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Home Brew Forums > Home Brewing Beer > DIY Projects > Kegerators and Keezers > Will a STC 1000 work on any fridge?
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Old 05-07-2013, 09:42 PM   #1
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Default Will a STC 1000 work on any fridge?

I'm going and picking up a 7 cubic foot chest freezer tomorrow morning for a new ferm chamber but before I spend the cash are there any freezers the STC 1000 aren't compatible with?

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Old 05-07-2013, 09:46 PM   #2
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Yes...most people wire the STC-1000 to an electrical outlet housed in a box, then plug the fridge into the outlet. So you're not actually tapping into or overriding the fridges wiring/thermostat.

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Old 05-07-2013, 09:48 PM   #3
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Quote:
Originally Posted by TyTanium
Yes...most people wire the STC-1000 to an electrical outlet housed in a box, then plug the fridge into the outlet. So you're not actually tapping into or overriding the fridges wiring/thermostat.
Okay I looked at the schematics and I just wanted to make sure no one had any particular problems with any fridges I think I'm just being a little to over cautious.
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Old 05-07-2013, 09:51 PM   #4
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Originally Posted by will_rouse View Post
Okay I looked at the schematics and I just wanted to make sure no one had any particular problems with any fridges I think I'm just being a little to over cautious.
Essentially you're creating an outlet, like the one on the wall you used to plug the fridge into, except this one turns the power on and off based on temps. You crank the fridge thermostat to coldest setting and let the STC cut the power to the fridge/turn it on as needed. The fridge itself doesn't matter. You just plug it into the STC controlled outlet.
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Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!
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Old 05-07-2013, 09:59 PM   #5
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Are they all 220V or can you buy them 110V?

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Old 05-07-2013, 10:01 PM   #6
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Are they all 220V or can you buy them 110V?
Both are available. Check the listing carefully. There are several threads here that link to 110v models, which is what you obviously want for a regular fridge in the US
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Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!
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Old 05-07-2013, 10:12 PM   #7
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There may be some applications the STC 1000 is not acceptable for. I believe it is rated to carry 5 or 10 Amps. Many fridges/freezers draw more current than this when the compressor starts up. Once they are running, compressors draw less current, so it may not be an issue. I've seen plenty of fridges controlled by an STC 1000, so obviously it can be done. The question is, is it safe or will it lead to equipment failure? I really don't know. When I wired up from fridge to use it for fermenting and lagering I used a Love controller that was rated to handle the current of the fridge at compressor start-up. Probably not necessary, but at least I feel like I did it "right".

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Old 05-07-2013, 10:15 PM   #8
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There may be some applications the STC 1000 is not acceptable for. I believe it is rated to carry 5 or 10 Amps. Many fridges/freezers draw more current than this when the compressor starts up. Once they are running, compressors draw less current, so it may not be an issue. I've seen plenty of fridges controlled by an STC 1000, so obviously it can be done. The question is, is it safe or will it lead to equipment failure? I really don't know. When I wired up from fridge to use it for fermenting and lagering I used a Love controller that was rated to handle the current of the fridge at compressor start-up. Probably not necessary, but at least I feel like I did it "right".
It's 10A on the 120v models.
http://www.amazon.com/All-purpose-Te...uctDescription

I think most fridges are under that for start-up, but I've been wrong once or twice...
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Old 05-07-2013, 10:22 PM   #9
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It's 10A on the 120v models.
http://www.amazon.com/All-purpose-Te...uctDescription

I think most fridges are under that for start-up, but I've been wrong once or twice...
I agree, most fridges have a running rating less than 10A. But many have a start-up draw of more than 10A. It's for a very short time, so it probably doesn't even matter. Basically, I just over-engineered my fridge. The Love controller I have is rated for 16A.
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Old 05-07-2013, 10:28 PM   #10
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Wire it through a $5.00 30 amp relay. That way you don't have to worry about the STC relay sizing.

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