Refrigeration questions

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Pat

My refrigeration does not work quite well enough. Beer is cold but not quite cold enough. I believe I have one of the Adler Barbour(AB) Cold Machines. The evaporator works well too but it is tucked in an aft part of the ice box compartment. The cold air can not be transfered to the whole ice box well. I think I could solve my problem by moving the evaporator into the main part of the ice box. This is how my Catalina 30 was set up - it worked great. This would mean that the evaporator would have to be verticle. Can you take a horitonal evaporator and position it on its end? The reason I ask is because I know AB sells verticle and horizontal evaporators. Hate to buy a new evaporator if I don't need one. I did try insulating the outside of the box and new door seals but this only helped a little. Thanks for the comments/suggestions.
 
Dec 2, 2003
480
Catalina C-320 Washington, NC
You might try a fan....

Sometimes air circulation is the problem. Try a battery operated camping fan first. If that solves the problem, hardwire a small 12v computer cooling fan. These can usually be picked up free as scrap from one of your techie friends and only draw minimal current. Hook it into your compressor circuit and it will only run when the compressor does.
 
Feb 6, 2006
249
Hunter 23 Bay Shore, LI, NY
Try an easier and cheaper approach:

Obtain a pancake (computer) fan and mount it to the evaporator with cable ties so that it blows into the fridge compartment. Works great and uses very little power. You can mount an evaporator in any orientation, it is just a length of tubing with fins that the refrigerant "squirts" into from the calibrated orifice or thermal expansion valve, depending on your system. As it leaves its high pressure environment and rushes into the void caused by the larger diameter tubing and the suction of the compressor, the refrigerant expands from a high pressure liquid into a low pressure vapor, and so absorbs heat from the environment (your col box, in this case. It doesn't care whether the evaporator is up, down or sideways, it'll still do the same thing. edited to add: Chris Burti posted as I was writing. We agree, and nice suggestion on wiring the fan to the compressor circuit.
 

Taylor

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Feb 9, 2006
113
Warwick Cardinal 46 Seattle, WA
add a fan

Do I understand correctly that you have a dual compartment setup with the evaporator in the freezer part and a partition between the freezer and the fridge? If so, you might consider adding a thermostatically controlled fan in the partition. We need those beer cans as cold as possible. Edit: I know I hit submit a while ago, it appears to have hung and not posted. But looks like we are all on the same page about the fan.
 
Aug 9, 2005
772
Hunter 28.5 Palm Coast, FL
Could the system be low on charge?

Does the evaporator get icy cold? Does the condenser get hot? Is the fan for the condenser working? Is there decent ventilation in the compartment where the compressor/condenser are mounted?
 
P

Pat

Further clarification from Pat

No I don't have 2 compartments, but the evaporator sits high in the ice box into what seems like a cut out made especially for the evaporator. It allows access to open the freezer door to remove the ice cube trays. Thats all I use the freezer for. Yes the evaporator gets icy & frosty cold. Yes the condenser gets hot but I don't think this is an issue. I could provide some better airflow to make it work less I guess but the fan does work. I like the suggestions for the computer fan. I would just have to decide on where to mount it. Thanks again guys.
 
May 11, 2005
3,431
Seidelman S37 Slidell, La.
Boy, I really hate beer thats not cold enough

Warm beer is a real bummer. I would go first with the fan idea. The little computer fans are cheap, and work well.
 

Pops

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Apr 11, 2004
154
- - Albemarle Sound
battery fan

They sell a battery operated fan for ice boxes that runs an amazingly long time on (I think) 2 D cells. I used one in an icebox on a house boat. I had little faith in it when I bought it, but was very pleasantly surprised when it worked very well.
 
Jun 2, 2004
1,438
Oday 25 pittsburgh
I have found that boat refrigeration is not like home.

If you put warm beer in it, it will take almost forever to chill it. If you continually open it to check on the beer, it will never be cold. I know this is basic stuff, but if the box is open, it can't cool and it's recovery time is much longer than the average home refrig. The plate to air needs to be undisturbed to allow it to do it's job. One thing that kills a refrig, is pulling stuff out for a meal and letting it out too long so that when you put it back, the refrig is working on restoring the temp to the item you had out instead of making beer cold. Moving air does help both in and out of the box. I don't your experience on a boat with refrigeration. If it is limited, I hope the above was helpful. Just some thoughts. r.w.landau
 
Nov 12, 2006
256
Catalina 36 Bainbridge Island
Refridge

It helps to have a small fan to circulate the cold air. I have a C36, and the "ice box" is probably similar to the C30. We use a small fan that holds 2 D cells, and moves the air from the bottom to the top. This helps keep things at the upper levels colder.
 
Feb 26, 2004
23,348
Catalina 34 224 Maple Bay, BC, Canada
Put a few beers in the evaporator

and they'll chill realy fine. Depends on how quickly you consume the brew. Be creative. It's a boat
 
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