Happy HolidaySs Giveaway - Last Sponsor Giveaway of the Year!

Come Enter the BrewDeals/FastFerment Giveaway!


Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Temperature controller question
Reply
 
LinkBack Thread Tools
Old 12-13-2011, 09:01 AM   #1
Murray
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2011
Location: London, UK
Posts: 84
Default Temperature controller question

I am thinking of trying to turn a chest freezer into a keezer, and want to install a temperature controller. Before doing so, I want to make sure I know what to do. I have looked on this site, and many other places on the net and seen demonstrations and videos of how to make a keezer, but have not been able to answer some questions around the temperature controller :

Currently, the freezer has its own thermostat (I have it set to -19C / -2F). The freezer is plugged in to the mains wall socket.

If I buy a controller, I plug the controller into the mains wall socket, I put the probe (attached to the controller) into the freezer and my question is around connecting the controller to the freezer : Do I

1 : Plug the freezer into the controller (ie the plug that used to go into the mains socket now gets plugged into the controller, so the freezer gets on/off power when the controller allows it to, or :

2 : keep the freezer plugged into the mains wall socket as before, but connect the thermostat from the freezer to the controller somehow so that the ffreezer thinks it has a new thermostat (the controller)

In 1 the thermostat is set to -2F which is way colder than I ever need it, so my thinking is that when my temperature gets above my desired temperature (set by controller), the controller allows power to the freezer, and because my desired temperature is higher than the -2F setting on the freezer thermostat, it powers up and tries to cool the freezer down to -2F. When it hits my desired temp (say 45F) the controller cuts the power to the freezer, and this cycles continues.

In 2, there is always power going to the freezer, but the governer is now the freezer thermostat, which is wired into the controller.

Option 2 seems much more complicated to me than option 1, and I am not that experienced with this stuff.

Can someone let me know which way it works (hopefully there are controllers that operate like option 1) and if option 2 is my only bet, does anyone have a good resource or link to explain how to actually do this at home?

Many thanks in advance.
Murray

__________________
Murray is offline
 
Reply With Quote Quick reply to this message
Old 12-13-2011, 09:19 AM   #2
angelamoncler
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: new york, usa
Posts: 1
Default i just start

i just start to have a discussin on the site. i hope i can learn much from this forum.

__________________
angelamoncler is offline
 
Reply With Quote Quick reply to this message
Old 12-13-2011, 09:21 AM   #3
boist
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
boist's Avatar
Recipes 
 
Join Date: Aug 2011
Location: K. Byalik, Israel
Posts: 191
Liked 4 Times on 4 Posts
Likes Given: 4

Default

Option 1. Plus, make sure that your controller has a compressor delay option which is set to at least 5-10 minutes (depending on how old your freezer is). This will avoid having the freezer cycle on/off too rapidly and burn out. Might also want to change the temp range to about 1F (so if you want your beer at, say 40F. You set it to 39.5 +/- 1) which will let the freezer work longer sessions with less start-ups.

Also, make sure you're installing the probe ON one of the kegs (tape it there, and put a folded up paper towel around it to insulate it). This will allow you to control the temp of the beer, rather than the temp of the air in the freezer. Typically, by the time the air gets to 32F, liquid in the freezer is in the twenties.

__________________

My Beer and Brewing Blog:
http://threecatsbrewery.blogspot.com

boist is offline
LKABrewer Likes This 
Reply With Quote Quick reply to this message
Old 12-13-2011, 09:45 AM   #4
emjay
HBT_SUPPORTER.png
Feedback Score: 1 reviews
 
emjay's Avatar
Recipes 
 
Join Date: Jan 2011
Location: Toronto, Ontario
Posts: 12,694
Liked 1714 Times on 1602 Posts
Likes Given: 1

Default

You can actually do it both ways, but option 1 is easier to do, and easier to revert back. And it seems you're more comfortable with that option, so you might as well just stick with it.

Option 2 is possible, but I'd never recommend it.

