HOMEBREW Digest #5838 Wed 11 May 2011

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  Re: Cold room - modifying A/C (jrdunne) ("Mike O'Brien")
  Re: Cold room - modifying A/C ("")
  RE: Cold room - modifying A/C (IT)" <stjones@eastman.com>
  MIME Acceptance (Althelion)
  reply to Subject: Cold room - modifying A/C (Thom Cannell)

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---------------------------------------------------------------------- Date: Wed, 11 May 2011 03:38:37 +0000 (UTC) From: "Mike O'Brien" <mobrien315221mi at comcast.net> Subject: Re: Cold room - modifying A/C (jrdunne) The CoolBot turns any brand of off-the-shelf, window-type air conditioning unit (purchased separately) into a turbo-charged cooling machine. http://www.storeitcold.com/ Mike Return to table of contents
Date: Wed, 11 May 2011 06:30:00 -0700 From: "" <chrisn at wt.net> Subject: Re: Cold room - modifying A/C Joe Dunne wants to modify a window A/C unit to cool his beer and wine cellar to 50F. I am not an A/C technician, and perhaps one will chime in on this issue. Until then, I'll say this. While I am sure you can modify and/or replace the thermostat to achieve this puppose, you will probably end up killing the window unit. These units generally have a minimum temperature of 60, as you have discovered. This is becasue at temperatures below 60, all of the refrigerant may not vaporize in the expansion coils, resulting is liquid refrigerant returning to the compressor. This is very bad. With the right insullation, you can get the window unit to cool to your desired 50F, but you will have to replace said window unit every couple of years due to compressor failure. chris north Return to table of contents
Date: Wed, 11 May 2011 10:00:04 -0400 From: "Jones, Steve (IT)" <stjones at eastman.com> Subject: RE: Cold room - modifying A/C Joe Dunne asks about 'elegant' solutions for bypassing the thermostat on an A/C unit used to cool a cold room. I've run a 4' x 8' x 6' walk-in from a 12,000 BTU A/C unit for over 5 years now. Here is what I did: I mounted an outlet box on the inside of the cooler and a Johnson analog temperature control unit mounted on the outside. The Johnson cord and capillary tube run into the cooler, with the capillary bulb immersed into a test tube full of water (to minimize cycling). I bypassed the thermostat in the AC unit and plug the power cord into the Johnson cord. I had a problem with the AC coils icing up after it shut off. To prevent this I added a second power cord to the AC unit to control the fan. This is plugged into the other socket in the outlet box. The fan is on continuously, and does add a bit to your electric bill, but not much. At 11-12c per kwh, a 1/2 amp fan will add less than $5 to your monthly bill. More detail can be found at http://www.franklinbrew.org, SfH Members Pages, Steve J, Walkin Cooler. Steve Jones Return to table of contents
Date: Wed, 11 May 2011 15:54:09 +0000 (UTC) From: Althelion at comcast.net Subject: MIME Acceptance This is a test post. It is only a test. If this were a real post, then it would appear in The Homebrew Digest. I hope that your coding refinements work. I've lurked here for far too long. Alan Pearlstein Commerce Township, Michigan NMBA (Next Major Brewing Action) - Bottling a roggenbier this weekend Return to table of contents
Date: Wed, 11 May 2011 15:19:03 -0400 From: Thom Cannell <Thom at CannellAndAssociates.com> Subject: reply to Subject: Cold room - modifying A/C Joe Dunn asked; I'm wondering if anyone has an elegant solution for bypassing the thermostat on an a/c. I'm looking to cool my beer and wine cellar to around 50 degrees and the window unit I have doesn't want to cool below 60. For now, I've pulled the a/c temperature probe out through the front and am planning to insert it into a can with a small incandescent bulb to make it think the room is warmer. I'm hoping for a more refined solution for the long term. - ------] I was looking into the same idea, these are sites I looked at and they my satisfy your needs. http://littlegreenhouse.com/accessory/controls.shtml http://www.storeitcold.com/index.php "If something seems too good to be true it's best to shoot it, just in case." Fiona Glenanne / Burn Notice Thom Cannell Thom _at_ CannellAndAssociates. c o m Return to table of contents
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