Coldbreak Brewing Giveaway - Open to All!

Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > How to achieve 52 degrees F
Reply
 
Thread Tools
Old 10-04-2012, 03:04 PM   #1
FredTheNuke
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2012
Location: Charlotte, NC
Posts: 784
Liked 84 Times on 68 Posts
Likes Given: 30

Default How to achieve 52 degrees F

OK folks I see many of you use window AC units for fermentation and storage coolers. I am building a 12 x 16 brewery building with a heavily insulated 4 x 12 walk in fermentation chamber. The digital controlled window AC units I looked at can only be set down to 61 degrees. Are you guys using Ranco type controllers to get the window AC units to get the room down colder by running wide open with their tstat disabled or relocated into hotter air? What am I missing?


__________________
Sour Fermentations In Progress
FredTheNuke is offline
 
Reply With Quote
Old 10-04-2012, 04:21 PM   #2
mcl
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2011
Location: hays, ks
Posts: 171
Liked 2 Times on 2 Posts
Likes Given: 3

Default

Have you seen this thread?
http://www.homebrewtalk.com/f51/my-l...-cooler-11440/

I have an AC unit with a manual thermostat. I didn't have to bypass the internal thermostat, instead I moved the adjustment screw.


mcl is offline
 
Reply With Quote
Old 10-04-2012, 06:24 PM   #3
porcupine73
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2012
Location: Fort Meade
Posts: 811
Liked 47 Times on 43 Posts
Likes Given: 513

Default

I've seen someone do it for an apple cooler using a coolbot. I didn't know it was called a coolbot at the time. I did know it looked expensive and impressive.

I think you could do your own 'coolbot' using a STC-1000. Maybe just wire up the cool contact to something that makes a bit of heat like a few watt resistor, then tape that to the temp sensor on the a/c unit. Presto, coolbot like action for maybe 1/10 the price.

eta ... but it would not have an countericing measures for the evaporator then. I suppose one could use a second STC-1000 to monitor the temp just in front of the evaporator so if it starts icing up to cut off the heat source to the a/c temp sensor. That still wouldn't be too bad pricewise.
porcupine73 is offline
 
Reply With Quote
Old 10-04-2012, 10:49 PM   #4
FredTheNuke
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2012
Location: Charlotte, NC
Posts: 784
Liked 84 Times on 68 Posts
Likes Given: 30

Default

Sweet! I missed that post! Thanks.
FredTheNuke is offline
 
Reply With Quote
Old 10-04-2012, 11:06 PM   #5
porcupine73
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2012
Location: Fort Meade
Posts: 811
Liked 47 Times on 43 Posts
Likes Given: 513

Default

I think the only main thing to overcome is evaporator icing countermeasures (that is a Subaru term). It's much more likely to ice the lower the temp goes as condensation forms on the evaporator. That's really all the coolbot is working to prevent in making the a/c unit go lower than intended.


porcupine73 is offline
 
Reply With Quote
Reply


Thread Tools



Forum Jump

Newest Threads

LATEST SPONSOR DEALS