New Giveaway - Wort Monster Conical Fermenter!

Home Brew Forums > Home Brewing Beer > Electric Brewing > Parts needed?




Reply
 
LinkBack Thread Tools Display Modes
Old 12-31-2012, 03:30 PM   #11
shtank
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2010
Location: Wake Forest, North Carolina
Posts: 65
Default

Quote:
Originally Posted by jeffmeh View Post
Why a 24V coil for the contactor as opposed to a 120V or 240V coil? Do you have a need for a transformer in your control panel?

The switch listed on ebay does not list the voltage (or I missed it).
I though it was.
So basically I just need 240v 40A contactor for that switch?


__________________
shtank is offline
 
Reply With Quote Quick reply to this message
Old 12-31-2012, 04:15 PM   #12
slakwhere
Feedback Score: 1 reviews
Recipes 
 
Join Date: Dec 2009
Location: Salt Lake City, Utah
Posts: 755
Liked 19 Times on 18 Posts
Likes Given: 9

Default

i assumed he was using them since they are usually cheaper than the 240v coil variety. but i guess i should have said something.

if possible you for sure want a 120v coil or a 240v coil for the contactor. and the contacts should be rated for 240v 20a or higher. for a few bucks more, i'd raise the rating of the contacts.



__________________
slakwhere is offline
 
Reply With Quote Quick reply to this message
Old 01-01-2013, 08:08 PM   #13
shtank
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2010
Location: Wake Forest, North Carolina
Posts: 65
Default

Ok so my biggest hang up is using 240v vs 120v Every thing I read seems to talk about 120v if I copy Kol's wiring, Will I need a transformer for the indicator light? or should I just not use a light?



Will this same setup work with my 240v 20Amp service?

I can use 120v if you think it would be easier.

Thanks again for all the help I am learning as I go and promise not to plug this thing in to the wall until further review.

__________________
shtank is offline
 
Reply With Quote Quick reply to this message
Old 01-01-2013, 08:38 PM   #14
slakwhere
Feedback Score: 1 reviews
Recipes 
 
Join Date: Dec 2009
Location: Salt Lake City, Utah
Posts: 755
Liked 19 Times on 18 Posts
Likes Given: 9

Default

120v uses 1 hot, 1 neutral and 1 ground (which you are STILL ignoring).

240v uses 2 hot, 1 neutral and 1 ground. the 2 hot lines are basically alternating phase 120v. take either hot leg, a neutral and a ground and you get 120v. take 2 hot, a neutral and you get 240v.

this diagram will not work for 240v. you do not understand how 240v works. you're missing 2 inputs to the plug, there's no ground. i have no idea why that 50a shunt is there. there's no heating element in the diagram, so this is a really elaborate switch that turns on a light bulb.

please, for the love of pete, find a buddy who has an electronics background to help you locally. you're missing a LOT of stuff. you're going to burn your house down, electrocute yourself or blow up a lot of gear. most probably all 3.

__________________
slakwhere is offline
 
Reply With Quote Quick reply to this message
Old 01-02-2013, 03:52 PM   #15
jeffmeh
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
jeffmeh's Avatar
Recipes 
 
Join Date: Feb 2009
Posts: 1,749
Liked 123 Times on 105 Posts
Likes Given: 15

Default

Quote:
Originally Posted by slakwhere View Post
120v uses 1 hot, 1 neutral and 1 ground (which you are STILL ignoring).

240v uses 2 hot, 1 neutral and 1 ground. the 2 hot lines are basically alternating phase 120v. take either hot leg, a neutral and a ground and you get 120v. take 2 hot, a neutral and you get 240v.

this diagram will not work for 240v. you do not understand how 240v works. you're missing 2 inputs to the plug, there's no ground. i have no idea why that 50a shunt is there. there's no heating element in the diagram, so this is a really elaborate switch that turns on a light bulb.

please, for the love of pete, find a buddy who has an electronics background to help you locally. you're missing a LOT of stuff. you're going to burn your house down, electrocute yourself or blow up a lot of gear. most probably all 3.
Actually, 240v does not have a neutral, as 2 hots will do, with a ground for safety. I absolutely agree with your last point though. The OP really should not be undertaking this without a much better understanding of the workings.

OP, if you keep studying Kal's site, and you get to the point where you really understand how it works and why it is wired the way it is, then consider undertaking the project. Otherwise, get some help (and it's never a bad idea to get a second pair of eyes, in any case).

Lastly, the picture you included is one of Kal's intermediate wiring steps. E.g., it does not show the seocnd hot leg, as at that point in the instructions he had yet to connect it.
__________________
jeffmeh is offline
 
Reply With Quote Quick reply to this message
Old 01-02-2013, 04:08 PM   #16
slakwhere
Feedback Score: 1 reviews
Recipes 
 
Join Date: Dec 2009
Location: Salt Lake City, Utah
Posts: 755
Liked 19 Times on 18 Posts
Likes Given: 9

Default

it doesn't HAVE to have a neutral (240v heating elements don't have a neutral, just 2 hots) ... but it's in your box, it needs to be accounted for.



__________________
slakwhere is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Firestone Keg Parts Needed- HELP HopSong Bottling/Kegging 8 10-02-2012 05:59 AM
parts needed reinstone Bottling/Kegging 6 08-14-2012 02:43 AM
First timer. Have parts from two kits, what else needed?? Danzilla Beginners Beer Brewing Forum 10 11-27-2010 02:49 PM
fermenator parts needed protocol_droid Equipment/Sanitation 0 05-08-2010 06:50 PM
A little help needed for keezer parts RBChallenger DIY Projects 7 03-15-2009 05:10 PM