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Old 03-22-2011, 04:10 PM   #81
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ok. so what i want to do is connect the bottom two, that are turned perpendicular to the others, to the thermostat and transformer, then connect the wires from the wall to the outlet through two of the other poles? does it matter which ones i use? also it looks kinda little to be running 120 volts through.
Yes, the two turned perpendicular go to the coil. The two adjacent to it are the poles, and the next two are the throws.

Each pole will have one throw it is normally in contact with. You want to connect to the opposite one. I'm not sure which one that is, but you could test it pretty easily.

It should not matter which pole you use.

As for the size of the relay, as long as its rated for the voltage and amperage you are running across it, you should be OK.
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Old 03-22-2011, 04:25 PM   #82
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its rated for the amps and voltage i need. does this look right?

****

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I'm getting ingredients in the mail today, and I can't even taste my beer yet. What should I do?
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I would make a yeast starter, and pitch it into your mailbox.

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Old 03-22-2011, 04:28 PM   #83
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at my work computer. wont let me upload the picture. i'll ask again when i get home. thanks man

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I'm getting ingredients in the mail today, and I can't even taste my beer yet. What should I do?
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I would make a yeast starter, and pitch it into your mailbox.
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Old 03-24-2011, 03:15 AM   #84
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this looks very interesting....

im hoping someone can help with a question:

Is this something that could be put in charge of a fermentation chamber for maintaining ale fermentation temps?

Im looking at the son of a fermentation chiller instead of a fridge for my cell design, and Im also thinking of adding a heater element so the chamber can go both ways (my garage is where im planning to operate this rig.

anyone else doing this?

love the DIY stuff... thanks for sharing.

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Old 03-24-2011, 08:14 AM   #85
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That is pretty much how I plan on using mine, although I will be using a refrigerator. I have seen some people who have implemented it primarily for heating and have just hooked an internal fan up for the cooling to circulate the air that has been cooled by the ice throughout the chamber and then used something like one of those reptile infrared heaters for the heating aspect.

The general principal remains the same - you need a way to trigger your cooling and heating actions. Only real difference, from what you are looking to do, is likely that you will only need AC voltage to drive whatever heating element you plan on using. If you are going to use a fan for cooling circulation, you can either get a 120V fan to run off of line voltage, or provide a lower voltage source to power a lower voltage fan - i.e. a 12V DC fan powered by another power source, etc.

Overall, the design of these temperature controllers provides a great bit of versatility. You can even use them for other non-brewing applications. Greenhouse temperature control would be a good example of that.

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Old 03-24-2011, 08:34 PM   #86
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please let me know if this looks right

File Type: bmp relay.bmp (17.9 KB, 419 views)
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I'm getting ingredients in the mail today, and I can't even taste my beer yet. What should I do?
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I would make a yeast starter, and pitch it into your mailbox.
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Old 03-24-2011, 09:54 PM   #87
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please let me know if this looks right
I don't think so. You probably will connect the power supply through two terminals which are in the same column.

Not all relays are the exact same, but thats the typical configuration.

You can always test, either with a continuity tester, or some low voltage signal. (Before I got a digital multimeter, I tested mine by connecting a speaker cable across it and knew it was working when the sound would turn on and off)

The lower one is probably the pole, then there is a NC throw and a NO throw. (normally open and normally closed). Connect your power supply across the pole and the NO terminal.

Hope this works for you.
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Old 03-25-2011, 04:17 AM   #88
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ok. i think i see what your saying. sorry for all the questions. i really have know idea what i'm doing. but i can test it with something else, like a speaker, or a small light bulb or something?

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Originally Posted by mrk00k View Post
I'm getting ingredients in the mail today, and I can't even taste my beer yet. What should I do?
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I would make a yeast starter, and pitch it into your mailbox.
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Old 03-25-2011, 06:11 AM   #89
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ok. i think i see what your saying. sorry for all the questions. i really have know idea what i'm doing. but i can test it with something else, like a speaker, or a small light bulb or something?
Yes, and for the love of God be careful.

It may not be 240V, but still enough to hurt and/or kill you, or burn your house down.

Use appropriate sized wire, and insulate well (especially at relay terminals). I would recommend these:

Besides that, Good luck!
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Old 03-25-2011, 12:19 PM   #90
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i will be very careful. i get what all of the parts are doing, i'm just not sure about these relays. all they had at radio shack was the coils. they didn't have any of the solid state ones that were in some of the earlier posts. i'll be sure to check and double check everything. thanks for the recommendation, i'll see if i can find some of those.

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Originally Posted by mrk00k View Post
I'm getting ingredients in the mail today, and I can't even taste my beer yet. What should I do?
Quote:
Originally Posted by jsweet View Post
I would make a yeast starter, and pitch it into your mailbox.
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