean up the insulation. Then maybe a couple hours to wire up the controller and wire in the heater. A couple hours to build the shelf and install it.

..... maybe 8 hours total. Some would be faster, I was kind of lazy about it because it is a fun project.
 
Now that this thread has been revived, I've got to ask: After using this for a while did you find the need to add recirc fans to even the temperatures between upper and lower shelves?
 
I'm excited about this. My dad's got an old side-by-side acquired as a freebie in our farm shop. Think I'll re-assign it to more, let's say, "productive" duty.
 
Now that this thread has been revived, I've got to ask: After using this for a while did you find the need to add recirc fans to even the temperatures between upper and lower shelves?

I will check tonight. I haven't yet. I am assuming that the temps should be fairly even because both the heater and the fridge have fans that blow whenever the heater of compressor are turned on.

I will report on any temp stratification tonight.
 
Ahoy hoy,
Damn you have to love American Ingenuity! This is the setup I have been looking for! Up here in Interior Alaska, the temps can vary so widely when its not winter, (80 in the day, high 30s at night, for example) that a rig like this would be the gift that keeps on giving. Beer, that is :D
I must salute you and your clever use of a pretty much otherwise useless for our hobby item. A side by side indeed! I love it
Salute' :tank: (picture volley of fire in tribute)
A great day to all.
 
After using this for a while did you find the need to add recirc fans to even the temperatures between upper and lower shelves?

I have measured it out and recirc fans are not necessary for my chamber. The temps are stable throughout until the door is opened and some air spills out.

However, I have fans in both the cooling unit and the heating unit that circulate air anytime heating/cooling is operational. I think this makes a pretty big difference.
 
Wow this is incredible. Any advice for someone that knows nothing about electrical wiring? Is there a less... dangerous approach?
 
It really isn't very difficult. If you can get your hands on the wiring diagram for your fridge I can help you wire it.

I am glad you like the project.

Is this something you can do over the phone? I mean, I don't have any of the stuff I need yet, but I plan to start looking for it. If I can find a fridge with the wiring diagram, I can scan it and post it for you. This would be an amazing addition to my setup. I just don't want to electrocute myself.
 
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