help with a VERY simple control box - Home Brew Forums
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Old 12-11-2009, 04:35 PM   #1
tkone
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Jan 2009
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hey guys,

so i'm just about finished building my "brewery" which is electric assist gas-stove top pots.

i've got a HLT with 120v 1500w element
i've got a boil kettle with a 120v 1500w element
i've got a march pump

only one of these will ever be running at a given time.

i'm not concerned about PID control (yet) or anything of that sort, but i'd like to build a box that had three switches on it so i can plug all those things into it and just plug one plug into the wall.

what's the easiest way to go about this? should i GFCI all the plugs on the box AND the wall? just the wall?

thanks!


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Old 12-11-2009, 04:40 PM   #2
Torg
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You only need one GFCI on the circuit. You could plug the entire thing into a GFCI plug on the wall.



 
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Old 12-11-2009, 04:44 PM   #3
tkone
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Jan 2009
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awesome.

can i just do this with light switches
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On tap:
You Porter, You Dug 'er Up (Munich/Crystal version)
Todd's Special Bitter
Brown Cascade Hoppy Brown Ale

Fermenting:
You Porter, You Dug 'er Up (Amber/Brown malt version)
Shortwrench IPA (Longhammer Clone)

 
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Old 12-11-2009, 04:50 PM   #4
Bobby_M
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I'd recommend 20a switches for the elements. What I would do is set up a single on/off toggle then have that go to a common on a SPDT toggle that would select one element or the other. That absolutely ensures you don't have both energized at the same time which would blow the breaker anyway.
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Old 12-11-2009, 05:18 PM   #5
tkone
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cool. so looking at a "master" switch and then a selector to designate which outlet to turn on so there's never a chance of mistakenly doing it?

so like something like this:
http://www.grainger.com/Grainger/items/2TPW5?Pid=search
(i mean that's overkill with the number of positions)

and then like a master on/off?
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On tap:
You Porter, You Dug 'er Up (Munich/Crystal version)
Todd's Special Bitter
Brown Cascade Hoppy Brown Ale

Fermenting:
You Porter, You Dug 'er Up (Amber/Brown malt version)
Shortwrench IPA (Longhammer Clone)

 
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Old 12-11-2009, 06:00 PM   #6
Ryan_PA
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I am partial to my toolbox based system, see my sig or click here http://www.byo.com/component/resourc...olbox-projects. I know there was a recent thread in this section (Simple Brewing...) that took this idea and incorporated system controls. Best part is, I think you can get the tool box for under $10 at any big home improvement store.

 
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Old 12-11-2009, 06:49 PM   #7
tkone
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Jan 2009
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awesome. i remember reading this don't know why i never connected that this is what i was looking for
__________________
On tap:
You Porter, You Dug 'er Up (Munich/Crystal version)
Todd's Special Bitter
Brown Cascade Hoppy Brown Ale

Fermenting:
You Porter, You Dug 'er Up (Amber/Brown malt version)
Shortwrench IPA (Longhammer Clone)

 
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Old 12-11-2009, 08:18 PM   #8
tkone
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Jan 2009
Posts: 153

what gauge wire do i need for this? 14?
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On tap:
You Porter, You Dug 'er Up (Munich/Crystal version)
Todd's Special Bitter
Brown Cascade Hoppy Brown Ale

Fermenting:
You Porter, You Dug 'er Up (Amber/Brown malt version)
Shortwrench IPA (Longhammer Clone)

 
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Old 12-11-2009, 08:21 PM   #9
tpgsr
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Nov 2009
NY
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10GA = 30A
12GA = 20A
14GA = 15A

As a basic rule of thumb. Length of the wires matters over long runs due to voltage drop, but I doubt as though you have to worry about that.

 
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Old 12-11-2009, 08:30 PM   #10
tkone
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Jan 2009
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cool. thank you. it's been a long time since ninth grade science.

should i use 12ga wire even though i'm doing 15a? does that provide any benefit? or is the resistance higher?


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On tap:
You Porter, You Dug 'er Up (Munich/Crystal version)
Todd's Special Bitter
Brown Cascade Hoppy Brown Ale

Fermenting:
You Porter, You Dug 'er Up (Amber/Brown malt version)
Shortwrench IPA (Longhammer Clone)

 
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