__________________
emjay is offline
 
Reply With Quote Quick reply to this message
Old 12-13-2011, 11:32 AM   #5
Murray
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2011
Location: London, UK
Posts: 84
Default

you guys have made my day. I was dreading getting a complicated reply with loads of electronic work necessary. Next question : Any ideas on what temperature controller and probe I should buy? I work off 240V mains here in the UK, and ideally want to buy form the UK

__________________
Murray is offline
 
Reply With Quote Quick reply to this message
Old 12-13-2011, 01:09 PM   #6
Murray
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2011
Location: London, UK
Posts: 84
Default Johnson Controls analog temperature controller

I have seeen the Johnson controls temperature controller on many US homebrew sites. It looks like exactly the thing I need, though I cannot find it in the UK. Given that the US operates on 120V mains voltage, and the UK operates on 230V mains voltage, would I be able to use the unit in the UK if I ordered it online and bought it from the USA?

__________________
Murray is offline
 
Reply With Quote Quick reply to this message
Old 12-13-2011, 01:11 PM   #7
emjay
HBT_SUPPORTER.png
Feedback Score: 1 reviews
 
emjay's Avatar
Recipes 
 
Join Date: Jan 2011
Location: Toronto, Ontario
Posts: 12,694
Liked 1714 Times on 1602 Posts
Likes Given: 1

Default

Go take a look at the "eBay aquarium temp controller build" thread... you can get a 220v model and it'll be like 1/4 the price of a similar-functioning Johnson.

__________________
emjay is offline
 
Reply With Quote Quick reply to this message
Old 12-13-2011, 01:25 PM   #8
CGVT
Senior Member
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
CGVT's Avatar
Recipes 
 
Join Date: Jun 2011
Location: Spanish Fort, AL
Posts: 1,585
Liked 376 Times on 247 Posts
Likes Given: 269

Default

If you are afraid of wiring like me, there are step by step instructions, with pictures for wiring the "ebay" aquarium controller in the Ebay controller with cheap wal-mart parts (or something like that. I think it was started by Misplaced Canuck.

It is really simple and cheap. I have two controllers, the Johnson and the Ebay. If I would have known how simple it was to build the Ebay controller I would have gotten two and saved about $70.

__________________

"Filled with mingled cream and amber I will drain that glass again. Such hilarious visions clamber through the chambers of my brain--Quaintest thoughts--queerest fancies come to life and fade away; Who cares how time advances? I am drinking ale today"-Edgar Alan Poe

My Keezer build: http://www.homebrewtalk.com/f51/keez...y-turn-340755/

Quote:
Originally Posted by TyTanium View Post
Do what you like, brew what you like. Don't be a tool.
CGVT is offline
 
Reply With Quote Quick reply to this message
Old 12-13-2011, 01:36 PM   #9
emjay
HBT_SUPPORTER.png
Feedback Score: 1 reviews
 
emjay's Avatar
Recipes 
 
Join Date: Jan 2011
Location: Toronto, Ontario
Posts: 12,694
Liked 1714 Times on 1602 Posts
Likes Given: 1

Default

Yeah... it might seem intimidating, but it's actually really simple, and I promise that *anyone* can do it.

__________________
emjay is offline
 
Reply With Quote Quick reply to this message
Old 12-13-2011, 02:05 PM   #10
CGVT
Senior Member
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
CGVT's Avatar
Recipes 
 
Join Date: Jun 2011
Location: Spanish Fort, AL
Posts: 1,585
Liked 376 Times on 247 Posts
Likes Given: 269

Default

This is the thread:

I am a wiring idiot and I was able to do it. I used the controller with heat and cool, but you can get one that is cheaper that only controls the cold.

http://www.homebrewtalk.com/f51/ebay...-parts-261506/

__________________

"Filled with mingled cream and amber I will drain that glass again. Such hilarious visions clamber through the chambers of my brain--Quaintest thoughts--queerest fancies come to life and fade away; Who cares how time advances? I am drinking ale today"-Edgar Alan Poe

My Keezer build: http://www.homebrewtalk.com/f51/keez...y-turn-340755/

Quote:
Originally Posted by TyTanium View Post
Do what you like, brew what you like. Don't be a tool.
CGVT is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Johnson Analog Temperature Controller Temperature Profile Coastarine Equipment/Sanitation 4 10-11-2010 04:58 PM
Temperature Controller question Phunhog Equipment/Sanitation 4 08-08-2010 08:38 PM
Temperature controller question (Ranco/Johnson) mrgstiffler Equipment/Sanitation 3 06-12-2010 06:29 AM
Love Temperature Controller Question... Beer_Maker Equipment/Sanitation 1 06-26-2009 02:40 AM
temperature controller question elpresidente Equipment/Sanitation 3 09-15-2008 11:56 PM



Newest Threads

LATEST SPONSOR DEALS