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Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > Help wiring temperature controller
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Old 08-31-2012, 04:55 PM   #1
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Default Help wiring temperature controller

I ordered this temperature controller form ebay:

http://www.ebay.com/itm/320926548163...84.m1497.l2649

Here's a picture that I scanned of the wiring diagram:



I followed a guide for this type of temperature controller, which looks exactly the same. So I ordered this one, and the wiring diagram is slightly different. If someone could photoshop me what to put where, that would be very helpful. It doesn't exactly specify which whether 1 or 2 is for the hot wire. The temp probe is self explanatory, but 4 seems to share the temp probe and "function control", which I'm not sure what that is anyway.

It was cheap, so I'm not worried about guessing with it, but we have a pigroast in a couple weeks that we were hoping to have some carbonated beer for. Thanks for the help.

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Old 08-31-2012, 05:08 PM   #2
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You are over thinking it.
Since it is not a 3 wire ac input (no ground) it really doesn't matter how you hook it up on 1&2.
Terminal 4 is the common for both the temp probe and function control, so just land your probe between 3&4. Function control is likely rigged to an optional switch of some kind, but you shouldn't need to worry about that.

The only thing you need to be sure of is to make sure your load does not exceed 5amps.
Depending on the size of your fridge the load can be anywhere between 3-10 amps; there should be a sticker somewhere on the fridge that details the max current.

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Old 08-31-2012, 05:33 PM   #3
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Hmm it says 5 amps, is that pushing it? Also, speaking of the ground wire, can I just bypass the controller for the ground, or leave it out completely?

Also the terrible instructions that came with it claim "Relay contact current: Rated 10A"

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Old 08-31-2012, 05:35 PM   #4
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Quote:
Originally Posted by doodoobutter View Post
Hmm it says 5 amps, is that pushing it? Also, speaking of the ground wire, can I just bypass the controller for the ground, or leave it out completely?

Have to bypass the controller for ground because there isn't one on the controller.
Just run the ground directly to the ground on the outlet.
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Old 08-31-2012, 05:38 PM   #5
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That's what I thought, don't know much about wiring things :P

I updated my last post before I saw yours, but I'm wondering about the limitations of this controller. According to the paperwork that came with it:

Also the terrible instructions that came with it claim "Relay contact current: Rated 10A"

Or is mredge73 correct about the 5A limitation?

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Old 08-31-2012, 05:40 PM   #6
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I have this same controller. Am at work but when I get home I will draw and send wiring diagram. It's one that makes you think to much. It really simple to hook up though

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Old 08-31-2012, 05:49 PM   #7
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Thank you I would really appreciate that. I'd feel a lot more comfortable with some "tried and true" wiring from someone else with the same controller.

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Old 08-31-2012, 06:00 PM   #8
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Quote:
Originally Posted by doodoobutter View Post

Also the terrible instructions that came with it claim "Relay contact current: Rated 10A"

Or is mredge73 correct about the 5A limitation?
The eBay link you had said 5A on it.
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Old 08-31-2012, 06:06 PM   #9
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I have two of these controllers one on my fermentation fridge and one on keezer and haven't had problems.

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Old 08-31-2012, 06:06 PM   #10
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I see, I didn't notice that. I guess there's only one way to find out the truth... do you think the freezer claiming 5A could cause a problem if the controller is in fact rated at 5A? I guess I didn't look into this very well before hand lol. What model do most other people use? I'm just wondering so I know what to order next if this thing goes poof.

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