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#1 (permalink) |
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Senior Member
Join Date: Apr 2008
Location: Madison, WI
Posts: 400
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I searched around and can't seem to find the answers to my questions, but i think that might be more of a function of me not having electrician experience, and things not being easily spelled out for me. So, please pardon the ignorance.
I'm trying to rig something to control fermentation temps, lager, etc. and i've got a chest freezer (free) which doesn't go above freezing temps when set at it's warmest setting. Which type of temperature controller would i need to get? How would this work, in general? From what i can figure it seems like the simplest way would be to plug the freezer into a temp controller that basically regulates the power (on/off) to the freezer to maintain the warmer temps? Or do i need to do alot more work on this? I'm just trying to get something made (preferrably on the cheap) to accurately and precisely hit temperatures using this chest freezer. Thanks.
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~~ Malted barley wants to become beer. ~~ |
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#3 (permalink) |
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The OG!
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What I'm counting on...as I have begun collecting parts for my Kreezer...
Yes, the temp control just plugs into the wall, and the freezer plugs into the controller.
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Seriously. I'm here for BEER It's Not The Size Of Your Rig That Counts....It's How Often You Use It. |
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#4 (permalink) |
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Junior Member
Join Date: May 2007
Location: Vermont
Posts: 22
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Here's what I bought on Ebay for my chest freezer, works great.
http://cgi.ebay.com/RefrigerationTemp-Control-Johnson-Control_W0QQitemZ370064763577QQihZ024QQcategoryZ42 911QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
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"If at first you don't succeed, try, try again. Then quit. There's no point in being a damn fool about it." W.C. Fields |
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#5 (permalink) | |
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Senior Member
Join Date: Aug 2007
Location: Naperville, IL
Posts: 1,232
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Quote:
I wouldn't buy the pre-wired ones. It is very simple to wire (pm if you need better diagrams) and takes about 1/2 hour. To get a controller pre-wired you're looking at about $30 more than you'll spend to wire it yourself. |
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#8 (permalink) |
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EAC in training.
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You should use at least #12 wire for a freezer, #10 would be better. #14 is a bit small and will be hard on the compressor when it starts up. Compressors have a high starting current and the resistance of the smaller wires will cause a voltage drop making it harder for the compressor to start.
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#9 (permalink) |
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Senior Member
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Important note to anyone using these diagrams: the numbers on the terminals don't match, so be sure to check the diagram on your temp controller before wiring!
Ed, I've seen this wiring diagram posted elsewhere and I'm confused by it. When wired as you show, the controller will have to be set to Heat mode (d0 set to Ht). Logically, I would have expected it to be wired the opposite way as I show below. This is the way I have mine wired and I have d0 set to Co. ![]() Do you have a specific reason for wiring to the NC side of the relay? -Joe
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Man Skirt Brewing Co. Beer related hints, tips, links and other good stuff. Fisher Woodcraft wood turning |
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#10 (permalink) | |
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Senior Member
Join Date: Apr 2008
Location: Madison, WI
Posts: 400
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Quote:
__________________
~~ Malted barley wants to become beer. ~~ |
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